Results 31 to 40 of about 1,819,266 (364)

Visualizing H2O molecules reacting at TiO2 active sites with transmission electron microscopy

open access: yesScience, 2020
Imaging reactive surface water Recent developments in transmission electron microscopy (TEM) have enabled imaging of single atoms, but adsorbed gas molecules have proven more challenging because of a lack of sufficient image contrast.
Wentao Yuan   +10 more
semanticscholar   +1 more source

Synthesis of NiO nanowalls by thermal treatment of Ni film deposited onto a stainless steel substrate [PDF]

open access: yes, 2008
Two-dimensional nanostructures have a variety of applications due to their large surface areas. In this study, the authors present a simple and convenient method to realize two-dimensional NiO nanowalls by thermal treatment of a Ni thin film deposited ...
Alphonse, Pierre   +3 more
core   +3 more sources

Conventional transmission electron microscopy

open access: yesMolecular Biology of the Cell, 2014
Researchers have used transmission electron microscopy (TEM) to make contributions to cell biology for well over 50 years, and TEM continues to be an important technology in our field. We briefly present for the neophyte the components of a TEM-based study, beginning with sample preparation through imaging of the samples.
Winey, Mark   +3 more
openaire   +4 more sources

Transmission and scanning electron microscopy of cutis rhomboidalis

open access: yesAnais Brasileiros de Dermatologia, 2021
Cutis rhomboidalis nuchae was assessed in a 65-year-old patient. Optical microscopy showed basophilic agglomerations in the reticular dermis with decreased elastic fibers.
Ângela Faistauer Torre   +3 more
doaj   +1 more source

A combined FEG-SEM and TEM study of silicon nanodot assembly [PDF]

open access: yes, 2008
Nanodots forming dense assembly on a substrate are difficult to characterize in terms of size, density, morphology and cristallinity. The present study shows how valuable information can be obtained by a combination of electron microscopy techniques.
B. Caussat   +14 more
core   +3 more sources

Amorphous interface layer in thin graphite films grown on the carbon face of SiC [PDF]

open access: yes, 2011
Cross-sectional transmission electron microscopy (TEM) is used to characterize an amorphous layer observed at the interface in graphite and graphene films grown via thermal decomposition of C-face 4H-SiC.
Bolen, M. L.   +3 more
core   +3 more sources

Scanning transmission electron microscopy* [PDF]

open access: yesJournal of Microscopy, 1974
SUMMARYThe scanning transmission electron microscope is of quite recent origin, and it is only in the last few years that it has been shown that this instrument is capable of giving the same high resolution as the conventional electron microscope. In this article we examine the conditions necessary for the achievement of high resolution and also the ...
openaire   +2 more sources

Does drying affect gel networks? [PDF]

open access: yes, 2018
The properties of low molecular weight gels are determined by the underlying, self-assembled network. To access information on the network, it is common for techniques to be used that require the gel to be dried, such as transmission electron microscopy ...
Adams, Dave J.
core   +2 more sources

Highly Coherent Femtosecond Electron Pulses for Ultrafast Transmission Electron Microscopy [PDF]

open access: yesEPJ Web of Conferences, 2019
We describe the implementation and detailed characterization of a laser-triggered field-emitter electron source integrated into a modified transmission electron microscope. Highly coherent electron pulses enable high resolution ultrafast electron imaging
Bach Nora   +9 more
doaj   +1 more source

Scanning ultrafast electron microscopy [PDF]

open access: yes, 2010
Progress has been made in the development of four-dimensional ultrafast electron microscopy, which enables space-time imaging of structural dynamics in the condensed phase. In ultrafast electron microscopy, the electrons are accelerated, typically to 200
Mohammed, Omar F.   +2 more
core   +1 more source

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