Inorganic compounds that contain cadmium as an integral part of the molecule.
An element with atomic symbol Cd, atomic number 48, and atomic weight 114. It is a metal and ingestion will lead to CADMIUM POISONING.
Poisoning occurring after exposure to cadmium compounds or fumes. It may cause gastrointestinal syndromes, anemia, or pneumonitis.
A cadmium halide in the form of colorless crystals, soluble in water, methanol, and ethanol. It is used in photography, in dyeing, and calico printing, and as a solution to precipitate sulfides. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)
Unstable isotopes of cadmium that decay or disintegrate emitting radiation. Cd atoms with atomic weights 103-105, 107, 109, 115, and 117-119 are radioactive cadmium isotopes.
A low-molecular-weight (approx. 10 kD) protein occurring in the cytoplasm of kidney cortex and liver. It is rich in cysteinyl residues and contains no aromatic amino acids. Metallothionein shows high affinity for bivalent heavy metals.
Metals with high specific gravity, typically larger than 5. They have complex spectra, form colored salts and double salts, have a low electrode potential, are mainly amphoteric, yield weak bases and weak acids, and are oxidizing or reducing agents (From Grant & Hackh's Chemical Dictionary, 5th ed)
A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.19, symbol Pb. (Dorland, 28th)
A metallic element of atomic number 30 and atomic weight 65.38. It is a necessary trace element in the diet, forming an essential part of many enzymes, and playing an important role in protein synthesis and in cell division. Zinc deficiency is associated with ANEMIA, short stature, HYPOGONADISM, impaired WOUND HEALING, and geophagia. It is known by the symbol Zn.
Poly-glutathione peptides composed of (Glu-Cys)n-Gly where n is two to seven. They are biosynthesized by glutathione gamma-glutamylcysteinyltransferase and are found in many PLANTS; YEASTS; and algae. They sequester HEAVY METALS.
Spectrophotometric techniques by which the absorption or emmision spectra of radiation from atoms are produced and analyzed.
Substances or energies, for example heat or light, which when introduced into the air, water, or land threaten life or health of individuals or ECOSYSTEMS.

Cloning and expression of cadD, a new cadmium resistance gene of Staphylococcus aureus. (1/228)

A cadmium resistance gene, designated cadD, has been identified in and cloned from the Staphylococcus aureus plasmid pRW001. The gene is part of a two-component operon which contains the resistance gene cadD and an inactive regulatory gene, cadX*. A high degree of sequence similarity was observed between cadD and the cadB-like gene from S. lugdunensis, but no significant similarity was found with either cadA or cadB from the S. aureus plasmids pI258 and pII147. The positive regulatory gene cadX* is identical to cadX from pLUG10 over a stretch of 78 codons beginning at the N terminus, but it is truncated at this point and inactive. Sequence analysis showed that the cadmium resistance operon resides on a 3,972-bp element that is flanked by direct repeats of IS257. The expression of cadD in S. aureus and Bacillus subtilis resulted in low-level resistance to cadmium; in contrast, cadA and cadB from S. aureus induced higher level resistance. However, when the truncated version of cadX contained in pRW001 is complemented in trans with cadX from plasmid pLUG10, resistance increased approximately 10-fold suggesting that the cadmium resistance operons from pRW001 and pLUG10 are evolutionarily related. Moreover, the truncated version of cadX contained in pRW001 is nonfunctional and may have been generated by deletion during recombination to acquire the cadmium resistance element.  (+info)

Evaluation of three gamma detectors for intraoperative detection of tumors using 111In-labeled radiopharmaceuticals. (2/228)

Attempts to detect tumors with intraoperative scintillation using tumor-binding radiopharmaceuticals have intensified recently. In some cases previously unknown lesions were found, but in most cases no additional lesions were detected. In this study the physical characteristics of three detector systems and their ability to detect tumors through accumulation of an 111In-labeled radiopharmaceutical were investigated. The first was a sodium iodide (NaI[TI]) detector; the second, a cesium iodide (CsI[TI]) detector; and the third, a cadmium telluride (CdTe) detector. METHODS: A body phantom and tumor phantoms (diameter 5-20 mm) made of water, agarose gel or epoxy with a density and attenuation coefficient similar to those of soft tissue were used to simulate a clinical situation. The activity concentration in the body phantom was based on reported values of 111In-octreotide in normal tissue in humans. The 111In activity concentration in the tumor phantoms varied from 3 to 80 times the 111In activity concentration in the body phantom. Data were processed to determine tumor detection levels. RESULTS: The NaI(TI) detector showed the lowest values for full width at half maximum because this detector had the best collimation, leading to a high ratio between counts from tumor and counts from background, i.e., small tumors could be detected. Because of high efficiency, the CsI(TI) detector sometimes required a somewhat shorter acquisition time to produce a statistically significant difference between tumor phantom and background. For deep-lying tumors the NaI(TI) detector was superior, whereas the CdTe detector was best suited for superficial tumors with a high activity concentration in the underlying tissue. CONCLUSION: At a maximum acquisition time of 30 s, almost all superficial tumors with a diameter of 10 mm or larger were detected if the ratio between the 111In concentration in the tumor and the 111In concentration in the background exceeded 3. However, in clinical situations, biologic variations in the uptake of 111In-octreotide in tumors and in normal tissue makes difficult the determination of a distinct detection level. For such clinical conditions, the NaI(TI) detector is the best choice because it has good resolution despite a lower efficiency. Documentation of detector characteristics is important so that clinicians can make an adequate device in relation to tumor location and receptor expression.  (+info)

A new Klebsiella planticola strain (Cd-1) grows anaerobically at high cadmium concentrations and precipitates cadmium sulfide. (3/228)

Heavy metal resistance by bacteria is a topic of much importance to the bioremediation of contaminated soils and sediments. We report here the isolation of a highly cadmium-resistant Klebsiella planticola strain, Cd-1, from reducing salt marsh sediments. The strain grows in up to 15 mM CdCl(2) under a wide range of NaCl concentrations and at acidic or neutral pH. In growth medium amended with thiosulfate, it precipitated significant amounts of cadmium sulfide (CdS), as confirmed by x-absorption spectroscopy. In comparison with various other strains tested, Cd-1 is superior for precipitating CdS in cultures containing thiosulfate. Thus, our results suggest that Cd-1 is a good candidate for the accelerated bioremediation of systems contaminated by high levels of cadmium.  (+info)

Azuki bean cells are hypersensitive to cadmium and do not synthesize phytochelatins. (4/228)

Suspension-cultured cells of azuki bean (Vigna angularis) as well as the original root tissues were hypersensitive to Cd (<10 microM). Repeated subculturings with a sublethal level of Cd (1-10 microM) did not affect the subsequent response of cells to inhibitory levels of Cd (10-100 microM). The azuki bean cells challenged to Cd did not contain phytochelatin (PC) peptides, unlike tomato (Lycopersicon esculentum) cells that have a substantial tolerance to Cd (>100 microM). Both of the cell suspensions contained a similar level of reduced glutathione (GSH) when grown in the absence of Cd. Externally applied GSH to azuki bean cells recovered neither Cd tolerance nor PC synthesis of the cells. Furthermore, enzyme assays in vitro revealed that the protein extracts of azuki bean cells had no activity converting GSH to PCs, unlike tomato. These results suggest that azuki bean cells are lacking in the PC synthase activity per se, hence being Cd hypersensitive. We concluded that the PC synthase has an important role in Cd tolerance of suspension-cultured cells.  (+info)

Metabolic engineering of an aerobic sulfate reduction pathway and its application to precipitation of cadmium on the cell surface. (5/228)

The conversion of sulfate to an excess of free sulfide requires stringent reductive conditions. Dissimilatory sulfate reduction is used in nature by sulfate-reducing bacteria for respiration and results in the conversion of sulfate to sulfide. However, this dissimilatory sulfate reduction pathway is inhibited by oxygen and is thus limited to anaerobic environments. As an alternative, we have metabolically engineered a novel aerobic sulfate reduction pathway for the secretion of sulfides. The assimilatory sulfate reduction pathway was redirected to overproduce cysteine, and excess cysteine was converted to sulfide by cysteine desulfhydrase. As a potential application for this pathway, a bacterium was engineered with this pathway and was used to aerobically precipitate cadmium as cadmium sulfide, which was deposited on the cell surface. To maximize sulfide production and cadmium precipitation, the production of cysteine desulfhydrase was modulated to achieve an optimal balance between the production and degradation of cysteine.  (+info)

Structure and dynamics of hnRNP-labelled nuclear bodies induced by stress treatments. (6/228)

We have previously described HAP, a novel hnRNP protein that is identical both to SAF-B, a component of the nuclear scaffold, and to HET, a transcriptional regulator of the gene for heat shock protein 27. After heat shock, HAP is recruited to a few nuclear bodies. Here we report the characterisation of these bodies, which are distinct from other nuclear components such as coiled bodies and speckles. The formation of HAP bodies is part of a general cell response to stress agents, such as heat shock and cadmium sulfate, which also affect the distribution of hnRNP protein M. Electron microscopy demonstrates that in untreated cells, similar to other hnRNP proteins, HAP is associated to perichromatin fibrils. Instead, in heat shocked cells the protein is preferentially associated to clusters of perichromatin granules, which correspond to the HAP bodies observed in confocal microscopy. Inside such clusters, perichromatin granules eventually merge into a highly packaged 'core'. HAP and hnRNP M mark different districts of these structures. HAP is associated to perichromatin granules surrounding the core, while hnRNP M is mostly detected within the core. BrU incorporation experiments demonstrate that no transcription occurs within the stress-induced clusters of perichromatin granules, which are depots for RNAs synthesised both before and after heat shock.  (+info)

The NADPH oxidase inhibitors iodonium diphenyl and cadmium sulphate inhibit hypoxic pulmonary vasoconstriction in isolated rat pulmonary arteries. (7/228)

Interest surrounds the role of an NADPH oxidase-like enzyme in hypoxic pulmonary vasoconstriction (HPV). We have studied the effects of the NADPH oxidase inhibitors iodonium diphenyl (ID) and cadmium sulphate (CdSO4) upon HPV of isolated rat pulmonary arteries (n = 73, internal diameter 545 +/- 23 microm). Vessels were preconstricted with prostaglandin F2alpha (PGF2alpha, 0.5 or 5 microM) prior to a hypoxic challenge. ID (10 or 50 microM), CdSO4 (100 microM) or vehicle (50 microl) was added for 30 min before re-exposure to PGF2alpha and hypoxia. ID and CdSO4 significantly inhibited HPV. In vessels preconstricted with 5 microM PGF2alpha, ID (10 and 50 microM) reduced HPV from 37.4 +/- 5.6 % to 9.67 +/- 4.4 % of the contractile response elicited by 80 mM KCl (P<0.05) and from 30.1 +/- 5.0 % to 0.63 +/- 0.6% 80 mM KCl response (P<0.01), respectively. CdSO4 (100 microM) reduced HPV from 29.4 +/-4.0 % to 17.1 +/- 2.2% 80 mM KCl response (P<0.05). In vessels preconstricted with 0.5 microM PGF2alpha, ID (10 and 50 microM) reduced HPV from 16.0 +/- 3.15% to 3.36 +/- 1.44 % 80 mM KCl response (P<0.01) and from 15.0 +/- 1.67 % to 2.82 +/- 1.40 % 80 mM KCl response (P<0.001), respectively. Constriction to PGF2alpha was potentiated by ID. ID and CdSO4, at concentrations previously shown to inhibit neutrophil NADPH oxidase, attenuate HPV in isolated rat pulmonary arteries. This suggests that an NADPH oxidase-like enzyme is involved in HPV and could act as the pulmonary oxygen sensor.  (+info)

Colloidal nanocrystal shape and size control: the case of cobalt. (8/228)

We show that a relatively simple approach for controlling the colloidal synthesis of anisotropic cadmium selenide semiconductor nanorods can be extended to the size-controlled preparation of magnetic cobalt nanorods as well as spherically shaped nanocrystals. This approach helps define a minimum feature set needed to separately control the sizes and shapes of nanocrystals. The resulting cobalt nanocrystals produce interesting two- and three-dimensional superstructures, including ribbons of nanorods.  (+info)

