Low cost fabrication of microfluidic microchannels for Lab-On-a-Chip applications

Microfluidic systems are one of the new growing technologies which offer miniaturization of analysis systems. In this paper we present a simple and low cost fabrication of microchannels using in different applications in Micro Total Analysis Systems. This method uses typical microscopic glass slides as a substrate for fabrication of microchannels. Using photo-resist as a mask instead of some deposition methods makes the procedure more convenient and cost effective compare to other techniques. A smooth channel surface with acceptable sharp wall edges makes this procedure suitable for so many applications that vertical walls are not crucial. The comparison between fabrication of channels using wet etching procedures and molding techniques can help to select the more suitable one for any application which needs specific characteristics.