Výsledky vyhledávání - "Fedor Gostev"

Akademický článek

Reversible Photochromic Reactions of Bacteriorhodopsin from Halobacterium salinarum at Femto- and Picosecond Times

Autor: Olga Smitienko, Tatyana Feldman, Ivan Shelaev, Fedor Gostev, Arseniy Aybush, Dmitry Cherepanov, Victor Nadtochenko, Mikhail Ostrovsky

Publikováno v: Molecules, Vol 29, Iss 20, p 4847 (2024)

The operation of bacteriorhodopsin (BR) from the archaeon Halobacterium salinarum is based on the photochromic reaction of isomerization of the chromophore group (the retinal protonated Schiff base, RPSB) from the all-trans to the 13-cis form. The ul

Externí odkaz: https://doaj.org/article/42e0957390ab45199630abcf2eb50999

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Akademický článek

Water-Soluble Products of Photooxidative Destruction of the Bisretinoid A2E Cause Proteins Modification in the Dark

Autor: Alexander Dontsov, Marina Yakovleva, Natalia Trofimova, Natalia Sakina, Alexander Gulin, Arseny Aybush, Fedor Gostev, Alexander Vasin, Tatiana Feldman, Mikhail Ostrovsky

Publikováno v: International Journal of Molecular Sciences, Vol 23, Iss 3, p 1534 (2022)

Aging of the retina is accompanied by a sharp increase in the content of lipofuscin granules and bisretinoid A2E in the cells of the retinal pigment epithelium (RPE) of the human eye. It is known that A2E can have a toxic effect on RPE cells. However

Externí odkaz: https://doaj.org/article/34aa411a95c7474086738b72bea8edd4

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Akademický článek

Ultrafast Quenching of Excitons in the ZnxCd1−xS/ZnS Quantum Dots Doped with Mn2+ through Charge Transfer Intermediates Results in Manganese Luminescence

Autor: Dmitry Cherepanov, Andrei Kostrov, Fedor Gostev, Ivan Shelaev, Mikhail Motyakin, Sergei Kochev, Yuriy Kabachii, Victor Nadtochenko

Publikováno v: Nanomaterials, Vol 11, Iss 11, p 3007 (2021)

For the first time, a specific time-delayed peak was registered in the femtosecond transient absorption (TA) spectra of ZnxCd1−xS/ZnS (x~0.5) alloy quantum dots (QDs) doped with Mn2+, which was interpreted as the electrochromic Stark shift of the b

Externí odkaz: https://doaj.org/article/74d4483e841c4faab5eb98cc993bfc5b

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Akademický článek

Femtosecond Laser Spectroscopy of the Rhodopsin Photochromic Reaction: A Concept for Ultrafast Optical Molecular Switch Creation (Ultrafast Reversible Photoreaction of Rhodopsin)

Autor: Olga Smitienko, Victor Nadtochenko, Tatiana Feldman, Maria Balatskaya, Ivan Shelaev, Fedor Gostev, Oleg Sarkisov, Mikhail Ostrovsky

Publikováno v: Molecules, Vol 19, Iss 11, Pp 18351-18366 (2014)

Ultrafast reverse photoreaction of visual pigment rhodopsin in the femtosecond time range at room temperature is demonstrated. Femtosecond two-pump probe experiments with a time resolution of 25 fs have been performed. The first рump pulse at 500 nm

Externí odkaz: https://doaj.org/article/396321dd64df4d99bcac41c76b547ef7

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Akademický článek

Ultrafast Spectroscopy of Fano-Like Resonance between Optical Phonon and Excitons in CdSe Quantum Dots: Dependence of Coherent Vibrational Wave-Packet Dynamics on Pump Fluence

Autor: Victor Nadtochenko, Nikolay Denisov, Arseniy Aybush, Fedor Gostev, Ivan Shelaev, Andrey Titov, Stanislav Umanskiy, and Dmitry Cherepanov

Publikováno v: Nanomaterials, Vol 7, Iss 11, p 371 (2017)

The main goal of the present work is to study the coherent phonon in strongly confined CdSe quantum dots (QDs) under varied pump fluences. The main characteristics of coherent phonons (amplitude, frequency, phase, spectrogram) of CdSe QDs under the r

Externí odkaz: https://doaj.org/article/a2f11b550ba7486aaed9363516d4819e

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Inverted region in the reaction of the quinone reduction in the A1-site of photosystem I from cyanobacteria

Autor: Dmitry Cherepanov, Arseny Aybush, T. Wade Johnson, Ivan Shelaev, Fedor Gostev, Mahir Mamedov, Victor Nadtochenko, Alexey Semenov

Publikováno v: Photosynthesis Research.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ba07145fb07ddf83b4b3a30619911c2
https://doi.org/10.1007/s11120-023-01020-2

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Donor-acceptor interactions of gold(III) porphyrins with cobalt(II) phthalocyanine: chemical structure of products, their spectral characterization and DFT study

Autor: Nataliya Bichan, Arshak Tsaturyan, Ekaterina Ovchenkova, Nadezhda Kudryakova, Fedor Gostev, Ivan Shelaev, Arseny Aybush, Victor Nadtochenko, Tatyana Lomova

Publikováno v: Dalton transactions (Cambridge, England : 2003). 51(23)

The axial bonding of cobalt(ii) phthalocyanine with gold(iii) porphyrins, the structure, the spectral/electrochemical properties of the resulting donor–acceptor complexes and photoinduced electron transfer in them are studied.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9aff2130ba6ed8491e89a7e6c662561a
https://pubmed.ncbi.nlm.nih.gov/35647909

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Water-Soluble Products of Photooxidative Destruction of the Bisretinoid A2E Cause Proteins Modification in the Dark

Autor: Alexander Dontsov, Marina Yakovleva, Natalia Trofimova, Natalia Sakina, Alexander Gulin, Arseny Aybush, Fedor Gostev, Alexander Vasin, Tatiana Feldman, Mikhail Ostrovsky

Publikováno v: International Journal of Molecular Sciences; Volume 23; Issue 3; Pages: 1534
International Journal of Molecular Sciences, Vol 23, Iss 1534, p 1534 (2022)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e3e7d576fbc3ff38b542f58fdaeef2a
https://pubmed.ncbi.nlm.nih.gov/35163454

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