Methods are generally provided of sputtering a cadmium sulfide layer on a substrate. The cadmium sulfide layer can be sputtered on a substrate from a target in a sputtering atmosphere, wherein the target comprises about 75% to about 100% by weight cadmium, and wherein the sputtering atmosphere comprises a sulfur-containing source gas. The cadmium sulfide layer can be used in methods of forming cadmium telluride thin film photovoltaic devices.
The CdSe quantum dots (QDs) with bidentate ligands: a-diimine (NN) and dihydrolipoic acid (DHLA) were synthesized and characterized by UV-Vis, particle size and capillary electrophoretic techniques. Two systems were analyzed: CdSe with one ligand (CdSe/ligand) and CdSe with two different ligands (CdSe//ligand1/ligand2), where ligand = α-diimine or DHLA. Hydrodynamic features of functionalized QDs were characterized by zone capillary electrophoretic (CZE), and particle size techniques and these methods were consistent. It was established that CZE, micellar (MEKC) and microemulsion (MEEKC) modes were suitable for separating charged CdSe QDs and that no peaks were obtained for QDs passivated with electrically neutral ligands. For CdSe QDs with neutral (NN) ligands, a preconcentration method with the use of a micellar plug was introduced for visualizing these QDs. A sharp peak representing neutral QDs was obtained within the zone of micellar plug of a non-ionic surfactant, Here, a ligand character ...
Cadmium Sulphide (CdS) nanoparticles were prepared using microemulsion method using cadmium chloride as cadmium source and sodium sulphide as sulphur source. The obtained nanoparticles structures were characterized by X-ray diffraction (XRD) and Transmission Electron Microscopy (TEM) whereas optical characterization was done by Ultra Violet-Visible absorption. XRD result shows that CdS nanoparticles of hexagonal phase are formed. The TEM result indicates that the synthesized CdS nanoparticles are of variable morphology like spherical, cylindrical, nanorods and nanoneedles. Histograms help to evaluate size and aspect ratio of nanoparticles. UV-Visible spectroscopy reveals that as prepared CdS nanoparticles show a quantum confinement effect with shift in band gap. It is also found that water to surfactant molar ratio (wo) and co-surfactant are vital factors in the morphology and optical properties of CdS nanoparticles.
TY - JOUR. T1 - Synthesis of TiO2/CdS nanocomposite via TiO2 coating on CdS nanoparticles by compartmentalized hydrolysis of Ti alkoxide. AU - Fujii, H.. AU - Inata, K.. AU - Ohtaki, Michitaka. AU - Eguchi, K.. AU - Arai, H.. PY - 2001/1/1. Y1 - 2001/1/1. N2 - Hydrolysis of Ti alkoxide in the presence of inverse micelles containing CdS nanoparticles in their hydrophilic interior results in formation of TiO2/CdS nanocomposites in which the CdS nanoparticles are embedded in a TiO2 matrix with a thickness of ≤10 nm at the surface of the particles. The primary hydroxyl groups introduced by 2-mercaptoethanol as a capping agent used for preparation of the CdS nanoparticles are considered to play an important role for successful adhesion and growth of the TiO2 layer on the CdS surfaces. TEM observation strongly supports formation of semiconductor-in-semiconductor heteronanostructure by compartmentalized hydrolysis of Ti alkoxide within the inverse micelles in which the surface-capped CdS ...
We have synthesized and characterized CdS nanoparticles incorporated into the voids of opal crystal. This is the first time of AFM observation of pure and CdS doped opal crystal. It is shown, the size of CdS nanoparticle, which getting from AFM observation of CdS doped opal, is varied 70-90 nm. It is the contradiction of the results of Raman spectra of the CdS-opal sample, from what the frequency vibrations of this sample are corresponded to the size of the Cds nanoparticles 10-30 nm. The additional experiment - the high resolution SEM observation had shown - the size of CdS nanoparticles is 10-30 nm. By analysis of this results, we consider during the AFM scanning the tip removes some part of the CdS (may be some boundary between CdS nanoparticles with 10-30 nm sizes). It is well-known sweeping process. It has proposed, during the AFM tip scanning of the CdS-opal surface, that the measurement of the bonding force from the force cuver, can give us the order of the bonding force of some units ...
Creative Diagnostics provides DiagNano™ CdSe Quantum Dots, 600 nm for immunoassay, bioseparation and medical imaging applications.
Organic-inorganic hybrid perovskites have recently attracted considerable interest for application in solar cells due to their low cost, high absorption coefficient and high power conversion efficiency (PCE). Herein, we utilize a CdSe quantum dot/PCBM composite as an electron transport layer (ETL) to investi
Page contains details about CdSe quantum dots . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
Page contains details about ZnO-graphene core-shell quantum dots film on FTO glass . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
Potential routes of nanomaterial exposure include inhalation, dermal contact, and ingestion. Toxicology of inhalation of ultra-fine particles has been extensively studied; however, risks of nanomaterial exposure via ingestion are currently almost unknown. Using enterocyte-like Caco-2 cells as a small intestine epithelial model, the possible toxicity of CdSe quantum dot (QD) exposure via ingestion was investigated. Effect of simulated gastric fluid treatment on CdSe QD cytotoxicity was also studied. Commercially available CdSe QDs, which have a ZnS shell and poly-ethylene glycol (PEG) coating, and in-house prepared surfactant coated CdSe QDs were dosed to Caco-2 cells. Cell viability and attachment were studied after 24 hours of incubation. It was found that cytotoxicity of CdSe QDs was modulated by surface coating, as PEG coated CdSe QDs had less of an effect on Caco-2 cell viability and attachment. Acid treatment increased the toxicity of PEG coated QDs, most likely due to damage or removal of the
In this work, CdS/TiO2 nanotubes composite nanofilms were successfully synthesized via electrodeposition technique. TiO2 titania nanotube arrays (NTAs) are commonly used in photoelectrochemical cells as the photoelectrode due to their high surface area, excellent charge transfer between interfaces and fewer interfacial grain boundaries. The anodization technique of titanium foil was used to prepare TiO2 NTAs photoelectrode. The concentration of CdCl2 played an important role in the formation of CdS nanoparticles. Field emission scanning electron microscopy (FESEM) shows that the CdS nanoparticles were well deposited onto the outer and inner of nanotube at 40 mM of CdCl2. X-ray diffraction (XRD) and energy dispersive X-ray (EDX) analyses were executed for the determination of the composition and crystalline structure of the synthesized samples. Furthermore, the data of EDX confirms the formation of titanium and oxygen for TiO2 nanotubes and cadmium and sulfide for CdS deposits. UV-visible diffuse ...
In order to detect low level glucose concentration, an electrochemiluminescence (ECL) biosensor based on TGA-capped CdSe quantum dots (QDs) was fabricated by the immobilization of CdSe QDs after modifying the surface of a glassy carbon electrode (GCE) with 4-aminothiophenol diazonium salts by the electrochemical method. For the detection of glucose concentration,|i| glucose oxidase|/i| (GOD) was immobilized onto the fabricated CdSe QDs-modified electrode. The fabricated ECL biosensor based on TGA-capped CdSe QDs was characterized using a scanning electron microscope (SEM), UV-vis spectrophotometry, transmission electron microscopy (TEM), a fluorescence spectrometer (PL), and cyclic voltammetry (CV). The fabricated ECL biosensor based on TGA-capped CdSe QDs is suitable for the detection of glucose concentrations in real human blood samples.
Cadmium Sulfide is a medicine available in a number of countries worldwide. A list of US medications equivalent to Cadmium Sulfide is available on the Drugs.com website.
Since cadmium compounds are often found in association with zinc ores, cadmium oxide is a common by-product of zinc refining.[15] It is produced by burning elemental cadmium in air. Pyrolysis of other cadmium compounds, such as the nitrate or the carbonate, also affords this oxide. When pure, it is red, but CdO is unusual in being available in many differing colours due to its tendency to form defect structures resulting from anion vacancies.[16] Cadmium oxide is prepared commercially by oxidizing cadmium vapor in air.[17] ...
|p|We first focus on the kinetics of nanoparticle growth in a microemulsion synthesis of CdSe semiconductor nanocrystals. The process consists of a fast initial stage of typical time constant of the order of 103 s followed by a slow stage of time constant of the order of 104s. Growth proceeds similarly to that described for the hot-matrix synthesis of CdSe, underlining the generality of the two-stage growth mechanism, irrespective of the matrix type and synthesis conditions. However, the time constant of each stage in the microemulsion synthesis is much larger than in the hot-matrix one. Also, the ratio between the fast and slow time constant is appreciably bigger. We also prove that larger size reverse micelles, obtained by increasing the water:surfactant ratio, generally lead to larger CdSe nanoparticles. Bis(trimethylsilyl) selenium is the crucial precursor for the CdSe nanoparticle synthesis. An intermediate stage of the chemical reaction limiting the bis(trimethylsilyl)
A laser operated nanocomposites for linear electrooptics modulators based on cadmium sulfide (CdS) nanoparticles synthesized by electrochemical anodizing method in the polyvinyl alcohol (PVA) solvent are realized. The basic components are CdS nanoparticles. The XRD data confirm that the wurtzite component content was varied within the 10 % to 27%. Varying PVA solvent the average sizes have been changed. The synthesized powders consist of nano-sized particles with sizes varying within 11 nm…14.5 nm. It is demonstrated an influence of PVA content on the grain sizes. The diameter of particles of CdS is enhanced with an increasing PVA content. The PVA causes a significant increase in the size of the particles. The photoinduced electrooptics has been performed using as a photoinducing 120 fs femtosecond laser at 1045 nm. The linear electrooptics was probed by He-Ne cw laser at 1150 nm. A correlation between the content of wurtzite CdS component and the output electrooptics is found. The maximal ...
The structure of the amino modified CdSe/ZnS core-shell QD (a) and the size distribution of the QDs (b) in the aqueous environment of living cells. The averaged
The unique characteristics of engineered nanomaterials have received enormous attention for their potential applications in biology and medicine. Quantum dots (QDs), in particular, with their bright, photostable and size tunable fluorescence have shown great promise as alternatives to organic dyes for biological imaging. A key issue in evaluating their utility is assessing their potential toxicity, which however is not fully understood. In order to address problems associated with QDs manufacturing and to assess their immunotoxicity, we evaluated recently synthesized CdSe/ZnS core/shell QDs with a tri-n-octylphosphine oxide, poly(maleic anhydride-alt-1-tetradecene) (TOPO-PMAT) coating. In this study, we investigated the potential pro-inflammatory response that these nanoparticles might elicit and the signaling pathways that regulate such events. We measured the gene expression of pro-inflammatory cytokines/chemokines in mouse macrophages. The mRNA transcription of a list of pro-inflammatory ...
Fluorescent labeling reagents are used as diagnosis and research reagents that label specific protein, antigen, antibody, and DNA. However, the chromophoric groups are not stable under long-time Ultra Violet (UV) excitation measurement condition. Nanometer-sized semiconductor particles (for example, CdS or CdSe nanometer-sized particles) provide high intensity fluorescence with durability under long-time UV irradiation. However, the CdSe particles are usually insoluble to water. We prepared terpolymers which consist of water-soluble and hydrophobic parts, and functional group for antibody binding site. Water-soluble part in the polymers is composed of N-isopropylacrylamide. Hydrophobic part for anchoring to CdSe nanoparticles coated with hydrophobic stabilizing reagents and oleic acid is prepared by copolymerization of oleic acid (Ole) as a monomer. The terpolymers were prepared by radical polymerization of Nipam, Ole, and acrylic acid and their structures were confirmed by IR and NMR spectroscopic
Cation exchange occurs via defect initiated solid-state diffusion, a process that can lead to defect formations. The effect of such inherent defect formation on carrier dynamics of cation-exchanged heterostructures remains poorly understood. Herein, we report exciton dynamics in type II CdSe/PbSe heterostructure nanorods formed via cation exchange. The majority of electrons in CdSe domains decays in 5 ps due to ultrafast carrier trapping. The defect generated by cation exchange can be healed by annealing the as-synthesized CdSe/PbSe heterostructure nanorods. This study suggests a strategy for improving properties of heteronanostructures prepared by cation exchange for applications in photovoltaics and photocatalysis ...
Global Nanocrystal Glass Market is a comprehensive research that provides information regarding Nanocrystal Glass market size, trends, growth, cost structure, capacity, revenue and forecast 2025. This report also includes the overall study of the Nanocrystal Glass Market share with all its aspects influencing the growth of the market. This report is exhaustive quantitative analyses of the Nanocrystal Glass industry and provides data for making strategies to increase Nanocrystal Glass market growth and effectiveness.. Get a sample copy of the report at - https://www.industryresearch.biz/enquiry/request-sample/15403594. The Global Nanocrystal Glass market 2020 research provides a basic overview of the industry including definitions, classifications, applications and industry chain structure. The Global Nanocrystal Glass market report is provided for the international markets as well as development trends, competitive landscape analysis, and key regions development status. Development policies ...
A method for preparing CdS nanoparticles within the porous confines of a mesoporous starch gel is described. This method utilises the combined colloidal and flexible chemical nature of a porous polysaccharide (i.e. starch) gel to limit CdS growth. The resulting hybrid gels can be dried to produce CdS/starch materials with high surface areas, predominantly mesoporous characteristics and scope for high CdS loading. The synthesis is conducted in aqueous alcoholic solutions without the need for expensive preparation techniques or additional protection/templating strategies. Materials were prepared at increasing CdS loadings on the starch gel, which confined nanoparticle growth and directed size/surface coverage, dispersion and UV-vis absorption profile. The resulting powders presented large mesopore domains with high volumes (pore diameters,10nm; Vmeso,0.5cm3g-1) and surface areas (SBET,170m2g-1), interestingly effectively increasing with CdS loading. The synthesised CdS nanoparticles were ...
Our initial goal was to clone the nucleotide sequences of three small peptides, A7 (N-SLTPLTTSHLRS-C), Z8 (N-VISNHAESSRRL-C), and J140 ((N-TGCAACAACCCGATGCACCAGAACTGC-C) ,which have been previously reported in Mao, et. al. to nucleate zinc sulfide (A7 and Z8 peptides) and cadmium sulfide (J140 peptide) to form quantum dot containing nano-wires using phage display.. Since all of the QD nucleating peptides were small sequences of 70 base pairs or less, we opted to generate the inserts using an oligonucleotide annealing procedure (see protocols) using designed oligos ordered from IDT. These were to be then cloned into the BioBrick vector PSB13C. Also, the sequence of the small peptide CDS7 (N-GDVHHHGRHGAEHADI-C), which previously demonstrated by Mi, et. al. to nucleate the formation of cadmium sulfide containing QDs, was synthesized by Invitrogen in a pANY vector and then amplified from the construct using primers containing either Biobrick ends conforming to RFC23 Silver lab standard or BamHI and ...
