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

被引：70

作者：

Kim, S ^{[1
]}

Pudavar, HE ^{[1
]}

Prasad, PN ^{[1
]}

机构：

[1] SUNY Buffalo, Dept Chem, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USA

来源：

CHEMICAL COMMUNICATIONS | 2006年 / 19期

关键词：

D O I：

10.1039/b600926c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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

引用

页码：2071 / 2073

页数：3

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