MembraneCation selectiveReceptorsMembranesOrganicEither anions or cationsResinCations and anionsInhibitorChemosensorInorganicElectrodesFluoride ionMass selective detectorPathwaysSensorsAdsorptionFluorescent probeAqueousRecognitionUreaChromatographyFluorescenceColorimetricResinsHydrogenInteractionsReactiveSaltsAnalytesQuantificationDetectionRenalPhosphateExchangeChemistryPreferentialExperimentalPrinciplesLengthsBiologicalAminoCompoundsAcidMolecularFormationStronglyMetabolicChannelPotassiumSensitiveRevealInteraction
Membrane10
- For example, when targeting anions, quaternary ammonium salts (such as tetraoctylammonium bromide) are used to provide cationic nature to the membrane, facilitating anion mobility through the substrate to the receptor moieties. (wikipedia.org)
- Previous studies have suggested the involvement of organic anion and oligopeptide transporters in membrane transport of β-lactams. (aspetjournals.org)
- Membranes are usually arranged in an alternating pattern, with anion-selective membrane followed by a cation-selective membrane. (fujifilm.com)
- Specifically, there is a need for an anion exchange membrane (AEM) with excellent chemical stability in a strongly alkaline environment, good photo-stability, good hydroxide conductivity, and one that is mechanically robust to limit hydrogen and oxygen crossover. (sbir.gov)
- Process-structure-property relationships were used to guide our development of these new membrane materials as highly selective anion-exchange membranes. (sbir.gov)
- The fluoride ion selective membrane utilizes a membrane consisting of a slice of a single crystal of lanthanum fluoride that has been doped with europium (II) fluoride to improve its conductivity (Skoog et al. (cdc.gov)
- Now, in a paper in the ACS journal Nano Letters , the team reports a refinement of the earlier Prussian blue analog-based system system, which although it operated with high efficiency, used an ion-selective membrane which, in turn, raised concerns about the overall cost. (greencarcongress.com)
- (c) A TREC with an ion-selective membrane to block certain ions to avoid side reactions (i.e., the earlier system). (greencarcongress.com)
- However, one potential issue they identified with their system was the use of an ion-selective membrane to allow NO 3 − anion passing through but not Cu 2+ cations to avoid side reaction between CuHCF and Cu 2+ . (greencarcongress.com)
- In this system, ions involved in each electrode do not have side reactions with each other, so the ion-selective membrane is unnecessary and can be replaced by an inexpensive porous separator. (greencarcongress.com)
Cation selective2
- There is a wide range of applications of ChemFETs, including most notably anion or cation selective sensing. (wikipedia.org)
- Freshwater and saltwater solutions pass through a stack of cells, which alternate between ion-exchange membranes (cation selective and anion selective). (comsol.com)
Receptors6
- A novel benzthiazole-based fluorescent receptor was synthesized, and its anion recognition properties were compared with those of similarly designed benzimidazole-based receptors. (elsevierpure.com)
- First, four polymerizable anion receptors containing a urea-type binding site and different fluorophores as signaling units were prepared. (fq.edu.uy)
- Tritopic ion-pair receptors based on anion-pi interactions for selective CaX2 binding. (mpg.de)
- 3) Explore self-assembly and self-organization of anion-binding units into preorganized receptors at liquid-liquid interfaces, colloidal assemblies (e.g., micelles, vesicles), covalent-organic networks, and crystalline salts, with enhanced anion-separation functions . (ornl.gov)
- To address the overarching goal and the specific aims, we are pursuing a novel class of anion receptors and materials based on iminoguanidines, readily assembled from simple aminoguanidinium salts and aldehyde precursors. (ornl.gov)
- The development of new organic receptors for the detection of anions is of key interest to supramolecular chemists owing to the biological and environmental importance of anions [1-7] . (beilstein-journals.org)
Membranes3
- Suitable membranes can be constructed to permit selective passage of either anions or cations. (fujifilm.com)
- In a saline solution, dissolved ions such as sodium(+) and chloride(-) migrate to the opposite electrodes passing through selected membranes that either allow cations or anions to pass through(not both). (fujifilm.com)
- Also, aligned carbon nanotubes will be chemically modified and tested as ion selective membranes. (sense.nl)
Organic9
- We showed previously that grapefruit and orange juices inhibited human enteric organic anion-transporting polypeptide (OATP)1A2 in vitro and lowered oral fexofenadine bioavailability clinically. (nih.gov)
