Results 41 to 50 of about 3,881,838 (283)

Cutaneous collagenous vasculopathy: light and transmission electron microscopy [PDF]

open access: yesAnais Brasileiros de Dermatologia, 2019
Cutaneous collagenous vasculopathy is a rare acquired idiopathic microangiopathy characterized by progressive development of diffuse asymptomatic telangiectasias and histologically by accumulation of collagen type IV around the affected vessels.
Debora Sarzi Sartori   +3 more
doaj   +1 more source

From zirconia to yttria: Sampling the YSZ phase diagram using sputter-deposited thin films

open access: yesAIP Advances, 2016
Yttria-stabilized zirconia (YSZ) thin films with varying composition between 3 mol% and 40 mol% have been prepared by direct-current ion beam sputtering at a substrate temperature of 300 °C, with ideal transfer of the stoichiometry from the target to the
Thomas Götsch   +4 more
doaj   +1 more source

Characterization of metal-organic frameworks by transmission electron microscopy

open access: yesAdvances in Physics: X, 2022
To address the increasing energy consumption and serious environmental problems, it is critical to develop efficient and clean energy conversion and storage devices.
Jialin Zhang, Ningyan Cheng, Binghui Ge
doaj   +1 more source

High-resolution low-dose scanning transmission electron microscopy

open access: yes, 2010
During the past two decades instrumentation in scanning transmission electron microscopy (STEM) has pushed toward higher intensity electron probes to increase the signal-to-noise ratio of recorded images.
Stahlberg, Henning   +4 more
core   +1 more source

Atomic-scale imaging of electron sensitive zeolites with aberration corrected transmission electron microscopy

open access: yesOpen Ceramics, 2023
The spatial resolution of transmission electron microscopes (TEMs) and scanning transmission electron microscopes (STEMs) has been drastically improved by introducing aberration correction.
Kaname Yoshida, Atsushi Nakahira
doaj   +1 more source

Nanostructured, mesoporous Au/TiO2 model catalysts – structure, stability and catalytic properties

open access: yesBeilstein Journal of Nanotechnology, 2011
Aiming at model systems with close-to-realistic transport properties, we have prepared and studied planar Au/TiO2 thin-film model catalysts consisting of a thin mesoporous TiO2 film of 200–400 nm thickness with Au nanoparticles, with a mean particle size
Matthias Roos   +8 more
doaj   +1 more source

Transmission Electron Microscopy for Tobacco Chloroplast Ultrastructure

open access: yesBio-Protocol, 2015
The chloroplast is the site of photosynthesis that enabled and sustains aerobic life on Earth. Chloroplasts are relatively large organelles with a diameter of ~5 μm and width of ~2.5 μm, and so can be readily analysed by electron microscopy.
lina Yin   +3 more
doaj   +1 more source

Characterization of nanomaterials with transmission electron microscopy [PDF]

open access: yes, 2016
The field of nanotechnology is about research and development on materials whose at least one dimension is in the range of 1 to 100 nanometers. In recent years, the research activity for developing nano-materials has grown exponentially owing to the fact
Anjum, Dalaver H.
core   +1 more source

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

open access: yesFEBS 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   +4 more
wiley   +1 more source

Sample preparation for nanoanalytical electron microscopy using the FIB lift-out method and low energy ion milling [PDF]

open access: yes, 2006
Thinning specimens to electron transparency for electron microscopy analysis can be done by conventional (2 - 4 kV) argon ion milling or focused ion beam (FIB) lift-out techniques.
Smith, W.   +6 more
core   +1 more source

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