Embedded Template-Assisted Fabrication of Complex Microchannels in PDMS and Design of a Microfluidic Adhesive

Autor:	M. K. S. Verma, Animangsu Ghatak, and Abhijit Majumder
Rok vydání:	2006
Předmět:	Fabrication Microchannel Materials science Microfluidics Nanotechnology Surfaces and Interfaces Thread (computing) Condensed Matter Physics Nylon thread Adhesion strength Electrochemistry General Materials Science Adhesive Spectroscopy
Zdroj:	Langmuir. 22:10291-10295
ISSN:	1520-5827 0743-7463
Popis:	In this paper, we describe a novel method for fabricating 2-D and 3-D microchannel patterns in a flexible platform of cross-linked poly(dimethylsiloxane) (PDMS). Here, a slender nylon thread formed into different 2-D and 3-D shapes is used as a template that is embedded inside a block of cross-linked PDMS. The cross-linked network is then allowed to swell in a suitable solvent that swells the network selectively but leaves the nylon thread unaltered. The thread is then gently removed from the swollen network leaving behind a microchannel. Channels of a variety of topologically complex orientations like knots, helices, super-helices, and channels of a variety of cross-sections can be generated using this simple method. Finally, we have presented an application by generating inside layers of adhesive in these microchannels, which are observed to enhance the adhesion strength significantly.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48c9345471b6ef2b9f0454a10014826d https://doi.org/10.1021/la062516n Zobrazit plný text záznamu