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A microfluidics vapor-membrane-valve generated by laser irradiation on carbon nanocoils

We have investigated a micro vapor membrane valve (MVMV) for closing the microfluidic channels by laser irradiation on carbon nanocoils (CNCs) attached to the inner wall of the microchannels. The microchannel with MVMVs was found to exhibit a “closed” state without the supply of laser energy, which...

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Detalles Bibliográficos
Autores principales: Liu, Yuli, Li, Chengwei, Zhao, Ming, Shen, Jian, Pan, Lujun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10326470/
https://www.ncbi.nlm.nih.gov/pubmed/37425625
http://dx.doi.org/10.1039/d3ra01148h
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author Liu, Yuli
Li, Chengwei
Zhao, Ming
Shen, Jian
Pan, Lujun
author_facet Liu, Yuli
Li, Chengwei
Zhao, Ming
Shen, Jian
Pan, Lujun
author_sort Liu, Yuli
collection PubMed
description We have investigated a micro vapor membrane valve (MVMV) for closing the microfluidic channels by laser irradiation on carbon nanocoils (CNCs) attached to the inner wall of the microchannels. The microchannel with MVMVs was found to exhibit a “closed” state without the supply of laser energy, which is explained on the basis of the theory of heat and mass transfer. Multiple MVMVs for sealing the channels can be generated in sequence and exist simultaneously at different irradiation sites, independently. The significant advantages of the MVMV generated by the laser irradiation on CNCs are the elimination of extrinsic energy required to maintain the microfluidic channel “closed” state and the simplification of the structure integrated into the microfluidic channels and fluid control circuitries. The CNC-based MVMV is a powerful tool for the investigations of the functions of microchannel switching and sealing on microfluidic chips in biomedicine, chemical analysis and other fields. The study of MVMVs will have great significance for biochemical and cytological analysis.
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spelling pubmed-103264702023-07-08 A microfluidics vapor-membrane-valve generated by laser irradiation on carbon nanocoils Liu, Yuli Li, Chengwei Zhao, Ming Shen, Jian Pan, Lujun RSC Adv Chemistry We have investigated a micro vapor membrane valve (MVMV) for closing the microfluidic channels by laser irradiation on carbon nanocoils (CNCs) attached to the inner wall of the microchannels. The microchannel with MVMVs was found to exhibit a “closed” state without the supply of laser energy, which is explained on the basis of the theory of heat and mass transfer. Multiple MVMVs for sealing the channels can be generated in sequence and exist simultaneously at different irradiation sites, independently. The significant advantages of the MVMV generated by the laser irradiation on CNCs are the elimination of extrinsic energy required to maintain the microfluidic channel “closed” state and the simplification of the structure integrated into the microfluidic channels and fluid control circuitries. The CNC-based MVMV is a powerful tool for the investigations of the functions of microchannel switching and sealing on microfluidic chips in biomedicine, chemical analysis and other fields. The study of MVMVs will have great significance for biochemical and cytological analysis. The Royal Society of Chemistry 2023-07-07 /pmc/articles/PMC10326470/ /pubmed/37425625 http://dx.doi.org/10.1039/d3ra01148h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Liu, Yuli
Li, Chengwei
Zhao, Ming
Shen, Jian
Pan, Lujun
A microfluidics vapor-membrane-valve generated by laser irradiation on carbon nanocoils
title A microfluidics vapor-membrane-valve generated by laser irradiation on carbon nanocoils
title_full A microfluidics vapor-membrane-valve generated by laser irradiation on carbon nanocoils
title_fullStr A microfluidics vapor-membrane-valve generated by laser irradiation on carbon nanocoils
title_full_unstemmed A microfluidics vapor-membrane-valve generated by laser irradiation on carbon nanocoils
title_short A microfluidics vapor-membrane-valve generated by laser irradiation on carbon nanocoils
title_sort microfluidics vapor-membrane-valve generated by laser irradiation on carbon nanocoils
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10326470/
https://www.ncbi.nlm.nih.gov/pubmed/37425625
http://dx.doi.org/10.1039/d3ra01148h
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