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Journal articles on the topic 'HRSTEM'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Dennler, Nik, Antonio Foncubierta-Rodriguez, Titus Neupert, and Marilyne Sousa. "Learning-based defect recognition for quasi-periodic HRSTEM images." Micron 146 (July 2021): 103069. http://dx.doi.org/10.1016/j.micron.2021.103069.

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2

Apkarian, Robert P. "High-resolution SEM and STEM of adrenocortical endothelium: Molecular resolution of membrane complexes." Proceedings, annual meeting, Electron Microscopy Society of America 51 (August 1, 1993): 610–11. http://dx.doi.org/10.1017/s0424820100148885.

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A multitude of complex ultrastructural features are involved in endothelial cell (EC) gating and sorting of lipid through capillaries and into steroidogenic cells of the adrenal cortex. Correlative microscopy is necessary to distinguish the structural identity of features involved in specific cellular pathways. In addition to diaphragmed fenestrae that frequently appear in clusters, other 60-80 nm openings; plasmalemma vesicles (PV), channels and pockets fitted with diaphragms of the same dimension, coexist on the thin EC surface. Non-diaphragmed coated pits (CP) (100-120 nm) involved in recep

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3

Ou, H. J., and J. M. Cowley. "High resolution STEM imaging study on high Tc superconductor YBa2CuaO7-x." Proceedings, annual meeting, Electron Microscopy Society of America 46 (1988): 882–83. http://dx.doi.org/10.1017/s0424820100106478.

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Using the dedicate VG-HB5 STEM microscope, the crystal structure of high Tc superconductor of YBa2Cu3O7-x has been studied via high resolution STEM (HRSTEM) imaging and nanobeam (∽3A) diffraction patterns. Figure 1(a) and 2(a) illustrate the HRSTEM image taken at 10' times magnification along [001] direction and [100] direction, respectively. In figure 1(a), a grain boundary with strong field contrast is seen between two crystal regions A and B. The grain boundary appears to be parallel to a (110) plane, although it is not possible to determine [100] and [001] axes as it is in other regions wh

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4

Xing, Y. T., L. Y. Liu, D. F. Franceschini, W. C. Nunes, D. J. Smith, and I. G. Solorzano. "HRTEM and HRSTEM Study of Nanostructured Materials Prepared by Pulsed Laser Deposition." Microscopy and Microanalysis 22, S3 (2016): 2012–13. http://dx.doi.org/10.1017/s1431927616010904.

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5

Sabisch, J. E. C., J. D. Sugar, J. Ronevich, C. San Marchi, and D. L. Medlin. "Interrogating the Effects of Hydrogen on the Behavior of Planar Deformation Bands in Austenitic Stainless Steel." Metallurgical and Materials Transactions A 52, no. 4 (2021): 1516–25. http://dx.doi.org/10.1007/s11661-021-06170-3.

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AbstractThe effects of internal hydrogen on the deformation microstructures of 304L austenitic stainless steel have been characterized using electron backscattered diffraction (EBSD), transmission Kikuchi diffraction (TKD), high-resolution scanning transmission electron microscopy (HRSTEM), and nanoprobe diffraction. Samples, both thermally precharged with hydrogen and without thermal precharging, were subjected to tensile deformation of 5 and 20 pct true strain followed by multiple microscopic interrogations. Internal hydrogen produced widespread stacking faults within the as-forged initially

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6

Potapov, Pavel, Paolo Longo, and Eiji Okunishi. "Enhancement of noisy EDX HRSTEM spectrum-images by combination of filtering and PCA." Micron 96 (May 2017): 29–37. http://dx.doi.org/10.1016/j.micron.2017.02.001.

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7

Srinivasan, R., A. Genc, R. Banerjee, et al. "Coupling LEAP and HRSTEM to study the nanoscale structure and chemistry of interfaces." Microscopy and Microanalysis 14, S2 (2008): 376–77. http://dx.doi.org/10.1017/s1431927608087291.

