• We provide the scientific community with state-of-the-art microanalytic capabilities, including microscopy, chromatography, spectroscopy and structural analysis. (xerox.com)
  • The morphologies of the F-GQDs were characterized by transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) measurements were performed on ESCALAB using an AI Ka radiation. (hindawi.com)
  • Ultraviolet-visible spectroscopy was characterized with an UV/VIS/NIR spectrometer. (hindawi.com)
  • Time-resolved photoemission electron microscopy (TR-PEEM) belongs to a class of experimental techniques combining the spatial resolution of electron-based microscopy with the time resolution of ultrafast optical spectroscopy. (lu.se)
  • Compound identification methods discussed include x-ray diffraction, infrared spectroscopy, scanning and transmission electron microscopy, selective area electron diffraction, and optical and reflected light microscopy. (cdc.gov)
  • The morphology, microstructure, and optical properties of the products were characterized by X-ray powder diffraction (XRD), Raman spectrum, scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and ultraviolet-visible (UV-Vis) absorption spectroscopy. (hindawi.com)
  • In the study, they determined the optimum time required to produce the most uniform crystals of the CZTS semiconductor - 18 minutes in the microwave oven - and confirmed the material indeed was CZTS by using a variety of tests, such as X-ray crystallography, electron microscopy, atomic force microscopy and ultraviolet spectroscopy. (scienceblog.com)
  • The presence of the ligand coating in solution is corroborated by Fourier transform infrared spectroscopy (FT-IR) and the particle size distribution is analyzed by transmission electron microscopy (TEM). (rsc.org)
  • The as-prepared CT nanocomposites were characterizedby powder X-ray diffraction, field emission scanning electron microscopy, Raman spectroscopy, transmission electron microscopy and X-ray photoelectron spectroscopy to evaluate their structures and properties. (ias.ac.in)
  • The characterization of the CeO$_2$ NPs was carried out using different techniques such as powder X-ray diffraction, Fourier transform infrared spectroscopy, high-resolution transmission electron microscopy and ultra-violet visible spectroscopy. (ias.ac.in)
  • Its behavior in dental tissues was evaluated through an energy dispersive X-ray spectroscopy (EDS) analysis, using a scanning electron microscope (SEM). (intechopen.com)
  • The structural, morphological, and optical properties of the films were analyzed using X-ray diffraction, scanning electron microscopy, atomic force microscopy transmission electron microscopy, and photoluminescence spectroscopy etc. (ncl.edu.tw)
  • Exploiting dark autoionising states for enhancing extreme ultraviolet laser power relevant for advanced ultrafast science applications such as angle-resolved photoemission spectroscopy and photoemission electron microscopy. (spectroscopyeurope.com)
  • At BESSY II, Auger photoelectron coincidence spectroscopy (APECS) can be used to precisely determine the localisation of d electrons in cobalt compared to nickel and copper. (spectroscopyeurope.com)
  • UHV X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy systems have unravelled the Na interaction process at Na/CuPc and Na/F16CuPc interfaces. (spectroscopyeurope.com)
  • Their results allow the generation of ultrafast extreme ultraviolet light relevant for advanced ultrafast science applications such as angle-resolved photoemission spectroscopy and photoemission electron microscopy. (spectroscopyeurope.com)
  • In addition to providing an intense extreme ultraviolet light source, this study also shows for the first time the prospect of studying the dynamics of dark autoionising states at the femtosecond timescale using the technique of high harmonic spectroscopy. (spectroscopyeurope.com)
  • The nanocompounds (tris(vanadyl)-substituted tungsto-antimonate(III) anions [POM1] and tris-butyltin-21-tungsto-9-antimonate(III) anions [POM2]) were characterized by analytical techniques, including ultraviolet-visible, Fourier transform infrared, nuclear magnetic resonance spectroscopy, and transmission electron microscopy. (ualr.edu)
  • He brings a variety of in situ and ex situ characterization methods to bear on the these materials, including high-resolution x-ray and ultraviolet photoelectron spectroscopy, x-ray diffraction, Rutherford backscattering, scanning transmission electron microscopy, electron energy loss spectroscopy, atom probe tomography and scanning probe microscopy. (pnnl.gov)
  • Separation performance was conducted on a dead-end filtration cell and metal ions were determined by atomic absorption spectroscopy (AAS), and ultraviolet and visible (UV-vis) spectrophotometry was used for sulphates. (scielo.org.za)
