Two-Photon Excited Fluorescence Enhancement for Ultrasensitive DNA Detection on Large-Area Gold Nanopatterns

被引：35

作者：

Jung, Jin-Mi ^{[1
,2
]}

Yoo, Hae-Wook ^{[1
]}

Stellacci, Francesco ^{[2
]}

Jung, Hee-Tae ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn BK 21, Taejon 305701, South Korea

[2] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

ADVANCED MATERIALS | 2010年 / 22卷 / 23期

关键词：

PLASMON; SURFACE; FLUOROPHORES; DISTANCE;

D O I：

10.1002/adma.200903745

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ultrasensitive DNA detection using enhanced two-photon excited fluorescence: DNA detection systems formed on a highly regular gold nanopattern over a large area show enhanced sensitivity from high to ultralow concentrations (similar to 10-11 M, see figure) target molecules. The observed two-photon excited fluorescence on the gold patterned surface is enhanced over two orders of magnitude compared with the molecules on the glass surface.

引用

页码：2542 / 2546

页数：5

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