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8

Farrell, John, Jinglong Guo, James Sites, W. S. Sampath, and Robert Klie. "Characterizing the Back-Contact Interface for CdTe PV through HRSTEM, EELS, and XEDS." Microscopy and Microanalysis 26, S2 (2020): 156–58. http://dx.doi.org/10.1017/s1431927620013616.

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9

Bobynko, J., A. J. Craven, D. McGrouther, I. MacLaren, and G. Paul. "Nanocharacterisation of precipitates in austenite high manganese steels with advanced techniques: HRSTEM and DualEELS mapping." Journal of Physics: Conference Series 522 (June 11, 2014): 012031. http://dx.doi.org/10.1088/1742-6596/522/1/012031.

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10

Stroppa, Daniel G., Luiz F. Zagonel, Luciano A. Montoro, Edson R. Leite, and Antonio J. Ramirez. "High-Resolution Scanning Transmission Electron Microscopy (HRSTEM) Techniques: High-Resolution Imaging and Spectroscopy Side by Side." ChemPhysChem 13, no. 2 (2012): 437–43. http://dx.doi.org/10.1002/cphc.201100729.

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11

Farrell, John, Alexandra Bothwell, Manoj Jamarkattel, Michael Heben, James Sites, and Robert Klie. "Characterizing the Back-Contact Interface of Poly-Crystalline Cd(Se)Te Devices with XEDS, EELS, and HRSTEM." Microscopy and Microanalysis 27, S1 (2021): 742–44. http://dx.doi.org/10.1017/s1431927621002993.

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12

Wejrzanowski, Tomasz, Małgorzata Lewandowska, and Krzysztof J. Kurzydłowski. "STEREOLOGY OF NANO-MATERIALS." Image Analysis & Stereology 29, no. 1 (2011): 1. http://dx.doi.org/10.5566/ias.v29.p1-12.

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Nano-structured materials attract a growing attention due to their superior mechanical and physical properties. Such properties are inherently related to the unique structure which is controlled at the nano-scale. In the early stage of their development, the structural characterization of nano-materials was limited to the average grain/particle size. However, nano-grains/particles form stochastic populations with diverse size and shape. The recent experimental and theoretical results show that in addition to the average size, size diversity of grains/particles has a significant effect on the p

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13

Zhang, Fu, Yanfu Lu, Daniel S. Schulman, et al. "Carbon doping of WS2 monolayers: Bandgap reduction and p-type doping transport." Science Advances 5, no. 5 (2019): eaav5003. http://dx.doi.org/10.1126/sciadv.aav5003.

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Chemical doping constitutes an effective route to alter the electronic, chemical, and optical properties of two-dimensional transition metal dichalcogenides (2D-TMDs). We used a plasma-assisted method to introduce carbon-hydrogen (CH) units into WS2 monolayers. We found CH-groups to be the most stable dopant to introduce carbon into WS2, which led to a reduction of the optical bandgap from 1.98 to 1.83 eV, as revealed by photoluminescence spectroscopy. Aberration corrected high-resolution scanning transmission electron microscopy (AC-HRSTEM) observations in conjunction with first-principle cal

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14

Rakoczy, Łukasz, Bogdan Rutkowski, Małgorzata Grudzień-Rakoczy, Rafał Cygan, Wiktoria Ratuszek та Anna Zielińska-Lipiec. "Analysis of γ′ Precipitates, Carbides and Nano-Borides in Heat-Treated Ni-Based Superalloy Using SEM, STEM-EDX, and HRSTEM". Materials 13, № 19 (2020): 4452. http://dx.doi.org/10.3390/ma13194452.

