[Text] : статья / A.P. Gavrilyuk, S.V. Karpov // Applied Physics B: Lasers and Optics. - 2011. - p. 65-72DOI 10.1007/s00340-010-4180-x
. -
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Karpov, S.V.; Гаврилюк, Анатолий Петрович
Труды сотрудников ИВМ СО РАН
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Найдено документов в текущей БД: 17
Dynamic changes of optical characteristics of resonant domains in metal nanoparticle aggregates under pulsed laser fields
Processes in resonant domains of metal nanoparticle aggregates and optical nonlinearity of aggregates in pulsed laser fields
[Text] : статья / A.P. Gavrilyuk, S.V. Karpov // Applied Physics B: Lasers and Optics. - 2009. - Vol. 97, Iss. 1. - p. 163–173 10.1007/s00340-009-3592-y
. -
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Karpov, S.V.; Гаврилюк, Анатолий Петрович
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Karpov, S.V.; Гаврилюк, Анатолий Петрович
Magnetosheath for almost-aligned solar wind magnetic field and flow vectors: Wind observations across the dawnside magnetosheath at X =-12 Re
[Text] / C.J. Farrugia [et al.] // J. Geophys. Res-Space Phys. - 2010. - Vol. 115. - Ст. A08227, DOI 10.1029/2009JA015128. - Cited References: 34. - The authors would like to thank David Burgess for helpful discussions. Part of this work was done when NVE was on a research visit to the Space Science Center of the University of New Hampshire, USA. This work is supported by NASA grants NNX08AD11G and NNG06GD41G, and also by RFBR grants 07-05-00135, 09-05-91000-ANF_a and by Program 16 of RAS. R. P. Lin has been supported in part by NASA grant NNX08AE34G at UC Berkeley, and the WCU grant (R31-10016) funded by the Korean Ministry of Education, Science and Technology. We thank D. J. McComas and H. J. Singer for the ACE plasma data and GOES magnetic field data, respectively, obtained through NASA cdaweb site.
. - ISSN 0148-0227
РУБ Astronomy & Astrophysics
Аннотация: While there are many approximations describing the flow of the solar wind past the magnetosphere in the magnetosheath, the case of perfectly aligned (parallel or antiparallel) interplanetary magnetic field (IMF) and solar wind flow vectors can be treated exactly in a magnetohydrodynamic (MHD) approach. In this work we examine a case of nearly-opposed (to within 15) interplanetary field and flow vectors, which occurred on October 24-25, 2001 during passage of the last interplanetary coronal mass ejection in an ejecta merger. Interplanetary data are from the ACE spacecraft. Simultaneously Wind was crossing the near-Earth (X similar to -13 Re) geomagnetic tail and subsequently made an approximately 5-hour-long magnetosheath crossing close to the ecliptic plane (Z = -0.7 Re). Geomagnetic activity was returning steadily to quiet, "ground" conditions. We first compare the predictions of the Spreiter and Rizzi theory with the Wind magnetosheath observations and find fair agreement, in particular as regards the proportionality of the magnetic field strength and the product of the plasma density and bulk speed. We then carry out a small-perturbation analysis of the Spreiter and Rizzi solution to account for the small IMF components perpendicular to the flow vector. The resulting expression is compared to the time series of the observations and satisfactory agreement is obtained. We also present and discuss observations in the dawnside boundary layer of pulsed, high-speed (v similar to 600 km/s) flows exceeding the solar wind flow speeds. We examine various generating mechanisms and suggest that the most likely cause is a wave of frequency 3.2 mHz excited at the inner edge of the boundary layer by the Kelvin-Helmholtz instability.
Доп.точки доступа:
Farrugia, C.J.; Erkaev, N.V.; Еркаев, Николай Васильевич; Torbert, R.B.; Biernat, H.K.; Gratton, F.T.; Szabo, A.; Kucharek, H.; Matsui, H.; Lin, R.P.; Ogilvie, K.W.; Lepping, R.P.; Smith, C.W.
Аннотация: While there are many approximations describing the flow of the solar wind past the magnetosphere in the magnetosheath, the case of perfectly aligned (parallel or antiparallel) interplanetary magnetic field (IMF) and solar wind flow vectors can be treated exactly in a magnetohydrodynamic (MHD) approach. In this work we examine a case of nearly-opposed (to within 15) interplanetary field and flow vectors, which occurred on October 24-25, 2001 during passage of the last interplanetary coronal mass ejection in an ejecta merger. Interplanetary data are from the ACE spacecraft. Simultaneously Wind was crossing the near-Earth (X similar to -13 Re) geomagnetic tail and subsequently made an approximately 5-hour-long magnetosheath crossing close to the ecliptic plane (Z = -0.7 Re). Geomagnetic activity was returning steadily to quiet, "ground" conditions. We first compare the predictions of the Spreiter and Rizzi theory with the Wind magnetosheath observations and find fair agreement, in particular as regards the proportionality of the magnetic field strength and the product of the plasma density and bulk speed. We then carry out a small-perturbation analysis of the Spreiter and Rizzi solution to account for the small IMF components perpendicular to the flow vector. The resulting expression is compared to the time series of the observations and satisfactory agreement is obtained. We also present and discuss observations in the dawnside boundary layer of pulsed, high-speed (v similar to 600 km/s) flows exceeding the solar wind flow speeds. We examine various generating mechanisms and suggest that the most likely cause is a wave of frequency 3.2 mHz excited at the inner edge of the boundary layer by the Kelvin-Helmholtz instability.
Доп.точки доступа:
Farrugia, C.J.; Erkaev, N.V.; Еркаев, Николай Васильевич; Torbert, R.B.; Biernat, H.K.; Gratton, F.T.; Szabo, A.; Kucharek, H.; Matsui, H.; Lin, R.P.; Ogilvie, K.W.; Lepping, R.P.; Smith, C.W.
Optodynamic phenomena in aggregates of polydisperse plasmonic nanoparticles
/ A. E. Ershov [et al.] // Applied Physics B: Lasers and Optics. - 2013. - P1-14, DOI 10.1007/s00340-013-5636-6
. - ISSN 0946-2171
Аннотация: We propose an optodynamical model of interaction of pulsed laser radiation with aggregates of spherical metallic nanoparticles embedded into host media. The model takes into account polydispersity of particles, pair interactions between the particles, dissipation of absorbed energy, heating and melting of the metallic core of particles and of their polymer adsorption layers, and heat exchange between electron and ion components of the particle material as well as heat exchange with the interparticle medium. Temperature dependence of the electron relaxation constant of the particle material and the effect of this dependence on interaction of nanoparticles with laser radiation are first taken into consideration. We study in detail light-induced processes in the simplest resonant domains of multiparticle aggregates consisting of two particles of an arbitrary size in aqueous medium. Optical interparticle forces are realized due to the light-induced dipole interaction. The dipole moment of each particle is calculated by the coupled dipole method (with correction for the effect of higher multipoles). We determined the role of various interrelated factors leading to photomodification of resonant domains and found an essential difference in the photomodification mechanisms between polydisperse and monodisperse nanostructures. © 2013 Springer-Verlag Berlin Heidelberg.
Scopus,
WOS
Держатели документа:
L.V. Kirenski Institute of Physics, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Institute of Computational Modeling, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660028, Russian Federation
ИФ СО РАН
ИВМ СО РАН
Доп.точки доступа:
Ershov, A.E.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Karpov, S.V.; Semina, P.N.
Аннотация: We propose an optodynamical model of interaction of pulsed laser radiation with aggregates of spherical metallic nanoparticles embedded into host media. The model takes into account polydispersity of particles, pair interactions between the particles, dissipation of absorbed energy, heating and melting of the metallic core of particles and of their polymer adsorption layers, and heat exchange between electron and ion components of the particle material as well as heat exchange with the interparticle medium. Temperature dependence of the electron relaxation constant of the particle material and the effect of this dependence on interaction of nanoparticles with laser radiation are first taken into consideration. We study in detail light-induced processes in the simplest resonant domains of multiparticle aggregates consisting of two particles of an arbitrary size in aqueous medium. Optical interparticle forces are realized due to the light-induced dipole interaction. The dipole moment of each particle is calculated by the coupled dipole method (with correction for the effect of higher multipoles). We determined the role of various interrelated factors leading to photomodification of resonant domains and found an essential difference in the photomodification mechanisms between polydisperse and monodisperse nanostructures. © 2013 Springer-Verlag Berlin Heidelberg.
Scopus,
WOS
Держатели документа:
L.V. Kirenski Institute of Physics, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Institute of Computational Modeling, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660028, Russian Federation
ИФ СО РАН
ИВМ СО РАН
Доп.точки доступа:
Ershov, A.E.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Karpov, S.V.; Semina, P.N.
Optodynamic phenomena in aggregates of polydisperse plasmonic nanoparticles
[Text] / A. E. Ershov [et al.] // Appl. Phys. B-Lasers Opt. - 2014. - Vol. 115, Is. 4. - P. 547-560, DOI 10.1007/s00340-013-5636-6. - Cited References: 48. - Authors are thankful to Prof. V. A. Markel (University of Pennsylvania) for supplying program codes for realization of the coupled dipole method for polydisperse metal nanoparticle aggregates. This research was supported by the Russian Academy of Sciences under the Grants 24.29, 24.31, III.9.5, 43, SB RAS-SFU (101); Ministry of Education and Science of Russian Federation under Contract 14.B37.21.0457.
. - ISSN 0946-2171. - ISSN 1432-0649
РУБ Optics + Physics, Applied
Аннотация: We propose an optodynamical model of interaction of pulsed laser radiation with aggregates of spherical metallic nanoparticles embedded into host media. The model takes into account polydispersity of particles, pair interactions between the particles, dissipation of absorbed energy, heating and melting of the metallic core of particles and of their polymer adsorption layers, and heat exchange between electron and ion components of the particle material as well as heat exchange with the interparticle medium. Temperature dependence of the electron relaxation constant of the particle material and the effect of this dependence on interaction of nanoparticles with laser radiation are first taken into consideration. We study in detail light-induced processes in the simplest resonant domains of multiparticle aggregates consisting of two particles of an arbitrary size in aqueous medium. Optical interparticle forces are realized due to the light-induced dipole interaction. The dipole moment of each particle is calculated by the coupled dipole method (with correction for the effect of higher multipoles). We determined the role of various interrelated factors leading to photomodification of resonant domains and found an essential difference in the photomodification mechanisms between polydisperse and monodisperse nanostructures.
WOS,
Scopus
Держатели документа:
[Ershov, A. E.
Karpov, S. V.
Semina, P. N.] Russian Acad Sci, LV Kirenski Inst Phys, Krasnoyarsk 660036, Russia
[Gavrilyuk, A. P.] Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia
[Gavrilyuk, A. P.
Karpov, S. V.] Siberian Fed Univ, Krasnoyarsk 660028, Russia
ИФ СО РАН
ИВМ СО РАН
Доп.точки доступа:
Ershov, A.E.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Karpov, S.V.; Semina, P.N.; Russian Academy of Sciences [24.29, 24.31, III.9.5, 43, SB RAS-SFU (101)]; Ministry of Education and Science of Russian Federation [14.B37.21.0457]
Рубрики:
SMALL-PARTICLE COMPOSITES
OPTICAL-PROPERTIES
NOBLE-METALS
SILVER
ELECTRON
LIQUID
GENERATION
DYNAMICS
FORCES
GOLD
SMALL-PARTICLE COMPOSITES
OPTICAL-PROPERTIES
NOBLE-METALS
SILVER
ELECTRON
LIQUID
GENERATION
DYNAMICS
FORCES
GOLD
Аннотация: We propose an optodynamical model of interaction of pulsed laser radiation with aggregates of spherical metallic nanoparticles embedded into host media. The model takes into account polydispersity of particles, pair interactions between the particles, dissipation of absorbed energy, heating and melting of the metallic core of particles and of their polymer adsorption layers, and heat exchange between electron and ion components of the particle material as well as heat exchange with the interparticle medium. Temperature dependence of the electron relaxation constant of the particle material and the effect of this dependence on interaction of nanoparticles with laser radiation are first taken into consideration. We study in detail light-induced processes in the simplest resonant domains of multiparticle aggregates consisting of two particles of an arbitrary size in aqueous medium. Optical interparticle forces are realized due to the light-induced dipole interaction. The dipole moment of each particle is calculated by the coupled dipole method (with correction for the effect of higher multipoles). We determined the role of various interrelated factors leading to photomodification of resonant domains and found an essential difference in the photomodification mechanisms between polydisperse and monodisperse nanostructures.
WOS,
Scopus
Держатели документа:
[Ershov, A. E.
Karpov, S. V.
Semina, P. N.] Russian Acad Sci, LV Kirenski Inst Phys, Krasnoyarsk 660036, Russia
[Gavrilyuk, A. P.] Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia
[Gavrilyuk, A. P.
Karpov, S. V.] Siberian Fed Univ, Krasnoyarsk 660028, Russia
ИФ СО РАН
ИВМ СО РАН
Доп.точки доступа:
Ershov, A.E.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Karpov, S.V.; Semina, P.N.; Russian Academy of Sciences [24.29, 24.31, III.9.5, 43, SB RAS-SFU (101)]; Ministry of Education and Science of Russian Federation [14.B37.21.0457]
The combined effect of optical laser and microwave radiations on a metal surface
[Text] / A. P. Gavrilyuk, N. Y. Shaparev // Chin. Phys. B. - 2014. - Vol. 23, Is. 2. - Ст. 25205, DOI 10.1088/1674-1056/23/2/025205. - Cited References: 14
. - ISSN 1674-1056. - ISSN 1741-4199
РУБ Physics, Multidisciplinary
Аннотация: In this paper, it is shown that the laser radiation intensity required for complete ionization of vapors produced on an irradiated metal surface can be reduced by more than an order of magnitude through using pulsed laser radiation in combination with microwave radiation.
wos
Держатели документа:
[Gavrilyuk, Anatoli P.
Shaparev, Nikolai Ya] Russian Acad Sci, Siberian Branch, Inst Computat Modeling, Krasnoyarsk, Russia
[Gavrilyuk, Anatoli P.] Siberian Fed Univ, Krasnoyarsk, Russia
ИВМ СО РАН
Доп.точки доступа:
Shaparev, N.Ya.; Шапарев, Николай Якимович; Гаврилюк, Анатолий Петрович
Аннотация: In this paper, it is shown that the laser radiation intensity required for complete ionization of vapors produced on an irradiated metal surface can be reduced by more than an order of magnitude through using pulsed laser radiation in combination with microwave radiation.
wos
Держатели документа:
[Gavrilyuk, Anatoli P.
Shaparev, Nikolai Ya] Russian Acad Sci, Siberian Branch, Inst Computat Modeling, Krasnoyarsk, Russia
[Gavrilyuk, Anatoli P.] Siberian Fed Univ, Krasnoyarsk, Russia
ИВМ СО РАН
Доп.точки доступа:
Shaparev, N.Ya.; Шапарев, Николай Якимович; Гаврилюк, Анатолий Петрович
Effect of local environment in resonant domains of polydisperse plasmonic nanoparticle aggregates on optodynamic processes in pulsed laser fields
[Text] / A. E. Ershov [et al.] // Chin. Phys. B. - 2015. - Vol. 24, Is. 4. - Ст. 047804, DOI 10.1088/1674-1056/24/4/047804. - Cited References:25. - Project supported by the Russian Academy of Sciences (Grant Nos. 24.29, 24.31, III.9.5, 43, SB RAS-SFU (101), and 3-9-5).
. - ISSN 1674-1056. - ISSN 1741-4199
РУБ Physics, Multidisciplinary
Аннотация: Interactions of pulsed laser radiation with resonance domains of multiparticle colloidal aggregates having an increasingly complex local environment are studied via an optodynamic model. The model is applied to the simplest configurations, such as single particles, dimers, and trimers consisting of mono- and polydisperse Ag nanoparticles. We analyze how the local environment and the associated local field enhancement by surrounding particles affect the optodynamic processes in domains, including their photomodification and optical properties.
WOS,
Полный текст на сайте журнала,
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Смотреть статью
Держатели документа:
Russian Acad Sci, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Siberian Fed Univ, Krasnoyarsk 660028, Russia
Доп.точки доступа:
Ershov, A.E.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Karpov, S.V.; Semina, P.N.; Russian Academy of Sciences [24.29, 24.31, III.9.5, 43, SB RAS-SFU (101), 3-9-5]
Рубрики:
METAL NANOPARTICLES
GOLD NANOPARTICLES
OPTICAL-PROPERTIES
Кл.слова (ненормированные):
nanoparticle -- surface plasmon -- colloid aggregate -- optodynamics
METAL NANOPARTICLES
GOLD NANOPARTICLES
OPTICAL-PROPERTIES
Кл.слова (ненормированные):
nanoparticle -- surface plasmon -- colloid aggregate -- optodynamics
Аннотация: Interactions of pulsed laser radiation with resonance domains of multiparticle colloidal aggregates having an increasingly complex local environment are studied via an optodynamic model. The model is applied to the simplest configurations, such as single particles, dimers, and trimers consisting of mono- and polydisperse Ag nanoparticles. We analyze how the local environment and the associated local field enhancement by surrounding particles affect the optodynamic processes in domains, including their photomodification and optical properties.
WOS,
Полный текст на сайте журнала,
Scopus,
Смотреть статью
Держатели документа:
Russian Acad Sci, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Siberian Fed Univ, Krasnoyarsk 660028, Russia
Доп.точки доступа:
Ershov, A.E.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Karpov, S.V.; Semina, P.N.; Russian Academy of Sciences [24.29, 24.31, III.9.5, 43, SB RAS-SFU (101), 3-9-5]
Plasmonic Nanoparticle Aggregates in High-Intensity Laser Fields: Effect of Pulse Duration
[Text] / A. E. Ershov, A. P. Gavrilyuk, S. V. Karpov // Plasmonics. - 2016. - Vol. 11, Is. 2. - P403-410, DOI 10.1007/s11468-015-0054-8. - Cited References:20. - Authors are thankful to Prof. V.A. Markel (University of Pennsylvania) for supplying program codes with realization of coupled dipole method for polydisperse nanoparticle aggregates. This work was performed within the state contract of the RF Ministry of Education and Science for Siberian Federal University for scientific research in 2014 (Reference number 1792)
. - ISSN 1557-1955. - ISSN 1557-1963
РУБ Chemistry, Physical + Nanoscience & Nanotechnology + Materials Science,
Аннотация: We use an optodynamic model to study the interaction of pulsed laser radiation of different duration with mono- and polydisperse dimers and trimers of plasmonic nanoparticles as resonant domains of colloid Ag multiparticle aggregates. A comparative analysis of the influence of pulse duration on the kinetic characteristics of domains accompanied by the change in their local structure was carried out taking into account the intensity of incident radiation. The obtained results explain the reasons for laser photochromic reactions in materials containing colloidal aggregates of plasmonic nanoparticles.
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Scopus,
Смотреть статью
Держатели документа:
Russian Acad Sci, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia.
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.
Siberian Fed Univ, Krasnoyarsk 660028, Russia.
Доп.точки доступа:
Ershov, A. E.; Gavrilyuk, A. P.; Karpov, S. V.; state contract of the RF Ministry of Education and Science for Siberian Federal University [1792]
Рубрики:
METAL NANOPARTICLES
Кл.слова (ненормированные):
Nanoparticle -- Surface plasmon -- Colloidal aggregate -- Optodynamics
METAL NANOPARTICLES
Кл.слова (ненормированные):
Nanoparticle -- Surface plasmon -- Colloidal aggregate -- Optodynamics
Аннотация: We use an optodynamic model to study the interaction of pulsed laser radiation of different duration with mono- and polydisperse dimers and trimers of plasmonic nanoparticles as resonant domains of colloid Ag multiparticle aggregates. A comparative analysis of the influence of pulse duration on the kinetic characteristics of domains accompanied by the change in their local structure was carried out taking into account the intensity of incident radiation. The obtained results explain the reasons for laser photochromic reactions in materials containing colloidal aggregates of plasmonic nanoparticles.
WOS,
Scopus,
Смотреть статью
Держатели документа:
Russian Acad Sci, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia.
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.
Siberian Fed Univ, Krasnoyarsk 660028, Russia.
Доп.точки доступа:
Ershov, A. E.; Gavrilyuk, A. P.; Karpov, S. V.; state contract of the RF Ministry of Education and Science for Siberian Federal University [1792]
Optimization of photothermal methods for laser hyperthermia of malignant cells using bioconjugates of gold nanoparticles
/ V. S. Gerasimov [et al.] // Colloid J. - 2016. - Vol. 78, Is. 4. - P435-442, DOI 10.1134/S1061933X16040050
. - ISSN 1061-933X
Кл.слова (ненормированные):
Biomolecules -- Cell membranes -- Cells -- Continuous wave lasers -- Cytology -- Fiber optic sensors -- Gold -- Laser radiation -- Metal nanoparticles -- Nanoparticles -- Oligonucleotides -- Bioconjugates -- Cell surfaces -- Cellular membranes -- DNA aptamers -- Gold Nanoparticles -- Malignant cells -- Photothermal methods -- Pulsed lasers
Аннотация: Selective action of laser radiation on membranes of malignant cells has been studied in different regimes using conjugates of gold nanoparticles with oligonucleotides by the example of DNA aptamers. Under the conditions of a contact between a bioconjugate and a cell surface and the development of substantial and rapidly relaxing temperature gradients near a nanoparticle, the membranes of malignant cells alone are efficiently damaged due to the local hyperthermia of a cellular membrane. It has been shown that employment of pulsed instead of continuous wave laser radiation provides the localization of the damaging action, which does not involve healthy cells. © 2016, Pleiades Publishing, Ltd.
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Держатели документа:
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/44, Krasnoyarsk, Russian Federation
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/38, Krasnoyarsk, Russian Federation
Reshetnev State Siberian State Aerospace University, pr. Gazety “Krasnoyarskii rabochii” 31, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Gerasimov, V. S.; Ershov, A. E.; Karpov, S. V.; Polyutov, S. P.; Semina, P. N.
Кл.слова (ненормированные):
Biomolecules -- Cell membranes -- Cells -- Continuous wave lasers -- Cytology -- Fiber optic sensors -- Gold -- Laser radiation -- Metal nanoparticles -- Nanoparticles -- Oligonucleotides -- Bioconjugates -- Cell surfaces -- Cellular membranes -- DNA aptamers -- Gold Nanoparticles -- Malignant cells -- Photothermal methods -- Pulsed lasers
Аннотация: Selective action of laser radiation on membranes of malignant cells has been studied in different regimes using conjugates of gold nanoparticles with oligonucleotides by the example of DNA aptamers. Under the conditions of a contact between a bioconjugate and a cell surface and the development of substantial and rapidly relaxing temperature gradients near a nanoparticle, the membranes of malignant cells alone are efficiently damaged due to the local hyperthermia of a cellular membrane. It has been shown that employment of pulsed instead of continuous wave laser radiation provides the localization of the damaging action, which does not involve healthy cells. © 2016, Pleiades Publishing, Ltd.
Scopus,
Смотреть статью,
WOS
Держатели документа:
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/44, Krasnoyarsk, Russian Federation
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/38, Krasnoyarsk, Russian Federation
Reshetnev State Siberian State Aerospace University, pr. Gazety “Krasnoyarskii rabochii” 31, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Gerasimov, V. S.; Ershov, A. E.; Karpov, S. V.; Polyutov, S. P.; Semina, P. N.
Restructuring of plasmonic nanoparticle aggregates with arbitrary particle size distribution in pulsed laser fields
/ A. E. Ershov [et al.] // Chin. Phys. - 2016. - Vol. 25, Is. 11, DOI 10.1088/1674-1056/25/11/117806
. - ISSN 1674-1056
Кл.слова (ненормированные):
laser radiation -- nanoparticle -- optodynamics -- surface plasmon -- Aggregates -- Laser radiation -- Nanoparticles -- Particle size -- Particle size analysis -- Photochromism -- Plasmons -- Size distribution -- Average particle size -- Colloidal nanoparticles -- Nonlinear optical effects -- Optical characteristics -- optodynamics -- Photochromic reactions -- Plasmonic nanoparticle -- Surface plasmons -- Pulsed lasers
Аннотация: We have studied processes of interaction of pulsed laser radiation with resonant groups of plasmonic nanoparticles (resonant domains) in large colloidal nanoparticle aggregates having different interparticle gaps and particle size distributions. These processes are responsible for the origin of nonlinear optical effects and photochromic reactions in multiparticle aggregates. To describe photo-induced transformations in resonant domains and alterations in their absorption spectra remaining after the pulse action, we introduce the factor of spectral photomodification. Based on calculation of changes in thermodynamic, mechanical, and optical characteristics of the domains, the histograms of the spectrum photomodification factor have been obtained for various interparticle gaps, an average particle size, and the degree of polydispersity. Variations in spectra have been analyzed depending on the intensity of laser radiation and various combinations of size characteristics of domains. The obtained results can be used to predict manifestation of photochromic effects in composite materials containing different plasmonic nanoparticle aggregates in pulsed laser fields. © 2016 Chinese Physical Society and IOP Publishing Ltd.
