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http://dx.doi.org/10.5757/JKVS.2007.16.1.065

Soft lithographic patterning of proteins and cells inside a microfluidic channel  

Suh, Kahp-Yang (School of Mechanical and Aerospace Engineering, Seoul National University)
Publication Information
Journal of the Korean Vacuum Society / v.16, no.1, 2007 , pp. 65-73 More about this Journal
Abstract
The control of surface properties and spatial presentation of functional molecules within a microfluidic channel is important for the development of diagnostic assays, microreactors, and for performing fundamental studies of cell biology and fluid mechanics. Here, we present soft lithographic methods to create robust microchannels with patterned microstructures inside the channel. The patterned regions were protected from oxygen plasma by controlling the dimensions of the poly(dimethylsiloxane)(PDMS) mold as well as the sequence of fabrication steps. The approach was used to pattern a non-biofouling polyethylene glycol(PEG)-based copolymer or the polysaccharide hyaluronic acid(HA) within microfluidic channels. These non-biofouling patterns were then used to fabricate arrays of fibronectin(FN) and bovine serum albumin(BSA) as well as mammalian cells.
Keywords
Microfluidics; Soft lithography; Patterning; Protein; Cell;
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