Results 21 to 30 of about 278,712 (252)

Electrochemical and Optical Properties of Tellurium Dioxide (TeO2) Nanoparticles

International Journal of Electrochemical Science, 2021
Herein, a facile hydrothermal method was used for the preparation of nanostructured TeO2. Different techniques (X-ray diffraction, transmission electron microscope, and scanning electron microscope) were used for morphology, size, and crystalline ...
Abdelfattah Amari, Mohammed K. Al Mesfer, Norah Salem Alsaiari, Mohd Danish, Ali M. Alshahrani, Mohamed A. Tahoon, Faouzi Ben Rebah   +6 more
doaj   +1 more source

Transport Simulations on Scanning Transmission Electron Microscope Images of Nanoporous Shale

Energies, 2020
Digital rock physics is an often-mentioned approach to better understand and model transport processes occurring in tight nanoporous media including the organic and inorganic matrix of shale.
Laura Frouté, Yuhang Wang, Jesse McKinzie, Saman A. Aryana, Anthony R. Kovscek   +4 more
doaj   +1 more source

Towards electron beam shaping in an ultrafast transmission electron microscope using structured light [PDF]

EPJ Web of Conferences
With the recent developments in Ultrafast Transmission Electron Microscopes (UTEM), new opportunities have emerged to overcome the limitations of conventional Transmission Electron Microscopes (TEM). Combined with optical pump-electron probe experiments,
Rollo Valentin, Weber Sébastien, Arbouet Arnaud   +2 more
doaj   +1 more source

Kinking of GaP Nanowires Grown in an In Situ (S)TEM Gas Cell Holder

Advanced Materials Interfaces, 2023
Nanowires are a promising structure to create new defect‐free heterostructures and optoelectronic devices. GaP nanowires grown via the VLS mechanism using tertiary‐butyl phosphine (TBP) and trimethylgallium (TMGa) as precursors in an in situ closed gas ...
David Krug, Maximilian Widemann, Felix Gruber, Shamail Ahmed, Thomas Demuth, Andreas Beyer, Kerstin Volz   +6 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Growth of membrane nanostructures on W co-deposition layer

Nuclear Materials and Energy, 2019
Large-scale mm thick fiberform nanostructures are grown when materials are subjected to high flux helium ions with tungsten particles (ions and neutrals) precipitation.
Shin Kajita, Naoaki Yoshida, Shota Kawaguchi, Hirohiko Tanaka, Noriyasu Ohno, Daisuke Nagata, Masayuki Tokitani   +6 more
doaj   +1 more source

Exploring the environmental transmission electron microscope [PDF]

Micron, 2012
The increasing interest and development in the field of in situ techniques have now reached a level where the idea of performing measurements under near realistic conditions has become feasible for transmission electron microscopy (TEM) while maintaining high spatial resolution. In this paper, some of the opportunities that the environmental TEM (ETEM)
Wagner, Jakob B.; id_orcid 0000-0002-2945-0190, Cavalca, Filippo, Damsgaard, Christian D.; id_orcid 0000-0002-3117-8616, Duchstein, Linus D.L., Hansen, Thomas W.; id_orcid 0000-0002-1861-3054, Renu Sharma, Peter A. Crozier   +5 more
openaire   +2 more sources

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Effect of Aging on the Histological Structure of the Colon of Male Albino Rat: Light and Electron Microscopic Study [PDF]

The Egyptian Journal of Histology
Introduction: Aging is the impelling cause behind age related diseases. The colon, as a part of the gastrointestinal tract, is impacted by aging. Elders frequently complain of constipation, fecal incontinence and fecal impaction, that affects their life ...
Dina Rashad, Safaa shaker, Nevine Bahaa, Faika EL Ebiary   +3 more
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source