Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Brusnichkin, A."'
Autor:
D. A. Nedosekin, Anton V. Brusnichkin, Elena F. Shevtsova, Vladimir P. Zharov, Ekaterina I. Galanzha, Yuri A. Vladimirov, Mikhail A. Proskurnin
Publikováno v:
Journal of Biophotonics. 3:791-806
Light-absorbing endogenous cellular proteins, in particular cytochrome c, are used as intrinsic biomarkers for studies of cell biology and environment impacts. To sense cytochrome c against real biological backgrounds, we combined photothermal (PT) t
Autor:
Mikhail A. Proskurnin, Vladimir P. Zharov, Anton V. Brusnichkin, Yu. A. Vladimirov, D. A. Nedosekin, E. Yu. Gleb, D. O. Lapotko, E. S. Ryndina
Publikováno v:
Moscow University Chemistry Bulletin. 64:45-54
Desoxyhemoglobin, oxyhemoglobin, carboxyhemoglobin, methemoglobin, cyanohemoglobin, and hemichrome are determined using thermal-lens spectrometry, with the detection limits at the level of 10−8 M/l (2–5 mcg/l depending on hemoglobin species). Sig
Autor:
Andreyan N. Osipov, Mikhail A. Proskurnin, E. V. Proskurnina, Yu. A. Vladimirov, Anton V. Brusnichkin, Artem Marikutsa
Publikováno v:
Moscow University Chemistry Bulletin. 63:338-342
Spectrophotometric and thermal lens measurements showed that cw laser beam (450–530 nm, up to 100 mW) does not affect the absorption band of cytochrome c. Therefore, thermal lensing is used for determining cytochrome c (III) (c min = 1 × 10−7 mo
Publikováno v:
Applied Spectroscopy. 61:1191-1201
An approach for mode-mismatched two-beam (pump–probe) photothermal lens detection of multipoint light-absorbing targets in solution (e.g., gold nanoparticles) is developed for continuous-wave intensity-modulated laser-excitation mode. A description
Publikováno v:
Analytical and Bioanalytical Chemistry. 375:1038-1044
Based on the optimized spectrophotometric determination of pyrogens (of various classes ( p-aminophenol and endotoxins), thermal lensing was applied to the determination of these substances at the submicrogram level. The limit of detection of p-amino
Publikováno v:
Review of Scientific Instruments. 74:506-508
The conditions of spectrophotometric determination of lipopolysaccharides (LPS) by methylene blue dye were proposed. The limit of detection of LPS is 100 ng/ml. The conditions of spectrophotometric determination of LPS with Stains-all were proposed,
Autor:
Andrei Y. Luk'yanov, D. A. Nedosekin, Anton V. Brusnichkin, Mikhail A. Proskurnin, Sergei A. Eremin
Publikováno v:
Applied spectroscopy. 64(8)
4-Aminophenol was selected as a model hapten for thermal-lens detection in a heterogeneous indirect immunoassay for small organic compounds. The assay is based on the competition of the free hapten and 4-aminophenol labeled with tetramethyl rhodamine
Autor:
A. V. Brusnichkin, E. V. Proskurnina, Yu. A. Vladimirov, A. A. Novikov, D. Yu. Izmailov, Valerian E. Kagan, Andreyan N. Osipov
Publikováno v:
Biochemistry. Biokhimiia. 71(9)
In this work, the actions of bovine heart cardiolipin, synthetic tetraoleyl cardiolipin, and a nonspecific anionic detergent sodium dodecyl sulfate (SDS) on cytochrome c (Cyt c) peroxidase activity recorded by chemiluminescence in the presence of lum
Autor:
A. V. Brusnichkin, A. N. Osipov, D. Yu. Izmailov, Valerian E. Kagan, A. A. Novikov, E. V. Proskurnina, Yu. A. Vladimirov
Publikováno v:
Biochemistry. Biokhimiia. 71(9)
In this work, the effect of liposomes consisting of tetraoleyl cardiolipin and dioleyl phosphatidylcholine (1 : 1, mol/mol) on the rate of three more reactions of Cyt c heme with H2O2 was studied: (i) Cyt c (Fe2+) oxidation to Cyt c (Fe3+), (ii) Fe..
Autor:
Andrey V. Fokin, Anton V. Brusnichkin, N. V. Orlova, Mikhail A. Proskurnin, Oleg Ovchinnikov, S. V. Egerev
Publikováno v:
SPIE Proceedings.
Pyrogens being introduced intravenously increase body temperature that leads to hazardous consequences and even to lethal outcome. One of the widespread pyrogen systems is presented by suspensions composed of bacterial endotoxins (or lypopolysacchari