Results 71 to 80 of about 2,592,085 (298)

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

Biomedical x-ray imaging with a GaAs photon-counting detector: A comparative study

open access: yesAPL Photonics, 2020
Photon-counting detectors provide several potential advantages in biomedical x-ray imaging including fast and readout noise free data acquisition, sharp pixel response, and high dynamic range.
J. Scholz   +8 more
doaj   +1 more source

Quantum imaging with a photon counting camera

open access: yesScientific Reports, 2022
Classical light sources emit a randomly-timed stream of individual photons, the spatial distribution of which can be detected with a camera to form an image.
O. Wolley   +4 more
semanticscholar   +1 more source

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

open access: yesFEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee   +3 more
wiley   +1 more source

Effect of terahertz irradiation on DNA damage repair in living cells

open access: yesFEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno   +3 more
wiley   +1 more source

Development of a non-invasive method to detect pericellular spatial oxygen gradients using FLIM [PDF]

open access: yes, 2011
PhDExtracellular oxygen concentrations affect cellular metabolism and influence tissue function. Detection methods for these extracellular oxygen concentrations currently have poor spatial resolution and are frequently invasive.
Hosny, Neveen Amera
core   +4 more sources

Advanced Imaging of Shunt Valves in Cranial CT Scans with Photon-Counting Scanner

open access: yesTomography
This brief report aimed to show the utility of photon-counting technology alongside standard cranial imaging protocols for visualizing shunt valves in a patient’s cranial computed tomography scan.
Anna Klempka   +4 more
doaj   +1 more source

Gluing Lidar Signals Detected in Analog-to-Digital and Photon Counting Modes

open access: yesEPJ Web of Conferences, 2016
Lidar is one of the most effective tools for atmospheric remote sensing. For a ground-based lidar system, the backscattered light usually has large dynamic range.
Feng Chang-Zhong   +3 more
doaj   +1 more source

Nondestructive photon counting in waveguide QED

open access: yesPhysical Review Research, 2020
Number-resolving single-photon detectors represent a key technology for a host of quantum optics protocols, but despite significant efforts, state-of-the-art devices are limited to few photons.
Daniel Malz, J. Ignacio Cirac
doaj   +1 more source

Three-Dimensional Laser Imaging Based on a Photon-Counting Avalanche Photodiode Array [PDF]

open access: yesEPJ Web of Conferences, 2020
Photon-counting detector array is very desired for high-resolution laser imaging based on direct time-of-flight measurement. Such systems have potential applications in remote sensing with long distances. We will perform three-dimensional imaging using a
Ge Peng   +6 more
doaj   +1 more source

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