Персона: Кабашин, Андрей Викторович
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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.
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Руководитель научной группы "Лаборатория «Бионанофотоники"
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Кабашин
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Андрей Викторович
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51 results
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Теперь показываю 1 - 10 из 51
- ПубликацияТолько метаданныеDirect photoacoustic measurement of silicon nanoparticle degradation promoted by a polymer coating(2022) Mashkovich, E. A.; Deryabin, M. S.; Kurin, V. V.; Bakunov, M. I.; Zelepukin, I. V.; Lipey, N. A.; Popov, A. A.; Shipunova, V. O.; Yu. , Griaznova, O.; Nikitin, P. I.; Kabashin, A. V.; Deyev, S. M.; Zvyagin, A. V.; Попов, Антон Александрович; Грязнова, Ольга Юрьевна; Никитин, Петр Иванович; Кабашин, Андрей Викторович; Деев, Сергей Михайлович© 2021 Elsevier B.V.Nanomaterials with controllable biodegradation properties respond to the main challenge of cancer nanomedicine to minimise side effects and maximise the delivery efficacy to tumours. These biodegradation properties vary from clear aqueous solutions to protein-abundant biological fluids. A photoacoustic method suitable for in vitro quantification of highly scattering colloids with optical absorption properties is introduced and demonstrated by determination of the degradation rate of laser-synthesized silicon nanoparticles (Si NPs) in turbid serum solutions. In vitro screening of a variety of polymer surface-coatings of Si NPs revealed a stand-alone property of polyallylamine (PAA) to accelerate the Si NP dissolution. PAA-coated Si NP half-life was measured ∼ 100-min in aqueous solutions and slowed down to ∼ 24 h in serum. As-produced PAA-coated Si NPs appeared suitable for blockade of the mononuclear phagocyte system. Pre-treatment with PAA-Si NPs caused 1.4-times reduced uptake of magnetic particles by human THP-1 cells in vitro and a 13-fold increase of the magnetic particle delivery to the B16-F1 xenograft tumours in vivo. The demonstrated photoacoustic method is believed to facilitate design and screening of biodegradable materials suitable for in vivo applications such as controlled drug release.
- ПубликацияТолько метаданныеPlasmonic Si Au core-satellite nanoparticles prepared by laser-assisted synthesis for photothermal therapy(2021) Al-Kattan, A.; Tselikov, G.; Popov, A. A.; Kabashin, A. V.; Попов, Антон Александрович; Кабашин, Андрей ВикторовичAbstract We describe a laser-assisted methodology for the fabrication of Si@Au core-satellite nanostructures for photothermal therapy applications. The methodology consists in laser ablative synthesis of Si and Au NPs in water/ethanol solutions, followed by a chemical modification of the Si NPs by APTMS and their subsequent decoration by the Au NPs. We show that despite a relatively small size (< 40 nm) the formed core-satellites exhibit a strong plasmonic absorption peak centred around 610 nm and having a large tail over 700 nm overlapping with the first optical window of relative tissue transparency. Being relatively small and exempt of any toxic impurity due to ultraclean laser synthesis, the fabricated nanoparticles promise a major advancement of imaging and phototherapy modalities based on plasmonic properties of nanomatererials.
