Trapping of nanoparticles in a liquid by laser-induced microbubbles

被引：20

作者：

Yusupov, V. I. ^{[1
]}

Tsypina, S. I. ^{[2
]}

Bagratashvili, V. N. ^{[2
]}

机构：

[1] Russian Acad Sci, Far Eastern Branch, VI Ilichev Pacific Oceanol Inst, Vladivostok 690041, Russia

[2] Russian Acad Sci, Inst Laser & Informat Technol, Troitsk 142190, Russia

来源：

LASER PHYSICS LETTERS | 2014年 / 11卷 / 11期

基金：

俄罗斯基础研究基金会;

关键词：

nanoparticles; colloid; microbubble; laser trapping; Marangoni convection; surface; OPTICAL TWEEZERS; PARTICLES; BUBBLE; FIELD; MANIPULATION; FORCE; DNA; MICROMANIPULATION; HYDRODYNAMICS; LIGHT;

D O I：

10.1088/1612-2011/11/11/116001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Nanoparticles a few nanometers in diameter contained in a colloidal solution can be captured by the surface of a microbubble produced by a well-focused beam of a continuous wave visible laser. The concentration of the nanoparticles on the surface of the microbubble is found to gradually increase during the course of irradiation. The mechanism of such a trapping is associated with the laser-induced Marangoni convection developing in the vicinity of the microbubble as a result of the temperature gradient obtained at its surface.

引用

页数：5

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