Metal enhanced fluorescence of Me-ADOTA-Cl dye by silver triangular nanoprisms on a gold film

被引：12

作者：

Folmar, Michele ^{[1
]}

Shtoyko, Tanya ^{[1
]}

Fudala, Rafal ^{[2
]}

Akopova, Irina ^{[2
]}

Gryczynski, Zygmunt ^{[2
,3
]}

Raut, Sangram ^{[2
]}

Gryczynski, Ignacy ^{[2
]}

机构：

[1] Univ Texas Tyler, Dept Chem, Tyler, TX 75799 USA

[2] Univ N Texas, Hlth Sci Ctr, Dept Mol Biol & Immunol, Ctr Commercializat Fluorescence Technol, Ft Worth, TX 76107 USA

[3] Texas Christian Univ, Dept Phys, Ft Worth, TX 76129 USA

来源：

CHEMICAL PHYSICS LETTERS | 2012年 / 531卷

关键词：

DEPOLARIZED LIGHT-SCATTERING; MOLECULAR FLUORESCENCE; ISLAND FILMS; SURFACE; NANOPARTICLES; SIZE;

D O I：

10.1016/j.cplett.2012.01.087

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this Letter we discuss the plasmonic scattering and fluorescence enhancement properties of silver triangular nanoprisms synthesized by a chemical reduction method. Plasmonic platforms (PPs) were made by air-dried self-assembly of the silver triangular nanoprisms onto a gold mirror. Fluorescence enhancement was investigated using methyl-azadioxatriangulenium chloride (Me-ADOTA-Cl) dye in PVA deposited on PPs. Confocal microscopy results showed a 15-fold enhancement of the dye overall, with over 50-fold enhancements on 'hot spot' regions. The presence of silver nanoprisms significantly reduced the lifetime of the fluorophore. The preparation of silver triangular nanoprisms and observed emission data are highly reproducible. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：126 / 131

页数：6

共 16 条

[1] Enhanced fluorescence emission of Me-ADOTA+ by self-assembled silver nanoparticles on a gold film
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