- ПубликацияТолько метаданныеComparison of pharmacokinetics and biodistribution of laser-synthesized plasmonic Au and TiN nanoparticles(2021) Tselikov, G. I.; Al-Kattan, A.; Bailly, A. -L.; Correard, F.; Popov, A. A.; Zelepukin, I. V.; Tikhonowski, G. V.; Popova-Kuznetsova, E. A.; Klimentov, S. M.; Deyev, S. M.; Kabashin, A. V.; Попов, Антон Александрович; Тихоновский, Глеб Валерьевич; Попова-Кузнецова, Елена Алефтиновна; Климентов, Сергей Михайлович; Деев, Сергей Михайлович; Кабашин, Андрей Викторович© 2021 Institute of Physics Publishing. All rights reserved.Plasmonic nanostructures offer wide range of diagnostic and therapeutic functionalities for biomedical applications. Gold nanoparticles (Au NPs) present one of the most explored nanomaterial in this field, while titanium nitride nanoparticles (TiN NPs) is a new promising nanomaterial with superior plasmonic properties for biomedicine. However conventional chemical techniques for the synthesis of these nanomaterials cannot always match stringent requirements for toxicity levels and surface conditioning. Laser-synthesized Au and TiN NPs offer exceptional purity (no contamination by by-products or ligands) and unusual surface chemistry. Therefore, these NPs present a viable alternative to chemically synthesized counterparts. This work presents comparative analysis of pharmacokinetics and biodistribution of laser-synthesized 20 nm Au and TiN NPs under intravenous administration in mice model. Our data show that Au NPs and bare TiN NPs are rapidly eliminated from the blood circulation and accumulate preferentially in liver and spleen, while coating of TiN NPs by hydrophilic polymer polyethylene glycol (PEG) significantly prolongates blood circulation time and improves delivery of the NPs to tumor. We finally discuss potential applications of laser synthesized Au NPs in SERS, SEIRA and electrocatalysis, while TiN nanoparticles are considered as promising agents for photothermal therapy and photoacoustic imaging.
- ПубликацияТолько метаданныеLaser-ablative synthesis of nanomaterials for nuclear and radiative medicine applications(2022) Tikhonowski, G. V.; Popov, A. A.; Zelepukin, I.; Popova-Kuznetsova, E.; Dombrovska, Y.; Deyev, S. M.; Zavestovskaya, I. N.; Klimentov, S. M.; Prasad, P. N.; Kabashin, A. V.; Тихоновский, Глеб Валерьевич; Попов, Антон Александрович; Попова-Кузнецова, Елена Алефтиновна; Деев, Сергей Михайлович; Завестовская, Ирина Николаевна; Климентов, Сергей Михайлович; Кабашин, Андрей ВикторовичNewly emerging nanomaterials promise a major advancement of methods of nuclear and radiative medicine for cancer treatment, as they can be used as carriers of diagnostic or therapeutic radionuclides, contrast agents in nuclear imaging modalities (PET, SPECT) or sensitizers of radiative therapies (X-ray, ion beams, etc.). However, nanotechnology-based approaches have reported a limited success so far due to a lack of suitable functional nanoformulations, which are safe, non-toxic, excretable from the body and have favorable pharmacokinetics for effective accumulation in the tumor. As follows from the results of our on-going research activities, many of the above-stated problems can we solved by the employment of nanomaterials fabricated by clean laser-ablative synthesis. Here, we review our recent data on some promising nanomaterials, prepared by this method, including biodegradable silicon (Si) nanoparticles (NPs), Sm-152-enriched samarium oxide NPs, and elemental bismuth (Bi) NPs, which can be used either as carriers/agents in radionuclide therapy, or sensitizers in radiative diagnostics or therapy. Advantages of proposed approach include exceptional purity and flexibility in synthesizing of NPs of required physico-chemical parameters (controlled size, shape, composition, and surface conditioning of NPs). Advances in laser-ablative fabrication of novel nanomaterials open up avenues for future implementations of nuclear and radiative medicine approaches for safe and efficient theranostics of tumors and metastasis.
