Vol. 30 No. 4 (2020)
Papers

PLASMONIC PHOTOTHERMAL HEATING OF GOLD NANOSHELL SOLUTIONS

Do Thi Nga
Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh, Hanoi, Vietnam
Le Ba Nam
School of Engineering Physics, Hanoi University of Science and Technology, 1 Dai Co Viet, Hanoi, Vietnam
To Thi Thao
Department of Physics, Post and Telecommunications Institute of Technology Nguyen Trai Street, Ha Dong District, Hanoi, Vietnam
Vu Thi Thuy Duong
Ministry of Science and Technology 113 Tran Duy Hung Street, Cau Giay District, Hanoi, Vietnam
Cover Vol 30 No 4 December 2020

Published 16-11-2020

Keywords

  • photothermal effects,
  • gold nanoshells,
  • NIR,
  • Mie theory

How to Cite

Nga, D. T., Nam, L. B., Thao, T. T., & Duong, V. T. T. (2020). PLASMONIC PHOTOTHERMAL HEATING OF GOLD NANOSHELL SOLUTIONS. Communications in Physics, 30(4), 363. https://doi.org/10.15625/0868-3166/30/4/15152

Abstract

We present a theoretical approach to theoretically investigate how gold core-shell
nanoparticles dispersed in water thermally respond to near-infrared-regime laser illumination. First, the absorption cross section of gold nanostructures is calculated using Mie theory. Second, we determine the absorbed power density when the solution is exposed by the laser light. Here, the solution of nanostructures is assumed to be uniform and homogenous. Third, we analytically solve the transient bioheat equation to calculate time-dependent temperature increase. Our theoretical calculations quantitatively agree with previous experiments without any adjustable parameter.
This approach would provide a reliable tool to understand photothermal effects in unexplored structures.

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