Figure 3: Fabrication process of the Bio-PDMS microfluidic device:(a) untreated, but cleaned glass substrate; (b)hydrophilic treated glass substrate; (c)DOD printing liquid mold on the treated glass substrate; (d)pouring the PDMS on the liquid mold and cured; (e)peeling off the cured PDMS concave mold from the substrate and drilling (f) the PDMS concave mold was bonded with a PDMS substrate.