Our initial goal was to clone the nucleotide sequences of three small peptides, A7 (N-SLTPLTTSHLRS-C), Z8 (N-VISNHAESSRRL-C), and J140 ((N-TGCAACAACCCGATGCACCAGAACTGC-C) ,which have been previously reported in Mao, et. al. to nucleate zinc sulfide (A7 and Z8 peptides) and cadmium sulfide (J140 peptide) to form quantum dot containing nano-wires using phage display.. Since all of the QD nucleating peptides were small sequences of 70 base pairs or less, we opted to generate the inserts using an oligonucleotide annealing procedure (see protocols) using designed oligos ordered from IDT. These were to be then cloned into the BioBrick vector PSB13C. Also, the sequence of the small peptide CDS7 (N-GDVHHHGRHGAEHADI-C), which previously demonstrated by Mi, et. al. to nucleate the formation of cadmium sulfide containing QDs, was synthesized by Invitrogen in a pANY vector and then amplified from the construct using primers containing either Biobrick ends conforming to RFC23 Silver lab standard or BamHI and ...
Use * or ? to search for alternate forms of a word. Use * to stand for several characters, and ? for a single character: e.g. optim* will find optimal, optimize or optimum; wom?n will find woman and women. ...
Zusammenfassung CdS-Nanoteilchen mit Größen zwischen 1.1 und 4.2 nm wurden in Äthanol und mit Thioglycerol (TG)-Hülle synthetisiert. Es wurde gezeigt, dass die nass-chemische Synthese ohne Wasser und die Verwendung von TG als Hülle folgende Vorteile bieten: Es konnten kleinere Teilchen hergestellt und eine schmalere Größenverteilung erzielt werden. Zusätzlich wird dem Altern der Teilchen vorgebeugt, und die Ergebnisse sind besser reproduzierbar. Hochaufgelöste Photoemissions-Messungen an kleinen CdS-Teilchen (1.1, 1.4, 1.7, 1.8; 1.8 nm mit Glutathion-Hülle) ergaben Beiträge von fünf verschiedenen Schwefelatom-Typen zum S 2p-Gesamt Signal. Außerdem wurde beobachtet, dass Nanoteilchen unterschiedlicher Größe und/oder mit unterschiedlichen Hüllen-Substanzen verschiedene Photoemissionsspektren zeigen und verschieden starke Strahlenschäden aufweisen. Bei den 1.4 nm großen CdS-Teilchen entsprechen die Komponenten des S 2p-Signals entweder Schwefelatomen mit unterschiedlichen Cd-Nachbarn,
This list contains a non-exhaustive inventory of substances taken from: (1) Table 3 of Annex VI to CLP; (2) the Candidate List of SVHCs; (3) Annex XIV of REACH (Authorisation List); (4) Annex XVII of REACH (Restrictions List); (5) F-gases subject to emission limits/reporting per Regulation 517/2014/EU; and (6) volatile organic compounds (VOCs) listed in the Ambient Air Directive 2008/50/EC. The basis of the list is Annex I(3) of the Construction Products Regulation 305/2011/EC, which stipulates that construction works must not have a high impact on human health or the environment as a result of: giving off toxic gas; emissions of dangerous substances, volatile organic compounds (VOC), greenhouse gases or dangerous particles into indoor or outdoor air; release of dangerous substances into drinking water, ground water, marine waters, surface waters or soil.. ...
This database contains the ADNs Dangerous Goods List, as implemented by the EUs Directive 2008/68/EC. This Directive establishes rules for the safe transport of dangerous goods between EU countries by road, rail, and waterway. It applies the European Agreements on the international transport of dangerous goods by road (ADR) and inland waterways (ADN), and the Regulations concerning the international carriage of dangerous goods by rail (RID).. ...
Distribution of Selected Radiochemical and Chemical Constituents in Perched Ground Water, etc., U.S. Geological Survey, Water-Resources Investigations Report 00-4222, October ...
This database contains the ADNs Dangerous Goods List, as implemented by the EUs Directive 2008/68/EC. This Directive establishes rules for the safe transport of dangerous goods between EU countries by road, rail, and waterway. It applies the European Agreements on the international transport of dangerous goods by road (ADR) and inland waterways (ADN), and the Regulations concerning the international carriage of dangerous goods by rail (RID).. ...
Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):. ...
Characterization of nanocrystals is crucial for the development of many chemical methods based on this technology. For this, there are several techniques, mainly microscopic, and recently capillary electrophoretic techniques, that have been proposed. In our laboratory, we examined several capillary electrophoretic methodologies: zone (CZE), micellar (MEKC), microemulsion (MEEKC), non-aqueous (NACE) and polymer based (CGE). For the separation of water soluble CdSe nanocrystals, CZE, MEKC and CGE were found to be suitable
read faserverbundwerkstoffe 1986 RAMAN STUDIES OF GROUND AND ELECTRONIC EXCITED STATES IN CdS NANOCRYSTALS, J. Alivisatos, Journal of Chemical Physics 98:8432. tendency AND vibrational PROPERTIES OF GaAs NANOCLUSTERS SEQUESTERED IN AMORPHOUS MATRICES, S. Underwood, Journal of Materials Synthesis and Processing 1:225. Risbud, Journal of Materials Research 8:1394.
Artists rendering of bioreactor (left) loaded with bacteria decorated with cadmium sulfide, light-absorbing nanocrystals (middle) to convert light, water and carbon dioxide into useful chemicals (right).
Dr. Belchers team uses the virus as a temporary scaffolding on which the crystals grow. The viruses are first altered by the insertion of a few amino acid chains, called peptides, so that they attract a particular material like zinc sulfide or cadmium sulfide. It is all a matter of affinity, molecular recognition and genetic programming, Dr. Belcher said. We programmed the virus to grow a particular material at a particular length, she said. Then we burned off the virus and were left with single-crystal semiconductor wires ...
In recent years, there has been a worldwide interest in the development of green technologies which enable the use of products with less environmental impact. There is an increasing focus in the use of raw materials ...
Zn chalcogenides are suitable candidates for blue-emitting fluorophores in light-emitting devices. In particular, the efforts to grow ZnSe nanocrystals (NCs) with fine control over size and shape via bottom-up approaches have faced challenges because of the slow decomposition of Zn precursors. In this study, 2019 Nanoscale HOT Article Collection
Combined Defence Services Examination(CDSE) is conducted by Union public Service commission (UPSC) . UPSC conducts two exam yearly. The CDS I exam will be held in the month of February and the CDS II will be held in AUG. CDSE exam consist of three parts namely General knowledge, English and Elementary mathematics. The questions are all objective type question and each paper will be give 2 hour for the exam. There is negative marking in this exam. Through this exam on can join the three armed forces (Army, Navy and Air-force). Two entry is possible with CDSE - IMA and OTA. For IMA one has write all the 3 papers , whereas for OTA only GK and English paper is enough ...
Lasing in submonolayer CdSe structures in a ZnSe matrix without external optical confinement. Krestnikov, I. L.; Ledentsov, N. N.; Maksimov, M. V.; Sakharov, A. V.; Ivanov, S. V.; Sorokin, S. V.; Tenishev, L. N.; Kop�ev, P. S.; Alferov, Zh. I. // Technical Physics Letters;Jan97, Vol. 23 Issue 1, p23 It is shown that in order to achieve lasing in structures with CdSe submonolayers inserted in a ZnSe matrix, no additional optical confinement of the active region using thick wide-gap layers is required. The high oscillator strength of the excitons trapped at CdSe islands modulates the... ...
Looking for cadmium telluride detector? Find out information about cadmium telluride detector. A photoconductive cell capable of operating continuously at ambient temperatures up to 750°F ; used in solar cells and infrared, nuclear-radiation, and... Explanation of cadmium telluride detector
Doping quantum dots to increase conductivity is a crucial step towards being able to fabricate a new generation of electronic devices built on the bottom-up platform that are smaller and more efficient than currently available. Indium, tin, and gallium have been used to dope CdSe in both the bulk and thin film regimes and introduce n-type electron donation to the conduction band. CdSe quantum dots have been successfully doped with indium, tin, and gallium using the Li4[Cd10Se4(SPh16)] single source precursor combined with metal chloride compounds. Doping CdSe quantum dots is shown to effect particle growth dynamics in the heterogeneous growth regime. Doping with indium, tin, and gallium introduce donor levels 280, 100, and 50 meV below the conduction band minimum, respectively. Thin films of indium and tin doped quantum dots show improved conductivity over films of undoped quantum dots. Transient Absorption spectroscopy indicates that indium doping introduces a new electron energy level in ...
In the last two decades, semiconductor quantum dots small colloidal nanoparticles have garnered a great deal of scientific interest because of their unique properties. Among nanomaterials, CdTe holds special technological importance as the only known II-VI material that can form conventional p-n junctions. This makes CdTe very important for the development of novel optoelectronic devices such as light-emitting diodes, solar cells, and lasers. Moreover, the demand for water-compatible light emitters and the most common biological buffers give CdTe quantum dots fields a veritable edge in biolabeling and bioimaging.
Polymer-encapsulated CdSe/CdS core-shell quantum dots, which closely model commercially-available quantum dots, were tested for toxic effects on Pseudomonas aeruginosa. The size, aggregation state, and dissolution of the quantum dots were characterised before and after exposure to bacteria. The physical association of quantum dots with bacterial cells was also examined. The quantum dots were found to have no effect upon bacterial viability. They remained chemically stable and dispersed in solution even with bacterial exposure. It is suggested that the absence of toxicity is the result of the stability of the quantum dots due to their protective polymer coatings, and their apparent lack of association with bacterial cells. The stability of the quantum dots, even in the presence of the bacteria, as well as their non-toxicity has implications for their environmental behaviour and ultimate fate.. ...
In this work, a novel three-dimensional cadmium telluride quantum dots-DNA nanoreticulation (3D CdTe QDs-DNA-NR) was used as a signal probe with the dual-legged DNA walker circular amplification as target conversion strategy to establish a pioneering electrochemiluminescence (ECL) biosensing strategy for ultrasensitive detection of microRNA-21 form cancer cells. Herein, such a
TY - JOUR. T1 - Energy transfer effect of hybrid organic rubrene nanorod with CdSe/ZnS quantum dots. T2 - Application to optical waveguiding modulators. AU - Moon, Woo Sung. AU - Cho, Eun Hei. AU - Lee, Ju Bok. AU - Jeon, Sumin. AU - Kim, Jeongyong. AU - Lee, Kwang Sup. AU - Joo, Jinsoo. PY - 2014/1/1. Y1 - 2014/1/1. N2 - Organic rubrene (5,6,11,12-tetraphenyltetracene) nanorods (NRs) were fabricated through the physical vapor transport method for the study of active fluorescence optical waveguiding and its modulation. The functionalized CdSe/ZnS quantum dots (QDs) with blue and green emissions were partially attached to the surface of the rubrene NR. Using a high resolution laser confocal microscope (LCM), the nanoscale photoluminescence (PL) intensity of the pristine rubrene portion of the hybrid NR/QDs was observed to be considerably enhanced after it was attached with blue (or green) QDs. The nanoscale optical waveguiding characteristics of the hybrid NR/QDs were investigated in terms of the ...
In optoelectronic devices based on quantum dot arrays, thin nanolayers of gold are preferred as stable metal contacts and for connecting recombination centers. The optimal morphology requirements are uniform arrays with precisely controlled positions and sizes over a large area with long range ordering since this strongly affects device performance. To understand the development of gold layer nanomorphology, the detailed mechanism of structure formation are probed with time-resolved grazing incidence small-angle X-ray scattering (GISAXS) during gold sputter deposition. Gold is sputtered on a CdSe quantum dot array with a characteristic quantum dot spacing of approximate to 7 nm. In the initial stages of gold nanostructure growth, a preferential deposition of gold on top of quantum dots occurs. Thus, the quantum dots act as nucleation sites for gold growth. In later stages, the gold nanoparticles surrounding the quantum dots undergo a coarsening to form a complete layer comprised of gold-dot ...
Article Photoinduced toxicity of CdSe/ZnS quantum dots with different surface coatings to Escherichia coli. Quantum dot (QD) nanoparticles are increasingly used for various biomedical applications. To increase their biocompatibility, QDs are frequent...
a) Cadmium telluride (CdTe) is a semiconductor witha band gap, Eg, of 1.45 eV. Calculate the value of the absorption edge of this material. Express your answer in meters. (b) Shown below are several % absorption vs. wavelength diagrams ...
Photoluminescence (PL) and Raman scattering spectra of none- and bio-conjugated CdSe/ZnS and CdSeTe/ZnS quantum dots (QDs) have been studied.
The present study reports the localization and interaction of thioglycolic acid (TGA) capped CdTe quantum dots ([email protected] QDs) within the extracellular matrix (ECM) of Haematococcus pluvialis (Chlorophyceae) microalgae (HPM) after an incubation period of 5 min. Changes in the Raman spectrum of HPM induced by the adsorption of the [email protected] QDs are successfully found by using naked gold anisotropic structures as nano-sensors for surface-enhanced Raman scattering (SERS effect). Raman spectroscopy results show that [email protected] QDs interact with the biomolecules present in the ECM. Sample preparation and characterization by complementary techniques such as confocal and electron microscopy are also used to confirm the presence and localization of the nanoparticles in the algae. This research shows new evidence on early accumulation of QDs in plant cells and would further improve our understanding about their environmental impact.. © 2016 The Author(s). PDF Article ...
The objective of my research work is to synthesize, characterize, design, and apply nanocrystals for biomedical use.; Gold nanoparticles were synthesized in the presence of chitosan via reduction of HAuCl4 with sodium borohydride. The average particle size of gold nanoparticles was significantly affected with the concentration of chitosan added and was ranged between 5 and 30 nm. The gold-chitosan nanocomposites were formed by adsorbing chitosan molecules on the gold nanoparticles.; CdSe/ZnS quantum dots were prepared by a solution phase synthetic method. A new route for the phase transfer of CdSe/ZnS quantum dots from non-polar solvents into aqueous solution was developed using hydrophobically modified polysaccharides, both chitosan and alginate. In addition, it was shown that CdSe/ZnS based polysaccharide nanoparticles effectively inhibited the proliferation of human ovarian cancer cell line SKOV-3 in vitro. The findings suggest that CdSe/ZnS quantum dot based polysaccharide nanoparticles not ...
Los Angeles, CA (PRWEB) May 28, 2008 -- Los Angeles-based American Elements announced the further expansion of its cadmium telluride production facilities to
Cadmium Telluride Quantum Dots CdTe bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. Term contracts & credit cards/PayPal accepted.
Optical techniques targeting biomarkers of cancer have the potential to aid in the early detection of this disease. Molecular and biochemical changes in neoplastic tissue could be interrogated, potentially providing an objective assessment and identification of suspect tissue. A method of interrogating such changes involves the development of optical based probes that provide a molecular-specific source of signal. This dissertation aims to develop an effective optical strategy to target the epidermal growth factor for in vivo detection. The optical probe design consists of an optically active component (quantum dot, fluorescent dye) and a molecular specific probe (antibody, peptide). The optically active components investigated were cadmium telluride quantum dots (QDs) and Alexa Fluor 647 dye. Epidermal growth factor receptor (EGFR) was chosen as a molecular target because it is over-expressed in a large number of epithelial cancers. Both peptides and antibody to EGFr were investigated as ...
