Integration of hydrogels with hard and soft microstructures.

Integration of hydrogels with hard and soft microstructures. Research Abstract Details 

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Integration of hydrogels with hard and soft microstructures. Abstract Text:

Ming Lei,Babak Ziaie,Eric Nuxoll, , Noszticzius,Ronald A Siegel,

Hydrogels, i.e., water-swollen polymer networks, have been studied and utilized for decades. These materials can either passively support mass transport, or can actively respond in their swelling properties, enabling modulation of mass and fluid transport, and chemomechanical actuation. Response rates increase with decreasing hydrogel dimension. In this paper, we present three examples where incorporation of hydrogels into solid microstructures permits acceleration of their response, and also provides novel functional capabilities. In the first example, a hydrogel is immobilized inside microfabricated pores within a thin silicon membrane. This hydrogel does not have a swelling response under the conditions investigated, but under proper conditions it can be utilized as a part of an electrolytic diode. In the second example, hydrogels are polymerized under microcantilever beams, and their swelling response to pH or glucose concentration causes variable deflection of the beam, observable under a microscope. In the third example, swelling and shrinking of a hydrogel embedded in a microfabricated valve structure leads to chemical gating of fluid motion through that valve. In all cases, the small size of the system enhances its response rate.

Integration of hydrogels with hard and soft microstructures. Publishing Authors By Initials

M Lei,B Ziaie,E Nuxoll,K ,Z Noszticzius,RA Siegel,

For similar natural sciences: nanotechnology research abstracts see: natural sciences: nanotechnology research

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MEDLINE DATE:

Integration of hydrogels with hard and soft microstructures. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Journal of nanoscience and nanotechnology

VOLUME: 7

Page Numbers: 780-9

Journal Abbreviation:

ISSN: 1533-4880

DAY: 3

MONTH: Mar

YEAR: 2007

Integration of hydrogels with hard and soft microstructures. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 101088195

Integration of hydrogels with hard and soft microstructures. Keywords Mesh Terms:

KEYWORDS: Nanotechnology

MESH TERMS: analysis

Chemical & Substance for Abstract: Integration of hydrogels with hard and soft microstructures. Information

Substance Name: Glucose

Registry Number: 50-99-7

Grant and Affiliation Information for Integration of hydrogels with hard and soft microstructures.

AFFILIATION: Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455, USA.

Country: United States

AGENCY: United States NIBIB

GRANT: EB003125

ACRONYM: EB

MEDLINETA: J Nanosci Nanotechnol

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