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
收藏
页码：2071 / 2073
页数：3
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