As a multipotent tool for scientific exploration, semiconductor nanoparticles, or quantum dots (QDs), have gained enormous interest in nanoscience in the past two decades. The research presented here focused on cadmium telluride (CdTe) QDs: novel synthetic methodologies were used to prepare previously inaccessible nanomaterials based on CdTe QDs. -- CdTe/CdSe/ZnSe core/shell/shell QDs were prepared by a one-pot synthesis. The resulting QDs exhibited near infrared emission, were readily dispersed in aqueous media and applied to deep tissue imaging where emission through the skin indicated the gradual transition of the QDs via the lymphatic tract. -- Using a different synthetic approach, CdTe QDs, which were dispersed in organic media, were exposed to mercury cations in a toluene/methanol solution, resulting in CdHgTe nanoalloy formation. The optical characteristics of the resulting materials were substantially red-shifted from those of the original CdTe QDs. Structural changes were also examined ...
The organic layer of the CdS/ZnS or CdSe/ZnS quantum dots (QDs) with carboxylic acid as reactive group consist of a monolayer of oleic acid/octadecylamine and a monolayer of amphiphilic polymer. The total thickness of organic layers on these QDs is approximately 4 nm. They find many applications in bioimaging and biosensing... ...
Fly fishing trips in Telluride, Colorado are offered by Tellurides premier guide service, Telluride Outside. Since 1984, Telluride Outside has been widely recognized as the regions leading specialty fly fishing guide service, offering public and private water trips on the San Miguel River, Dolores River, Uncompahgre River and Gunnison River. Plan a guided fly fishing adventure with Tellurides fly fishing professionals.
Over the last decade, cadmium telluride (CdTe) and cadmium zinc telluride (CdZnTe) wide band gap semiconductors have attracted increasing interest as X-ray and gamma ray detectors. Among the traditional high performance spectrometers based on silicon (Si) and germanium (Ge), CdTe and CdZnTe detectors show high detection efficiency and good room temperature performance and are well suited for the development of compact and reliable detection systems. In this paper, we review the current status of research in the development of CdTe and CdZnTe detectors by a comprehensive survey on the material properties, the device characteristics, the different techniques for improving the overall detector performance and some major applications. Astrophysical and medical applications are discussed, pointing out the ongoing Italian research activities on the development of these detectors.
Ga-doped CdTe polycrystalline thin films were successfully electrodeposited on glass/fluorine doped tin oxide (FTO) substrates from aqueous electrolytes containing cadmium nitrate (Cd(NO3)2⸱4H2O) and tellurium oxide (TeO2). The effects of different Ga-doping concentrations on the CdTe:Ga coupled with different post-growth treatments were studied by analysing the structural, optical, morphological and electronic properties of the deposited layers using X-ray diffraction (XRD), ultraviolet-visible spectrophotometry, scanning electron microscopy, photoelectrochemical cell measurement and direct-current conductivity test respectively. XRD results show diminishing (111)C CdTe peak above 20 ppm Ga-doping and appearance of (301)M GaTe diffraction above 50 ppm Ga-doping indicating the formation of two phases; CdTe and GaTe . Although, reductions in the absorption edge slopes were observed above 20 ppm Ga-doping for the as-deposited CdTe:Ga layer, no obvious influence on the energy gap of CdTe films ...
A semiconductor nanocrystal compound and probe are described. The compound is capable of linking to one or more affinity molecules. The compound comprises (1) one or more semiconductor nanocrystals capable of, in response to exposure to a first energy, providing a second energy, and (2) one or more linking agents, having a first portion linked to the one or more semiconductor nanocrystals and a second portion capable of linking to one or more affinity molecules. One or more semiconductor nanocrystal compounds are linked to one or more affinity molecules to form a semiconductor nanocrystal probe capable of bonding with one or more detectable substances in a material being analyzed, and capable of, in response to exposure to a first energy, providing a second energy. Also described are processes for respectively: making the semiconductor nanocrystal compound; making the semiconductor nanocrystal probe; and treating materials with the probe.
A semiconductor nanocrystal compound and probe are described. The compound is capable of linking to one or more affinity molecules. The compound comprises (1) one or more semiconductor nanocrystals capable of, in response to exposure to a first energy, providing a second energy, and (2) one or more linking agents, having a first portion linked to the one or more semiconductor nanocrystals and a second portion capable of linking to one or more affinity molecules. One or more semiconductor nanocrystal compounds are linked to one or more affinity molecules to form a semiconductor nanocrystal probe capable of bonding with one or more detectable substances in a material being analyzed, and capable of, in response to exposure to a first energy, providing a second energy. Also described are processes for respectively: making the semiconductor nanocrystal compound; making the semiconductor nanocrystal probe; and treating materials with the probe.
ZnS and CdS nanoparticles were prepared by a simple microwave irradiation method under mild conditions. The obtained nanoparticles were characterized by XRD, TEM and EDX. The results indicated that high purity of nanosized ZnS and CdS was successfully obtained with cubic and hexagonal crystalline structures, respectively. The band gap energies of ZnS and CdS nanoparticles were estimated using UV-visible absorption spectra to be about 4.22 and 2.64 eV, respectively. Photocatalytic degradation of methylene blue was carried out using physical mixtures of ZnS and CdS nanoparticles under a 500-W halogen lamp of visible light irradiation. The residual concentration of methylene blue solution was monitored using UV-visible absorption spectrometry. From the study of the variation in composition of ZnS:CdS, a composition of 1:4 (by weight) was found to be very efficient for degradation of methylene blue. In this case the degradation efficiency of the photocatalyst nanoparticles after 6 h irradiation time was
The oxidative coupling of sp3 hybridized carbon atoms by photocatalysis is a valuable synthetic method as stoichiometric oxidation reagents can be avoided and dihydrogen is the only byproduct of the reaction. Cadmium sulfide, a readily available semiconductor, was used as a visible light heterogeneous photocatalyst for the oxidative coupling of benzyl alcohols and benzyl amines by irradiation with blue light. Depending on the structure of the starting material, good to excellent yields of homocoupling products were obtained as mixtures of diastereomers. Cross-coupling between benzyl alcohols and benzyl amines gave product mixtures, but was selective for the coupling of tetrahydroisoquinolines to nitromethane. The results demonstrate that CdS is a suitable visible light photocatalyst for oxidative bond formation under anaerobic conditions. ...
With the development of science and technology, new applications about nanoparticles should be explored to achieve full-scale knowledge. Therefore, in this work, the toxicity and potential application of raw cadmium sulfide nanoparticles (CdS) in vivo were further studied through ICP-OES and CTs. Surprisingly, CdS exhibited an excellent photographic property, except for finding the accumulation of CdS in the lungs, liver, spleen, and kidney with a strong dependence on time; it is also found that there were a significant uptake in the pancreas for an obvious CT imaging. And the following investigations showed that the raw CdS could damage the tissues accumulating nanoparticles. Through this work, it can be seen that the raw CdS being modified might be an excellent photographic developer for detecting cancers or other diseases.
TY - JOUR. T1 - Methotrexate-conjugated AgInS2/ZnS quantum dots for optical imaging and drug delivery. AU - Wu, Pei Jung. AU - Ou, Keng Liang. AU - Chen, Jem Kun. AU - Fang, Hsiao Ping. AU - Tzing, Shin Hwa. AU - Lin, Wei Xiang. AU - Chang, Jia Yaw. PY - 2014/8/1. Y1 - 2014/8/1. N2 - The ability to conjugate drugs with quantum dots (QDs) offers excellent prospects in pharmacotherapy for the improvement of diagnosis and treatment of human diseases. Here, we report a facile strategy to prepare dual-functional nanomaterials consisting of QDs and an anticancer drug. Hydrophilic AgInS 2/ZnS QDs were obtained through an ultrasonication process by introducing the amphiphilic polymer, poly(maleic anhydride-alt-1-octadecene) (PMAO). Subsequently, the anticancer drug methotrexate (MTX) was covalently coupled to the surface of the AgInS2/ZnS QDs by carbodiimide chemistry. The MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] cell proliferation assay indicated that these hydrophilic ...
Cadmium selenide is a semi-conductor with interesting optical and photoconductive pro-perties in the red part of the spectrum. This paper is concerned mainly with the measure-ment of a number of the optical properties of cadmium selenide in which pure single crystals grown by sublimation in atmospheres of inert gas were used. Thin plates of CdSe less than 1 μ thick were obtained, and these are transparent right down to short wavelengths in the region of 4500Å. At liquid-helium temperatures, sharp absorption bands may be observed in the visible part of the spectrum, both in the red part near the absorption edge, and in the green part. From the position of these bands and the shape of the absorption curves, in- formation has been obtained concerning the band structure. Two levels occur near the top of the valence band with a small energy separation (ca. 0.026eV) and these are connected with crystal field splitting. The energy separation of the deeper levels is ca. 0.41 eV and these levels are ...
TY - JOUR. T1 - Metal-insulator transition in films of doped semiconductor nanocrystals. AU - Chen, Ting. AU - Reich, K. V.. AU - Kramer, Nicolaas J.. AU - Fu, Han. AU - Kortshagen, Uwe R.. AU - Shklovskii, B. I.. PY - 2016/3/1. Y1 - 2016/3/1. N2 - To fully deploy the potential of semiconductor nanocrystal films as low-cost electronic materials, a better understanding of the amount of dopants required to make their conductivity metallic is needed. In bulk semiconductors, the critical concentration of electrons at the metal-insulator transition is described by the Mott criterion. Here, we theoretically derive the critical concentration nc for films of heavily doped nanocrystals devoid of ligands at their surface and in direct contact with each other. In the accompanying experiments, we investigate the conduction mechanism in films of phosphorus-doped, ligand-free silicon nanocrystals. At the largest electron concentration achieved in our samples, which is half the predicted nc, we find that the ...
Size-Controlled Synthesis and Characterization of CdS, ZnS Quantum Dots and their Core/Shell Structures for Bio Based Applications - written by Hitanshu Kumar, P. B. Barman And Ragini Raj Singh published on 2018/07/30 download full article with reference data and citations
The list of classical tellurides with organic cations was expanded by the synthesis of single‐crystalline salts [Li2(en)n](Tex) (en = ethylenediamine) with n = 4, x = 1 (1), n = 4, x = 2 (2), and n = 5, x = 3 (3), [K(18c6)]2(Tex) (18c6 = 1, 4,7, 10, 13, 16‐hexaoxacycloocta‐decane) with x = 2 (4), 4 (5), [K(18c6)]2[K(en)]2(Te2)2 (6), and [K([2.2.2]crypt)]2(Te2) (7) ([2.2.2]crypt = 4, 7,13, 16, 21, 24‐hexaoxa‐1, 10‐diazabicyclo[8.8.8]‐hexacosane). Electronic structure calculations on free molecules and periodic approaches are discussed and compared with experimental UV/Vis spectra, providing a correlation of the bandgaps with the telluride chain length, and a possibility for affecting the gap by according choice of the counterions. Additionally, 125Te NMR chemical shifts of the presented series of en solvated lithium tellurides are presented. ...
Alfa Aesar™ Bismuth(III) telluride, Vacuum Deposition Grade, 99.999% (metals basis) 50g Alfa Aesar™ Bismuth(III) telluride, Vacuum Deposition...
Find Kia Telluride mpg in various conditions to know fuel economy. 2021 Kia Telluride gas mileage in mpg is reviewed with rivals, specs & features.
Tan HW, Xu YM, Wu DD, Lau AT. Recent insights into human bronchial proteomics - how are we progressing and what is next? Expert review of proteomics . 2017. doi: 10.1080/14789450.2017.1417847. PubMed PMID: 29260600.. • Huang SJ, Xu YM, Lau AT. Electronic cigarette: A recent update of its toxic effects on humans. J Cell Physiol. 2017. doi: 10.1002/jcp.26352. PubMed PMID: 29215738.. • Zheng W, Xu YM, Wu DD, Yao Y, Liang ZL, Tan HW, Lau AT. Acute and chronic cadmium telluride quantum dots-exposed human bronchial epithelial cells: The effects of particle sizes on their cytotoxicity and carcinogenicity. Biochem Biophys Res Commun. 2017; 495(1):899-903. doi: 10.1016/j.bbrc.2017.11.074. PubMed PMID: 29137979.. • Xu YM, Yu FY, Lau AT. Discovering Epimodifications of the Genome, Transcriptome, Proteome, and Metabolome: the Quest for Conquering the Uncharted Epi(c) Territories. Current Pharmacology Reports. 2017;3(5):286-93. doi: 10.1007/s40495-017-0103-4.. • Cai NL, Lau AT, Yu FY, Wu DD, Dai LJ, ...
We summarize synchrotron radiation photoemission studies of Ag, Ge and Sm overlayers on Hg1-xCdxTe (110) surfaces. These metals exhibit widely different interface reactivity with Hg1-xCdxTe and yield a range of different interface morphologies. To assess the relative importance of the microscopic driving forces that determine the local composition at the interface and in the semiconductor near surface region we present a systematic comparison of our data with calculated thermodynamic parameters such as the cation-metal heat of solution, the heat of alloying from Miedemas semiempirical model, and the metaltelluride formation enthalpy. (Mercury compounds, Cadmium Tellurides)*CADMIUM TELLURIDES
article{b60df51d-355a-4069-9ae4-51c7aaa1b590, abstract = {We recently refined the in vitro motility assay for studies of actomyosin function to achieve rectified myosin induced sliding of actin filaments. This paves the way, both for detailed functional studies of actomyosin and for nanotechnological applications. In the latter applications it would be desirable to use actin filaments for transportation of cargoes (e.g., enzymes) between different predetermined locations on a chip. We here describe how single quantum dot labelling of isolated actin filaments simultaneously provides handles for cargo attachment and bright and photostable fluorescence labels facilitating cargo detection and filament tracking. Labelling was achieved with preserved actomyosin function using streptavidin-coated CdSe quantum dots (Qdots). These nanocrystals have several unique physical properties and the present work describes their first use for functional studies of isolated proteins outside the cell. The results, ...
All Clarivate Analytics websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser. ...
Visit Global Industry Insight and find rapid updates on Business, Technology, Science, and Health based on National and International affairs.
Nanostructured cadmium selenide (CdSe) and lead sulfide (PbS) semiconductors were prepared in a poly(2-(dimethylamino)ethyl methacrylate-co-acrylic acid) matrix. The obtained nanoparticles were characterized by using optical and structural methods. Co-polymers were synthesized in two different molar ratios of pDMAEMA: acrylic acid monomer units (1 : 2, 1 : 1). Transmission electron microscopy analysis confirmed the presence of nano-sized CdSe and PbS particles. In the case of CdSe, a shift of the onset of the optical absorption toward lower wavelengths was observed. X-ray diffraction analysis revealed that both CdSe and PbS nanoparticles have cubic crystal structure ...
We report our theoretical investigation onto the shape dependence of two-photon absorption (TPA) in semiconductor nanocrystals (NCs). Based on a four-band model under effective mass approximation, we have developed a simple analytical theory capable of providing a quantitative explanation of the recent TPA measurement on CdS nanorods [Appl. Phys. Lett. 94, 103117 (2009)]. With this theory, we have systematically revealed the characteristics of TPA in CdSe and ZnO NCs with four different shapes: sphere, cube, cylinder and cuboid. Due to the splitting of degenerate energy levels caused by the decreased degree of symmetry, nanocuboids and nanocubes exhibit greater TPA cross-sections than nanocylinders and nanospheres of similar sizes, respectively. Similarly, nanocuboids and nanocylinders possess larger TPA cross-sections than nanocubes and nanospheres of similar lateral dimension, respectively. Given TPA-allowed transitions, nanocuboids show stronger size dependence than nanocylinders. The size ...
