New ideally absorbing Au plasmonic nanostructures for biomedical applications

Описание

Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.1016/j.jqsrt.2016.08.015

Ключевые слова: Ideal absorption, Plasmonic photothermal therapy, Nanoshell, Nanomatryoshka, PHOTOTHERMAL THERAPY PPTT, GOLD NANOPARTICLES, OPTICAL-PROPERTIES, COATED NANOPARTICLES, CANCER-CELLS, NANOSHELLS, ABSORPTION, LIGHT, RESONANCE, SIZE, Medical applications, Nanoshells, Nanostructured materials, Plasmons, Tin oxides, Biomedical applications, Optical transparency, Photothermal therapy, Plasmonic nanostructures, Quantum size effects, Radiation frequencies, Nanostructures

Аннотация: In this paper a new set of plasmonic nanostructures operating at the conditions of an ideal absorption (Grigoriev et al., 2015%1]) was proposed for novel biomedical applications. We consider spherical x/Au nanoshells and Au/x/Au nanomatryoshkas, where 'x' changes from conventional Si and SiO2 to alternative plasmonic materials (NaiПоказать полностьюl and Shalaev, 2013%2]), such as zinc oxide doped with aluminum, gallium and indium tin oxide. The absorption peak of proposed nanostructures lies within 700-1100 nm wavelength region and corresponds to the maximal optical transparency of hemoglobin and melanin as well as to the radiation frequency of available pulsed medical lasers. It was shown that the ideal absorption takes place in a given wavelength region for Au coatings with thickness less than 12 nm. In this case finite quantum size effects for metallic nanoshells play a significant role. The mathematical model for the search of the ideal absorption conditions was modified by taking into account the finite quantum size effects. Published by Elsevier Ltd.

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Издание

Журнал: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER

Выпуск журнала: Vol. 187

Номера страниц: 54-61

ISSN журнала: 00224073

Место издания: OXFORD

Издатель: PERGAMON-ELSEVIER SCIENCE LTD

Авторы

  • Zakomirnyi Vadim L. (Siberian Fed Univ)
  • Rasskazov Ilia L. (Siberian Fed Univ; Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA)
  • Karpov Sergey V. (Siberian Fed Univ; LV Kirenskii Inst Phys; Siberian State Aerosp Univ)
  • Polyutov Sergey P. (Siberian Fed Univ)

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