High-Resolution Scanning Transmission Electron Tomography and Elemental Analysis of Zeptogram Quantities of Heterogeneous Catalyst

2004 ◽  
Vol 108 (15) ◽  
pp. 4590-4592 ◽  
Author(s):  
Paul A. Midgley ◽  
John Meurig Thomas ◽  
Lydia Laffont ◽  
Matthew Weyland ◽  
Robert Raja ◽  
...  
Keyword(s):  
High Resolution ◽  
Heterogeneous Catalyst ◽  
Elemental Analysis ◽  
Electron Tomography ◽  
Scanning Transmission Electron ◽  
Transmission Electron ◽  
Scanning Transmission

Undecagold labeling of tRNA

1991 ◽  
Vol 49 ◽  
pp. 44-45
Author(s):  
James F. Hainfeld ◽  
Kyra M. Alford ◽  
Mathias Sprinzl ◽  
Valsan Mandiyan ◽  
Santa J. Tumminia ◽  
...  
Keyword(s):  
High Resolution ◽  
Transmission Electron Micrograph ◽  
Anticodon Loop ◽  
Electron Micrograph ◽  
Reaction Conditions ◽  
Scanning Transmission Electron ◽  
Transmission Electron ◽  
Scanning Transmission

The undecagold (Au11) cluster was used to covalently label tRNA molecules at two specific ribonucleotides, one at position 75, and one at position 32 near the anticodon loop. Two different Au11 derivatives were used, one with a monomaleimide and one with a monoiodacetamide to effect efficient reactions.The first tRNA labeled was yeast tRNAphe which had a 2-thiocytidine (s2C) enzymatically introduced at position 75. This was found to react with the iodoacetamide-Aun derivative (Fig. 1) but not the maleimide-Aun (Fig. 2). Reaction conditions were 37° for 16 hours. Addition of dimethylformamide (DMF) up to 70% made no improvement in the labeling yield. A high resolution scanning transmission electron micrograph (STEM) taken using the darkfield elastically scattered electrons is shown in Fig. 3.

Cryo-scanning transmission electron tomography of vitrified cells

2014 ◽  
Vol 11 (4) ◽  
pp. 423-428 ◽  
Author(s):  
Sharon Grayer Wolf ◽  
Lothar Houben ◽  
Michael Elbaum
Keyword(s):  
Electron Tomography ◽  
Scanning Transmission Electron ◽  
Transmission Electron ◽  
Scanning Transmission

scholarly journals The Importance of High-Resolution Scanning Transmission Electron Microscopy For Fine-Scale Dislocation Analysis

2010 ◽  
Vol 16 (S2) ◽  
pp. 1798-1799
Author(s):  
PJ Phillips ◽  
L Kovarik ◽  
RR Unocic ◽  
D Wei ◽  
D Mourer ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Scanning Transmission Electron Microscopy ◽  
Fine Scale ◽  
Scanning Transmission Electron ◽  
Transmission Electron ◽  
Scanning Transmission

Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.

Arrangements of Fe-Centered Zn12 Icosahedra in Fe-Zn Intermetallic Compounds Determined by Ultra-High Resolution Scanning Transmission Electron Microscopy

2015 ◽  
Vol 1760 ◽  
Author(s):  
Norihiko L. Okamoto ◽  
Akira Yasuhara ◽  
Katsushi Tanaka ◽  
Haruyuki Inui
Keyword(s):  
Crystal Structure ◽  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Single Crystal ◽  
Scanning Transmission Electron Microscopy ◽  
Scanning Transmission Electron ◽  
Transmission Electron ◽  
Deformation Properties ◽  
Scanning Transmission

ABSTRACTThe crystal structure of the δ1p phase in the Fe-Zn system has been refined by single-crystal synchrotron X-ray diffraction combined with ultra-high resolution scanning transmission electron microscopy. The crystal structure can be described to build up with Fe-centered Zn12 icosahedra. The deformation properties obtained by single-crystal micropillar compression tests of the δ1p phase is discussed in terms of the arrangement of the Fe-centered Zn12 icosahedra in contrast with the ζ phase in the Fe-Zn system.

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