  • 200, 110, and 60 Å) have been synthesized via the ultrasonic mediated reduction of mixtures of chlorogermanes and organochlorogermanes (or organochlorosilanes) by a colloidal sodium/potassium alloy in heptane, followed by annealing in a sealed pressure vessel at 270 °C. The quantum dots are characterized by transmission electron microscopy, x-ray powder diffraction, x-ray photoemission, infrared spectroscopy, and Raman spectroscopy. (caltech.edu)
  • Colloidal suspensions of these quantum dots were prepared and their extinction spectra are measured with ultraviolet/visible (UV/Vis) and near infrared (IR) spectroscopy, in the regime from 0.6 to 5 eV. (caltech.edu)
  • As well as x-ray fluorescence analysis Clare has experience using scanning electron microscopy with energy dispersive x-ray spectroscopy (SEM-EDX) for the measurement and analysis of synthetic vitreous fibres, char fragments and pigments. (uclan.ac.uk)
  • The characterization of these was carried out using traditional techniques to solid, such as Spectroscopy Ultraviolet-visible (UV-vis) Spectroscopy Infrared Fourier Transform (IV), X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). (ufrgs.br)
  • The A.annua-AuNPs were characterized using Ultraviolet-visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FTIR), Dynamic light scattering (DLS), and High-resolution transmission electron microscopy (HRTEM). (uwc.ac.za)
  • The as-synthesized photocatalysts have been characterized by powder X-ray diffraction, Raman Spectroscopy and transmission electron microscopy to confirm their structure and surface morphology. (ias.ac.in)
  • Ultraviolet-visible spectroscopy has been utilized to study the change in percentage degradation of the dye with variation in dosages of photocatalyst, dye concentration and variation in pH of the dye. (ias.ac.in)
  • The hydrogel samples were made by using the freeze‑thawing method, and they were examined using the Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), porosity amusement, swelling ratio and keratin release kinetic models that analyzed using (zero-order, first-order Higuchi and Korsmeyer-Peppas models). (preprints.org)
  • Grain size (N=6/n=1) of zirconia was investigated by using scanning electron microscopy. (uzh.ch)
  • The photocatalytic efficiency was evaluated by visual inspection, field emission scanning electron microscopy (FESEM) and colour spectrophotometry. (european-coatings.com)
  • The effects of these NPs on Acinetobacter baumannii , Staphylococcus aureus , and Escherichia coli biofilms were studied using quantitative biofilm inhibition and disruption assays, as well as using fluorescence, -scanning electron microscopy, and atomic force microscopy. (dovepress.com)
  • The fabricated membranes were characterised using scanning electron microscopy (SEM), contact angle analyser, Fourier transform infrared (FTIR), porosity determination and pure water flux measurements. (scielo.org.za)
  • The scanning electron microscopy was used to study the etched surfaces of GaN. (ntnu.edu.tw)
  • Benefit from the delicately designed hierarchical carbon spheres core and cerium-doped manganese dioxide nanosheets shell structure, the capacity and stability of CS@Ce-MnO2 based flexible ZIBs has been dramatically improved, and the origin of the improved electrochemical performance and storage mechanism was demonstrated by electrochemical methods and ex-site x-ray diffraction (XRD) and scanning electron microscopy (SEM). (bvsalud.org)
  • The changes were quantified through rugosimetric analysis and Scanning Electron Microscopy. (bvsalud.org)
  • The Scanning Electron Microscopy analyses were performed under magnifications of 250x, 500x, 1000x and 2000x. (bvsalud.org)
  • high-resolution transmission electron microscopy and various techniques characterized the synthesized AgNPs. (ijpsonline.com)
  • By varying the reaction conditions and using alcohols as agents to limit particle growth size, the researchers say they have determined through high-resolution transmission electron microscopy that they have been able to successfully grow particles that are nearly identical, delivering essentially defect-free superalloy metal nanoparticles. (science20.com)
  • The formation of the orthorhombic phase was confirmed through high-resolution transmission electron microscopy. (infim.ro)
  • Contrast can arise from position-to-position differences in the thickness or density ("mass-thickness contrast"), atomic number ("Z contrast", referring to the common abbreviation Z for atomic number), crystal structure or orientation ("crystallographic contrast" or "diffraction contrast"), the slight quantum-mechanical phase shifts that individual atoms produce in electrons that pass through them ("phase contrast"), the energy lost by electrons on passing through the sample ("spectrum imaging") and more. (wikipedia.org)
