Bright-held imaging

Figure 4.3. C0-ALPO5 catalyst (with (Co/Co + Al) = 0.036) (a) an SEM image (b) an HRTEM image (inset— simulated structure) and (c) x-ray elemental map of Co-ALPO indicating uniform distribution of the elements Al, P and Co. The bright-held image is also shown.

Figure 1.25 Comet tailing generated by polishing on specimen surface (a) bright-held image and (b) Nomarski contrast image. (Reproduced with permission of Struers A/S.)...

Figure 3.19 Bright-held images of aluminum alloy. The contrast difference between (a) and (b) is generated by tilting the specimen. Individual grains are marked with numbers. (Reproduced with permission from M. von Heimandahl, Electron Microscopy of Materials, Academic Press, New York. 1980 Elsevier B. V.)...

Figure 3 Radiation-induced metal clusters, (a) Silver nanoclusters stabilized by PVA (10 nm). (b) STM imaging ofa single duster of the blue sol of silver oligomers Agd formed by y irradiation (n = 4). (c) Clusters ofAg, partially reduced by irradiation and then chemically developed by EDTA. (100 nm large and 15 nm thick), (d) TEM bright-held Image ofNi , PVA clusters (5 nm). (e) Two-dimensional self-assembled array of gold dusters (PVA) on mica with remarkable homodisperse size (5 nm). (f) Monocrystalline Pt nanotubes with CPCI (10 nm diameter and a few 100 nm long), (g) Pt nanorods with CTAB (3-4 nm thick and 20-40 nm long).

FIGURE 1.18 TEM bright-held images and SAD pattern for synthesized SrTiOj (120 h milling) (a) and (b). (Reprinted from Sensors /., 5, Hu Y, Tan O. K., Cao W., and Zhu W., Fabrication characterization of nano-sized SrTiOj-based oxygen sensor for near-room temperature operation, IEEE 825-832, 2005 with permission from Elsevier.)... 

Although many studies on DNA and DNA-protein interaction have utilized metal shadowing to produce bright-held image contrast, dark-held TEM (annular or spectroscopic) of unstained or uranyl acetate-stained and metal-shadowed nucleic acid-protein complexes also provides useful resolution. In Figure 5, a short length of DNA (2356 base pairs), with attached progesterone receptor, is revealed by dark-held TEM. The RecA protein has the ability to... 

Figure 30 Fibrous scaffolds produced by Kres et al. through incubation of the designed peptides with metal, (a) With Zn(II) (b) With Cu(n) (c) With Co(II) (d) With Ni(II) (e) A bright-held image of the network when the biotin-labeled peptide is incorporated and bound to fluorescently labeled streptavidin (f) A fluorescence microscopy image of (e). (Scale bars in images (a-d) = 5 tm and (e, f) = 200 pm.) (Reproduced from Ref. 94. Wiley-VCH, 2009.)...

Figure 14.13. High-resolution TEM bright-held images of supported Pt catalysts prepared by SB12-stabilized method (a) Pt/MWNTs-m, (b) Pt/MWNTs-m, (c) Pt/C, and (d) Pt/C [100]. (Reprinted by permission of ECS—The Electrochemical Society, from Li X, Ge S, Hui CL, Hsinga I-M. Well-dispersed multiwalled carbon nanotubes supported platinum nanocatalysts for oxygen reduction.)...

Figure 3.14 TEM micrographs of the same area of a HDPE with a banded spherulite in HEM [15] (a) bright-held image with visible cntting artefacts and (b) dark-held image which do not show these cntting artefacts.

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