Abstract
Nowadays, lab on a chip (LOC) applications are very popular in the field of biomedicine. LOC device works with biological materials and enables to arrange conventional laboratory operations on a small chip. Philosophy of LOC applications stands on quick and precise diagnostics process and technology, which uses cheap materials with possibility of rapid prototyping. LOC, as a time saving application, works with small volume of samples and reagents and enables better control over the sample. We present fabrication method of functional LOC chip for different biomedical microfluidic applications based on direct laser writing (DLW) lithography. We present fabrication of few types of microfluidic and micro-optic structures with different capabilities created by DLW system. The combination of DLW lithography in photoresist layer deposited on glass substrate and polydimethylsiloxane (PDMS) replica molding process were used for patterning of designed microstructures. Prepared microfluidic and micro-optic structures were observed by confocal microscope and microfluidic flow observations were investigated by conventional optical microscope and CCD camera.
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