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The microstructure of a René 108 Ni-based superalloy was systematically investigated by X-ray diffraction, light microscopy, energy-dispersive X-ray spectroscopy, and electron microscopy techniques. The material was investment cast in a vacuum and then solution treated (1200 °C-2h) and aged (900 °C-8h). The γ matrix is mainly strengthened by the ordered L12 γ′ phase, with the mean γ/γ′ misfit, δ, +0.6%. The typical dendritic microstructure with considerable microsegregation of the alloying elements is revealed. Dendritic regions consist of secondary and tertiary γ′ precipitates. At the interfa

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15

Fallah, Vahid, Andreas Korinek, Nana Ofori-Opoku, Nikolas Provatas, and Shahrzad Esmaeili. "Atomistic investigation of clustering phenomenon in the Al–Cu system: Three-dimensional phase-field crystal simulation and HRTEM/HRSTEM characterization." Acta Materialia 61, no. 17 (2013): 6372–86. http://dx.doi.org/10.1016/j.actamat.2013.07.015.

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16

Barra, Ana, Oana Lazăr, Aida Pantazi, et al. "Joining Caffeic Acid and Hydrothermal Treatment to Produce Environmentally Benign Highly Reduced Graphene Oxide." Nanomaterials 11, no. 3 (2021): 732. http://dx.doi.org/10.3390/nano11030732.

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Reduced graphene oxide (rGO) is a promising graphene-based material, with transversal applicability to a wide range of technological fields. Nevertheless, the common use of efficient—but hazardous to environment and toxic—reducing agents prevents its application in biological and other fields. Consequently, the development of green reducing strategies is a requirement to overcome this issue. Herein, a green, simple, and cost-effective one-step reduction methodology is presented. Graphene oxide (GO) was hydrothermally reduced in the presence of caffeic acid (CA), a natural occurring phenolic co

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17

Medlin, D. L., K. Hattar, J. Zimmerman, F. Abdeljawad та S. M. Foiles. "Defect Character at Grain Boundary Facet Junctions: A Combined HRSTEM and Atomistic Modeling Study of a Σ=5 Grain Boundary in Fe". Microscopy and Microanalysis 21, S3 (2015): 1455–56. http://dx.doi.org/10.1017/s1431927615008053.

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18

Allali, Naoual, Veronika Urbanova, Mathieu Etienne, et al. "Accurate control of the covalent functionalization of single-walled carbon nanotubes for the electro-enzymatically controlled oxidation of biomolecules." Beilstein Journal of Nanotechnology 9 (October 26, 2018): 2750–62. http://dx.doi.org/10.3762/bjnano.9.257.

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Single-walled carbon nanotubes (SWCNTs) were functionalized by ferrocene through ethyleneglycol chains of different lengths (FcETGn) and the functionalized SWCNTs (f-SWCNTs) were characterized by different complementary analytical techniques. In particular, high-resolution scanning electron transmission microscopy (HRSTEM) and electron energy loss spectroscopy (EELS) analyses support that the outer tubes of the carbon-nanotube bundles were covalently grafted with FcETGn groups. This result confirms that the electrocatalytic effect observed during the oxidation of the reduced form of nicotinami

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19

Fallah, Vahid, Andreas Korinek, Nana Ofori-Opoku, Nikolas Provatas, and Shahrzad Esmaeili. "Addendum to: “Atomistic investigation of clustering phenomenon in the Al–Cu system: Three-dimensional phase-field crystal simulation and HRTEM/HRSTEM characterization” [Acta Mater. 61 (2013) 6372–6386]." Acta Materialia 83 (January 2015): 470–72. http://dx.doi.org/10.1016/j.actamat.2014.10.035.

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20

Liu, J., G. E. Spinnler, and A. E. Ron. "Imaging small particles with secondary electrons." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 2 (1992): 1288–89. http://dx.doi.org/10.1017/s0424820100131073.

