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Proceedings Paper

Gold nanorods as exogenous chromophores in the welding of ocular tissues
Author(s): Fulvio Ratto; Paolo Matteini; Francesca Rossi; Roberto Pini; Neha Tiwari; Sulabha K. Kulkarni; Luca Menabuoni
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Paper Abstract

In this paper we show for the first time the suitability of gold nanorods as exogenous chromophores to mediate the near infrared laser welding of connective tissues. We used a 810 nm diode laser to simulate hetero-transplantations of patches of porcine lens capsules stained with nanorods with plasmon resonances about that wavelength. In our preliminary tests, successful welding was achieved at fluences in the 80 - 110 J·cm-2 range, which is, at worst, less than half of the threshold for direct damage, although still about a factor of two higher than the state-of-the-art with conventional chromophores such as Indocyanine Green.

Paper Details

Date Published: 25 February 2008
PDF: 6 pages
Proc. SPIE 6844, Ophthalmic Technologies XVIII, 68441V (25 February 2008); doi: 10.1117/12.763114
Show Author Affiliations
Fulvio Ratto, Istituto di Fisica Applicata (Italy)
Paolo Matteini, Istituto di Fisica Applicata (Italy)
Francesca Rossi, Istituto di Fisica Applicata (Italy)
Roberto Pini, Istituto di Fisica Applicata (Italy)
Neha Tiwari, Univ. of Pune (India)
Sulabha K. Kulkarni, Univ. of Pune (India)
Luca Menabuoni, Unità Operativa Oculistica (Italy)

Published in SPIE Proceedings Vol. 6844:
Ophthalmic Technologies XVIII
Bruce E. Stuck; Fabrice Manns; Per G. Söderberg; Michael Belkin M.D.; Arthur Ho, Editor(s)

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