Issue 19, 2006
From the journal:

Chemical Communications

Dye-concentrated organically modified silicananoparticles as a ratiometric fluorescent pH probe by one- and two-photon excitation†

Sehoon Kim,a   Haridas E. Pudavara  and  Paras N. Prasad*a  

* Corresponding authors

a Institute for Lasers, Photonics and Biophotonics, Department of Chemistry, State University of New York, Buffalo, New York, USA
E-mail: pnprasad@buffalo.edu

Abstract

Basic dye-concentrated nanoparticles (∼ 33 nm in diameter) show fluorescence-based ratiometric pH response, by one- and two-photon excitations, with improved proton sensing ability (pKa ∼ 6.4) through nanoscopic intraparticle energy transfer.

Graphical abstract: Dye-concentrated organically modified silica nanoparticles as a ratiometric fluorescent pH probe by one- and two-photon excitation

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Article information

DOI
https://doi.org/10.1039/B600926C
Article type
Communication
Submitted
23 Jan 2006
Accepted
23 Mar 2006
First published
06 Apr 2006

Chem. Commun., 2006, 2071-2073

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Dye-concentrated organically modified silica nanoparticles as a ratiometric fluorescent pH probe by one- and two-photon excitation

S. Kim, H. E. Pudavar and P. N. Prasad, Chem. Commun., 2006, 2071 DOI: 10.1039/B600926C

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