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High resolution secondary electron microscopy (HRSEM) in dedicated scanning transmission electron microscopy (STEM) instruments has proved very useful for characterizing supported catalysts. In order to understand the contrast mechanisms of HRSEM images of small particles, clean samples and UHV environments are needed since the emission of secondary electrons (SEs) can be significantly influenced by contamination on the particle surface. In this paper we report results on imaging small metal particles by HRSEM in a UHV STEM instrument. In addition, we show that with computer assistance digitiz

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21

Galloway, A. L., F. M. Menger, and R. P. Apkarian. "Cryoetch-HRSEM of Novel Ester Modified Surfactants." Microscopy and Microanalysis 10, S02 (2004): 430–31. http://dx.doi.org/10.1017/s143192760488036x.

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22

Chen, Ya, Geoffrey Letchworth, and John White. "Progress in high-resolution CRYO-SEM imaging of viral particles." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 818–19. http://dx.doi.org/10.1017/s0424820100166555.

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Low-temperature high-resolution scanning electron microscopy (cryo-HRSEM) has been successfully utilized to image biological macromolecular complexes at nanometer resolution. Recently, imaging of individual viral particles such as reovirus using cryo-HRSEM or simian virus (SIV) using HRSEM, HV-STEM and AFM have been reported. Although conventional electron microscopy (e.g., negative staining, replica, embedding and section), or cryo-TEM technique are widely used in studying of the architectures of viral particles, scanning electron microscopy presents two major advantages. First, secondary ele

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23

Szczesny, Piotr J., and Don Claugher. "High-Resolution SEM and Freeze Fracture Studies of Human Retina." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 3 (1990): 146–47. http://dx.doi.org/10.1017/s0424820100158273.

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The fine structure of human retinae were investigated with use of TEM and High Resolution SEM combined with freeze fracture and osmium maceration technique paying partic ularattention to the morphology of photo receptor cells. Gluteraldehyde fixed retin al samples from 8 individuals of different age groups, were examined. Fixation time varied from 0 to 3 hours post mortem.Results showed good corelation between the TEM and HRSEM Fig 1-2. HRSEM enabled a detailed study of a several plasma membrane domains of rods and cones. It was possible to examine the inner limiting membrane formed by podocyt

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24

Brezina, Petr. "Some tips and tricks for TEX typesetting." Zpravodaj Československého sdružení uživatelů TeXu 16, no. 1 (2006): 10–25. http://dx.doi.org/10.5300/2006-1/10.

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25

Riva, Alessandro, Felice Loffredo, Alessandro Uccheddu, Francesca Testa Riva, and Bernard Tandler. "Mitochondria of Human Adrenal Cortex Have Tubular Cristae with Bulbous Tips." Journal of Clinical Endocrinology & Metabolism 88, no. 4 (2003): 1903–6. http://dx.doi.org/10.1210/jc.2002-030013.

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By taking advantage of a modified osmium maceration technique, we have been able to examine by high resolution scanning electron microscopy (HRSEM) the interior of human adrenocortical mitochondria from which all soluble material has been extracted. The so-called vesicles apparent in thin sections examined by transmission electron microscopy actually are finger-like cristae as determined by HRSEM. These digitiform cristae have a segmented appearance and a bulbous tip. The segmented form of the cristae may have important metabolic implications.

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26

Watanabe, Ii-sei, Koichi Ogawa, Marcelo Cavenaghi Pereira da Silva, Aracy Akiko Motoyama, Eduardo Shigueaki Kado, and Ruberval Armando Lopes. "Ultrastructure of the adhesion of bacteria to the epithelial cell membrane of three-day postnatal rat tongue mucosa: a transmission and high-resolution scanning electron microscopic study." Brazilian Dental Journal 18, no. 4 (2007): 320–23. http://dx.doi.org/10.1590/s0103-64402007000400009.

