Share Email Print

Proceedings Paper

Application of fluorescence depolarization to dye uptake and particle sizing in silica sols
Author(s): Chris D. Geddes; David J. S. Birch; Kathleen Apperson; John M. Chevers; Ian P. McKeown
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We describe a new approach to particle size measurement in silica sols based on the decay of fluorescence anisotropy of a bound near infrared dye. Changes in particle size up to 4.5 nm are resolved with sub-nanometer resolution across the sol to gel transition.

Paper Details

Date Published: 3 May 1999
PDF: 10 pages
Proc. SPIE 3602, Advances in Fluorescence Sensing Technology IV, (3 May 1999); doi: 10.1117/12.347523
Show Author Affiliations
Chris D. Geddes, Strathclyde Univ. (United Kingdom)
David J. S. Birch, Strathclyde Univ. (United Kingdom)
Kathleen Apperson, Strathclyde Univ. (United Kingdom)
John M. Chevers, Strathclyde Univ. (United Kingdom)
Ian P. McKeown, Crosfield Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 3602:
Advances in Fluorescence Sensing Technology IV
Joseph R. Lakowicz; Steven A. Soper; Richard B. Thompson, Editor(s)

© SPIE. Terms of Use
Back to Top