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
收藏
页码：3954 / 3960
页数：7
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