  • The silver NPs (AgNPs), gold NPs (AuNPs), and bimetallic NPs (AgAuNPs) were synthesized from root extract and characterized using ultraviolet-visible spectra, X-ray diffraction (XRD), energy-dispersive spectrometry (EDS), transmission electron microscopy (TEM), and dynamic light scattering (DLS). (dovepress.com)
  • Transmission electron microscopy (TEM) is a microscopy technique in which a beam of electrons is transmitted through a specimen to form an image. (wikipedia.org)
  • Transmission electron microscopes are capable of imaging at a significantly higher resolution than light microscopes, owing to the smaller de Broglie wavelength of electrons. (wikipedia.org)
  • Transmission electron microscopy is a major analytical method in the physical, chemical and biological sciences. (wikipedia.org)
  • In 1986, Ruska was awarded the Nobel Prize in physics for the development of transmission electron microscopy. (wikipedia.org)
  • Uranyl formate (UO2(CHO2)2·H2O) is a salt that exists as a fine yellow free-flowing powder occasionally used in transmission electron microscopy. (wikipedia.org)
  • It is occasionally used as a 0.5% or 1% aqueous negative stain in transmission electron microscopy (TEM) because it shows a finer grain structure than uranyl acetate. (wikipedia.org)
  • Here atom probe tomography, transmission electron microscopy and electron beam-induced current are used to clarify the dependence of Se content on the photoactive properties of CdTe x Se 1₋x alloy layers in bandgap-graded CdTe solar cells. (osti.gov)
  • The characterization of Ag-NPs in terms of shape, size, and polydispersity was performed through spectrophotometry of ultraviolet-visible light analysis (UV-vis), as well as by transmission electron microscopy. (intechopen.com)
  • The laser is used to generate short attosecond pulse trains for pump-probe experiments in the gas phase based on a homemade 3D photoelectron/ion coincidence spectrometer and on surfaces and nanostructures based on photoemission electron microscopy (PEEM). (lu.se)
  • Thermal gravimetric analysis, ultraviolet-visible spectrophotometry, ion specific electrodes, and standard wet chemical procedures are briefly discussed. (cdc.gov)
  • Electron microscopic diagnosis is uniquely suited for rapid microscopy fully, it should be quality controlled, applied as a identification of infectious agents. (cdc.gov)
  • Electron microscopic (EM) visualization of negatively stained poxvirus virions was a valuable technique for confirming poxvirus infections during the smallpox eradication campaign. (cdc.gov)
  • The training is called "EQA-EMV (External Quality Assurance Scheme in Electron Microscopy Virus Diagnostics) - Ring test electron microscopic virus diagnostics. (cdc.gov)
  • Conclusive diagnosis of these viruses requires electron microscopic examination of stool specimens, a laboratory technique that is available only at a few large centers, including CDC. (cdc.gov)
  • light and electron microscopic studies and x-ray microanalysis. (cdc.gov)
  • They found that under certain resonance conditions governed by the primary laser parameters and the electronic structure of the atomic and ionic species in the laser-ablated plume, the conversion efficiency and hence the power of the extreme ultraviolet laser source is enhanced by more than ten times. (spectroscopyeurope.com)
  • A lower energy arm (around 100 mJ) is used for the generation of intense attosecond pulse trains in the extreme-ultraviolet spectral range via high-order harmonic generation for attosecond pump-probe experiments in atomic and molecular systems. (lu.se)
  • The deep-ultraviolet photodetector characteristics based on Al-doped ZnGa2O4 film are also investigated. (ncl.edu.tw)
  • The results indicate that RF magnetron sputtered Al-doped ZnGa2O4 films possess excellent photoluminescence and deep-ultraviolet photodetector characteristics whereas ZnO: ZnGa2O4 films possess promising gas sensing capabilities. (ncl.edu.tw)
  • The combination of deep-ultraviolet photodetector, photoluminescence, and gas sensing characteristics makes ZnGa2O4 based films a versatile material for a wide range of next generation applications. (ncl.edu.tw)
  • Difference frequency generation (DFG) x-correlation and DFG x-FROG: used to characterize deep ultraviolet (UV) pulses (200-300 nm central wavelength) of the duration longer than ~12 fs. (lu.se)
  • The newly published results are a step forward not only in understanding the behaviour of dark autoionising states under intense ultrafast laser‒matter interactions, but also in bringing intense extreme-ultraviolet laser sources from large-scale synchrotron and free-electron laser facilities to the moderate-sized laser laboratories", says PhD student Mangaljit Singh. (spectroscopyeurope.com)
