Two-photon-induced photoluminescence imaging of tumors using near-infrared excited gold nanoshells

被引：159

作者：

Park, Jaesook ^{[1
]}

Estrada, Arnold ^{[1
]}

Sharp, Kelly ^{[2
]}

Sang, Krystina ^{[2
]}

Schwartz, Jon A. ^{[2
]}

Smith, Danielle K. ^{[3
]}

Coleman, Chris ^{[2
]}

Payne, J. Donald ^{[2
]}

Korgel, Brian A. ^{[3
]}

Dunn, Andrew K. ^{[1
]}

Tunnell, James W. ^{[1
]}

机构：

[1] Univ Texas Austin, Dept Biomed Engn, Austin, TX 78712 USA

[2] Nanospectra Biosci Inc, Houston, TX 77054 USA

[3] Univ Texas Austin, Dept Chem Engn, Austin, TX 78712 USA

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 03期

关键词：

D O I：

10.1364/OE.16.001590

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Gold nanoshells (dielectric silica core/gold shell) are a novel class of hybrid metal nanoparticles whose unique optical properties have spawned new applications including more sensitive molecular assays and cancer therapy. We report a new photo-physical property of nanoshells (NS) whereby these particles glow brightly when excited by near-infrared light. We characterized the luminescence brightness of NS, comparing to that of gold nanorods (NR) and fluorescent beads (FB). We find that NS are as bright as NR and 140 times brighter than FB. To demonstrate the potential application of this bright two-photon-induced photoluminescence (TPIP) signal for biological imaging, we imaged the 3D distribution of gold nanoshells targeted to murine tumors. (c) 2008 Optical Society of America.

引用

页码：1590 / 1599

页数：10

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