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Togue mucosa surface of 3-day postnatal rats was examined under transmission electron microscopy (TEM) and high-resolution scanning electron microscopy (HRSEM). For HRSEM analysis, the specimens were fixed in the same solution for 24 h, postfixed in 2% osmiun tetroxide, critical-point dried and coated with platinum-palladium. For TEM analysis, the specimens were fixed using modified Karnovsky solution and embedded in Spurr resin. The results revealed the presence of numerous microplicae in the membrane surface of keratinized epithelial cells to which groups of bacteria were attached. These bac

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27

Apkarian, R. P. "Mixing Tandem Cryo-Hrsem and Cryo-Stem Images of Cells and Macromolecular Assembles." Microscopy and Microanalysis 7, S2 (2001): 722–23. http://dx.doi.org/10.1017/s1431927600029688.

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Creating contrast of unstained frozen hydrated cells and isolated macromolecules in order to provide high fidelity recordings present several difficulties and therefor require attempts to maximize image information for characterization purposes. Adobe Photoshop 5.0 was employed to overlay (“layer“) topographic high resolution secondary electron (SE-I) images (HRSEM) onto STEM images with and without polarity reversal employed during digital image acquisition. Cells and molecular samples precipitated from an aqueous droplet or aerosol and supported on carbon and holey carbon coated grids were p

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Apkarian, Robert P., and Kenishi Tanaka. "Platelet Activation by ADP and TRAP Using Cryo-HRSEM." Microscopy and Microanalysis 10, S02 (2004): 1224–25. http://dx.doi.org/10.1017/s1431927604880814.

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29

Frethem, C. "Cryo-HRSEM Techniques for Biological and Soft Materials Specimens." Microscopy and Microanalysis 16, S2 (2010): 1942–43. http://dx.doi.org/10.1017/s1431927610056072.

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30

Ugalde, Magali, E. Chavira, Martha T. Ochoa-Lara, and Carlos Quintanar. "New Synthesis Method to Obtain Pd Nano-Crystals." Journal of Nano Research 14 (April 2011): 93–103. http://dx.doi.org/10.4028/www.scientific.net/jnanor.14.93.

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We report a new synthesis method to obtain palladium nano-crystals by sol-gel polymerized with acrylamide. From thermogravimetric analysis (TGA) studies, we found PdO and Pd compounds in the xerogel sample, at 550 °C, and over 900 °C we detected only metallic Pd. These results were corroborated by powder X-Ray Diffraction (XRD), High Resolution Scanning Electron Microscopy (HRSEM), and Transmission Electron Microscopy (TEM). XRD studies exhibit the lines from the tetragonal structure (PDF 41-1107) of PdO compound and from the cubic structure (PDF 46-1043) of Pd metallic. HRSEM micrographs show

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31

Zavaleta-Mancera, HA, G. Hanako, E. Ramírez-Bribiesca, A. Romero-Pérez, E. García-García, and SC Wade. "Looking at Organic Nanoparticles with SEM, CRIO-SEM and HRSEM." Microscopy and Microanalysis 16, S2 (2010): 1168–69. http://dx.doi.org/10.1017/s1431927610056886.

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32

Chang, Irene Y. T., and Derk Joester. "Cryo-Planing Vs Freeze Fracture: Sample Preparation for Cryo-HRSEM." Microscopy and Microanalysis 21, S3 (2015): 377–78. http://dx.doi.org/10.1017/s1431927615002688.

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33

Carpenter, Joe V., Shannon Poges, and Zachary C. Holman. "AC-STEM and HRSEM Investigation of Silica Nanoparticle Film Structure." Microscopy and Microanalysis 25, S2 (2019): 2008–9. http://dx.doi.org/10.1017/s1431927619010778.

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34

Menger, Fredric M., Victor A. Seredyuk, Robert P. Apkarian, and Elizabeth R. Wright. "Colloidal Assemblies of Branched Geminis Studied by Cryo-etch-HRSEM." Journal of the American Chemical Society 124, no. 42 (2002): 12408–9. http://dx.doi.org/10.1021/ja021025w.

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35

Sutrisno, H., E. D. Siswani, and K. S. Budiasih. "The effect of sintering temperatures of TiO2(B)-nanotubes on its microstructure." Science of Sintering 50, no. 3 (2018): 291–98. http://dx.doi.org/10.2298/sos1803291s.

