Results 71 to 80 of about 6,743,570 (297)

X-RAY SPECTRAL ANALYSIS IN X-RAY FLUORESCENCE IMAGING FOR BREAST CANCER DETECTION [PDF]

, 2016
The knowledge of X-ray spectrum plays a major role in exploiting and optimizing the X-ray utilizations, especially in biomedical application fields.
Ren, Liqiang
core  

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
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

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

FEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty, Kelsi R. Hall, Zachary D. Tillett, Liam S. Turk, James S. Davies, Michael J. Currie, Hamish G. Brown, Sepideh Valimehr, Peter D. Mace, Andrew E. Whitten, Santosh Panjikar, Eric Hanssen, Rachel A. North, Renwick C.J. Dobson   +13 more
wiley   +1 more source

Avidin is evolutionarily conserved in fish but dispensable for development and resistance against Streptococcus agalactiae in zebrafish

FEBS Open Bio, EarlyView.
The presence of biotin‐binding avidin proteins in fish and their biological significance are poorly characterized. We cataloged fish avidins and demonstrate that they are widely present and evolutionarily conserved. We created avd knockout zebrafish and show that zebavidin is dispensable for development and that resistance of avd knockout embryos in ...
Anni K. Saralahti, Markus J. T. Ojanen, Mataleena Parikka, Otto Kauko, Mika Rämet, Vesa P. Hytönen   +5 more
wiley   +1 more source

Radiochemical Analysis by High Sensitivity Micro X-Ray Fluorescence Detection [PDF]

, 2006
The primary objective of the project was to develop a novel dual-optic x-ray fluorescence instrument capable of doing radiochemical analysis of high-level radioactive wastes at DOE sites such as Savannah River Site and Hanford ...
Gao, Ning
core   +1 more source

X-ray fluorescence microscopy of olfactory receptor neurons

, 2022
We report a x-ray fluorescence microscopy study of cells and tissues from the olfactory system of Xenopus laevis. In this experiment we focus on sample preparation and experimental issues, and present first results of fluorescence maps of the elemental ...
Herbst, J., T Salditt, ; 1Institute for X-ray Physics, Georg-August-University, Friedrich-Hund-Pl. 1, 37077 Göttingen, Germany, J Herbst, ; 1Institute for X-ray Physics, Georg-August-University, Friedrich-Hund-Pl. 1, 37077 Göttingen, Germany, Breunig, E., D Schild, ; 2Department of Molecular Neurophysiology, Georg-August University Göttingen, Germany, T Dučić, ; 1Institute for X-ray Physics, Georg-August-University, Friedrich-Hund-Pl. 1, 37077 Göttingen, Germany, Salditt, Tim, E Breunig, ; 2Department of Molecular Neurophysiology, Georg-August University Göttingen, Germany, Dučić, T., Nováková, E., Susini, J., E Nováková, ; 1Institute for X-ray Physics, Georg-August-University, Friedrich-Hund-Pl. 1, 37077 Göttingen, Germany, R Tucoulu, ; 3European Synchrotron Radiation Facility ESRF, 6 rue Jules Horowitz, 38043 Grenoble, France, Schild, D., J Susini, ; 3European Synchrotron Radiation Facility ESRF, 6 rue Jules Horowitz, 38043 Grenoble, France, Tucoulu, R.   +15 more
core   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source

Challenging X-ray Fluorescence Applications for Environmental Studies at XLab Frascati

Condensed Matter, 2018
In this work, we will report applications of the total external X-ray fluorescence (TXRF) station, a prototype assembled at the XLab Frascati laboratory (XlabF) at the INFN National Laboratories of Frascati (INFN LNF).
Giorgio Cappuccio, Giannantonio Cibin, Sultan B. Dabagov, Alfredo Di Filippo, Gianluca Piovesan, Dariush Hampai, Valter Maggi, Augusto Marcelli   +7 more
doaj   +1 more source