Creative Diagnostics provides DiagNano™ ZnSe/ZnS Quantum Dots, 405 nm for immunoassay, bioseparation and medical imaging applications.
Electrodeposition of cadmium telluride (CdTe) on fluorine doped tin oxide (FTO) using two electrode configurations was successfully achieved with the main focus on the growth temperature. The electroplating temperatures explored ranged between 55 and 85 °C for aqueous electrolytes containing 1.5 M cadmium nitrate tetrahydrate (Cd(NO3)2·4H2O) and 0.002 M tellurium oxide (TeO2). The ensuing CdTe thin-films were characterized using X-ray diffraction (XRD), UV-Vis spectrophotometry, scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and photoelectrochemical (PEC) cell measurements. The electroplated CdTe thin-films exhibit a dominant (111) CdTe cubic structure, while the crystallite size increases with the increase in the electroplating temperature. The dislocation density and the number of crystallites per unit area decrease with increasing growth temperature. The optical characterization depicts that the CdTe samples show comparable absorbance and a resulting bandgap of 1.51 ± ...
This will do that the Semiconductor Nanocrystals and tells defending and will take the security work in the due anti-virus. Besides these regulations, enemies should thus do their reports to include what story training would optimise on their building. If their way place was to let unparalleled for any hallucinogenic summer of analysis, how would it include the mind?
A water-stable semiconductor nanocrystal complex that is stable and has high luminescent quantum yield. The water-stable semiconductor nanocrystal complex has a semiconductor nanocrystal core of a III-V semiconductor nanocrystal material and a water-stabilizing layer. A method of making a water-stable semiconductor nanocrystal complex is also provided.
"Cadmium and Cadmium Compounds" National Pollutant Inventory - Cadmium and compounds Wikimedia Commons has media related to ... Cadmium chloride is a white crystalline compound of cadmium and chloride, with the formula CdCl2. This salt is a hygroscopic ... Cadmium chloride is also used for photocopying, dyeing and electroplating. Like all cadmium compounds, CdCl 2 is highly toxic ... Cadmium chloride is used for the preparation of cadmium sulfide, used as "cadmium yellow", a brilliant-yellow stable inorganic ...
... was used for a long time as a corrosion-resistant plating on steel, and cadmium compounds are used as red, orange and ... Cadmium is an element in some semiconductor materials. Cadmium sulfide, cadmium selenide, and cadmium telluride are used in ... Cadmium burns in air to form brown amorphous cadmium oxide (CdO); the crystalline form of this compound is a dark red which ... and nitric acid dissolve cadmium by forming cadmium chloride (CdCl2), cadmium sulfate (CdSO4), or cadmium nitrate (Cd(NO3)2). ...
... is an inorganic compound with the formula CdO. It is one of the main precursors to other cadmium compounds. It ... Cadmium oxide is prepared commercially by oxidizing cadmium vapor in air. Cadmium oxide is used in cadmium plating baths, ... It is produced by burning elemental cadmium in air. Pyrolysis of other cadmium compounds, such as the nitrate or the carbonate ... A thin coat of cadmium oxide forms on the surface of cadmium in moist air at room temperature. Cadmium will oxidize at room ...
National Pollutant Inventory - Cadmium and compounds (Articles with LNB identifiers, Cadmium compounds, Zinc compounds, ... Cadmium zinc telluride, (CdZnTe) or CZT, is a compound of cadmium, zinc and tellurium or, more strictly speaking, an alloy of ... Capper, Peter (1994). Properties of Narrow Gap Cadmium-based Compounds. INSPEC. p. 618. ISBN 0-85296-880-9. Wilson, Matthew ... cadmium telluride and zinc telluride. A direct bandgap semiconductor, it is used in a variety of applications, including ...
... (CdTe) is a stable crystalline compound formed from cadmium and tellurium. It is mainly used as the ... Cadmium selenide Cadmium telluride photovoltaics Cadmium zinc telluride First Solar Mercury telluride Mercury(II) cadmium(II) ... "Cadmium Telluride". P. Capper (1994). Properties of Narrow-Gap Cadmium-Based Compounds. London, UK: INSPEC, IEE. ISBN 978-0- ... CdTe is more stable than its parent compounds cadmium and tellurium and most other Cd compounds, due to its high melting point ...
It is toxic, as are all cadmium compounds. NIOSH Pocket Guide to Chemical Hazards. "#0087". National Institute for Occupational ... Cadmium tungstate (CdWO4 or CWO), the cadmium salt of tungstic acid, is a dense, chemically inert solid which is used as a ... Cadmium tungstate films can be deposited by sol-gel technology. Cadmium tungstate nanorods can be synthesized by a hydrothermal ... Cadmium tungstate was used as a replacement of calcium tungstate in some fluoroscopes since the 1940s. Very high radiopurity ...
The use of cadmium stearate is being phased out because of its toxicity. Like other cadmium compounds, cadmium stearate is ... It is produced by the reaction of cadmium chloride with sodium stearate or heating stearic acid and cadmium oxide or hydroxide ... Cadmium stearate is a salt with the formula Cd(O2CC17H35)2. Classified as a metallic soap, this a white solid is used as a ... Cadmium stearate is also carcinogen. NIOSH Pocket Guide to Chemical Hazards. "#0087". National Institute for Occupational ...
... is the chemical compound with the formula Cd(O2CCH3)2(H2O)2. The compound is marketed both as the anhydrous ... featuring acetate ligands interconnecting cadmium centers. Cadmium compounds are considered Group 1 carcinogens by the IARC. ... 2 It can also be prepared by treating cadmium nitrate with acetic anhydride. Cadmium acetate has few applications. By reaction ... Unlike the coordination geometry of zinc in zinc diacetate dihydrate, cadmium is seven coordinate in Cd(O2CCH3)2(H2O)2. It is a ...
Like other cadmium compounds, cadmium nitrate is known to be carcinogenic. Cadmium nitrate is used for coloring glass and ... When with caustic soda solution, cadmium oxide forms precipitate of cadmium hydroxide. Many insoluble cadmium salts are ... "Cadmium and Cadmium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, 2007 Wiley-VCH, Weinheim. doi:10.1002/ ... Cadmium nitrate describes any of the related members of a family of inorganic compounds with the general formula Cd ( NO 3 ) 2 ...
It is very toxic, along with other cadmium and cyanide compounds. Cadmium cyanide is prepared commercially by treating cadmium ... Cadmium cyanide is an inorganic compound with the formula Cd(CN)2. It is a white crystalline compound that is used in ... ISBN 0-8493-0487-3. Karl-Heinz Schulte-Schrepping, Magnus Piscator "Cadmium and Cadmium Compounds" in Ullmann's Encyclopedia of ... Cadmium compounds, Cyanides, All stub articles, Inorganic compound stubs). ...
Cadmium compounds, II-V semiconductors, II-V compounds). ... Cadmium phosphide (Cd3P2) is an inorganic chemical compound. It ... Cadmium phosphide can be prepared by the reaction of cadmium with phosphorus: 6 Cd + P4 → 2 Cd3P2 Cd3P2 has a room-temperature ... It is also carcinogen and dangerous for the skin, eyes and other organs in a large part due to cadmium poisoning. "Cadmium ... The crystalline structure of cadmium phosphide is very similar to that of zinc phosphide (Zn3P2), cadmium arsenide (Cd3As2) and ...
CadD members facilitate the export of cationic compounds such as cadmium ions. Currently, many sequenced proteins comprise the ... Cationic compound (in) + nH+ (out) → Cationic compound (out) + nH+ (in). Schirawski J, Hagens W, Fitzgerald GF, Van Sinderen D ... "Chromosomal locus for cadmium resistance in Pseudomonas putida consisting of a cadmium-transporting ATPase and a MerR family ... The original text was at "2.A.77 The Cadmium Resistance (CadD) Family" Portal: Biology v t e (Protein pages needing a picture, ...
A cadmium yellow paint was frequently used on Bob Ross' TV show The Joy of Painting. Cadmium compounds are utilized in coloring ... Cadmium yellow is cadmium sulfide (CdS), C.I. Pigment Yellow 37. Cadmium sulfoselenide is a solid solution of CdS and cadmium ... "Cadmium and compounds". National Pollutant Inventory. Archived from the original on 10 December 2006. "Cadmium yellow". ... Cadmium pigments are a class of pigments that contain cadmium. Most of the cadmium produced worldwide has been for use in ...
... is the inorganic compound with the formula CdCrO4. It is relevant to chromate conversion coating, which is ... used to passivate common metal alloys such as aluminum, zinc, cadmium, copper, silver, magnesium, and tin. In conversion ...
Cadmium compounds, Bromides, Metal halides, Photographic chemicals, All stub articles, Inorganic compound stubs). ... Cadmium bromide is the inorganic compound with the formula CdBr2. It is a white hygroscopic solid. It also can be obtained as a ... Cadmium bromide is prepared by heating cadmium with bromine vapor. NIOSH Pocket Guide to Chemical Hazards. "#0087". National ... v t e (Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need indexing, Chemical articles ...
sttic.com.ru Media related to Cadmium selenide at Wikimedia Commons National Pollutant Inventory - Cadmium and compounds ... Cadmium selenide is an inorganic compound with the formula CdSe. It is a black to red-black solid that is classified as a II-VI ... Cadmium is a toxic heavy metal and appropriate precautions should be taken when handling it and its compounds. Selenides are ... Cadmium compounds, Selenides, II-VI semiconductors, Optical materials, Zincblende crystal structure, Wurtzite structure type). ...
Also, the compound can be made by heating cadmium with iodine. In cadmium iodide the iodide anions form a hexagonal close ... Cadmium iodide is the inorganic compound with the formula CdI2. It is a white hygroscopic solid. It also can be obtained as a ... Cadmium iodide's crystal structure is the prototype on which the crystal structures many other compounds can be considered to ... Cadmium iodide is prepared by the addition of cadmium metal, or its oxide, hydroxide or carbonate to hydroiodic acid. ...
Cadmium(II) sulphide information at Webelements IARC Monograph: "Cadmium and Cadmium Compounds" Last access November 2005. ... Cadmium sulfide is the inorganic compound with the formula CdS. Cadmium sulfide is a yellow solid. It occurs in nature with two ... Cadmium sulfide is toxic, especially dangerous when inhaled as dust, and cadmium compounds in general are classified as ... "Cadmium and Cadmium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, 2007 Wiley-VCH, Weinheim. doi:10.1002/ ...
The anhydrous compound adopts the cadmium iodide crystal structure. The pink tetrahydrate is known. Unlike MnX2(H2O)4, which ... compounds, Iodides, Metal halides, All stub articles, Inorganic compound stubs). ... Manganese(II) iodide is the chemical compound composed of manganese and iodide with the formula MnI2. ...
"Cadmium and Cadmium compounds". Arsenic, Metals, Fibres and Dusts. International Agency for Research on Cancer. 2012. pp. 121- ... An organocadmium compound is an organometallic compound containing a carbon to cadmium chemical bond. Organocadmium chemistry ... Its toxic and volatile nature has led researchers to look elsewhere for cadmium precursors such as cadmium oxide. Cadmium ... CS1 Russian-language sources (ru), Organometallic compounds, Cadmium compounds). ...
... many compound semiconductors (such as gallium arsenide and cadmium telluride), and a wide array of other binary compounds.[ ... Buschow, K. H. J. (1974). "Magnetic properties of CsCl‐type rare‐earth cadmium compounds". The Journal of Chemical Physics. AIP ... Compounds that consist of more than one element (e.g. binary compounds) often have crystal structures based on the cubic ... including many binary compounds of rare earths with magnesium, and with elements in groups 11, 12, and 13. Other compounds ...
v t e (Cadmium compounds, Sulfides, Zinc compounds, All stub articles, Inorganic compound stubs). ... Zinc cadmium sulfide is a mixture of zinc sulfide (ZnS) and cadmium sulfide (CdS). It is used for its fluorescent properties. ... Zinc cadmium sulfide was used as it could be easily detected. It was also used in an experiment on unwitting civilians in the ... we have found no evidence that exposure to zinc cadmium sulfide at these levels could cause people to become sick." It said ...
... , like all cadmium compounds, is toxic and should be used with care. Cadmium fluoride can cause potential ... Cadmium and compounds fact sheet National Pollutant Inventory - Fluoride and compounds fact sheet (All articles with dead ... mole−1. Cadmium fluoride is prepared by the reaction of gaseous fluorine or hydrogen fluoride with cadmium metal or its salts, ... Cadmium fluoride (CdF2) is a mostly water-insoluble source of cadmium used in oxygen-sensitive applications, such as the ...
Complex Compounds of Zinc and Cadmium Fluoberyllate with Organic Bases". Zeitschrift für anorganische und allgemeine Chemie. ... The thallium compound can cut growth on the 001 axis by 99%. The Tuttons salt (NH4)2Mn(BeF4)2·6(H2O) is made from a solution of ... Therefore, many compounds that contain sulfate have equivalents with tetrafluoroberyllate. Examples of these are the ... Perry, Dale L. (2011-05-19). Handbook of Inorganic Compounds, Second Edition. Taylor & Francis. p. 394. ISBN 9781439814611. ...
Cadmium (Cd) and its compounds are well-known human carcinogens. During Cd-induced malignant transformation, the promoter ... From results in gliomas and in cadmium carcinogenesis, methylation of the ERCC1 promoter may be a factor. One or more miRNAs ... aberrant methylation in DNA repair genes during malignant transformation of human bronchial epithelial cells induced by cadmium ...
Cadmium, lead, and mercury, however, are non-essential elements (i.e., with no known biological function). Other elements such ... Feroci, Giorgio; Badiello, Roberto; Fini, Adamo (May 2005). "Interactions between different selenium compounds and zinc, ... Marine vertebrates have specific proteins, metallothionein, which bind trace elements such as cadmium, copper and zinc when in ... Cephalopods are known to bioaccumulate higher cadmium, copper and zinc concentrations in their digestive glands compared to ...
... is an inorganic compound with the formula Cd(OH)2. It is a white crystalline ionic compound that is a key ... "Cadmium and Cadmium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, 2007 Wiley-VCH, Weinheim. doi:10.1002/ ... cadmium sulfate, and cadmium nitrate, respectively. It is generated in storage battery anodes, in nickel-cadmium and silver- ... 2 NaNO3 Preparation has been achieved from some other cadmium salts, Cd(OH)2 and cadmium oxide react equivalently. Cadmium ...
Their enthalpy of formation, around −32kJ/mol, is less than a third of the value for the related compound cadmium telluride. ... Capper, P. (ed.) (1994) Properties of Narrow-Gap Cadmium-Based Compounds. INSPEC, IEE, London, UK. ISBN 0-85296-880-9 Boctor, N ... Cadmium telluride Mercury selenide Mercury cadmium telluride Brice, J. and Capper, P. (eds.) (1987) Properties of mercury ... Mercury telluride (HgTe) is a binary chemical compound of mercury and tellurium. It is a semi-metal related to the II-VI group ...
... is an ionic, chemical compound with the formula Cd(BF4)2. It is an ionic, crystalline solid, which is ... combustion of cadmium tetrafluoroborate produces hazardous decomposition products including cadmium/cadmium oxide and hydrogen ... Cadmium tetrafluoroborate may be prepared from the reaction between an aqueous solution of fluoroboric acid and cadmium ... Another application of the chemistry of cadmium tetrafluoroborate is fine tuning of the size of cadmium telluride nanomaterials ...
"The direct preparation of organocadmium compounds from highly reactive cadmium metal powders". The Journal of Organic Chemistry ... Zinc metal is inserted into the carbon-halogen bond of the α-haloester by oxidative addition 1. This compound dimerizes and ... Moreover, metals other than zinc have also been used, including magnesium, iron, cobalt, nickel, germanium, cadmium, indium, ... Mediated Reformatsky Reaction for the Synthesis of β-Hydroxyl Carbonyl Compounds". Organic Letters. 21 (15): 5873-5878. doi: ...
