A hydrogel-actuated microvalve for smart flow control

In this paper, we report on the fabrication and testing of a hydrogel-actuated smart microvalve for biomedical applications. The three-layered microvalve is composed of a stimuli-sensitive ìintelligentî hydrogel sandwiched between a porous silicon membrane and a bossed PDMS flexible diaphragm. The...

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Main Authors:	Lei, Ming, Wan Salim, Wan Wardatul Amani, Siegel, Ronald A., Ziaie, Babak
Format:	Conference or Workshop Item
Language:	English
Published:	IEEE 2004
Subjects:	QC Physics T Technology (General)
Online Access:	http://irep.iium.edu.my/44329/ http://irep.iium.edu.my/44329/ http://irep.iium.edu.my/44329/ http://irep.iium.edu.my/44329/7/44329%20A%20Hydrogel-Actuated%20Microvalve.pdf

id	iium-44329
recordtype	eprints
spelling	iium-443292020-02-11T02:05:09Z http://irep.iium.edu.my/44329/ A hydrogel-actuated microvalve for smart flow control Lei, Ming Wan Salim, Wan Wardatul Amani Siegel, Ronald A. Ziaie, Babak QC Physics T Technology (General) In this paper, we report on the fabrication and testing of a hydrogel-actuated smart microvalve for biomedical applications. The three-layered microvalve is composed of a stimuli-sensitive ìintelligentî hydrogel sandwiched between a porous silicon membrane and a bossed PDMS flexible diaphragm. The entrapped hydrogel in response to changes in the external physiological stimuli (e.g., pH, glucose, etc.), which diffuses through the porous membrane, swelles and deswelles hence deflecting the flexible PDMS diaphragm and controlling the closure and opening of the microvalve inlet. A microvalve incorporating a 155µm thick hydrogel (poly(methacrylic acid-co-acrylamide), mAA-co-AAm) has a response time of 3.6 min to a sudden pH change (pH=3 to pH=7). IEEE 2004-03-14 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/44329/7/44329%20A%20Hydrogel-Actuated%20Microvalve.pdf Lei, Ming and Wan Salim, Wan Wardatul Amani and Siegel, Ronald A. and Ziaie, Babak (2004) A hydrogel-actuated microvalve for smart flow control. In: Proceedings of the IEEE Engineering Medical Biology Society(EMBS), 1st-5th September 2004, San Francisco, CA, USA. https://ieeexplore.ieee.org/document/1403600 10.1109/IEMBS.2004.1403600
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	QC Physics T Technology (General)
spellingShingle	QC Physics T Technology (General) Lei, Ming Wan Salim, Wan Wardatul Amani Siegel, Ronald A. Ziaie, Babak A hydrogel-actuated microvalve for smart flow control
description	In this paper, we report on the fabrication and testing of a hydrogel-actuated smart microvalve for biomedical applications. The three-layered microvalve is composed of a stimuli-sensitive ìintelligentî hydrogel sandwiched between a porous silicon membrane and a bossed PDMS flexible diaphragm. The entrapped hydrogel in response to changes in the external physiological stimuli (e.g., pH, glucose, etc.), which diffuses through the porous membrane, swelles and deswelles hence deflecting the flexible PDMS diaphragm and controlling the closure and opening of the microvalve inlet. A microvalve incorporating a 155µm thick hydrogel (poly(methacrylic acid-co-acrylamide), mAA-co-AAm) has a response time of 3.6 min to a sudden pH change (pH=3 to pH=7).
format	Conference or Workshop Item
author	Lei, Ming Wan Salim, Wan Wardatul Amani Siegel, Ronald A. Ziaie, Babak
author_facet	Lei, Ming Wan Salim, Wan Wardatul Amani Siegel, Ronald A. Ziaie, Babak
author_sort	Lei, Ming
title	A hydrogel-actuated microvalve for smart flow control
title_short	A hydrogel-actuated microvalve for smart flow control
title_full	A hydrogel-actuated microvalve for smart flow control
title_fullStr	A hydrogel-actuated microvalve for smart flow control
title_full_unstemmed	A hydrogel-actuated microvalve for smart flow control
title_sort	hydrogel-actuated microvalve for smart flow control
publisher	IEEE
publishDate	2004
url	http://irep.iium.edu.my/44329/ http://irep.iium.edu.my/44329/ http://irep.iium.edu.my/44329/ http://irep.iium.edu.my/44329/7/44329%20A%20Hydrogel-Actuated%20Microvalve.pdf
first_indexed	2023-09-18T21:03:03Z
last_indexed	2023-09-18T21:03:03Z
_version_	1777410751269437440

A hydrogel-actuated microvalve for smart flow control

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