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Appl. Sci. 2016, 6(11), 357; doi:10.3390/app6110357

Numerical Study of Photoacoustic Pressure for Cancer Therapy

Group for Automatic Mesh Generation and Advanced Methods (Gamma3 UTT-INRIA), University of Technology of Troyes, 12 rue Marie Curie-CS 42060, Troyes CEDEX 10004, France
These authors contributed equally to this work.
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Author to whom correspondence should be addressed.
Academic Editor: Kohji Masuda
Received: 12 October 2016 / Revised: 2 November 2016 / Accepted: 11 November 2016 / Published: 15 November 2016
(This article belongs to the Section Nanotechnology and Applied Nanosciences)
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Abstract

A commonly used therapy for cancer is based on the necrosis of cells induced by heating through the illumination of nanoparticles embedded in cells. Recently, the photoacoustic pressure shock induced by the illumination pulse was proved and this points to another means of cell destruction. The purpose of this study is to propose a model of the photoacoustic pressure in cells. The numerical resolution of the problem requires the accurate computation of the electromagnetism, the temperature and the pressure around the nanostructures embedded in a cell. Here, the problem of the interaction between an electromagnetic excitation and a gold nanoparticle embedded in a cell domain is solved. The variations of the thermal and photoacoustic pressures are studied in order to analyze the pressure shock wave inducing the collapse of the cell’s membrane in cancer therapy. View Full-Text
Keywords: numerical approximation and analysis; medical optics and biotechnology; simulations; photoacoustics; thermal imaging; photothermal effects; photoacoustic therapy numerical approximation and analysis; medical optics and biotechnology; simulations; photoacoustics; thermal imaging; photothermal effects; photoacoustic therapy
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Grosges, T.; Barchiesi, D. Numerical Study of Photoacoustic Pressure for Cancer Therapy. Appl. Sci. 2016, 6, 357.

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