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Держатели документа:
Institute of Computational Modeling, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
L. V. Kirensky Institute of Physics of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Ershov, A. E.; Gavrilyuk, A. P.; Karpov, S. V.; Polyutov, S. P.
Кл.слова (ненормированные):
laser radiation -- nanoparticle -- optodynamics -- surface plasmon -- Aggregates -- Laser radiation -- Nanoparticles -- Particle size -- Particle size analysis -- Photochromism -- Plasmons -- Size distribution -- Average particle size -- Colloidal nanoparticles -- Nonlinear optical effects -- Optical characteristics -- optodynamics -- Photochromic reactions -- Plasmonic nanoparticle -- Surface plasmons -- Pulsed lasers
Аннотация: We have studied processes of interaction of pulsed laser radiation with resonant groups of plasmonic nanoparticles (resonant domains) in large colloidal nanoparticle aggregates having different interparticle gaps and particle size distributions. These processes are responsible for the origin of nonlinear optical effects and photochromic reactions in multiparticle aggregates. To describe photo-induced transformations in resonant domains and alterations in their absorption spectra remaining after the pulse action, we introduce the factor of spectral photomodification. Based on calculation of changes in thermodynamic, mechanical, and optical characteristics of the domains, the histograms of the spectrum photomodification factor have been obtained for various interparticle gaps, an average particle size, and the degree of polydispersity. Variations in spectra have been analyzed depending on the intensity of laser radiation and various combinations of size characteristics of domains. The obtained results can be used to predict manifestation of photochromic effects in composite materials containing different plasmonic nanoparticle aggregates in pulsed laser fields. © 2016 Chinese Physical Society and IOP Publishing Ltd.
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Держатели документа:
Institute of Computational Modeling, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
L. V. Kirensky Institute of Physics of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Ershov, A. E.; Gavrilyuk, A. P.; Karpov, S. V.; Polyutov, S. P.
Thermal limiting effects in optical plasmonic waveguides
/ A. E. Ershov [et al.] // J. Quant. Spectrosc. Radiat. Transf. - 2017. - Vol. 191. - P1-6, DOI 10.1016/j.jqsrt.2017.01.023
. - ISSN 0022-4073
Кл.слова (ненормированные):
Optical plasmonic waveguide -- Plasmon resonance -- Surface plasmon polariton -- Thermal effects -- Chains -- Efficiency -- Electromagnetic wave polarization -- Laser excitation -- Optical waveguides -- Radiation effects -- Silver -- Surface plasmon resonance -- Thermal effects -- Waveguides -- Continuous operation -- Limiting effects -- Melting point temperature -- Optimal excitation -- Plasmon resonances -- Plasmonic waveguides -- Surface plasmon polaritons -- Transmission efficiency -- Plasmons
Аннотация: We have studied thermal effects occurring during excitation of optical plasmonic waveguide (OPW) in the form of linear chain of spherical Ag nanoparticles by pulsed laser radiation. It was shown that heating and subsequent melting of the first irradiated particle in a chain can significantly deteriorate the transmission efficiency of OPW that is the crucial and limiting factor and continuous operation of OPW requires cooling devices. This effect is caused by suppression of particle's surface plasmon resonance due to reaching the melting point temperature. We have determined optimal excitation parameters which do not significantly affect the transmission efficiency of OPW. © 2017
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Держатели документа:
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Royal Institute of Technology, Stockholm, Sweden
The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
Доп.точки доступа:
Ershov, A.E.; Ершов, Александр Евгеньевич; Gerasimov, V. S.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Karpov, S. V.; Zakomirnyi, V. I.; Rasskazov, I. L.; Polyutov, S. P.
Кл.слова (ненормированные):
Optical plasmonic waveguide -- Plasmon resonance -- Surface plasmon polariton -- Thermal effects -- Chains -- Efficiency -- Electromagnetic wave polarization -- Laser excitation -- Optical waveguides -- Radiation effects -- Silver -- Surface plasmon resonance -- Thermal effects -- Waveguides -- Continuous operation -- Limiting effects -- Melting point temperature -- Optimal excitation -- Plasmon resonances -- Plasmonic waveguides -- Surface plasmon polaritons -- Transmission efficiency -- Plasmons
Аннотация: We have studied thermal effects occurring during excitation of optical plasmonic waveguide (OPW) in the form of linear chain of spherical Ag nanoparticles by pulsed laser radiation. It was shown that heating and subsequent melting of the first irradiated particle in a chain can significantly deteriorate the transmission efficiency of OPW that is the crucial and limiting factor and continuous operation of OPW requires cooling devices. This effect is caused by suppression of particle's surface plasmon resonance due to reaching the melting point temperature. We have determined optimal excitation parameters which do not significantly affect the transmission efficiency of OPW. © 2017
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Держатели документа:
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Royal Institute of Technology, Stockholm, Sweden
The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
Доп.точки доступа:
Ershov, A.E.; Ершов, Александр Евгеньевич; Gerasimov, V. S.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Karpov, S. V.; Zakomirnyi, V. I.; Rasskazov, I. L.; Polyutov, S. P.
Thermal effects in systems of colloidal plasmonic nanoparticles in high-intensity pulsed laser fields [Invited]
/ V. S. Gerasimov [et al.] // Opt. Mater. Express. - 2017. - Vol. 7, Is. 2. - P555-568, DOI 10.1364/OME.7.000555
. - ISSN 2159-3930
Кл.слова (ненормированные):
Aggregates -- Gold -- Nanoparticles -- Plasmons -- Silver -- Ag nanoparticle -- High intensity -- Light-induced process -- Nanoparticle aggregate -- Physical model -- Plasmonic nanoparticle -- Pulsed-laser field -- Thermal interaction -- Pulsed lasers
Аннотация: We have studied light induced processes in nanocolloids and composite materials containing ordered and disordered aggregates of plasmonic nanoparticles accompanied by their strong heating. A universal comprehensive physical model that combines mechanical, electrodynamical, and thermal interactions at nanoscale has been developed as a tool for investigations. This model was used to gain deep insight on phenomena that take place in nanoparticle aggregates under high-intensity pulsed laser radiation resulting in the suppression of nanoparticle resonant properties. Verification of the model was carried out with single colloidal Au and Ag nanoparticles and their aggregates. © 2017 Optical Society of America.
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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Royal Institute of Technology, Stockholm, Sweden
The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
Доп.точки доступа:
Gerasimov, V. S.; Ershov, A.E.; Ершов, Александр Евгеньевич; Karpov, S. V.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Zakomirnyi, V. I.; Rasskazov, I. L.; Agren, H.; Polyutov, S. P.