- ПубликацияОграниченоВлияние длительности импульса на свойства наночастиц бора, получаемых лазерной фрагментацией микропорошков в жидкостях(2024) Айыыжы, К. О.; Савинов, М. С.; Тихоновский, Г. В.; Попов, А. А.; Целиков, Д. И.; Созаев, И. В.; Лактионов, А. А.; Горбань, М. В.; Бармина, Е. В.; Григорьева, М. С.; Завестовская, И. Н.; Климентов, С. М.; Кабашин, А. В.; Попов, Антон Александрович; Кабашин, Андрей Викторович; Климентов, Сергей Михайлович; Григорьева, Мария Сергеевна; Тихоновский, Глеб Валерьевич; Целиков, Даниил Игоревич; Созаев, Ислам Владимирович; Завестовская, Ирина Николаевна; Лактионов, Артем Алексеевич; Савинов, Максим СергеевичОптимизация режимов лазерного синтеза, обеспечивающего производство коллоидных растворов наночастиц бора для применения их в качестве перспективного борсодержащего агента борнейтронзахватной терапии (БНЗТ) онкологических заболеваний является актуальным направлением развития БНЗТ. В настоящей работе коллоидные растворы наночастиц бора синтезировались методом лазерной фрагментации в органических растворителях с использованием лазерных импульсов наносекундного и фемтосекундного диапазона длительностей. В качестве исходного материала в обоих случаях служил порошок стабильного изотопа 10В субмикронных фракций с произвольной морфологией поверхности. Проведено прямое сравнение зависимости свойств получаемых наноматериалов от длительности лазерных импульсов.
- ПубликацияТолько метаданныеIn vivo evaluation of safety, biodistribution and pharmacokinetics of laser-synthesized gold nanoparticles(2019) Bailly, A. -L.; Correard, F.; Tselikov, G.; Chaspoul, F.; Popov, A.; Kabashin, A. V.; Попов, Антон Александрович; Кабашин, Андрей ВикторовичCapable of generating plasmonic and other effects, gold nanostructures can offer a variety of diagnostic and therapy functionalities for biomedical applications, but conventional chemically-synthesized Au nanomaterials cannot always match stringent requirements for toxicity levels and surface conditioning. Laser-synthesized Au nanoparticles (AuNP) present a viable alternative to chemical counterparts and can offer exceptional purity (no trace of contaminants) and unusual surface chemistry making possible direct conjugation with biocompatible polymers (dextran, polyethylene glycol). This work presents the first pharmacokinetics, biodistribution and safety study of laser-ablated dextran-coated AuNP (AuNPd) under intravenous administration in small animal model. Our data show that AuNPd are rapidly eliminated from the blood circulation and accumulated preferentially in liver and spleen, without inducing liver or kidney toxicity, as confirmed by the plasmatic ALAT and ASAT activities, and creatininemia values. Despite certain residual accumulation in tissues, we did not detect any sign of histological damage or inflammation in tissues, while IL-6 level confirmed the absence of any chronic inflammation. The safety of AuNPd was confirmed by healthy behavior of animals and the absence of acute and chronic toxicities in liver, spleen and kidneys. Our results demonstrate that laser-synthesized AuNP are safe for biological systems, which promises their successful biomedical applications.
- ПубликацияТолько метаданныеBare laser-synthesized palladium-gold alloy nanoparticles as efficient electrocatalysts for glucose oxidation for energy conversion applications(2020) Holade, Y.; Hebie, S.; Maximova, K.; Kokoh, K. B.; Sentis, M.; Delaporte, P.; Kabashin, A. V.; Кабашин, Андрей Викторович© The Royal Society of Chemistry.Electrochemical energy converters based on biomass-based organic molecules such as glucose have recently demonstrated great potential for the development of functional bioimplantable devices such as pacemakers, but such converters lack efficient metal-based anode nanocatalysts, which could combine the stability of parameters with high performance. Here, we elaborate a technique of femtosecond laser ablation in water to synthesize bare (ligand-free) PdAu alloy nanoparticles with constituents having a variable ratio and explore these nanoparticles as electrocatalysts for glucose oxidation. Our data evidence that the combination of two metals in one bare nanoformulation can result in a strong synergetic effect, which makes the combination of high catalytic activity toward glucose oxidation with ultrafast kinetics at low potentials possible due to the presence of Au and Pd, respectively, while a bare uncontaminated surface ensures outstanding catalytic performance. We show that at an optimal ratio of constituents (50%/50%), PdAu nanoparticles can provide a mass activity of 60 A g-1 and an onset potential lower than 0.27 V vs. RHE, which outperform all currently existing nanoparticle-based electrodes. Our results show that bare nanomaterials prepared by laser-Ablation synthesis can offer much improved characteristics as electrocatalysts for energy conversion and storage applications, while the versatility of laser synthesis can be extended to other alloy architectures in order to provide optimal characteristics for a concrete catalytic process.
