Threshold parameters of the mechanisms of selective nanophotothermolysis with gold nanoparticles

Victor Pustovalov; Vladimir Zharov

doi:10.1117/12.759060

20 February 2008 Threshold parameters of the mechanisms of selective nanophotothermolysis with gold nanoparticles

Victor Pustovalov, Vladimir Zharov

Proceedings Volume 6854, Optical Interactions with Tissue and Cells XIX; 685412 (2008) https://doi.org/10.1117/12.759060
Event: SPIE BiOS, 2008, San Jose, California, United States

Abstract

Photothermal-based effects in and around gold nanoparticles under action of short (nano, pico- and femtosecond) laser pulses are analyzed with focus on photoacoustic effects due to the thermal expansion of nanoparticles and liquid around them, thermal protein denaturation, explosive liquid vaporization, melting and evaporation of nanoparticle, optical breakdown initiated by nanoparticles and accompanied to shock waves and explosion (fragmentation) of gold nanoparticles. Characteristic parameters for these processes such as the temperature and laser intensity thresholds are summarized to provide basis for comparison of different mechanisms of selective nanophotothermolysis of different targets (e.g., cancer cells, bacteria, viruses, fungi, and helminths).

Citation Download Citation

Victor Pustovalov and Vladimir Zharov "Threshold parameters of the mechanisms of selective nanophotothermolysis with gold nanoparticles", Proc. SPIE 6854, Optical Interactions with Tissue and Cells XIX, 685412 (20 February 2008); https://doi.org/10.1117/12.759060

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