Microfluidic systems have become part of our everyday life, with surface microfluidics occupying its niche in instant diagnostics and point-of-care testing. Implementing surface microfluidics on a large scale appears to be impossible without developing or upgrading manufacturing technologies. Our paper proposes a CO2-laser microtechnology of precise fused silica surface processing. Key microfluidic elements-microchannels, input and deposition reservoirs have been designed, fabricated and tested with picoliter volumes of fluids. Optical transmittance of the elements remains high enough to observe reactions in a microfluidic system by means of optical methods. The above research and its results would contribute to making laser microtechnologies available to a wide range of experimental and commercial users of microfluidics.
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