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24 November 2010 Laser-induced microbubbles in gold and oxide nanoparticle suspensions: photoacoustic detection
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Proceedings Volume 7376, Laser Applications in Life Sciences; 737606 (2010) https://doi.org/10.1117/12.871461
Event: Laser Applications in Life Sciences 2010, 2010, Oulu, Finland
Abstract
A tunable pulsed laser with nano-second pulse duration is used to generate microbubbles in highly diluted nanoparticle (Au, TiO2 and ZnO) suspensions. The microbubble explosion may produce shock wave which is in-phase detected by a low-frequency piezoelectric transducer. The effects of particle size and category on the threshold laser fluence of shock wave generation and the wave intensity are investigated. The interaction between laser and nanoparticles has significant application in biomedicine such as photothermal diagnostic and therapy, as well as cosmetic or drug delivery in skin.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Z. Zhao and R. Myllylä "Laser-induced microbubbles in gold and oxide nanoparticle suspensions: photoacoustic detection", Proc. SPIE 7376, Laser Applications in Life Sciences, 737606 (24 November 2010); https://doi.org/10.1117/12.871461
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