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Titanium dioxide (TiO2)-nanotubes were prepared by a simple technique reflux. The morphologies and microstructures of nanotubes were characterized by high resolution scanning electron microscopy (HRSEM), high resolution transmission electron microscopy (TEM), powder X-ray diffraction (XRD,) energy dispersive X-ray spectroscopy (EDS) and surface area analyzer. The microstructures of TiO2 phases obtained from the sintering process of TiO2-nanotubes for 1 hour at various temperatures from 100 to 1000?C at intervals of 50?C were investigated from the XRD diffractograms. The analyses of morphologie

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36

Li, W. F., T. Ohkubo, T. Akiya, H. Kato, and K. Hono. "The role of Cu addition in the coercivity enhancement of sintered Nd-Fe-B permanent magnets." Journal of Materials Research 24, no. 2 (2009): 413–20. http://dx.doi.org/10.1557/jmr.2009.0041.

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To understand the mechanism of the coercivity enhancement by a trace addition of Cu in Nd-Fe-B sintered magnets, we investigated the microstructure difference between Cu-doped and Cu-free alloys using high resolution scanning electron microscopy (HRSEM), transmission electron microscopy (TEM), and laser assisted three dimensional atom probe (LA-3DAP). From a serial sectioning back scattered electron (BSE) images of the Nd-rich phase obtained by an integration of the focused ion beam (FIB) and HRSEM technique, it was found that Cu addition leads to a continuous formation of Nd-rich thin layers

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37

Apkarian, Robert P., Kevin L. Caran, and Keith A. Robinson. "Topographic Imaging of Chromium-Coated Frozen-Hydrated Cell and Macromolecular Complexes by In-Lens Field Emission Scanning Electron Microscopy." Microscopy and Microanalysis 5, no. 3 (1999): 197–207. http://dx.doi.org/10.1017/s1431927699000148.

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An in-lens Schottky field emission scanning electron microscope (SEM) combined with a transmission electron microscope (TEM)-type cold-stage and a chromium (Cr) sputter-coating system was developed to rapidly prepare and cryo-image biological specimens to attain accurate nanometer-level structural information. High-resolution topographic images at high primary magnification ([eg ]200,000 times) were digitally recorded with very short dwell times and without beam damage. Plunge freezing in ethane, followed by fracturing, Cr coating, and in-lens cryo-high-resolution scanning electron microscope

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38

Margaret, S. Mary, Albin John P. Paul Winston, S. Muthupandi, P. Shobha, and P. Sagayaraj. "A Comparative Study of Nanostructures of CuO/Cu2O Fabricated via Potentiostatic and Galvanostatic Anodization." Journal of Nanomaterials 2021 (August 14, 2021): 1–8. http://dx.doi.org/10.1155/2021/5533845.

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A detailed comparative study on the synthesis process of coral-like CuO/Cu2O nanorods (NRs) and nanopolycrystals (NPCs) fabricated on Cu foil employing aqueous electrolyte via potentiostatic (POT) and galvanostatic (GAL) modes is discussed. The structural, morphological, thermal, compositional, and molecular vibration of the prepared CuO/Cu2O nanostructures was characterized by XRD, HRSEM, TG/DTA, FTIR, and EDX techniques. XRD analysis confirmed the crystalline phase of the formation of monoclinic CuO and cubic Cu2O nanostructures with well-defined morphology. The average particle size was fou

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39

Watanabe, Li-sei, Koichi Ogawa, Eichi Yamada, and Bruno König J. "Three-dimensional images of the mouse submandibular gland: an HRSEM study." Annals of Anatomy - Anatomischer Anzeiger 179, no. 2 (1997): 157–60. http://dx.doi.org/10.1016/s0940-9602(97)80093-3.

