Role of thermal effect on the capture stability of plasmonic optical tweezers

Plasmonic optical tweezers exhibit excellent potential in the manipulation of nanoparticles, which advances the fields of nano medicine, chemical and biological sensing, and robotics. However, the capture stability of nanoparticles is affected by the heat generation of the plasmon nanostructure. Thi...

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Main Authors: Yukun Ji, Yatao Ren, Xuehui Wang, Hong Qi
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Case Studies in Thermal Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214157X24015909
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author Yukun Ji
Yatao Ren
Xuehui Wang
Hong Qi
author_facet Yukun Ji
Yatao Ren
Xuehui Wang
Hong Qi
author_sort Yukun Ji
collection DOAJ
description Plasmonic optical tweezers exhibit excellent potential in the manipulation of nanoparticles, which advances the fields of nano medicine, chemical and biological sensing, and robotics. However, the capture stability of nanoparticles is affected by the heat generation of the plasmon nanostructure. This work investigates the influence of the thermoplasmonic effect of gold nanobrick antenna on the optical capture of nanoparticles. Due to the enhancement of local electromagnetic field and strong heat generation of gold nanobrick antenna, various optothermo-matter interactions will occur. On this basis, the effects of optical, thermophoretic, and thermo-osmotic forces on the motion of Brownian nanoparticles are analyzed. Afterward, the factors that affect the capture efficiency are investigated. The results indicate that the photothermal effect of nanobrick antenna can reduce the capture efficiency of nanoparticles. In addition, increasing the refractive index or diameter of nanoparticles, thermal conductivity of the substrate, and incident laser power can improve the capture efficiency.
format Article
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institution Kabale University
issn 2214-157X
language English
publishDate 2025-01-01
publisher Elsevier
record_format Article
series Case Studies in Thermal Engineering
spelling doaj-art-8567abe133fb44ca9d07c359132ca8882025-01-08T04:52:31ZengElsevierCase Studies in Thermal Engineering2214-157X2025-01-0165105559Role of thermal effect on the capture stability of plasmonic optical tweezersYukun Ji0Yatao Ren1Xuehui Wang2Hong Qi3School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, ChinaSchool of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China; Corresponding author.School of Mechanical & Materials Engineering, University College Dublin, Belfield, Dublin 4, IrelandSchool of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, ChinaPlasmonic optical tweezers exhibit excellent potential in the manipulation of nanoparticles, which advances the fields of nano medicine, chemical and biological sensing, and robotics. However, the capture stability of nanoparticles is affected by the heat generation of the plasmon nanostructure. This work investigates the influence of the thermoplasmonic effect of gold nanobrick antenna on the optical capture of nanoparticles. Due to the enhancement of local electromagnetic field and strong heat generation of gold nanobrick antenna, various optothermo-matter interactions will occur. On this basis, the effects of optical, thermophoretic, and thermo-osmotic forces on the motion of Brownian nanoparticles are analyzed. Afterward, the factors that affect the capture efficiency are investigated. The results indicate that the photothermal effect of nanobrick antenna can reduce the capture efficiency of nanoparticles. In addition, increasing the refractive index or diameter of nanoparticles, thermal conductivity of the substrate, and incident laser power can improve the capture efficiency.http://www.sciencedirect.com/science/article/pii/S2214157X24015909Plasmonic optical tweezerThermoplasmonicsPhotothermal effectNanoparticle captureThermophoreticThermo-osmotic
spellingShingle Yukun Ji
Yatao Ren
Xuehui Wang
Hong Qi
Role of thermal effect on the capture stability of plasmonic optical tweezers
Case Studies in Thermal Engineering
Plasmonic optical tweezer
Thermoplasmonics
Photothermal effect
Nanoparticle capture
Thermophoretic
Thermo-osmotic
title Role of thermal effect on the capture stability of plasmonic optical tweezers
title_full Role of thermal effect on the capture stability of plasmonic optical tweezers
title_fullStr Role of thermal effect on the capture stability of plasmonic optical tweezers
title_full_unstemmed Role of thermal effect on the capture stability of plasmonic optical tweezers
title_short Role of thermal effect on the capture stability of plasmonic optical tweezers
title_sort role of thermal effect on the capture stability of plasmonic optical tweezers
topic Plasmonic optical tweezer
Thermoplasmonics
Photothermal effect
Nanoparticle capture
Thermophoretic
Thermo-osmotic
url http://www.sciencedirect.com/science/article/pii/S2214157X24015909
work_keys_str_mv AT yukunji roleofthermaleffectonthecapturestabilityofplasmonicopticaltweezers
AT yataoren roleofthermaleffectonthecapturestabilityofplasmonicopticaltweezers
AT xuehuiwang roleofthermaleffectonthecapturestabilityofplasmonicopticaltweezers
AT hongqi roleofthermaleffectonthecapturestabilityofplasmonicopticaltweezers