  • We present a setup for generating tunable broadband ultraviolet (UV) laser pulses via achromatic second harmonic generation. (lu.se)
  • An international research team, led by Professors Tsuneyuki Ozaki and François Légaré at the Institut national de la recherche scientifique (INRS), has developed a unique method to enhance the power of a laser source emitting extreme ultraviolet light pulses. (spectroscopyeurope.com)
  • The device used two magnetic lenses to achieve higher magnifications, arguably creating the first electron microscope. (wikipedia.org)
  • In that same year, Reinhold Rudenberg, the scientific director of the Siemens company, patented an electrostatic lens electron microscope. (wikipedia.org)
  • Electron microscope 2SPI.com Archived 2015-07-03 at the Wayback Machine, compound information, retrieved May 3, 2011. (wikipedia.org)
  • Likewise, they tend to operate only in the ultraviolet, visible (from violet to red) or the invisible near and mid-infrared wavelength range. (spectroscopyeurope.com)
  • This combination provides insight into fundamental processes on the nanometer spatial and femto/picosecond time scale, such as charge carrier transport in semiconductors or collective excitations of conduction band electrons at metal surfaces. (lu.se)
  • The principal reason for the high reversible specific capacity is the plausible Zn2+ and H+co-insertion/extraction, while the porous structure of the carbon spheres contributes to the improved electron conduction and ion transport in the MnO2 matrix. (bvsalud.org)
  • [ 6 ] Animals injected with nalidixic acid and then exposed to ultraviolet radiation for 10 weeks exhibited more severe cutaneous manifestations than mice treated with sodium chloride solution. (medscape.com)
  • Other mechanisms have been proposed to explain the role of ultraviolet or visible light radiation in drug-induced pseudoporphyria. (medscape.com)
  • We explore the synthesis, characterization, neutral launch and vacuum ultraviolet ionization of massive perfluorinated-alkyl-capped nanoparticles. (rsc.org)
  • We investigate hot carrier cooling in individual InAs nanowires where we find evidence that electron-hole scattering strongly contributes to the intra-band energy relaxation of photoexcited electrons on a sub-picosecond time scale and we observe ultrafast hot electron transport towards the nanowire surface due to an in-built electric field. (lu.se)
  • This includes identification of natural and synthetic fibres using compound and polarised light microscopy, and analysis of glass fragments using stereo and compound microscopy to examine fragment morphology along with phase contrast microscopy to measure glass refractive index. (uclan.ac.uk)
  • An innovative method of amplifying low-light-level signals above the CCD read noise is employed in electron multiplying CCD technology. (fsu.edu)
  • It is quite sensitive to light, especially ultraviolet light, and will precipitate if exposed. (wikipedia.org)
  • The state-of-the-art systems employ commercially available primary laser sources for high-order harmonic generation from noble gases to develop secondary sources of coherent extreme ultraviolet light. (spectroscopyeurope.com)
  • The electrodeless photoelectrochemical (PEC) wet etching of GaN, photoassisted with chopped ultraviolet light, was investigated. (ntnu.edu.tw)
  • Light and electron microscopy demonstrated a subepidermal split beneath the basal lamina at the same level as seen in histologic examination of porphyria cutanea tarda and pseudoporphyria. (medscape.com)
  • Formvar-carbon-coated 400 mesh copper grids (Electron Microscopy Sciences) (On these grids it is the shiny side that is coated with plastic. (cdc.gov)
  • The first electron micrograph of poxvirus was published in ly devastating agents such as modified ectromelia virus (2), the 1938. (cdc.gov)
  • A total of 99 anterior lens capsules (ALCs) of patients with ARC of various nuclear grades, ultraviolet models of ALCs, and two human lens epithelial cell lines (FHL-124 and SRA01/04) were used, and the expression of histone H3, CRYAA, GLB1, and p53 were detected by immunoblotting and reverse transcription and real time-quantitative polymerase chain reaction. (techscience.com)
  • An image is formed from the interaction of the electrons with the sample as the beam is transmitted through the specimen. (wikipedia.org)
  • Additional effects still unexplored are the band dependence of the interfacial charge modulation and the associated changes of the electron-phonon interaction, coupling the charge and lattice degrees of freedom. (infim.ro)