Кл.слова (ненормированные):
Aggregates -- Gold -- Nanoparticles -- Plasmons -- Silver -- Ag nanoparticle -- High intensity -- Light-induced process -- Nanoparticle aggregate -- Physical model -- Plasmonic nanoparticle -- Pulsed-laser field -- Thermal interaction -- Pulsed lasers
Аннотация: We have studied light induced processes in nanocolloids and composite materials containing ordered and disordered aggregates of plasmonic nanoparticles accompanied by their strong heating. A universal comprehensive physical model that combines mechanical, electrodynamical, and thermal interactions at nanoscale has been developed as a tool for investigations. This model was used to gain deep insight on phenomena that take place in nanoparticle aggregates under high-intensity pulsed laser radiation resulting in the suppression of nanoparticle resonant properties. Verification of the model was carried out with single colloidal Au and Ag nanoparticles and their aggregates. © 2017 Optical Society of America.
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WOS
Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Royal Institute of Technology, Stockholm, Sweden
The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
Доп.точки доступа:
Gerasimov, V. S.; Ershov, A.E.; Ершов, Александр Евгеньевич; Karpov, S. V.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Zakomirnyi, V. I.; Rasskazov, I. L.; Agren, H.; Polyutov, S. P.
Thermal effects in systems of colloidal plasmonic nanoparticles in high-intensity pulsed laser fields [Invited]: Publisher's note
/ V. S. Gerasimov [et al.] // Opt. Mater. Express. - 2017. - Vol. 7, Is. 3. - P799-799, DOI 10.1364/OME.7.000799
. - ISSN 2159-3930
Кл.слова (ненормированные):
Optical materials -- High intensity -- Plasmonic nanoparticle -- Pulsed-laser field -- Materials science
Аннотация: This publisher's note amends the author list of [Opt. Mater. Express 7, 5555 (2017)]. © 2017 Optical Society of America.
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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Royal Institute of Technology, Stockholm, Sweden
The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana- Champaign, Urbana, IL, United States
Доп.точки доступа:
Gerasimov, V. S.; Ershov, A.E.; Ершов, Александр Евгеньевич; Karpov, S. V.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Zakomirnyi, V. I.; Rasskazov, I. L.; Agren, H.; Polyutov, S. P.
Кл.слова (ненормированные):
Optical materials -- High intensity -- Plasmonic nanoparticle -- Pulsed-laser field -- Materials science
Аннотация: This publisher's note amends the author list of [Opt. Mater. Express 7, 5555 (2017)]. © 2017 Optical Society of America.
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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Royal Institute of Technology, Stockholm, Sweden
The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana- Champaign, Urbana, IL, United States
Доп.точки доступа:
Gerasimov, V. S.; Ershov, A.E.; Ершов, Александр Евгеньевич; Karpov, S. V.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Zakomirnyi, V. I.; Rasskazov, I. L.; Agren, H.; Polyutov, S. P.
535.8; 544.77.03
Ф 81
Ф 81
ФОТОХРОМНЫЕ ЭФФЕКТЫ В КОМПОЗИТНЫХ СРЕДАХ, СОДЕРЖАЩИХ АГРЕГАТЫ ПЛАЗМОННЫХ НАНОЧАСТИЦ В ИМПУЛЬСНЫХ ЛАЗЕРНЫХ ПОЛЯХ
[Текст] : статья / А. Е. Ершов [и др.] // Решетневские чтения. - 2018. - Т. 1, № 22. - С. 527-528
. - ISSN 1990-7702
Перевод заглавия: PHOTOCHROMIC EFFECTS IN COMPOSITE MEDIA WITH PLASMONIC NANOPARTICLE AGGREGATES IN PULSED LASER FIELDS
Кл.слова (ненормированные):
поверхностный плазмонный резонанс -- коллоидные агрегаты -- фотомодификация -- surface plasmon resonance -- Colloid aggregate -- photomodification
Аннотация: Разработана модель фотомодификации агрегатов плазмонных наночастиц. Модель может использоваться при разработке элементов памяти и оптических интегральных микросхем нового поколения в сложных спутниковых системах.
A model of photomodification of plasmonic nanoparticle aggregates is developed. The model can be used in fabrication of the memory elements and optical integrated circuits of new generation for complex satellite systems.
РИНЦ
Держатели документа:
Институт вычислительного моделирования СО РАН
Институт физики имени Л. В. Киренского СО РАН
Сибирский государственный университет науки и технологий имени академика М. Ф. Решетнева
Сибирский федеральный университет
Доп.точки доступа:
Ершов, А.Е.; Ershov A.E.; Гаврилюк, А.П.; Gavrilyuk A.P.; Герасимов, В.С.; Gerasimov V.S.; Карпов, С.В.; Karpov S.V.
Перевод заглавия: PHOTOCHROMIC EFFECTS IN COMPOSITE MEDIA WITH PLASMONIC NANOPARTICLE AGGREGATES IN PULSED LASER FIELDS
| УДК |
Кл.слова (ненормированные):
поверхностный плазмонный резонанс -- коллоидные агрегаты -- фотомодификация -- surface plasmon resonance -- Colloid aggregate -- photomodification
Аннотация: Разработана модель фотомодификации агрегатов плазмонных наночастиц. Модель может использоваться при разработке элементов памяти и оптических интегральных микросхем нового поколения в сложных спутниковых системах.
A model of photomodification of plasmonic nanoparticle aggregates is developed. The model can be used in fabrication of the memory elements and optical integrated circuits of new generation for complex satellite systems.
РИНЦ
Держатели документа:
Институт вычислительного моделирования СО РАН
Институт физики имени Л. В. Киренского СО РАН
Сибирский государственный университет науки и технологий имени академика М. Ф. Решетнева
Сибирский федеральный университет
Доп.точки доступа:
Ершов, А.Е.; Ershov A.E.; Гаврилюк, А.П.; Gavrilyuk A.P.; Герасимов, В.С.; Gerasimov V.S.; Карпов, С.В.; Karpov S.V.
