Results 51 to 60 of about 1,203,995 (286)

Comparing image quality of synchrotron and laboratory nano-CT scans: a round robin study

open access: yesJournal of Synchrotron Radiation
This study presents a comprehensive comparison of image quality between synchrotron-based and laboratory-based nano-computed tomography (nano-CT) systems, using a standardized 3D test phantom composed of monodisperse silica spheres.
Simon Wittl   +6 more
doaj   +1 more source

Photonic-chip assisted correlative light and electron microscopy

open access: yesCommunications Biology, 2020
Tinguely et al. develop a photonic chip-based correlative light-electron microscopy system to generate co-registered multi-modal total internal reflection fluorescence microscopy (TIRF) and electron microscopy (EM) images of biological samples at ...
Jean-Claude Tinguely   +8 more
doaj   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +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

Formation of Laser‐Induced Periodic Surface Structures on Titanium Alloy Using a Picosecond Laser: Dependence on Fluence and Number of Laser Pulses

open access: yesAdvanced Materials Interfaces
Laser ablation is a widely used technique for the fabrication of periodic structures on solids to manipulate their surface properties. A fundamental challenge in the formation of laser‐induced periodic surface structures (LIPSS) is ascertaining the ...
Iana Fomicheva   +6 more
doaj   +1 more source

Correlative Microscopy in Life and Materials Sciences

open access: yesEuropean Journal of Histochemistry, 2017
The conference aims to update participants on innovative microscopic equipment which, by correlating the various features of optical and electron microscopy, can maximize the potential applications of morphological and ultrastructural methods.
Stefania Meschini
doaj   +1 more source

Image correlation microscopy for uniform illumination [PDF]

open access: yesJournal of Microscopy, 2009
SummaryImage cross‐correlation microscopy is a technique that quantifies the motion of fluorescent features in an image by measuring the temporal autocorrelation function decay in a time‐lapse image sequence. Image cross‐correlation microscopy has traditionally employed laser‐scanning microscopes because the technique emerged as an extension of laser ...
T R, Gaborski   +4 more
openaire   +2 more sources

Liver organoids: modelling complexity in homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

Quantitative detection of organic thin films on opaque surfaces utilizing Coherent anti-Stokes Raman Scattering Imaging

open access: yesMethods in Microscopy
Thin film contamination on critical surfaces is a significant cause of failure in different industries, including semiconductor, optical and medical manufacturing.
Naser Julian   +4 more
doaj   +1 more source

White-light emission from yttrium iron garnet (YIG)

open access: yesAPL Materials, 2023
Single-phase phosphors that emit broadband white-light are needed for white-light-emitting diodes (wLEDs) to reach their full potential. However, it is challenging to achieve broad white-light emission from single-phase materials.
Anju Saroha   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy