Персона:
Набиев, Игорь Руфаилович

Научные группы

Научная группа

Международная лаборатория гибридных фотонных наноматериалов научного центра наноинженерии фотонных материалов для биомедицины и оптоэлектроники (НАНО-ФОТОН)

Организационные подразделения

Организационная единица

Инженерно-физический институт биомедицины

Цель ИФИБ и стратегия развития – это подготовка высококвалифицированных кадров на базе передовых исследований и разработок новых перспективных методов и материалов в области инженерно-физической биомедицины. Занятие лидерских позиций в биомедицинских технологиях XXI века и внедрение их в образовательный процесс, что отвечает решению практикоориентированной задачи мирового уровня – диагностике и терапии на клеточном уровне социально-значимых заболеваний человека.

Статус

Руководитель научной группы "НАНО-ФОТОН"

Фамилия

Набиев

Имя

Игорь Руфаилович

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Теперь показываю 1 - 10 из 29

Только метаданные
Energy transfer mechanisms in nanobiohybrid structures based on quantum dots and photosensitive membrane proteins
(2016) Sizova, S. V.; Oleinikov, V. A.; Bouchonville, N.; Molinari, M.; Samokhvalov, P. S.; Sukhanova, A.; Nabiev, I.; Суханова, Алена Владимировна; Набиев, Игорь Руфаилович; Олейников, Владимир Александрович
The integration of novel nanomaterials with highly functional biological molecules has numerous advanced applications, including optoelectronics, biosensing, imaging, and energy harvesting. This review summarizes recent progress in understanding the mechanisms of energy transfer between semiconductor nanocrystal (so-called quantum dots [QDs]) and photosensitive proteins in heterostructures, such as hybrids of semiconductor nanocrystals with purple membranes containing bacteriorhodopsin (bR) or with photosynthetic reaction centers (RCs). Understanding of these mechanisms should enable prediction of the possible ways to improve the biological function of biomolecules by means of their assembling with QDs and develop novel functional materials with controlled photonic properties and applications. The possible mechanisms of energy transfer from QDs to photochromic biomolecules are discussed and correlated with experimental data. The principles of hybrid structures engineering, donor/acceptor parameters aﬀecting both energy transfer eﬃciency and biological function, and functionality of these hybrid structures are described. New nanobiohybrid materials are shown to have advanced implications for optoelectronics, photonics, and photovoltaics due to the ability of nanocomponents of these materials for eﬃcient energy harvesting, conversion, and transfer of additional energy to Biosystems, thus making them working more eﬃciently.
Только метаданные
Optical Properties of Quantum Dots with a Core–Multishell Structure
(2019) Linkov, P.; Samokhvalov, P.; Vokhmintsev, K.; Zvaigzne, M.; Krivenkov, V. A.; Nabiev, I.; Самохвалов, Павел Сергеевич; Набиев, Игорь Руфаилович
© 2019, Pleiades Publishing, Inc. In the last decade, colloidal semiconductor nanocrystals (quantum dots) have been not only studied fundamentally but also applied in photovoltaics, optoelectronics, and biomedicine. Beginning with simple approaches to the deposition of protective shells, e.g., ZnS on CdSe cores, searches for ways to increase the quantum yield of photoluminescence of quantum dots have resulted now in the development of new types of quantum dots characterized not only by record high extinction coefficients but also by high photoluminescence quantum yields. In this work, the optical properties of core–multishell quantum dots have been analyzed. These quantum dots have been specially designed to reach the maximum possible localization of excited charge carriers inside luminescent cores, which makes it possible to reach a photoluminescence quantum yield close to 100%. Core–multishell quantum dot samples with a shell thickness of 3–7 monolayers have been fabricated. Changes in the characteristics of optical transitions in such quantum dots with an increase in the number of layers of the shell have been studied. The effect of the thickness of the shell on the optical properties of prepared quantum dots has been analyzed. In particular, analysis of photoluminescence lifetimes of such quantum dots has revealed a possible alternative mechanism of radiation of core–multishell quantum dots based on the slow charge carrier transfer from the excited outer layer of the CdS shell to the CdSe core.
Только метаданные
Spectral and Spatial Characteristics of the Electromagnetic Modes in a Tunable Optical Microcavity Cell for Studying Hybrid Light-Matter States
(2019) Moehalov, K. E.; Dovzhenko, D. S.; Vaskan, I. S.; Rakovich, Yu. P.; Nabiev, I. R.; Набиев, Игорь Руфаилович
Studies of resonance interaction between matter and localized electromagnetic field in a cavity have recently attracted much interest because they offer the possibility of controllably modifying some of the fundamental material properties. However, despite the large number of such studies, these is no universal approach that would allow investigation of sets of different samples with wide variation of the main experimental parameters of the optical modes. In this work, the main optical parameters of a previously developed universal tunable microcavity cell, i.e., the Q factor and mode volume, as well as their dependence on the characteristics of cavity mirrors and spacing between them, are analyzed. The results obtained will significantly expand the scope of applications of resonance interaction between light and matter, including such effects as the enhancement of Raman scattering, long-range resonance nonradiative energy transfer, and modification of chemical reaction rates.
Только метаданные
Scanning Near-Field Optical Nanospectrophotometry: a New Method for Nanoscale Measurements of the Absorption Spectra of Single Nanoobjects
(2019) Mochalov, K. E.; Solovyeva, D. O.; Vaskan, I. S.; Nabiev, I. R.; Набиев, Игорь Руфаилович
© 2019, Pleiades Publishing, Ltd. Abstract: A new experimental method for nanoscale measurements of the absorption spectra of single nanoobjects has been developed based on scanning near-field optical microspectroscopy (SNOM) and nanospectrophotometry (NSP). The main distinctive feature of the proposed SNOM-NSP technique consists in depositing a sample onto a coverglass followed by its probing in the total internal reflection spectroscopy mode. This approach allows the number of analyzed samples to be significantly increased and provides the possibility of combining measurements with other optical techniques. The proposed SNOM-NSP method has been successfully used for studying single plasmonic nanoparticles and their complexes with Rhodamine 6G dye.
Только метаданные
Remarkably enhanced photoelectrical efficiency of bacteriorhodopsin in quantum dot – Purple membrane complexes under two-photon excitation
(2019) Krivenkov, V.; Samokhvalov, P.; Nabiev, I.; Самохвалов, Павел Сергеевич; Набиев, Игорь Руфаилович
© 2019 Elsevier B.V. The photosensitive protein bacteriorhodopsin (bR)has been shown to be a promising material for optoelectronic applications, but it cannot effectively absorb and utilize light energy in the near-infrared (NIR)region of the optical spectrum. Semiconductor quantum dots (QDs)have two-photon absorption cross-sections two orders of magnitude larger than those of bR and can effectively transfer the up-converted energy of two NIR photons to bR via the Förster resonance energy transfer (FRET). In this study, we have engineered a photoelectrochemical cell based on a hybrid material consisting of QDs and bR-containing purple membranes (PMs)of Halobacterium salinarum and demonstrated that this cell can generate an electrical signal under the two-photon laser excitation. We have shown that the efficiency of light conversion by the PM–QD hybrid material under two-photon excitation is up to 4.3 times higher than the efficiency of conversion by PMs alone. The QD integration into the bR-containing PMs significantly improves the bR capacity for utilizing light upon two-photon laser excitation, thus paving the way to the engineering of biologically inspired hybrid NIR nonlinear optoelectronic elements. The nonlinear nature of two-photon excitation may provide considerable advantages, such as a sharp sensitivity threshold and the possibility of precise three-dimensional location of excitation in holography and optical computing.
