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染料浓缩的有机改性二氧化硅纳米颗粒作为通过单光子和双光子激发的比率荧光pH探针。

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

作者信息

Kim Sehoon, Pudavar Haridas E, Prasad Paras N

机构信息

Institute for Lasers, Photonics and Biophotonics, Department of Chemistry, State University of New York, Buffalo, New York 14260-3000, USA.

出版信息

Chem Commun (Camb). 2006 May 21(19):2071-3. doi: 10.1039/b600926c. Epub 2006 Apr 6.

DOI:10.1039/b600926c
PMID:16767279
Abstract

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

摘要

碱性染料浓缩纳米颗粒（直径约33纳米）通过单光子和双光子激发显示基于荧光的比率pH响应，通过纳米级颗粒内能量转移提高了质子传感能力（pKa约为6.4）。

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