544.77+541.18+535.8+616-006.04
О-62
О-62
ОПТИМИЗАЦИЯ ФОТОТЕРМИЧЕСКИХ МЕТОДОВ ЛАЗЕРНОЙ ГИПЕРТЕРМИИ ЗЛОКАЧЕСТВЕННЫХ КЛЕТОК С ПРИМЕНЕНИЕМ БИОКОНЪЮГАТОВ МНОГОСЛОЙНЫХ НАНОЧАСТИЦ С ДНК-АПТАМЕРАМИ
[Текст] : статья / А. С. Костюков [и др.] // Решетневские чтения. - 2018. - Т. 1, № 22. - С. 529-531
. - ISSN 1990-7702
Перевод заглавия: OPTIMIZATION OF PHOTOTHERMAL METHODS OF HYPERTHERMIA OF MALIGNANT CELLS USING NANOPARTICLE CORE-SHELL BIOCONJUGATES WITH DNA APTAMERS
Кл.слова (ненормированные):
плазмонная фототермическая терапия -- многослойные наночастицы -- Plasmonic photothermal therapy -- multilayered core-shell nanoparticles
Аннотация: Изучение влияния высокой радиационной нагрузки на организм человека в условиях космического полета является важным направлением онкологии и космической медицины. В работе исследуются особенности импульсной лазерной гипертермии злокачественных клеток с помощью многослойных плазмонных наночастиц.
Effect of corpuscular radiation on a human organism during space flight is an important area of oncology and space medicine. Peculiarities of pulsed laser hyperthermia of malignant cells are studied using multilayer plasmonic nanoparticles
РИНЦ
Держатели документа:
Институт вычислительного моделирования СО РАН
Институт теплофизики имени С. С. Кутателадзе СО РАН
Институт физики имени Л. В. Киренского
Сибирский государственный университет науки и технологий имени академика М. Ф. Решетнева
Сибирский федеральный университет
Доп.точки доступа:
Костюков, А.С.; Kostyukov A.S.; Филимонов, С.А.; Filimonov S.A.; Ершов, А.Е.; Ershov A.E.; Герасимов, В.С.; Gerasimov V.S.; Карпов, С.В.; Karpov S.V.
Перевод заглавия: OPTIMIZATION OF PHOTOTHERMAL METHODS OF HYPERTHERMIA OF MALIGNANT CELLS USING NANOPARTICLE CORE-SHELL BIOCONJUGATES WITH DNA APTAMERS
| УДК |
Кл.слова (ненормированные):
плазмонная фототермическая терапия -- многослойные наночастицы -- Plasmonic photothermal therapy -- multilayered core-shell nanoparticles
Аннотация: Изучение влияния высокой радиационной нагрузки на организм человека в условиях космического полета является важным направлением онкологии и космической медицины. В работе исследуются особенности импульсной лазерной гипертермии злокачественных клеток с помощью многослойных плазмонных наночастиц.
Effect of corpuscular radiation on a human organism during space flight is an important area of oncology and space medicine. Peculiarities of pulsed laser hyperthermia of malignant cells are studied using multilayer plasmonic nanoparticles
РИНЦ
Держатели документа:
Институт вычислительного моделирования СО РАН
Институт теплофизики имени С. С. Кутателадзе СО РАН
Институт физики имени Л. В. Киренского
Сибирский государственный университет науки и технологий имени академика М. Ф. Решетнева
Сибирский федеральный университет
Доп.точки доступа:
Костюков, А.С.; Kostyukov A.S.; Филимонов, С.А.; Filimonov S.A.; Ершов, А.Е.; Ershov A.E.; Герасимов, В.С.; Gerasimov V.S.; Карпов, С.В.; Karpov S.V.
Super-efficient laser hyperthermia of malignant cells with core-shell nanoparticles based on alternative plasmonic materials
/ A. S. Kostyukov [et al.] // J. Quant. Spectrosc. Radiat. Transf. - 2019. - Vol. 236. - Ст. 106599, DOI 10.1016/j.jqsrt.2019.106599
. - ISSN 0022-4073
Кл.слова (ненормированные):
Conducting oxides -- Nanoparticle -- Nanoshell -- Plasmonic photothermal therapy -- Aluminum oxide -- Core shell nanoparticles -- Efficiency -- Gallium compounds -- II-VI semiconductors -- Nanoparticles -- Nanoshells -- Nanostructured materials -- Optical films -- Plasmonics -- Pulsed lasers -- Shells (structures) -- Silica -- Specific heat -- Transparent conducting oxides -- Zinc oxide -- Aluminum-doped zinc oxide -- Comparative studies -- Conducting oxides -- Gallium doped zinc oxides -- Nanoshell -- Orders of magnitude -- Photothermal therapy -- Spatial localization -- Plasmonic nanoparticles -- aluminum -- cell -- comparative study -- gold -- nanoparticle -- oxide -- zinc
Аннотация: New type of highly absorbing core-shell AZO/Au (aluminum doped zinc oxide/gold) and GZO/Au (gallium doped zinc oxide/gold) nanoparticles have been proposed for hyperthermia of malignant cells purposes. Comparative studies of pulsed laser hyperthermia were performed for Au nanoshells with AZO core and traditional SiO2 (quartz) core. We show that under the same conditions, the hyperthermia efficiency in the case of AZO increases by several orders of magnitude compared to SiO2 due to low heat capacity of AZO. Similar results have been obtained for GZO core which has same heat capacity. Calculations for pico-, nano- and sub-microsecond pulses demonstrate that reduced pulse duration results in strong spatial localization of overheated areas around nanoparticles, which ensures the absence of negative effects to the normal tissue. Moreover, we propose new alternative way for the optimization of hyperthermia efficiency: instead of maximizing the absorption of nanoparticles, we enhance the thermal damage effect on the membrane of malignant cell. This strategy allows to find the parameters of nanoparticle and the incident radiation for the most effective therapy. © 2019 Elsevier Ltd
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Держатели документа:
Siberian Federal UniversityKrasnoyarsk, Russian Federation
Institute of Computational Modeling SB RASKrasnoyarsk, Russian Federation
Siberian State University of Science and TechnologyKrasnoyarsk, Russian Federation
The Institute of Optics, University of RochesterNY, United States
Kirensky Institute of Physics, Federal Research Center KSC SB RASKrasnoyarsk, Russian Federation
Доп.точки доступа:
Kostyukov, A. S.; Ershov, A. E.; Gerasimov, V. S.; Filimonov, S. A.; Rasskazov, I. L.; Karpov, S. V.
