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Proceedings Paper

Inactivation of proteins by irradiation of gold nanoparticles with nano- and picosecond laser pulses
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Paper Abstract

Irradiation of 15 nm gold particles with nano- and picosecond laser pulses can create locally temperatures beyond the critical point of water. Due to the short heating times the temperature is localised to the vicinity of the particles. Under irradiation with nano- and picosecond pulses an inactivation of the enzymes alkaline phosphatase and chymotrypsin which were bound to the surface of the particles was observed. As expected by strong temperature gradient caused by the short irradiation time the protein inactivation is localized within a few tens of nanometers when picosecond pulses were used. This was shown by irradiating gold protein conjugates in which the protein was bound via two anitbodies to the particle.

Paper Details

Date Published: 16 October 2003
PDF: 8 pages
Proc. SPIE 5142, Therapeutic Laser Applications and Laser-Tissue Interactions, (16 October 2003); doi: 10.1117/12.500525
Show Author Affiliations
Gereon Huettmann, Medizinisches Laserzentrum Luebeck GmbH (Germany)
Benno Radt, Univ. of Melbourne, Victoria (Australia)
Jesper Serbin, Laser Zentrum Hannover e.V. (Germany)
Reginald Birngruber, Medizinisches Laserzentrum Luebeck GmbH (Germany)

Published in SPIE Proceedings Vol. 5142:
Therapeutic Laser Applications and Laser-Tissue Interactions
Rudolf W. Steiner, Editor(s)

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