- ПубликацияТолько метаданныеNonlinear photoacoustic response of suspensions of laser-synthesized plasmonic titanium nitride nanoparticles(2020) Maldonado, M. E.; Das, A.; Gomes, A. S. L.; Popov, A. A.; Klimentov, S. M.; Kabashin, A. V.; Попов, Антон Александрович; Климентов, Сергей Михайлович; Кабашин, Андрей Викторович© 2020 Optical Society of AmericaA nonlinear photoacoustic (PA) response from solutions of 40 nm plasmonic titanium nitride nanoparticles (NPs) synthesized by laser ablation in a liquid environment (acetone) is reported. Using a photoacoustic Z-scan with 5 ns pumping pulses, values of effective nonlinear absorption (NLA) coefficients βPA,eff were measured and found to be 3.27±0.17 × 10−8, 6.41±0.32 × 10−8, and 3.22±0.16 × 10−8 for 600, 700, and 800 nm pumping wavelengths, respectively. To take into account the influence of nonlinear scattering, absorption-dependent PA measurements were carried out together with the optical Z-scan, and the obtained data were compared. The origin of the effective absorptive nonlinearity is discussed based on combined NLA in NPs, nonlinear scattering, and bubble generation triggered by NP-mediated light absorption. Potential applications include biomedical diagnostics and therapy.
- ПубликацияТолько метаданныеLaser-ablative synthesis and photoheating characterization of TiN NPs for biomedical applications(2022) Popov, A. A.; Tikhonowski, G. V.; Popova-Kuznetsova, E. A.; Klimentov, S. M.; Kabashin, A. V.; Попов, Антон Александрович; Тихоновский, Глеб Валерьевич; Попова-Кузнецова, Елена Алефтиновна; Климентов, Сергей Михайлович; Кабашин, Андрей ВикторовичTitanium nitride (TiN) nanoparticles (NPs) prepared by methods of laser ablation in liquids present a novel object, which promises attractive biomedical applications. Here, we review our recent advances in the elaboration of femtosecond laser ablation technique from a TiN target in liquid medium (here, isopropanol) to maximize the efficiency of TiN NPs synthesis and optimize their characteristics. Our experiments showed that the synthesis productivity is dependent on lateral velocity of laser beam scanning during laser ablation with the achievement of productivity saturation at a certain relatively high velocity. The observed phenomenon was attributed to the interaction of laser pulses with cavitation bubbles generated during the ablation process. In addition, we assessed photo heating properties of the synthesized TiN NPs in the near-IR range. It was found that TiN NPs with sizes in 20-50 nm range have the highest heating rate and can be heated to maximal temperatures. As demonstrated by our recent tests in vitro and in vivo, this size range is optimal for biomedical applications, which promises successful applications of these nanoparticles in phototherapy and imaging modalities.
- ПубликацияТолько метаданныеTemperature oscillations during photoinduced heating of aqueous suspensions of silicon nanoparticles(2021) Belov, V. S.; Bobkov, E. A.; Oleschenko, V. A.; Kabashin, A. V.; Timoshenko, V. Yu.; Белов, Владимир Сергеевич; Бобков, Егор Андреевич; Кабашин, Андрей Викторович; Тимошенко, Виктор Юрьевич© 2021 Institute of Physics Publishing. All rights reserved.Temperature oscillations (pulsations) were detected in aqueous suspensions of silicon (Si) nanoparticles NPs under laser irradiation with highly absorbed light. The temperature pulsation frequency was found to depend on the NPs concentration in suspension and laser irradiation power. The observed phenomenon is assumed to be caused by the local overheating of Si NPs close to the boiling point of water, while the average heating of the surrounding liquid was insignificant. The observed phenomenon is discussed in view of potential applications in local photo-induced hyperthermia of cancer.