Results 21 to 30 of about 816,424 (266)

Prism Design for Spectral Flow Cytometry

Micromachines, 2023
Flow cytometers are instruments used for the rapid quantitative analysis of cell suspension. Traditional flow cytometry uses multi-channel filters to detect fluorescence, whereas full-spectrum fluorescence based on dispersion detection is a more ...
Zixi Chao, Yong Han, Zeheng Jiao, Zheng You, Jingjing Zhao   +4 more
doaj   +1 more source

Molecular Level Structure of Biodegradable Poly(Delta-Valerolactone) Obtained in the Presence of Boric Acid

Molecules, 2018
In this study, low molecular weight poly(δ-valerolactone) (PVL) was synthesized through bulk-ring openings polymerization of δ-valerolactone with boric acid (B(OH)3) as a catalyst and benzyl alcohol (BnOH) as an initiator.
Khadar Duale, Magdalena Zięba, Paweł Chaber, Dany Jeanne Di Fouque, Antony Memboeuf, Cristian Peptu, Iza Radecka, Marek Kowalczuk, Grażyna Adamus   +8 more
doaj   +1 more source

Synthesis of Deuterated Methylphosphonic Acid Derivatives for Use as Standard Compounds in the Analysis of Toxic Chemicals

Вестник войск РХБ защиты, 2021
One of the ways to ensure high reliability of detection, identification and accuracy of quantitative determination of toxic chemicals (TC) in environmental and biomedical samples by gas and liquid chromatography-mass spectrometry methods is to use ...
V. А. Yashkir, V. I. Krylov, I. I. Krylov, A. V. Brown, D. V. Oreshkin, I. V. Rybalchenko, V. N. Fateenkov   +6 more
doaj   +1 more source

Effect of DFPP on Ferroptosis in Peripheral Blood CD14+ Monocytes of Hyperlipidemic Patients Involving the ACSL4/LPCAT3/ALOX5 Pathway

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Hyperlipidemia is a major risk factor for atherosclerotic cardiovascular disease (ASCVD). Although statins are the cornerstone of lipid‐lowering therapy, their use may be limited in some patients by adverse effects. This study evaluated the possible impact of non‐drug treatment using double‐filtration plasmapheresis (DFPP) on CD14+
Yun Cheng, Lan Li, Qingmei Yang, Meipeng Wu   +3 more
wiley   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Behaviour of Zinc Complexes and Zinc Sulphide Nanoparticles Revealed by Using Screen Printed Electrodes and Spectrometry

Sensors, 2013
In this study, we focused on microfluidic electrochemical analysis of zinc complexes (Zn(phen)(his)Cl2, Zn(his)Cl2) and ZnS quantum dots (QDs) using printed electrodes.
Lukas Nejdl, Branislav Ruttkay-Nedecky, Jiří Kudr, Monika Kremplova, Natalia Cernei, Jan Prasek, Marie Konecna, Jaromir Hubalek, Ondrej Zitka, Jindrich Kynicky, Pavel Kopel, Rene Kizek, Vojtech Adam   +12 more
doaj   +1 more source

Iron Forms Fe(II) and Fe(III) Determination in Pre-Roman Iron Age Archaeological Pottery as a New Tool in Archaeometry

Molecules, 2021
This article presents studies on iron speciation in the pottery obtained from archaeological sites. The determination of iron forms Fe(II) and Fe(III) has been provided by a very simple test that is available for routine analysis involving the technique ...
Lidia Kozak, Andrzej Michałowski, Jedrzej Proch, Michal Krueger, Octavian Munteanu, Przemyslaw Niedzielski   +5 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Spectrometric and Voltammetric Analysis of Urease – Nickel Nanoelectrode as an Electrochemical Sensor

Sensors, 2007
Urease is the enzyme catalyzing the hydrolysis of urea into carbon dioxide andammonia. This enzyme is substrate-specific, which means that the enzyme catalyzes thehydrolysis of urea only.
Rene Kizek, Josef Zehnalek, Martin Adamek, Katerina Klosova, Ales Horna, Libuse Trnkova, Michal Masarik, Dalibor Huska, Olga Krystofova, Vojtech Adam, Jan Hradecky, Jaromir Hubalek   +11 more
doaj   +1 more source