Results 21 to 30 of about 267,929 (253)

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

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

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

Nutrient/TOR signaling controls adipose mitochondrial transcription factor A (TFAM) to regulate organismal growth in Drosophila

FEBS Letters, EarlyView.
Animals must match their growth rate to available nutrients. We show that in Drosophila larvae, the nutrient‐sensing TOR kinase controls growth by regulating levels of TFAM, a key regulator of mitochondrial function, in the adipose tissue. When nutrients are abundant, high TOR activity suppresses TFAM, lowering mitochondrial bioenergetic activity and ...
Shrivani Sriskanthadevan‐Pirahas, Shahoon Khan, Abhishek Sharma, Byoungchun Lee, Savraj S. Grewal   +4 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

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

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Atomic Fabrication of 2D Materials Using Electron Beams Inside an Electron Microscope

Nanomaterials
Two-dimensional (2D) materials have garnered increasing attention due to their unusual properties and significant potential applications in electronic devices.
Mingrui Zhou, Wei Zhang, Jinyi Sun, Fuqiang Chu, Guocai Dong, Meng Nie, Tao Xu, Litao Sun   +7 more
doaj   +1 more source

Effect of carbon quantum dots on the photo‐absorption, photo‐response and photoelectrochemical performance of KNb3O8 film photoelectrode

Micro & Nano Letters, 2021
The KNb3O8 crystals and carbon quantum dots were synthesized via hydrothermal reaction method, their crystal structural and morphological properties were investigated by X‐ray diffraction, scanning electron microscope and transmission electron microscope,
Xiaobin Liu, Tianjian Tan, Wenxiu Que, Huanfu Zhou, Kangguo Wang   +4 more
doaj   +1 more source