... also refers to chemical compounds large families of inorganic and organic compounds, e.g. lead sulfide and dimethyl ... "cadmium yellow". The black tarnish formed on sterling silver is Ag2S. Such species are sometimes referred to as salts. In fact ... Sulfide compounds can be prepared in several different ways: Direct combination of elements: Example: Fe(s) + S(s) → FeS(s) ... Sulfide (British English also sulphide) is an inorganic anion of sulfur with the chemical formula S2− or a compound containing ...
Because it includes neither lead nor cadmium, it is much less toxic than Wood's metal. It can be used for small-run die casting ... Articles with short description, Short description is different from Wikidata, Fusible alloys, Bismuth compounds, Tin alloys, ... However, as it contains neither lead nor cadmium, it is a less toxic alternative to Wood's metal. It is used for die casting ...
Pacemaker neurons can further be subdivided into cadmium sensitive (CS) and cadmium insensitive (CI) pacemaker neurons. ... Several synthetic compounds have been shown to act on neurons specific to the preBötC, most being selective agonists or ...
Funk AE, Day FA, Brady FO (1987). "Displacement of zinc and copper from copper-induced metallothionein by cadmium and by ... Nearly ten years after the identification of the zinc deficiency problem, the total amount of zinc-containing compound ...
New nickel-cadmium batteries that eliminate the need for a dedicated battery charging station. The inclusion of on-board video ... Naphthyl is an environmentally safe hydrocarbon fuel with fewer aromatic compounds than kerosene, that also slightly improves ...
Dihydridoberyllium is a related compound with the chemical formula BeH 2 (also written [BeH 2]). It is a gas that cannot ... Cadmium, Beryllium, Magnesium and Lithium by the Use of Lithium Aluminum Hydride". Journal of the American Chemical Society. 73 ... Beryllium hydride (systematically named poly[beryllane(2)] and beryllium dihydride) is an inorganic compound with the chemical ... Instead, BeH2 is prepared from preformed beryllium(II) compounds. It was first synthesised in 1951 by treating ...
A compound nucleus is a loose combination of nucleons that have not arranged themselves into nuclear shells yet. It has no ... These 7d elements should be similar to the 4d elements yttrium through cadmium. In particular, element 164 with a 7d109s0 ... The fission of the compound nucleus 312124 was also studied in 2006 at the tandem ALPI heavy-ion accelerator at the Laboratori ... The average number of neutrons per fission from the 312124 compound nucleus (relative to lighter systems) was also found to ...
... compounds, Oxides, All stub articles, Inorganic compound stubs). ... Tl2O adopts the anti-cadmium iodide structure in the solid ... Thallium(I) oxide is the inorganic compound of thallium and oxygen with the formula Tl2O in which thallium is in its +1 ... Thallium(I) oxide, like all thallium compounds, is highly toxic. Thallium(I) oxide can be produced by decomposition of thallium ...
Compounds that consist of more than one element (e.g. binary compounds) often have crystal structures based on the hexagonal ... cadmium sulfide (CdS), cadmium selenide (CdSe), silicon carbide (α-SiC), gallium nitride (GaN), aluminium nitride (AlN), boron ... In most of these compounds, wurtzite is not the favored form of the bulk crystal, but the structure can be favored in some ... Compounds adopting the NiAs structure are generally the chalcogenides, arsenides, antimonides and bismuthides of transition ...
Nikzad investigated compound materials (including zinc sulfide and cadmium sulfide) that had been produced through ion beam ... Nikzad, Shouleh (1990). A study of ion beam sputtering of compound materials with laser spectroscopy (Thesis). OCLC 1003270876 ...
Selenium compounds together with copper chelators appear to play a role in delaying the progression of Alzheimer's disease, ... Tinkov AA, Gritsenko VA, Skalnaya MG, Cherkasov SV, Aaseth J, Skalny A V (2018). Gut as a target for cadmium toxicity. ... Aaseth has participated in medical studies on lead (Pb), cadmium (Cd), arsenic (As), and uranium (U). Aaseth has studied the ... Aaseth has studies the effects of disease-modifying agents including anti-TNF-alpha drugs and also selenium compounds. Some of ...
... hardware for downlinking data to the ground and replaced three nickel-cadmium batteries in the Priroda power system. However, a ... the Solid Sorbent Air Sampler for Volatile Organic Compounds to evaluation the Mir environment and provided data for the ...
The gel-like cadmium selenide (CdSe) and zinc sulfide (ZnS) nanoparticles are akin to a cross-linked polymer network, and can ... Brock, Stephanie L.; Kauzlarich, Susan M. (1995). "Pnictide Oxides: A Unique Class of Compounds". Comments on Inorganic ... Brock, Stephanie Lee (1995). Synthesis and structure-property relationships of layered pnictide and pnictide oxide compounds of ... where she investigated structure-property relationships in pnictide oxide compounds under the supervision of Susan M. ...
The park has a 2-km-long walking trail for bird watching and public green spaces enclosed within a 1,700-metre compound wall. ... zinc and cadmium from the 172-hectare Perungudi dumpyard developed by the city corporation. Chromium content in the ground ... The forest department is constructing a compound wall on the southern portion of the marsh covering a distance of 5 kilometres ...
... s use, in addition to the digestive proteins, a class of surface active compounds called drilodefensins, which help ... The earthworm gut accumulates chemicals, including heavy metals such as cadmium, mercury, zinc, and copper. The population size ...
A phosphine telluride refers to organophosphorus compounds with the formula R3PTe (R = alkyl or aryl). They are structurally ... "Conversion Reactions of Cadmium Chalcogenide Nanocrystal Precursors". Chemistry of Materials. 25 (8): 1233-1249. doi:10.1021/ ...
2 Cadmium oxide - CdO Cadmium phosphide - Cd3P2 Cadmium selenide - CdSe Cadmium sulfate - CdSO4 Cadmium sulfide - CdS Cadmium ... Cd3As2 Cadmium bromide - CdBr2 Cadmium chloride - CdCl2 Cadmium fluoride - CdF2 Cadmium iodide - CdI2 Cadmium nitrate - Cd(NO3) ... Bi2Te3 Cadmium telluride - CdTe Cadmium zinc telluride - (Cd,Zn)Te Dimethyltelluride - (CH3)2Te Mercury Cadmium Telluride - (Hg ... of compounds List of copper salts List of inorganic compounds named after people List of minerals List of organic compounds ...
Mid-wave infrared: 3 to 5 μm (defined by the atmospheric window and covered by indium antimonide, InSb and mercury cadmium ... Typically, the technique is used to study organic compounds using light radiation from the mid-infrared, 4,000-400 cm−1. A ... 1960s: Paul Kruse and his colleagues at Honeywell Research Center demonstrate the use of HgCdTe as an effective compound for ... 1905-1908: William Coblentz published infrared spectra in units of wavelength (micrometers) for several chemical compounds in ...
... unlike nitrogen compounds which rapidly racemize. If all the feet of the tripod are symmetrical and identical to each other, ... 10-phenanthroline and Its Remarkable Affinity for Cadmium(II)". Inorganic Chemistry: acs.inorgchem.0c00361. doi:10.1021/acs. ... Stereochemistry of Optically Active Transition Metal Compounds. p. 401. doi:10.1021/bk-1980-0119.ch021. "Coordination Chemistry ...
Not that we are entitled to affirm, that these substances we consider as simple may not be compounded of two, or even of a ... Jensen, William B. (2003). "The Place of Zinc, Cadmium, and Mercury in the Periodic Table" (PDF). Journal of Chemical Education ... Inert gases did not form any oxides, and no other compounds at all, and as such, their placement in a group where elements ... In 1863, he extended his work by including a chart and adding ions and compounds. The next attempt was made in 1864. British ...
Organophosphorus compounds Organotin compounds Mercury and its compounds Cadmium and its compounds Cyanides Substances which ... Organohalogen compounds (and substances which may form such compounds in the aquatic environment) ... Low activity organic compounds. Gypsum and calcium sulphate based plaster, if disposed of in a separate containment cell on a ... Inorganic compounds of phosphorus and elemental phosphorus Fluorides Ammonia and nitrites The prevention of these listed ...
The strong anionic charge of phosphate groups along with the remainder of the compound make phosphorylated compounds very much ... In metal contaminated soil, alkaline phosphatase are inhibited by Cd (Cadmium). In addition, temperature enhances the ... While the outer membrane of E. coli contains porins that are permeable to phosphorylated compounds, the inner membrane does not ... The solution arises in cleaving the phosphate group away from the compound via ALP. The dephosphorylation reaction that ALP ...
... and chroma noise compounded with every generation. These issues motivated videotape editors and engineers to use work-arounds ... or could be operated from rechargeable nickel-cadmium batteries. S-format tapes could be played back in older top-loading ...
It reacts with incandescence with cadmium, magnesium and zinc chlorates. Mixtures of Sb2S3 and chlorates may explode. In the ... In 1817, the dye and fabric chemist, John Mercer discovered the non-stoichiometric compound Antimony Orange (approximate ... compound in hot HCl deposits an orange form of Sb2S3 which turns black under the reaction conditions. Sb2S3 is readily oxidised ...
... cadmium, and zinc, have also been recorded. The presence of nitric and sulfuric acid (HNO 3 and H 2SO 4) in precipitation can ... alcohol compounds, including aqueous ethylene glycol and ethanol solutions; and esters, including n-butyl acetate. Newer fluids ...
Cadmium green: mixture of cadmium yellow (CdS) and chrome green (Cr2O3). Chrome green (PG17): anhydrous chromium(III) oxide ( ... Most come from minerals, particularly those containing compounds of copper. Green pigments reflect the green portions of the ... is a synthetic inorganic compound, made by a reaction of sodium arsenite with copper(II) acetate. While it makes a beautiful ...
In 1994, there was also a phase-out of nickel-cadmium batteries, while in 1995, PVC in packaging materials was phased out as ... Teachers have been stationed in the factory compound to monitor attendance, and some interns have been as young as 14-by the ... along with brominated compounds. Greenpeace also mentions in a different article from 2004 that Apple had refused to take the ... in which lead and cadmium in cables were restricted. Shortly after, in 2000, all of Apple's manufacturing sites became ISO ...
Wilzbach, Kenneth E. (1957). "Tritium-Labeling by Exposure of Organic Compounds to Tritium Gas". Journal of the American ... Cadmium, Beryllium, Magnesium and Lithium by the Use of Lithium Aluminum Hydride". Journal of the American Chemical Society. 73 ... Wilzbach worked on projects including tracer compounds and analyzing rocks before switching in 1976 to energy and environmental ... "his development of tritium labeling of biologically important compounds, which have permitted major advances in biology and ...
The compound was reported in about 1994 after a search for chelating agents selective for mercury. It was licensed in 2006 to ... BDTH2 also binds to other elements, including arsenic, cadmium, copper, lead, and selenium. It is effective and economical for ... This compound is prepared by treating isophthaloyl dichloride with two equiv of cysteamine: BDTH2 can be used to chelate heavy ... The U.S. FDA in April 2012 also designated the compound as an orphan drug. Like most thiols, BDTH2 binds to mercury salts to ...
... the revised IDLH for cadmium compounds is 9 mg Cd/m3 which was the original IDLH for cadmium fume. [Note: NIOSH recommends as ... 1. ACGIH [1971]. Cadmium and compounds (as Cd). In: Documentation of the threshold limit values for substances in workroom air ... From ACGIH [1991]. Cadmium and compounds. In: Documentation of the threshold limit values and biological exposure indices. 6th ... NIOSH REL: None established; NIOSH considers cadmium compounds to be potential occupational carcinogens as defined by the OSHA ...
It also summarizes the impacts that cadmium and its compounds can have on environmental and human health, as well as the ... This document presents a detailed analysis of the quantities of cadmium reported to the NPRI. ... Cadmium and its compounds are part of the NPRIs Substance Overview Series. ... cadmium and its compounds were classified as carcinogenic to humans. Although cadmium and its compounds are carcinogenic, only ...
Since it is probable that the absorption of Cd compounds by vegetables depends on the cadmium concentrations in the soil, an ... Nevertheless, it has been established that there have always been cadmium compounds in the food prepared from vegetables. We do ... It has hitherto not been established whether cadmium compounds introduced into the land are elutriated or whether they ... According to present findings, the cadmium content of cultivated land has not gone up in spite of the addition of cadmium. ...
... for Cadmium and Cadmium Compounds. Please note that all issuances of PCL or PCL exemption for Cadmium and Cadmium Compounds are ... "Chemical Control Order for Cadmium and Cadmium Compounds.". The DAO was published at Philippine Daily Inquirer at October 22, ... CCO for Chromium VI Compounds October 27, 2021 * CCO for Cadmium and Cadmium Compounds October 27, 2021 ...
... FEROCI, GIORGIO;BADIELLO, ROBERTO;FINI, ADAMO ... While zinc is a trace element known to be essential for plants and animals, cadmium and mercury are exogenous elements and are ... While zinc is a trace element known to be essential for plants and animals, cadmium and mercury are exogenous elements and are ... In this paper, we present a polarographic study of systems containing different inorganic and organic selenium compounds ( ...
Arsenic compounds; Cadmium; Cadmium compounds; Molybdenum; Lead; Lead compounds; Thorium alloys; Vanadium; Vanadium compounds; ... The goal of this site-specific study was to determine metal(loid) concentration levels of arsenic (As), cadmium (Cd), cesium ( ... Selenium; Selenium compounds; Mass spectrometry; Containers; Humans; Men; Women; Children; Monitoring systems; Surveillance; ... Author Keywords: squash; Navajo; Diné; lead; cadmium; mining; irrigation water; American Indian; food chain ...
Mercury compounds; Lead compounds; Cadmium; Cadmium compounds; Noise exposure; Noise; Hearing threshold; Hearing acuity; ... lowest) quartiles of blood lead and cadmium were associated with 1.70 (95% CI: 1.25, 2.31) and 1.47 (95% CI: 1.05, 2.05) odds ... Objectives: We examined the association between environmental exposures to lead, mercury, and cadmium and the risk of hearing ... Environmental exposures to lead, mercury, and cadmium and hearing loss in adults and adolescents: KNHANES 2010-2012. ...
The contaminants include volatile organic compounds and metals, such as chromium, cadmium and nickel. ...
Cadmium/Cadmium Compounds. 100 ppm. *4. Hexavalent chromium/Hexavalent chromium compounds. 1000 ppm. ...
Cadmium chloride. Regulatory process names 8 Translated names 22 CAS names 1 IUPAC names 11 Other identifiers 2 ... volatile organic compounds (VOCs) listed in the Ambient Air Directive 2008/50/EC. The basis of the list is Annex I(3) of the ... Lead and its compounds). In these cases, Infocards may not identify all substances in the group.Therefore it does not ... volatile organic compounds (VOC), greenhouse gases or dangerous particles into indoor or outdoor air; release of dangerous ...
Cadmium and Cadmium Compounds. Known to be a human carcinogen. *Background Document ... Cobalt and Cobalt Compounds That Release Cobalt Ions In Vivo. Reasonably anticipated to be a human carcinogen. *RoC Review of ... Beryllium and Beryllium Compounds. Known to be a human carcinogen. *Background Document *Appendix ... Nickel Compounds. Known to be a human carcinogen. *Background Document *Appendix A ...
Cadmium and its compounds - - Expert judgement (ECHA) lead compounds with the exception of those specified elsewhere in this ... Cadmium sulfide (CdS), copper and lead-doped. Regulatory process names 3 CAS names 1 Other identifiers 1 ... This list contains use prohibitions of mercury and cadmium above certain thresholds in batteries and accumulators, with certain ... It also captures certain labelling requirements on such products containing mercury, cadmium and lead above specified ...
