Photothermal Behaviors of Flowing Media Caused by Localized Surface Plasmon Resonance of Au Nanorings

Autor:	Ming-Jyun Li, Chih-Chung Yang, Shih-Yang Chen, Yu-Wei Chang, Yi-Chou Tu, Chih-Kang Yu, Chih-Ken Chu, Yean-Woei Kiang, Ting-Ta Chi, Che-Kuan Chu
Rok vydání:	2015
Předmět:	Materials science Oscillation business.industry Bubble Photothermal effect Biophysics Photothermal therapy Biochemistry Molecular physics Signal Physics::Fluid Dynamics Viscosity Optics Surface plasmon resonance business Biotechnology Localized surface plasmon
Zdroj:	Plasmonics. 10:1565-1572
ISSN:	1557-1963 1557-1955
Popis:	Based on the scanning of photothermal optical coherence tomography (PT-OCT), the photothermal behavior of a flowing medium generated by the enhanced absorption of localized surface plasmon resonance of incorporated Au nanorings (NRIs) is observed. In particular, the effects of air bubble generation and thermally induced bubble size oscillation in a flowing medium through the incorporation of Au NRIs and modulated laser illumination are demonstrated. The size oscillation of the air bubble produces the vibration of the flowing medium, which is synchronized with the laser modulation, for generating PT-OCT signal. At the resonance frequency of flowing-medium vibration, the PT-OCT signal reaches the maximum level. The resonance frequency is related to the mass density and viscosity of the flowing medium and is independent of the flow speed of the medium in a vessel. Such a relation can be used for in situ monitoring the mass density and viscosity of a flowing medium.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ac4d562acfba98c424712fd86dc88568 https://doi.org/10.1007/s11468-015-9972-8 Zobrazit plný text záznamu Plný text ve formátu PDF