Large-Scale Orientation Dependent Heating from a Single Irradiated Gold Nanorod

被引：80

作者：

Ma, Haiyan ^{[1
]}

Bendix, Poul M. ^{[1
]}

Oddershede, Lene B. ^{[1
]}

机构：

[1] Univ Copenhagen, Niels Bohr Inst, DK-1168 Copenhagen, Denmark

来源：

NANO LETTERS | 2012年 / 12卷 / 08期

关键词：

Gold nanorod; photothermal effect; lipid bilayer; molecular partitioning; surface plasmon resonance; polarization; NANOSTRUCTURES; NANOPARTICLES; SCATTERING; THERAPY; SURFACE; LIGHT;

D O I：

10.1021/nl3010918

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We quantify the extreme heating associated with resonant irradiation of individual gold nanorods by using a novel assay based on partitioning of lipophilic dyes between membrane phases. The temperature increase is sensitively dependent on the angle between the laser polarization and the orientation of the nanorod. A dramatic and irreversible decrease in the heating of a nanorod occurs at high. illumination intensities; this effect is attributed to surface melting of the nanorod causing it to restructure into a more spherical shape and lose its extreme photothermal properties.

引用

页码：3954 / 3960

页数：7