- Inclusion of long aliphatic chains on these ligands allows the assemblies to extract anions from aqueous media into organic solvents . (bvsalud.org)
- The objective of the current study was to examine the kinetics of amoxicillin and cefaclor interactions with human renal transporters human organic anion transporter 1 (hOAT1), human peptide transporter 1 (hPepT1), and human peptide transporter 2 (hPepT2) in detail, both as substrates and as inhibitors. (aspetjournals.org)
- Due to its amphoteric nature the imidazole ring can function as selective and effective anion and/or cation and even neutral organic molecules receptor system. (rsc.org)
- Hepatic uptake carriers of the organic anion-transporting peptide (OATP) family of solute carriers are more and more recognized as being involved in hepatic elimination of many drugs and potentially associated drug-drug interactions. (aspetjournals.org)
- In vitro, the majority of bosentan uptake into liver cells was shown to depend on active transport and to be efficiently inhibited by cyclosporin A. All known members of the organic anion transporting polypeptide (oatp) transport protein family expressed in rat liver, i.e., oatp1, oatp2, and oatp4, were shown to be involved in the uptake of bosentan. (aspetjournals.org)
- Functionality of MNPs with ionic liquids greatly influenced the solubility of the MNPs with organic solvents depending on the alkyl chain length and the anions of the ionic liquids. (hindawi.com)
- Ionic liquids, which can be tuned by choosing of the cations and anions independently, exhibited unique physicochemical properties, such as tunable miscibility with water and organic solvents, and have potential applications as electrolyte materials, green solvents, catalysts, and separation mediums [ 9 - 14 ]. (hindawi.com)
- Loss of glomerular function (associated with decreased glomerular filtration rate [GRF]) results in the retention of many end products of metabolism, including the anions of various organic and inorganic acids and urea. (medscape.com)
Either anions or cations1
Resin8
- Methylmalonic acid (MMA) is extracted from plasma along with an added internal standard using an anion exchange resin. (cdc.gov)
- IX using a perchlorate-selective resin followed by resin disposal or destruction is the dominant market technology for perchlorate treatment. (serdp-estcp.org)
- Integrated Ion Exchange (IIX) involves the regeneration of perchlorate-selective resin using tetrachloroferrate (FeCl 4 - ) anion and then returning the resin to service. (serdp-estcp.org)
- This IIX demonstration project included four perchlorate loading cycles to saturation using a 150 gallons per minute (gpm) wellhead treatment unit and a single batch of perchlorate-selective resin. (serdp-estcp.org)
- IIX produced water comparable to that produced with the baseline technology-single-use perchlorate-selective resin treatment. (serdp-estcp.org)
- No degradation in perchlorate-selective resin performance or impacts from metals carryover was found with IIX through three regeneration cycles, despite re-using the FeCl 4 - regenerant. (serdp-estcp.org)
- AmberChrom ™ 1X8 is a strongly basic anion exchange resin which is used as an absorbent in solid phase extraction. (sigmaaldrich.com)
- These small anion-exchange microbeads are permanently attached electrostatically to a larger cation-exchange resin particle. (thermofisher.com)
Cations and anions1
- The AG value represents the difference between unmeasured cations and anions, ie, the presence of anions in the plasma that are not routinely measured. (medscape.com)
Inhibitor1
- Treatment with the more selective aldosterone receptor inhibitor eplerenone is associated with fewer side effects than treatment with spironolactone and may be more effective for hypertension related to primary hyperaldosteronism. (medscape.com)
Chemosensor3
- In this work we present, for the first time, the design of a polymeric optical fluoride chemosensor by using the anion-imprinting technique. (fq.edu.uy)
- Quiñone, Delfina, "Fluoride-selective chemosensor based on an anion imprinted fluorescent polymer," RIQUIM - Repositorio Institucional de la Facultad de Química - UdelaR , accessed September 26, 2023, https://riquim.fq.edu.uy/items/show/6561. (fq.edu.uy)
- reported APTSC as selective chemosensor for fluoride ion over other anions [23]. (researchsquare.com)
Inorganic1
- In this work, a novel kind of modified MNPs with N,N′-dialkylimidazolium-based ionic liquids containing different alkyl chain lengths and inorganic anions were synthesized by covalent bonding. (hindawi.com)
Electrodes1
Fluoride ion1
- There are many experimental reports as molecular optical sensors, while very few reports of selective fluorescence fluoride sensor is seen, due to the surface charge density and similar basicity of fluoride ion with other ions [9-12]. (researchsquare.com)