Только метаданные
Conversion of Semiconductor Nanoparticles to Plasmonic Materials by Targeted Substitution of Surface-Bound Organic Ligands
(2019) Samokhvalov, P. S.; Volodin, D. O.; Bozrova, S. V.; Dovzhenko, D. S.; Zvaigzne, M. A.; Lin'kov, P. A.; Nifontova, G. O.; Petrova, I. O.; Sukhanova, A. V.; Nabiev, I. R.; Самохвалов, Павел Сергеевич; Нифонтова, Галина Олеговна; Суханова, Алена Владимировна; Набиев, Игорь Руфаилович
© 2019, Pleiades Publishing, Ltd.Abstract: Plasmonic nanoparticles have become a popularly accepted research tool in optoelectronics, photonics, and biomedical applications. The relatively recently appearing semiconductor plasmonic nanoparticles, as opposed to metal ones, are characterized by infrared plasmonic optical transitions and their application has a great future. In this work, the possibility of conversion of semiconductor (excitonic) fluorescence nanocrystals, i.e., quantum dots of the CuInS2 composition, to plasmonic nanoparticles by postsynthetic treatment without changes in the chemical composition of inorganic part of the nanocrystals was demonstrated for the first time ever.
Только метаданные
Rabi splitting of broadband emission of strongly coupled organic dye excitons in tunable optical microcavity
(2019) Dovzhenko, D.; Vaskan, I.; Kriukova, I.; Rakovich, Y.; Nabiev, I.; Крюкова, Ирина Сергеевна; Набиев, Игорь Руфаилович
Только метаданные
Direct Demonstration of Biexciton Quantum Yield Enhancement in an Individual Quantum Dot Coupled with Gold Nanoparticles in a Thin-film Hybrid Material
(2019) Krivenkov, V.; Samokhvalov, P.; Nabiev, I.; Rakovich, Y.; Самохвалов, Павел Сергеевич; Набиев, Игорь Руфаилович
Только метаданные
Physical Interactions of Biopolymers with Nanoparticles
(2019) Kosmyntseva, A. V.; Petrova, I. O.; Rakovich, Y. P.; Sukhanova, A. V.; Nabiev, I. R.; Набиев, Игорь Руфаилович
Using fluorescence resonance energy transfer, the physical interaction of nanoparticles with biopolymers is studied by the example of the interaction of quantum dots (energy donor) with two-chain oligonucleotides labeled with a fluorescent organic dye BDP TR (energy acceptor). The high-efficiency resonance energy transfer from quantum dots to an organic dye not only makes it possible to study the dependence of the transfer efficiency on the donor-acceptor molar ratio but also represents an efficient tool for studying the interactions of oligonucleotides of different structures with nanoscale objects.
Только метаданные
Two-photon-activated light energy conversion in quantum dot-purple membrane hybrid material
(2019) Krivenkov, V. A.; Samokhvalov, P. S.; Nabiev, I.; Самохвалов, Павел Сергеевич; Набиев, Игорь Руфаилович
The photosensitive protein bacteriorhodopsin (bR) has been shown to be a promising material for optoelectronic and photovoltaic applications, but it cannot effectively absorb and utilize light energy in the near-infrared (NIR) region of the optical spectrum. Semiconductor quantum dots (QDs) have two-photon absorption cross-sections two orders of magnitude larger than those of bR and can effectively transfer the up-converted energy of two NIR photons to bR via the Forster resonance energy transfer (FRET). In this study we fabricated a hybrid material in the form of an aqueous solution of electrostatically bound complexes of QDs and purple membranes (PMs) containing bR. Efficient FRET from QDs to bR was observed in these complexes under selective two-photon excitation of QDs. Then, we fabricated a photoelectrochemical cell operating in the NIR spectral region. Measurement of the photoelectrical signals from the cell containing pure PMs, or QD-PM hybrid material has shown that the light conversion in the QD-PM hybrid material with 3:1 bR-to-QD molar ratio is more efficient than in the material with 20:1 bR-to-QD molar ratio. The results of this study may extend the use of bioinspired hybrid materials in optoelectronics, holography, and bioenergetics under the conditions of nonlinear excitation.