  • Our k-resolved results on the orbital occupancy, band filling and electron-lattice interaction in multiferroic oxide heterostructures modulated by the ferroelectric polarization disclose most fundamental physics of these systems needed for further progress of beyond-CMOS ferro-functional electronics. (infim.ro)
  • In 1972, in the examination of stool specimens, electron microscopy identified the Norwalk agent, the most common viral cause of gastroenteritis outbreaks among adults. (cdc.gov)
  • see Figure 1), spinning disk confocal in live-cell imaging, flux determinations of calcium or other ions, and time-resolved three-dimensional microscopy (4-D techniques), the electron multiplying CCD offers significant advantages over other sensors designed for low signal levels. (fsu.edu)
  • The experimental band dispersions from the buried La1-xSrxMnO3 identify coexisting two-dimensional hole and three-dimensional electron charge carriers. (infim.ro)
  • The ferroelectric polarization modulates their charge density, affecting the coupling of the 2D holes and 3D electrons with the lattice which forms large Frohlich polarons inherently reducing mobility of the charge carriers. (infim.ro)
  • It was observed that the rate of recombination of electrons and holes at a dislocation defect was greater than for crystalline GaN, resulting in a rough etched surface with pyramids. (ntnu.edu.tw)
  • Diagnostic electron microscopy has two advantages over ance of vesicular lesions or respiratory illness in farm animals enzyme-linked immunosorbent assay and nucleic acid amplifi- may be evidence of an emerging disease, a possible zoonosis, cation tests. (cdc.gov)
  • The inherent advantages of scientific charge-coupled device ( CCD ) sensors for digital imaging in optical microscopy have made them ubiquitous in a wide variety of applications. (fsu.edu)
  • The luminescence properties of these ions, such as fine lines of absorption and emission, are due to electron transitions within the partially filled 4f layer which is protected from the environment by 5s and 5p external electrons. (fapesp.br)
  • While recent studies suggest that health- the undirected, "open view" of electron microscopy allows rapid care systems are ill prepared to treat victims and contain the morphologic identification and differential diagnosis of different spread of an infectious agent (5), the performance of physi- agents contained in the specimen. (cdc.gov)
  • By incorporating on-chip multiplication gain (see Figure 1), the EMCCD achieves, in an all solid-state sensor, the single-photon detection sensitivity typical of intensified or electron-bombarded CCDs at much lower cost and without compromising the quantum efficiency and resolution characteristics of the conventional CCD structure. (fsu.edu)
  • Quantum efficiency now exceeds 90 percent and read noise is limited to less than 4 electrons rms (root-mean-square) in some high performance back-illuminated CCD camera systems. (fsu.edu)
  • The research team worked on lens design and CRO column placement, to optimize parameters to construct better CROs, and make electron optical components to generate low magnification (nearly 1:1) images. (wikipedia.org)
  • Applications of diagnostic electron microscopy in clinically or outbreak-associated agents as diverse as Nipah virus (6) and epidemiologically critical situations as well as in bioterrorist gastroenteric agents (7) indicate that identification of an out- events are discussed. (cdc.gov)
  • However, many advanced scientific applications require lasers to operate at shorter wavelengths in the extreme ultraviolet range. (spectroscopyeurope.com)
  • Thus, late 1950s (12) and the wider availability of electron micro- the most potent defenses remain rapid identification of the scopes, electron microscopy (as a catchall method) became event and agent, treatment of the victims, and containment of essential in characterizing many new isolates detected in diag- infection. (cdc.gov)
  • Developments in ultraviolet (UV) microscopes, led by Köhler and Rohr, increased resolving power by a factor of two. (wikipedia.org)
  • These systems are sometimes referred to as proximity-focused image intensifiers and utilize a photocathode closely coupled to a micro-channel plate ( MCP ) electron multiplier. (fsu.edu)
  • This implies that the same extreme ultraviolet power can be obtained using a primary laser with power that is one-tenth of the power required for a typical noble gas. (spectroscopyeurope.com)
  • Consequently, the approach is applicable to any of the current CCD sensor architectures, including back-illuminated devices, and sensors employing electron multiplying registers are considerably less expensive to manufacture due to the signal amplification stage being incorporated directly into the CCD structure. (fsu.edu)