Кл.слова (ненормированные):
Conducting oxides -- Nanoparticle -- Nanoshell -- Plasmonic photothermal therapy -- Aluminum oxide -- Core shell nanoparticles -- Efficiency -- Gallium compounds -- II-VI semiconductors -- Nanoparticles -- Nanoshells -- Nanostructured materials -- Optical films -- Plasmonics -- Pulsed lasers -- Shells (structures) -- Silica -- Specific heat -- Transparent conducting oxides -- Zinc oxide -- Aluminum-doped zinc oxide -- Comparative studies -- Conducting oxides -- Gallium doped zinc oxides -- Nanoshell -- Orders of magnitude -- Photothermal therapy -- Spatial localization -- Plasmonic nanoparticles -- aluminum -- cell -- comparative study -- gold -- nanoparticle -- oxide -- zinc
Аннотация: New type of highly absorbing core-shell AZO/Au (aluminum doped zinc oxide/gold) and GZO/Au (gallium doped zinc oxide/gold) nanoparticles have been proposed for hyperthermia of malignant cells purposes. Comparative studies of pulsed laser hyperthermia were performed for Au nanoshells with AZO core and traditional SiO2 (quartz) core. We show that under the same conditions, the hyperthermia efficiency in the case of AZO increases by several orders of magnitude compared to SiO2 due to low heat capacity of AZO. Similar results have been obtained for GZO core which has same heat capacity. Calculations for pico-, nano- and sub-microsecond pulses demonstrate that reduced pulse duration results in strong spatial localization of overheated areas around nanoparticles, which ensures the absence of negative effects to the normal tissue. Moreover, we propose new alternative way for the optimization of hyperthermia efficiency: instead of maximizing the absorption of nanoparticles, we enhance the thermal damage effect on the membrane of malignant cell. This strategy allows to find the parameters of nanoparticle and the incident radiation for the most effective therapy. © 2019 Elsevier Ltd
Scopus,
Смотреть статью
Держатели документа:
Siberian Federal UniversityKrasnoyarsk, Russian Federation
Institute of Computational Modeling SB RASKrasnoyarsk, Russian Federation
Siberian State University of Science and TechnologyKrasnoyarsk, Russian Federation
The Institute of Optics, University of RochesterNY, United States
Kirensky Institute of Physics, Federal Research Center KSC SB RASKrasnoyarsk, Russian Federation
Доп.точки доступа:
Kostyukov, A. S.; Ershov, A. E.; Gerasimov, V. S.; Filimonov, S. A.; Rasskazov, I. L.; Karpov, S. V.
Processes underlying the laser photochromic effect in colloidal plasmonic nanoparticle aggregates*
/ A. E. Ershov, V. S. Gerasimov, I. L. Isaev [et al.] // Chin. Phys. B. - 2020. - Vol. 29, Is. 3. - Ст. 037802, DOI 10.1088/1674-1056/ab6551. - Cited References:38. - Project funded by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science (Grant 18-42-243023), the RF Ministry of Science and Higher Education, and the State Contract with Siberian Federal University for Scientific Research. A.E. thanks the grant of the President of Russian Federation (agreement 075-15-2019-676).
. - ISSN 1674-1056. - ISSN 1741-4199
РУБ Physics, Multidisciplinary
Аннотация: We have studied the dynamic and static processes occurring in disordered multiparticle colloidal Ag aggregates with natural structure and affecting their plasmonic absorption spectra under pico- and nanosecond pulsed laser radiations, as well as the physical origin responsible for these processes. We have shown that depending on the duration of the laser pulse, the mechanisms of laser modification of such aggregates can be associated both with changes in the resonant properties of the particles due to their heating and melting (picosecond irradiation mode) and with the particle shifts in the resonant domains of the aggregates (nanosecond pulses) which depend on the wavelength, intensity, and polarization of the radiation. These mechanisms result in formation of a narrow dip in the plasmonic absorption spectrum of the aggregates near the laser radiation wavelength and affect the shape and position of the dip. The effect of polydispersity of nanoparticle aggregates on laser photochromic reaction has been studied.
WOS
Держатели документа:
RAS, SB, Inst Computat Modeling, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
RAS, SB, KSC, Kirensky Inst Phys,Fed Res Ctr, Krasnoyarsk 660036, Russia.
Siberian State Univ Sci & Technol, Krasnoyarsk 660014, Russia.
Доп.точки доступа:
Ershov, A. E.; Gerasimov, V. S.; Isaev, I. L.; Gavrilyuk, A. P.; Karpov, S., V; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of the Krasnoyarsk Territory [18-42-243023]; Krasnoyarsk Regional Fund of Science [18-42-243023]; RF Ministry of Science and Higher Education; Siberian Federal University for Scientific Research; Russian FederationRussian Federation [075-15-2019-676]
Рубрики:
SELECTIVE PHOTOMODIFICATION
LIGHT
FORCES
OPTICS
Кл.слова (ненормированные):
nanoparticle -- surface plasmon resonance -- photochromic process -- pulsed -- laser radiation
SELECTIVE PHOTOMODIFICATION
LIGHT
FORCES
OPTICS
Кл.слова (ненормированные):
nanoparticle -- surface plasmon resonance -- photochromic process -- pulsed -- laser radiation
Аннотация: We have studied the dynamic and static processes occurring in disordered multiparticle colloidal Ag aggregates with natural structure and affecting their plasmonic absorption spectra under pico- and nanosecond pulsed laser radiations, as well as the physical origin responsible for these processes. We have shown that depending on the duration of the laser pulse, the mechanisms of laser modification of such aggregates can be associated both with changes in the resonant properties of the particles due to their heating and melting (picosecond irradiation mode) and with the particle shifts in the resonant domains of the aggregates (nanosecond pulses) which depend on the wavelength, intensity, and polarization of the radiation. These mechanisms result in formation of a narrow dip in the plasmonic absorption spectrum of the aggregates near the laser radiation wavelength and affect the shape and position of the dip. The effect of polydispersity of nanoparticle aggregates on laser photochromic reaction has been studied.
WOS
Держатели документа:
RAS, SB, Inst Computat Modeling, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
RAS, SB, KSC, Kirensky Inst Phys,Fed Res Ctr, Krasnoyarsk 660036, Russia.
Siberian State Univ Sci & Technol, Krasnoyarsk 660014, Russia.
Доп.точки доступа:
Ershov, A. E.; Gerasimov, V. S.; Isaev, I. L.; Gavrilyuk, A. P.; Karpov, S., V; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of the Krasnoyarsk Territory [18-42-243023]; Krasnoyarsk Regional Fund of Science [18-42-243023]; RF Ministry of Science and Higher Education; Siberian Federal University for Scientific Research; Russian FederationRussian Federation [075-15-2019-676]