Mass selective detector2
- MSD, mass selective detector. (aspetjournals.org)
- The effluent from the gas chromatograph is monitored with a mass selective detector using selected ion monitoring. (cdc.gov)
Pathways1
- We provide a transcriptomic and phosphoproteomic atlas of fibrin-, iC3b- and lipopolysaccharide (LPS)-selective activation of innate immunity and reveal ligand-selective pathways with differential functions in MS and AD mice. (nature.com)
Sensors2
- The state-of-the-art involves the supporting of urea/thiourea optical discrete anion sensors into a polymeric scaffold. (fq.edu.uy)
- In view of the fact that ions play a major role in many chemical and biological process, designing ion selective molecular sensors is a challenging entity in supramolecular chemistry [1,2]. (researchsquare.com)
Adsorption3
- This research included adsorption of gold and silver on both weak- and strong-base anion-exchange resins. (cdc.gov)
- Carbon nanotubes (CNTs) will be chemically modified to induce ion selective adsorption. (sense.nl)
- In addition, the role of faradaic and non-faradaic reactions during the selective ion adsorption will also be probed. (sense.nl)
Fluorescent probe1
- This phenomenon is essential for producing a highly selective and sensitive fluorescent probe for picrate anions. (degruyter.com)
Aqueous1
- Kuroda, Y 2001, ' Site-selective Ion-exchange of CuZSM-5 Prepared by Using Aqueous Solutions of Cu2+ with Various Kinds of Anions ', Photon Factory Activity Report , vol. 18B, no. 55. (elsevierpure.com)
Recognition1
- Anion selective recognition plays pivotal roles in the environmental field. (rsc.org)
Urea1
- The term hyperchloremic acidosis (ie, RTA) refers to a diverse group of tubular disorders, uncoupled from glomerular damage, characterized by impairment of urinary acidification without urea and anion retention. (medscape.com)
Chromatography3
- High-Performance Anion-Exchange chromatography with Pulsed Amperometric Detection (HPAE-PAD) is a widely used technique for determination of carbohydrates as it removes the need to modify glycans before analysis and ensures high resolution and sensitivity. (thermofisher.com)
- HPAE-PAD - High-Performance Anion Exchange chromatography with Pulsed Amperometric Detection - is a technique that was developed specifically for the separation and detection of carbohydrates. (thermofisher.com)
- High-Performance Anion Exchange (HPAE) chromatography is used to separate analytes that are ionized under high pH conditions, such as carbohydrates (pKas are usually between 12-13). (thermofisher.com)
Fluorescence2
- The synthesis of a simple fluorescent naphthalimide-based receptor N -allyl-4-iminodi( N -butylacetamide)-1,8-naphthalimide 3 was carried out as a selective picrate (Pic - ) anion probe, and the detecting behavior of this probe was studied by fluorescence spectroscopy. (degruyter.com)
- By adding the picrate anions, green-yellow fluorescence emission quenches, which is easily observed by naked eyes under a 365 nm UV light irradiation. (degruyter.com)
Colorimetric1
Resins4
- Owing to the nonselectivity of strong-base resins, selective elution also was investigated. (cdc.gov)
- Both commercially available and experimental weak- base anion-exchange resins were tested. (cdc.gov)
- Continuous tests conducted with mill cyanide solution in a multicompartmented ion-exchange column using strong-base anion-exchange resins adsorbed nearly 100 pct of the precious metals as well as the iron and nickel. (cdc.gov)
- The columns' nonporous resins have small anion-exchange microbeads carrying the anion-exchange functional groups. (thermofisher.com)
Interactions1
- Energy Decomposition Analysis (EDA) shows that the anion-receptor interactions are predominantly electrostatic. (rsc.org)
Reactive2
- In water solutions, this substance is present as a monovalent anion, ascorbate- (Asc-), which easily donates electrons to oxidized molecules and scavenges reactive oxygen species (ROS). (deepdyve.com)
- Metronidazole, being electron-affinic, can accept an electron from neutral free radical centres to generate a reactive cation that binds to an anion such as hydroxyl (OH-), causing a permanent lesion. (who.int)
Salts1
- Most salts dissolved in water are ions, either positively charged(cations), or negatively charged(anions). (fujifilm.com)
Analytes1
- Most importantly, probe 3 has a high selectivity for picrate over competitive anions and picrate-containing analytes, which meet the selective requirements for practical application. (degruyter.com)
Quantification1
- Unlike other carbohydrate analysis techniques, HPAE-PAD allows for highly selective separation and quantification of non-derivatized carbohydrates. (thermofisher.com)
Detection2