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40

Wright, E. R., V. P. Conticello, and R. P. Apkarian. "Morphological Characterization of an Elastin-Mimetic Triblock Copolymer Utilizing CRYO-HRSEM." Microscopy and Microanalysis 7, S2 (2001): 136–37. http://dx.doi.org/10.1017/s1431927600026751.

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The elastin-mimetic tri-block copolymer, C5, with the polypeptide repeat [((VPAVG)(IPAVG)3(VPAVG))m((VPGVG)2(VPGEG)(VPGVG)3)n((VPAVG)(IPAVG)3(VPAVG))m] was produced via protein hyper-expression utilizing a pET plasmid and Escherichia coli (BL21- Gold(DE3)) as the bacterial host. The gene coding for the polypeptide was produced by a multimerization protocol that has undergone recent modifications. A sample of the elastinmimetic block copolymer, C5, was prepared as a 20 to 25 percent protein solutions in sterile ddH20. Approximately 10 μL of the solution was pipetted into 3 mm gold planchets (Ba

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41

Pícoli, Lara Cristina, Fernando José Dias, João Paulo Mardegan Issa, et al. "Ultrastructure of submandibular salivary glands of mouse: TEM and HRSEM observations." Microscopy Research and Technique 74, no. 12 (2011): 1154–60. http://dx.doi.org/10.1002/jemt.21008.

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42

Apkarian, Robert P. "Introduction: High Resolution Cryo-SEM in the Biological Sciences." Microscopy and Microanalysis 9, no. 4 (2003): 272. http://dx.doi.org/10.1017/s143192760303054x.

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What is cryogenic high resolution (in-lens) scanning electron microscopy (HRSEM), and do I need it? Structural cell biologists and bioorganic chemists will find this newly developed imaging mode to be an accurate and useful research tool for molecular level investigations in the hydrated state.

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43

Irfan, H., K. Mohamed Racik, and S. Anand. "X-ray peak profile analysis of CoAl2O4 nanoparticles by Williamson-Hall and size-strain plot methods." Modern Electronic Materials 4, no. 1 (2018): 31–40. http://dx.doi.org/10.3897/j.moem.4.1.33272.

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CoAl2O4nanoparticles were prepared by a sol-gel process using citric acid as chelating agent with different calcination temperatures of 600 to 900 °C. The crystalline spinel cubic phase was confirmed by X-ray diffraction results. High-resolution scanning electron microscopy (HRSEM) revealed that nanoparticles of CoAl2O4morphology showed spherical forms with a certain degree of agglomeration. The Williamson-Hall (W-H) method and size-strain method to evaluate the size of crystallites and strain in the CoAl2O4nanoparticles peak broadening were applied. Physical parameters such as strain and stre

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44

Cosandey, F., L. Zhang, and T. E. Madey. "High Resolution Fesem Study of Au Particle Growth on TiO2." Microscopy and Microanalysis 3, S2 (1997): 405–6. http://dx.doi.org/10.1017/s1431927600008916.

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Transition metals supported on oxides have important catalytic properties and are also used in chemical gas sensors for increasing sensitivity and selectivity. In order to understand growth and reactivity in the Au/TiO2 system, we have performed surface studies on a model system consisting of ultrathin, discontinuous Au films on TiO2 (110) single crystals. In this paper we are presenting results obtained by high resolution scanning electron microscopy (HRSEM) on the effects of substrate temperature and average Au thickness on particle size, density and coverage.The TiO2 (110) single crystal su

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45

Cosandey, F. "High Spatial Resolution EBSD Study of Nanosized Epitaxial Particles." Microscopy and Microanalysis 3, S2 (1997): 559–60. http://dx.doi.org/10.1017/s1431927600009685.

