Theoretical investigation on the effect of volume fraction in the optical trapping of gold nanoparticles

被引：3
作者：
Zhu, Zheng [1 ,2 ]
Zhang, YuQuan [1 ,2 ]
Adam, Aurele J. L. [3 ]
Min, Changjun [1 ,2 ]
Urbach, H. Paul. [3 ]
Yuan, Xiaocong [1 ,2 ]
机构：
[1] Shenzhen Univ, Nanophoton Res Ctr, Shenzhen Key Lab Microscale Opt Informat Technol, Shenzhen 518060, Peoples R China
[2] Shenzhen Univ, Inst Microscale Optoelect, Shenzhen 518060, Peoples R China
[3] Delft Univ Technol, Opt Res Grp, Lorentzweg 1, NL-2628 CJ Delft, Netherlands
来源：
OPTICS COMMUNICATIONS | 2023年 / 541卷
基金：
中国国家自然科学基金;
关键词：
Optical tweezer; Optical force; Optical potential well; Gold nanoparticle; APPROXIMATION; MANIPULATION; PARTICLES; TWEEZERS; FORCE; DNA;
D O I：
10.1016/j.optcom.2023.129572
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Stable optical trapping of gold nanoparticles is essential and desirable because of its wide applications nanotechnology. While several factors have been proposed to affect optical trapping stability, the sample's volume fraction during optical trapping has often been neglected. To address this, by utilizing the effective medium theory, we analyze the stability of optical trapping of a gold nanoparticle in human serum albumin solutions, HIV-1,virus solutions, and gold nanoparticle solutions in this article. Our comparative analysis the optical force and potential on a single gold nanoparticle in solutions of varying volume fractions reveals that both parameters decrease with increasing volume fraction. This finding can aid in more effective control of gold nanoparticles in various applications.
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页数：6
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