- Increasing research interest on the selective and sensitive detection of anions has enriched the field of anion receptor chemistry with a wide array of design strategies [15-19] . (beilstein-journals.org)
- Detection is sensitive and highly selective for electroactive species, as pulse amperometry only detects compounds which contain the functional groups that are oxidized at the detection voltage utilized. (thermofisher.com)
Renal1
- Primary metabolic acidoses that occur as a result of a marked increase in endogenous acid production (eg, lactic or keto acids) or progressive accumulation of endogenous acids when excretion is impaired by renal insufficiency are characterized by decreased plasma bicarbonate concentration and increased anion gap without hyperchloremia. (medscape.com)
Phosphate3
- Self-Assembled Anion-Binding Cryptand for the Selective Liquid-Liquid Extraction of Phosphate Anions. (bvsalud.org)
- Phosphate can be removed from water efficiently and highly selectively, even in the presence of other anions . (bvsalud.org)
- The leading role of anions such as fluoride, acetate and phosphate at the physiological level in promoting tooth and bone health, metabolism and genetic transduction has been well established [8-14] . (beilstein-journals.org)
Exchange1
- This is accomplished through hydroxide-based eluents and a strong anion-exchange stationary phase. (thermofisher.com)
Chemistry1
- I want to get the latest chemistry news from C&EN in my inbox every week. (acs.org)
Preferential1
- It is worth mentioning that many of the electron-affinic radiosensitizers of hypoxic cells also have the property of preferential or selective toxicity directed against hypoxic cells even in the absence of radiation [1,2]. (who.int)
Experimental1
- The electronic and structural features behind the optical response and anion affinity were elucidated through experimental and computational tools. (fq.edu.uy)
Principles1
- Principles of activation and permeation in an anion-selective Cys-loop receptor. (anl.gov)
Lengths1
- The anion shows characteristic features with respect to bond lengths and angles. (who.int)
Biological1
- Trace levels of fluoride in biological media are determined primarily by potentiometric (ion selective electrode [ISE]) and gas chromatographic (GC) methods. (cdc.gov)
Amino1
- While at Boehringer Ingelheim, Dr. Lorenc developed a direct route to the synthesis of α-(N-hydroxy)amino amides via carbamoyl anion addition to nitrones. (burnslev.com)
Compounds1
- Few organofluorine compounds exist naturally ( C&EN, May 22, page 12 ), meaning that almost all must be made. (acs.org)
Acid1
- Intriguingly, the replacement of gluconate with ascorbate in the patch-clamp pipette reveals a large ascorbate efflux current, which shows sensitivity to the anion channel blocker, anthracene-9-carboxylic acid (A9C), indicative of the ascorbate release via anion channels. (deepdyve.com)
Molecular1
- Density functional theory calculations reveal that the preferen tial interaction of the iodide anion with tellurium is determined by the polarization of the lowest unoccupied molecular orbital [σ*(E−Te)] of the cations in 2a and 2b toward tellurium and that the formation of the dimers 3a and 3b with a central Te−Te linkage is energetically more favorable than the structural isomers with either E−Te or E−E bonds. (jyu.fi)
Formation1
- The formation of the receptor-anion complexes has been supported by UV-vis titration studies and confirmed through binding constant calculations. (beilstein-journals.org)
Strongly1
- strongly basic anion. (sigmaaldrich.com)
Metabolic2
- The initial differentiation of metabolic acidosis should involve a determination of the anion gap (AG). (medscape.com)
- 3) Metabolic acidosis with an increase in the anion gap. (who.int)
Channel2
- Here we present the first three-dimensional structure, to our knowledge, of an inhibitory anion-selective Cys-loop receptor, the homopentameric Caenorhabditis elegans glutamate-gated chloride channel α (GluCl), at 3.3 Å resolution. (anl.gov)
- Oryctolagus cuniculus voltage dependent anion channel 3 (VDAC3), mRNA. (genscript.com)
Potassium1
- Beta-adrenergic agonists, especially selective beta 2-agonists, move potassium into cells, whereas beta-blockade and alpha-agonists promote movement of potassium out of cells. (msdmanuals.com)
Sensitive1
- Fluoride analyses using the ion selective electrode are simple, sensitive, and rapid. (fluoridealert.org)
Reveal1
- The anion binding process follows a first order rate equation and the calculated rate constants reveal a higher order of reactivity for AcO − ions. (beilstein-journals.org)
Interaction1
- The five-membered rings in 2a and 2b both display an elongated E−Te bond as a consequence of an interaction between tellurium and the iodide anion. (jyu.fi)