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Traditionally, the structure and orientation relationship of individual catalyst particles on various oxide substrates have been studied by transmission electron microscopy. However, the combination of high resolution scanning electron microscopes (HRSEM) equipped with Schottky field emission sources with CCD cameras for recording electron backscatter diffraction (EBSD) paterns, it is now possible to obtain both morpholgy and orientation of individual particles with high spatial resolution. In this paper, we present results on the application of combined EBSD with HRSEM to determine the epitax

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Lakshmi, R. Radha, D. Sruthi, K. Prithiv, S. Harippriya, and K. R. Aranganayagam. "Synthesis of ZnO and Ag/ZnO Nanorods: Characterization and Synergistic In Vitro Biocidal Studies." Advanced Science Letters 24, no. 8 (2018): 5490–95. http://dx.doi.org/10.1166/asl.2018.12135.

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The ZnO semiconductor has gained substantial interest in the research community in part because of its large exciton binding energy (60 meV) and direct wide band gap (3.72 eV). ZnO and Ag doped ZnO (Agx Zn1−xO (where x = 0.01, 0.02 and 0.03)) were synthesized by using soft chemical route. The synthesized materials were characterized by using XRD, HRSEM, EDS and HRTEM. The powder XRD pattern indicates that the ZnO and Agx Zn1−xO (where x = 0.01, 0.02 and 0.03) samples exhibits hexagonal wurtzite structure and also the Ag doping decreases the grain size of ZnO nano particles. The micro structura

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Apkarian, Robert P. "An in-lens cryostage for high-resolution secondary-I and scanning transmission electron microscopy." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 816–17. http://dx.doi.org/10.1017/s0424820100166543.

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A newly designed cryo-holder was built for the in-lens top stage of a Topcon DS-130 field emission scanning transmission and high resolution secondary electron-I microscope (STEM/HRSEM). The modified Oxford CT-3500 cryo-holder was designed to fit into the narrow bore in-lens of the DS-130F. The cryo-holder was designed to shuttle from the freezing chamber, to the high vacuum chamber of the Denton DV-602 magnetron sputter system for metal coating, and then to the interlock of the DS-130F upper stage. The intention was to provide a single cryo-holder to image frozen specimens by either HRSEM or

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Reichelt, R., U. Aebi, and A. Engel. "An Efficient Annular Dark-Field Detector Capable of Single-Electron Counting Adapted to a High-Resolution Field-Emission SEM." Proceedings, annual meeting, Electron Microscopy Society of America 46 (1988): 190–91. http://dx.doi.org/10.1017/s0424820100103036.

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Various high resolution scanning electron microscopes (HRSEM) are now commercially available providing probe sizes in the range of 0.5 to 1.5 nm at 30 keV due to their field emission gun 1.2. Equipped with efficient detector systems (which collect different signals and applied to specifically prepared samples) HRSEM challenge the conventional transmission electron microscope (TEM) with high resolution surface images of biological specimens collecting secondary (SE) or backscattered (BSE) electrons. However, the yield of (SE) carrying high resolution information is rather small, i.e. the SE-I y

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Dublin, SN, VP Conticello, and RP Apkarian. "In-Lens Cryo-HRSEM of a Freeze-Dried Coiled-Coil Protein Assembly." Microscopy and Microanalysis 12, S02 (2006): 1118–19. http://dx.doi.org/10.1017/s1431927606062374.

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Caran, K. L., R. P. Apkarian, and F. M. Menger. "Examination of Large Unilamellar Vesicles (Luvs) Using Cryo-hrsem and Cryo-Stem." Microscopy and Microanalysis 5, S2 (1999): 1210–11. http://dx.doi.org/10.1017/s1431927600019371.

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Vesicles derive their structure from the aqueous environment surrounding and within them. It follows that traditional EM specimen preparation techniques of fixation, dehydration and drying can induce a variety of morphological changes to the membranes. Vitrification of aqueous suspensions of vesicles provides a means for observation of these structures in their fully hydrated unfixed state. Common cryogenic techniques for the visualization of these and other colloidal particles include cryo-TEM of vitrified thin films and freeze-fracture TEM (FF-TEM) of platinum replicas. We report the use of

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