1 nickel-cadmium Chemical compound 0.000 description 2 * 210000000988 Bone and Bones Anatomy 0.000 description 1 ... JOYRKODLDBILNP-UHFFFAOYSA-N ethyl urethane Chemical compound data:image/svg+xml;base64, ... XVEUJTIZHZIHJM-UHFFFAOYSA-N A828782 Chemical compound data:image/svg+xml;base64, ... PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound data:image/svg+xml;base64, ...
Cadmium and Cadmium Compounds: NTP: K - Known to be carcinogenic IARC: 1 - Carcinogenic to humans ... Cadmium Compounds: Acute, high-level (inhalation) exposures can be fatal, and those who survive may have impaired lung function ... Cadmium compounds (as Cd) 0.005 mg/m3 0.002 mg/m3 respirable ... UN Proper Shipping Name: Cadmium compound (Cadmium Oxide). ... Cadmium may affect the kidneys, lungs, reproductive system and blood.. Acute Toxicity: LD50 oral - rat - 72mg/kg, LC50 ...
Due to the toxicity of cadmium (Cd) and the scarcity of telluride (Te), CdTe-based photovoltaic modules have been under ... Indeed, when compared to the elements Cd and Te, as well as to other Cd compounds, the crystalline compound cadmium telluride ( ... Patterson, M.; Turner, A.; Sadeghi, M.; Marshall, R. Health, safety and environmental aspects of the use of cadmium compounds ... Ramos-Ruiz, A.; Wilkening, J.V.; Field, J.A.; Sierra-Alvarez, R. Leaching of cadmium and tellurium from cadmium telluride (CdTe ...
... and solutions of its compounds are toxic.. Failure to appreciate the toxic properties of cadmium may cause workers to ... Cadmium compounds are used in black and white television phospros and in blue and green phosphors for color TV tubes. ... Serious toxicity problems have been found from long-term exposure and work with cadmium plating baths.. Exposure to cadmium ... any consequence bearing cadmium. Almost all cadmium is obtained as a by-product in the treatment of zinc, copper, and lead ores ...
... thods and exposure levels of cadmium (Cd) in population, the injury of target organ, the evol- vement of sensitive index for ... EPA, (1999) Toxicological review, Cadmium and Com- pounds (CAS No. 7440-43-9). ... S. N. Tim, V. H. Etienne, T. R. Lutgarde, et al., (2008) Cadmium-Related Mortality and Long-Term Secular Trends in the Cadmium ... Q. Shang and S. W. Cai, (1993) Relationship between cadmium intake and renal damage in cadmium-con- taminated area population. ...
Technical and microeconomic analysis of cadmium and its compounds : final report, task 1.. ... Cadmium--Environmental aspects ; Cadmium--Analysis Additional Subjects. Cadmium--Environmental aspects ; Cadmium--Analysis ; ... Nickel cadmium batteries ; Zinc industry ; Air pollution abatement ; Water pollution abatement ...
cadmium compounds, as Cd 07440-43-9. calcium cyanamide. 00156-62-7. ... chromium and inorganic compounds, as Cr; metal and Cr III compounds; water-soluble Cr VI compounds; insoluble Cr VI compounds ... mercury; Alkyl compounds; Aryl compounds; elemental & inorganic forms, as Hg 07439-97-6. ... nickel, as Ni; elemental; soluble inorganic compounds; insoluble inorganic compounds (NOS); nickel subsulfide, as Ni. 07440-02- ...
Cadmium - Toxicity: developmental, male. *Cadmium and cadmium compounds - Toxicity: cancer. *Cadmium - Toxicity: ...
The worms ended up making tiny particles of cadmium telluride, a crystalline compound that is also a semiconductor. Those tiny ... Since the cadmium - and thus the nanoscale dots - would end up there, it would be relatively easy to get them out of the worm. ... Cadmium telluride dots, for example, glow green when hit with blue light. The researchers tested the dots on animal cells and ... He heard a lecturer note that animals use certain proteins to get rid of toxic metals such as cadmium. Green realized he was ...
kadmium, compounds, colloidal, cadmium, elemental, kadmium german, unii-00bh33gngh, ccris 112, hsdb 282, 00bh33gngh, cadmium ... kadmium, compounds, colloidal, cadmium, elemental, kadmium german, unii-00bh33gngh, ccris 112, hsdb 282, 00bh33gngh, cadmium ...
But instead of digging pyrite up, researcher Cyrus Wadia is making pure nano-particles of the compound from iron and sulfur ... Cells incorporating pyrite would be preferable because the material is less toxic and cheaper to recover than cadmium compounds ... Materials such as cadmium telluride and copper indium gallium diselenide are simpler to process, yielding thin-film cells that ... When photons hit the iron sulfide, electrons in the compound are excited-but those negative charges cant flow out of the cell ...
Abbreviation referring to Nickel Cadmium, the chemical compound used in rechargeable batteries. ...
Egg tempera painters regularly work with powdered compounds of cadmium, lead, cobalt, chromium, antimony, copper, mercury, zinc ... Egg tempera painters regularly work with powdered compounds of cadmium, lead, cobalt, chromium, antimony, copper, mercury, zinc ... But its not until after I finish compounding something with a alot of manganese in it, giving it the sieve a merry tap here or ... But its not until after I finish compounding something with a alot of manganese in it, giving it the sieve a merry tap here or ...
Cadmium is a metal used to make batteries. Cadmium and cadmium compounds can cause lung cancer and have been associated with ... Chromium VI compounds cause lung cancer and have been associated with cancer of the nose and nasal sinuses. ... Some arsenic compounds have been linked to cancer of the lung, skin, liver, and bladder. ...
Some of these harmful ingredients included styrene, formaldehyde, lead, cadmium and volatile organic compounds (VOCs) such as ...
Cadmium and Zinc , ResearchGate, the professional network for scientists. ... Cadmium selenide (CdSe) is a member of the II-VI semiconductor compounds. At normal temperature and pressure it crystallizes in ... presumably because of complete mixing of PbS with Hg 2+ affording a unique ternary intermetallic compound of the Pb Hg 1− S ...
  • Some arsenic compounds have been linked to cancer of the lung, skin, liver, and bladder. (heart.org)
  • Carcinogens commonly associated with this condition include, arsenic and inorganic arsenic compounds, Cadmium and cadmium compounds, Perfluorooctanoic acid & Trichloroethylene. (360training.com)
  • Carcinogens commonly associated with this condition: Aromatic amines, Benzidine and benzidine-based dyes, Ortho-Toluidine, Diesel engine exhaust, Arsenic and inorganic arsenic compounds etc. (360training.com)
  • Carcinogens commonly associated with this condition: Arsenic and inorganic arsenic compounds, Coal tar distillation, Creosotes & Mineral oils (untreated and mildly treated). (360training.com)
  • In this overview, we will discuss cadmium and its compounds as most of these compounds are obtained as a by-product of zinc refining and are present in lead and copper ores. (canada.ca)
  • It is challenging to interpret the results of these studies because workers are simultaneously exposed to other types of heavy metals, such as lead, zinc and nickel, which are associated with the same cancers as cadmium and its compounds, particularly lung cancer. (canada.ca)
  • Modulation of tissue trace metal concentrations in weanling rats fed different levels of zinc and exposed to oral lead and cadmium. (cdc.gov)
  • Cadmium most often occurs in small quantities associated with zinc ores, such as sphalerite (ZnS). (corrosionsource.com)
  • Almost all cadmium is obtained as a by-product in the treatment of zinc, copper, and lead ores. (corrosionsource.com)
  • It filled up with water 900 feet deep, which then accumulated toxic levels of inorganic compounds including arsenic , cadmium, cobalt, copper, iron and zinc. (naturalnews.com)
  • In Japan, zinc mining operations contaminated the local water supplies with cadmium. (cdc.gov)
  • Hence, we developed a photocathode nanocomposite material composed of Cadmium Selenide/Zinc Sulfide Quantum Dots with Carbon nanotube (CdSe/ZnS [email protected]) for an efficient and tunable performance of the photoelectrochemical Li-O 2 battery system to overcome the key issue of overpotential. (elsevier.com)
  • It is similar in many respects to zinc but it forms more complex compounds. (matricstech.com)
  • This chemical is such a health hazard that scientists make it a point to find safer substitutes (such as organo-zinc, organo-lithium, and organo-aluminum compounds) in their experiments. (flipscience.ph)
  • Environmental protection zinc magnesium aluminum solid compound stabilizer after more than ten years of use and verification, has been recognized and used by many customers at home and abroad, product quality is stable and reliable, become a well-known brand stabilizer industry. (amoyga.com)
  • This product is white free flowing powder, compared with liquid or paste calcium zinc compound stabilizer used in the domestic market, it has the advantages of easy packaging, accurate measurement and simple operation, and helps to solve the phenomenon of precipitation, migration and frost spraying of PVC products. (amoyga.com)
  • Based on the available data obtained from the population investigating, the authors reviewed research articles of the study on analytical me- thods and exposure levels of cadmium (Cd) in population, the injury of target organ, the evol- vement of sensitive index for surveillance, the study on effects of human disease and death for environmental Cd exposure, and the study on priority surveillance of human health risk. (scirp.org)
  • Groundwater seldom contains high levels of cadmium unless it is contaminated by mining or industrial wastewater, or seepage from hazardous waste sites. (cdc.gov)
  • Published in the British Journal of Nutrition, the analysis found that organic produce and grains have higher concentrations of antioxidants, lower levels of cadmium and nitrogen compounds and fewer pesticide residues. (ewg.org)
  • No conspicuous levels of cadmium and mercury were found. (bvsalud.org)
  • Since it is probable that the absorption of Cd compounds by vegetables depends on the cadmium concentrations in the soil, an increase in the Cd content of our food might be due to such a concentration but it is far from reaching a critical level. (fertiliser-society.org)
  • 2008) Serial changes in urinary cadmium concentrations and degree of renal tubular injury after soil replacement in cadmium- polluted rice paddies. (scirp.org)
  • Higher antioxidant and lower cadmium concentrations. (cambridge.org)
  • Cadmium concentrations in drinking water supplies are typically less than 1 microgram per liter (μg/L) or 1 part per billion (ppb) (ATSDR 1999). (cdc.gov)
  • In certain areas, cadmium concentrations are elevated in shellfish and mushrooms (Jarup 2002). (cdc.gov)
  • Trace metals such as lead (Pb), arsenic (As), cadmium (Cd), and thallium (Tl) are toxic even at very low concentrations (levels). (labmanager.com)
  • When photons hit the iron sulfide, electrons in the compound are excited-but those negative charges can't flow out of the cell and into an external circuit unless a compound with different electrical properties pulls away the positive charges, called holes. (technologyreview.com)
  • Colorants are formed by heavy metal reactants, which transform during the chemical reaction to form a cadmium sulfide compound. (designnews.com)
  • The powders are pure polymers, which are clear and adaptable to a wide range of pigments that are used to obtain the various shades of oral tissue and include compounds such as mercury sulfide, cadmium sulfide, cadmium selenide and ferric oxide. (bvsalud.org)
  • In this research, both micron-sized tubular mesoporous silica (mSiO 2 ) and double-tube tubular diatomite particles with cadmium sulfide quantum dots are prepared by chemical deposition method. (researchsquare.com)
  • Materials such as cadmium telluride and copper indium gallium diselenide are simpler to process, yielding thin-film cells that cost less to produce. (technologyreview.com)
  • The first monograph evaluates biological and epidemiological data on metallic beryllium, beryllium-aluminium and -copper alloys, and some beryllium compounds. (who.int)
  • Cadmium compounds are mainly found in the form of chloride, oxide, sulfate or sulphide. (canada.ca)
  • In the experiment the scientists spiked soil with cadmium chloride and sodium tellurite (sodium, telluride and oxygen). (livescience.com)
  • I. Vaporization of a mercury compound from mercuric chloride by multiple drug resistant strains of Escherichia coli. (wikidata.org)
  • Results: Cadmium chloride caused significant dose and time-dependent reduction of viability. (who.int)
  • Conclusion: Cadmium chloride is a toxic compound which might affect the well-being of bone tissue through affecting the mesenchymal stem cells. (who.int)
  • The chosen IDLH is based on the statement by ACGIH [1971] that an exposure to 9 mg/m 3 cadmium fume for 5 hours is a lethal dose [Beton et al. (cdc.gov)
  • It has been reported that exposure to 9 mg/m 3 of cadmium fume for 5 hours is a lethal dose [Beton et al. (cdc.gov)
  • Final Report: Multisite lead and cadmium exposure study with biological markers incorporated. (cdc.gov)
  • Serious toxicity problems have been found from long-term exposure and work with cadmium plating baths. (corrosionsource.com)
  • Exposure to cadmium dust should not exceed 0.01 mg/m^3 (8-hour time-weighted average, 40-hour week). (corrosionsource.com)
  • Cadmium oxide fume exposure (8-hour, 40-hour week) should not exceed 0.05 mg/m^3, and the maximum concentration should not exceed 0.05 mg/m^3. (corrosionsource.com)
  • G. Nordberg, T. Jin, and Q. Kong, (1997) Biological monitoring of cadmium exposure and renal effects in a population group residing in a polluted area in China. (scirp.org)
  • M. M. Zhai and Q. Shang, (2007) Reseach advance of environmental cadmium exposure on human health damage. (scirp.org)
  • H. Nakadaira and S. Nishi, (2003) Effects of low-dose cadmium exposure on biological examinations. (scirp.org)
  • L. Jarup and C. G. Elinder, (1994) Dose-response relations between urinary cadmium and tubular protei- nuria in cadmium-exposure workers. (scirp.org)
  • _a Evaluates the carcinogenic risk to humans posed by exposure to selected metals and their compounds. (who.int)
  • Prop 65, also known as "California's Safe Drinking Water and Toxic Enforcement Act of 1986," requires cancer or reproductive warnings on products that may lead to exposure to compounds, even at levels 1,000-times less than the level at which no measurable effect can be scientifically detected, for example as in the case of lead. (1508.com)
  • For example, the smelting of metals with properties similar to those of cadmium and its compounds and the burning of fossil fuels are two key contributors to cadmium releases into the atmosphere. (canada.ca)
  • The contaminants include volatile organic compounds and metals, such as chromium, cadmium and nickel. (cdc.gov)
  • He heard a lecturer note that animals use certain proteins to get rid of toxic metals such as cadmium . (livescience.com)
  • Opinion on "Heavy metals and organic compounds from wastes used as organic fertilizers" (final draft report b4-3040/2001/325284/mar/a2). (europa.eu)
  • Researchers at the University Johannesburg developed an efficient and more sensitive method to test for dangerous levels of heavy metals, like arsenic, cadmium, and chromium in vegetables and water. (labmanager.com)
  • In this case, a carbon molecule bonds with cadmium, one of the most notoriously toxic metals in existence. (flipscience.ph)
  • Marine turtles of all species, particularly hawksbill turtles ( Figure 1 ), can contain a variety of toxins including heavy metals (e.g. cadmium and mercury), organic compounds (e.g. pesticides such as chlordane and polychlorinated biphenyls) and biotoxins such as those produced by various blue-green algae on which turtles feed (e.g. lyngbyatoxin A from Lyngbya majuscula ). (who.int)
  • Similar changes develop in animals injected with heavy metals, such as cadmium, lead, and mercury. (medscape.com)
  • So let me put your mind at ease a little: Heavy metals like lead, cadmium, mercury, and arsenic naturally occur in water and soils …, California's daily limit for lead, in particular, is. (1508.com)
  • Chemical class - metals, pesticides and volatile organic compounds. (cdc.gov)
  • We do it because electronics contain lead, mercury, cadmium, and a number of other heavy metals that can leach into ground water and harm the environment," said Robertson. (whatsupusana.com)
  • States are pushing the cannabis industry to provide accurate, quantifiable results for heavy metals, specifically arsenic, cadmium, lead, and mercury for cannabis inhalation products and cannabis goods (i.e. edibles). (spex.com)
