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Proceedings Paper

Toward new biocompatible nanostructured biomarkers by femtosecond laser ablation in liquid environment
Author(s): L. Sajti; A. Said; S. Giorgio; W. Marine
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Paper Abstract

In the present work, we report the synthesis of ZnO nanoparticles by adopting femtosecond laser ablation of ZnO targets in pure ethanol, and in a solution of Tetramethylrhodamine B isothiocyante. An ultrafast intensified CCD device was used to study the plasma formation in the liquid environment. Dye molecules were grafted onto the ZnO nanoparticles by adding the dye solution to the ablated ZnO-ethanol solution. From the optical studies of the ZnO nanoparticles by photoluminescence spectroscopy, we observed energy transfer from the ZnO to the attached dye molecules. Strongly facetted nanohybrid particles were observed with an average size of 15 nm, by HRTEM measurements. Finally, we show that the in situ ablation in the dye solution allows to increase the efficiency of the energy transfer from the ZnO nanoparticle to the grafted dye molecules.

Paper Details

Date Published: 14 April 2006
PDF: 7 pages
Proc. SPIE 6191, Biophotonics and New Therapy Frontiers, 61910Y (14 April 2006); doi: 10.1117/12.662449
Show Author Affiliations
L. Sajti, CRMC-N, CNRS, Univ. de la Méditerranée (France)
A. Said, CRMC-N, CNRS, Univ. de la Méditerranée (France)
S. Giorgio, CRMC-N, CNRS, Univ. de la Méditerranée (France)
W. Marine, CRMC-N, CNRS, Univ. de la Méditerranée (France)

Published in SPIE Proceedings Vol. 6191:
Biophotonics and New Therapy Frontiers
Romualda Grzymala; Olivier Haeberle, Editor(s)

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