Results 71 to 80 of about 511,988 (302)

Multielement analysis in beer cans using X-ray fluorescence

Brazilian Journal of Radiation Sciences, 2022
In this study the elemental concentrations of twenty-three beer cans of different brands and nationalities were determined using X-ray fluorescence technique.
Gabriel da cruz ferreira, Ramon Silva dos Santos, Hamilton Santos Gama Filho, Davi Ferreira de Oliveira, Catarine Canellas Gondim Leitão, Joaquim Teixeira de Assis, Marcelino José dos Anjos   +6 more
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

X-ray fluorescence spectra of metals excited below threshold

, 2003
X-ray scattering spectra of Cu and Ni metals have been measured using monochromatic synchrotron radiation tuned from far above to more than 10 eV below threshold.
Föhlisch, A., Magnuson, M., Mårtensson, N., Nilsson, A., Rubensson, J. -E., Wassdahl, N.   +5 more
core   +1 more source

X-ray fluorescence with synchrotron radiation [PDF]

Ultramicroscopy, 1988
The use of synchrotron radiation for X-ray fluorescence has several advantages over the use of other conventional X-ray sources. The principles of synchrotron radiation and methods for applying synchrotron radiation to the X-ray fluorescence measurements of trace elements are discussed.
Jones, K. W., Gordon, B. M., Hanson, A. L., Pounds, J. G., Schidlovsky, G.   +4 more
openaire   +2 more sources

Proteasomal degradation of intracellularly expressed Amblyomin‐X limits suicide gene therapy potential in melanoma cells

FEBS Open Bio, EarlyView.
This study explores the feasibility of expressing the antitumoral protein Amblyomin‐X through a suicide gene therapy approach and investigates its intracellular fate after gene delivery. Although the gene is efficiently expressed, melanoma cells rapidly degrade the Amblyomin‐X protein via proteasome activity.
Victor Dal Posolo Cinel, Carlos DeOcesano Pereira, Aline Ramos Maia Lobba, Melissa Regina Fessel, Ana Marisa Chudzinski‐Tavassi   +4 more
wiley   +1 more source

Correlative single-cell hard X-ray computed tomography and X-ray fluorescence imaging

Communications Biology
X-ray computed tomography (XCT) and X-ray fluorescence (XRF) imaging are two non-invasive imaging techniques to study cellular structures and chemical element distributions, respectively.
Zihan Lin, Xiao Zhang, Purbasha Nandi, Yuewei Lin, Liguo Wang, Yong S. Chu, Timothy Paape, Yang Yang, Xianghui Xiao, Qun Liu   +9 more
doaj   +1 more source

Monte Carlo Simulation for Polychromatic X-ray Fluorescence Computed Tomography with Sheet-Beam Geometry [PDF]

, 2017
X-ray fluorescence computed tomography based on sheet-beam can save a huge amount of time to obtain a whole set of projections using synchrotron. However, it is clearly unpractical for most biomedical research laboratories. In this paper, polychromatic X-
Chen, Mianyi, Deng, Luzhen, He, Peng, Jiang, Shanghai, Wei, Biao   +4 more
core   +3 more sources

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS 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, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

Qualitative determination of the constituents of hydraulic cements by X ray fluorescence

Materiales de Construccion, 1968
Not ...
J. L. Sagrera
doaj   +1 more source

Self-absorption correction on 2D X-ray fluorescence maps

Scientific Reports, 2023
X-ray fluorescence mapping (XRF) is a highly efficient and non-invasive technique for quantifying material composition with micro and nanoscale spatial resolutions.
Mingyuan Ge, Hanfei Yan, Xiaojing Huang, Yong S. Chu   +3 more
doaj   +1 more source