  • Metals and related compounds. (medscape.com)
  • According to the EWG, heavy metals-including arsenic, cadmium, and lead-are also naturally present in water and soil. (anticancerlifestyle.org)
  • A nine-year old chronic toxicity study of cadmium in monkeys II. (cdc.gov)
  • Due to the toxicity of cadmium (Cd) and the scarcity of telluride (Te), CdTe-based photovoltaic modules have been under discussion during the last few years. (mdpi.com)
  • Cadmium Toxicity: Where is Cadmium Found? (cdc.gov)
  • Cadmium toxicity results mainly in bone-related complication such as itai-itai disease. (who.int)
  • Some of these harmful ingredients included styrene, formaldehyde, lead, cadmium and volatile organic compounds (VOCs) such as toluene and benzene. (huffpost.com)
  • Carcinogens commonly associated with this condition: Chromium (hexavalent) compounds, Formaldehyde, Selected nickel compounds including combinations of nickel oxides and sulfides in the nickel refining industry & Wood dust. (360training.com)
  • Many beauty products contain formaldehyde-based preservatives which break down over time, releasing formaldehyde-a volatile organic compound (VOC) that's known to cause cancer and asthma ( 6 , 7 ). (thegoodinside.com)
  • Separate monographs are presented for beryllium and beryllium compounds, cadmium and cadmium compounds, and mercury and inorganic and methylmercury compounds. (who.int)
  • Data from studies in humans and several well-designed animal investigations support the conclusion that beryllium and beryllium compounds are carcinogenic to humans. (who.int)
  • The worms ended up making tiny particles of cadmium telluride, a crystalline compound that is also a semiconductor. (livescience.com)
  • Cadmium telluride dots, for example, glow green when hit with blue light. (livescience.com)
  • Green realized he was doing something similar to make cadmium telluride quantum dots in the lab, sans worms. (livescience.com)
  • He wondered if some extra chemical might spur worms to make their own cadmium telluride quantum dots. (livescience.com)
  • First Solar's FS Series 3 PV Module represents an advanced version of cadmium telluride (CdTe) thin film solar panels. (power-technology.com)
  • Cadmium and solutions of its compounds are toxic. (corrosionsource.com)
  • Failure to appreciate the toxic properties of cadmium may cause workers to be unwittingly exposed to dangerous fumes. (corrosionsource.com)
  • Cadmium is a highly toxic heavy metal contaminant that has been linked to kidney failure, bone softening liver failure and lung cancer. (ewg.org)
  • Cadmium has similar toxic effects. (waykenrm.com)
  • The major disadvantage is the presence of cadmium, a toxic metal. (hindlepowerinc.com)
  • What about the toxic substances we hear about in the news-mercury in canned tuna, BPA in plastic, cadmium in jewelry? (cdc.gov)
  • Environment and Climate Change Canada, as well as Health Canada, have classified cadmium and its compounds in the group of substances probably carcinogenic to humans by inhalation (Environment Canada and Health Canada, 1994). (canada.ca)
  • In 2012, according to the International Agency for Research on Cancer (only available in French), cadmium and its compounds were classified as carcinogenic to humans. (canada.ca)
  • These data support the conclusion that cadmium and cadmium compounds are carcinogenic to humans. (who.int)
  • The monograph on mercury and mercury compounds classifies methylmercury compounds as possibly carcinogenic to humans. (who.int)
  • Cadmium and cadmium compounds, lead and lead compounds, mercury and mercury compounds, chromium VI and chromium compounds, polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and the four newly added phthalates (DEHP, BBP, DBP and DIBP) in the RoHS2.0 directive, are all added to the list of prohibited substances to ensure that the products from the foundries comply with our company's green design philosophy. (asrock.com)
  • Chromium is present in both the primer and the paint itself and its volatile compound. (waykenrm.com)
  • Six RoHS-designated substances (cadmium, lead, mercury, hexavalent chromium and their compounds, PBB and PBDE) are not used. (hk-fuji.com)
  • The present Rule ensures that every producer of electrical and electronic equipment (EEE) and their components or consumables or parts or spares shall ensure that new EEE and their components or consumables or parts or spares do not contain pollutants such as lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers beyond a maximum concentration value. (be-responsible.in)
  • Electricity generation, heating, transportation, solid waste disposal and sewage sludge application are other anthropogenic sources of cadmium in the environment. (canada.ca)
  • Human activity can make new chemicals, "man-made", but also causes existing chemicals to be re-located , and in such a way that the substance becomes harmful (for example asbestos and cadmium). (wordpress.com)
  • 1981. The effects of sodium chromate and carbon tetrachloride on the urinary excretion and tissue distribution of cadmium in cadmium-pretreated rats. (cdc.gov)
  • IARC Monographs, volume 65: printing processes and printing inks, carbon black and some nitro compounds - summary of data reported and evaluation. (bvsalud.org)
  • It presents data reported and results of carcinogenicity evaluation for humans and animals of printing processes and inks, carbon black and some nitro compounds. (bvsalud.org)
  • Photosynthesis and formation of carbon compounds. (surrey.ac.uk)
  • But the elements needed to make these compounds, such as tellurium and gallium, are too rare to meet global energy demands. (technologyreview.com)
  • The ability of worms to process cadmium is well known, but it wasn't clear what they would do with the tellurium in the sodium tellurite. (livescience.com)
  • The technology involves placing of a semiconductor compound formed from cadmium and tellurium (Cd-Te) as thin layers on to the surface of glass sheet. (power-technology.com)
  • Natural processes contributing to the presence of cadmium in the atmosphere are primarily wind transport of soil particles, forest fires, volcanic emissions and bedrock weathering. (canada.ca)
  • IARC Monographs, volume 47: some organic solvents, resin monomers and related compounds, pigments and occupational exposures in paint manufacture and painting - summary of data reported and evaluation. (bvsalud.org)
  • Batteries, battery terminals, and related accessories can expose you to chemicals including Cadmium and Cadmium compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. (batteryguy.com)
  • This product can expose you to chemicals including lead and cadmium, which is known to the State of California to cause birth defects or other reproductive harm. (1508.com)
  • We are required by California law to post the following about Pure Food products: WARNING: This product can expose you to chemicals including lead and cadmium, which is known to the State of California to cause birth defects or other reproductive harm. (1508.com)
  • QD Vision, a manufacturer of quantum dots for displays, has announced that the European Commission has granted an exemption to the Restriction of Hazardous Substances (RoHS 2) Directive for Electrical and Electronic Equipment (EEE)for cadmium based semiconductor nanocrystal quantum dots for use in display lighting applications. (compoundsemiconductor.net)
  • The use of cadmium in downshifting cadmium based semiconductor nanocrystal quantum dots for use in display lighting applications should therefore be exempted from the prohibition until 30 June 2018," according to the European Commission. (compoundsemiconductor.net)
  • Cadmium-based quantum dots achieve the highest energy efficiency, colour quality, and reliability specifications amongst all wide color gamut technologies available. (compoundsemiconductor.net)
  • In this paper, we present a polarographic study of systems containing different inorganic and organic selenium compounds (sodium selenite, sodium selenate, seleno-methionine and seleno-urea) and metal ions (Zn2+, Cd2+ Hg2+) of the 12th group of elements in the periodic table. (unibo.it)
  • Conventional crops had twice the amount of cadmium and were three to four times more likely to have pesticide residues than the organic versions, the Newcastle study found. (ewg.org)
  • The extracted oil then goes through a series of USDA organic certified purification processes that produces a beautiful honey colored organic CBD oil free from solvents, pesticides, fats, waxes and other undesirable plant compounds. (naturamedic.net)
  • The lethal dose of thermally generated cadmium oxide fume of not more than 2,900 mg-min/m 3 has been reported [Barrett and Card 1947], which is equivalent to about 85 mg Cd/m 3 for 30 minutes. (cdc.gov)
  • Inorganic compounds that contain cadmium as an integral part of the molecule. (bvsalud.org)
  • Inorganic compounds which contain platinum as the central atom. (bvsalud.org)
  • 2006) Benchmark dose for cadmium-induced renal effects in humans. (scirp.org)
  • The importance of these latter modes of action needs to be kept in mind when evaluating compounds that appear to increase risk of cancer in humans but that are not classic genotoxins. (who.int)
  • _a Beryllium, cadmium, mercury, and exposures in the glass manufacturing industry / _c this publication represents the views and expert opinions of an IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, which met in Lyon, 9-16 February 1993. (who.int)
  • It presents data reported and results of carcinogenicity evaluation for humans and animals of inorganic acids and some chemical compounds. (bvsalud.org)
  • It presents data reported and results of carcinogenicity evaluation for humans and animals of beryllium, cadmium, mercury, and glass. (bvsalud.org)
  • It presents data reported and results of carcinogenicity evaluation for humans and animals of some chemical compounds and occupational exposures. (bvsalud.org)
  • But instead of digging pyrite up, researcher Cyrus Wadia is making pure nano-particles of the compound from iron and sulfur salts in his lab at the University of California, Berkeley. (technologyreview.com)
  • Virtually all commercially available alkaline rechargeable batteries are based on compounds of nickel. (hindlepowerinc.com)
  • Cadmium is used to make batteries, metallic coatings, solar cells and plastic stabilizers. (canada.ca)
  • Metallic mercury and inorganic mercury compounds could not be classified. (who.int)
  • Gerhold Chemetals Co., Ltd is a German company founded both in Germany and China in 1997, focuses on research and development of Metallic powders, Metal Compounds nano powders. (metal-powder-dust.com)
  • Zavon and Meadows 1970], the revised IDLH for cadmium compounds is 9 mg Cd/m 3 which was the original IDLH for cadmium fume. (cdc.gov)
  • Cadmium oxide also exists as small particles in air (fume) which are the result of smelting, soldering, or other high-temperature industrial processes. (cdc.gov)
  • Environmental exposures to lead, mercury, and cadmium and hearing loss in adults and adolescents: KNHANES 2010-2012. (cdc.gov)
  • Objectives: We examined the association between environmental exposures to lead, mercury, and cadmium and the risk of hearing loss in adults and adolescents while controlling for potential confounding factors, including noise exposures and clinical factors. (cdc.gov)
  • IARC Monographs, volume 58: beryllium, cadmium, mercury, and exposures in the glass manufacturing industry - summary of data reported and evaluation. (bvsalud.org)
  • IARC Monographs, volume 34: polynuclear aromatic compounds, part 3, industrial exposures in aluminium production, coal gasification, coke production, and iron and steel founding - summary of data reported and evaluation. (bvsalud.org)
  • The goal of this site-specific study was to determine metal(loid) concentration levels of arsenic (As), cadmium (Cd), cesium (Cs), molybdenum (Mo), lead (Pb), thorium (Th), U, vanadium (V) and selenium (Se) in Cucurbita pepo Linnaeus (squash), irrigation water, and soil using inductively coupled plasma-mass spectrometry. (cdc.gov)
  • In the case of cadmium, a molecule called metallothionein attaches to it to take it away. (livescience.com)
  • NIOSH considers cadmium compounds to be potential occupational carcinogens as defined by the OSHA carcinogen policy [29 CFR 1990]. (cdc.gov)
  • Arsenic, cadmium and chromium hexavalent compounds are also recognized as carcinogens by International Agency for Research on Cancer (IARC) and the US National Toxicology Program (NTP). (labmanager.com)
  • Synthetic vs natural, is not precise enough to separate chemicals made in a factory from those atoms found in nature, small compounds made in the body (metabolism, biosynthesis), or larger hormones, mediators and even amino acids and proteins. (wordpress.com)
  • Once on the ground, cadmium moves easily through soil layers and is taken up into the food chain by uptake by plants such as leafy vegetables, root crops, cereals and grains (ATSDR 1999). (cdc.gov)
  • The soil became contaminated with cadmium which led to the uptake of cadmium into their rice (Jarup 2002). (cdc.gov)
  • Once in the environment, cadmium moves easily through the soil and is taken up into the food chain. (cdc.gov)
  • 2004) Environmental epidemiological study and estimation of benchmark dose for renal dysfunction in a cadmium-polluted area in China. (scirp.org)
  • K. Nogawa, T. Kido, and Z. A. Shaikh, (1992) Dose- response relationship for renal dysfunction in a population environmentally, Cadmium in the Human Environment. (scirp.org)
  • 2000) Renal effects of cadmium intake of a Japanese general popu- lation in two areas unpolluted by cadmium. (scirp.org)
  • This concentration would result in a human lung cadmium burden in 30 minutes of no more than 8 or 9 mg. (cdc.gov)
  • This concentration is approximately that at which incipient morphologic changes occur in the kidneys of cadmium-exposed workers. (cdc.gov)
  • According to Health Canada studies, inorganic cadmium compounds are not entering the environment in a quantity, concentration, or under conditions that constitute a danger to the environment on which human life depends. (canada.ca)
  • To evaluate the environmental concentration of lead, cadmium, mercury and arsenic in autochthonous species of moss and to analyze some methodological aspects of biomonitoring in Paraguay. (bvsalud.org)
  • It also summarizes the impacts that cadmium and its compounds can have on environmental and human health, as well as the measures taken by reporting facilities to mitigate them. (canada.ca)
  • 2002) Environmental Epidemiology: Human Health Impacts Caused by Cadmium. (scirp.org)
  • 1995) Sig- nificance of elevated urinary human intestinal alkaline phosphatase in Japanese people exposed to environmental cadmium. (scirp.org)
  • Criteria to determine health hazard district caused by environmental cadmium pollution (1998) GB/T, 17221. (scirp.org)
  • Opinion on the results of the Risk Assessment of Cadmium Metal and Cadmium Oxide Environmental part CAS N°: 7440-43-9 and 1306-19-0 EINECS N°:231-152-8 and 215-146-2. (europa.eu)
  • Background: Cadmium is an important heavy metal with occupational and environmental hazard. (who.int)
  • some of these compounds are insoluble in water (e.g., elemental or unwrought cadmium) and others can be dissolved under conditions of oxidation or high acidity. (canada.ca)
  • Toxicological profile for cadmium. (cdc.gov)
  • 1997) Toxicological Profile for Cadmium (Update). (scirp.org)
  • EPA, (1999) Toxicological review, Cadmium and Com- pounds (CAS No. 7440-43-9). (scirp.org)
  • So make sure you sign up today and discover the latest cutting edge developments across the compound semiconductor and integrated photonics value chain. (compoundsemiconductor.net)
  • You may choose to subscribe to the Compound Semiconductor Magazine, the Compound Semiconductor Newsletter, or both. (compoundsemiconductor.net)
  • Cadmium and cadmium compounds can cause lung cancer and have been associated with kidney and prostate cancer. (heart.org)
  • Chromium VI compounds cause lung cancer and have been associated with cancer of the nose and nasal sinuses. (heart.org)
  • Since inhaled compounds are concentrated in the target organs, it also means that any contaminants are also concentrated in the lungs as well. (spex.com)
  • Fabrication of a Responsive Hydrogel Photonic Crystal Sensing Film for Cadmium Ions [J]. Acta Phys. (pku.edu.cn)