Short Review on Nanofluidics with the Experimental Demonstration on Microfluidic Capillary Flow inside Microchannel Bends

In this research work, author has presented a short review on nanofluidics. Total three individual microchannel bends as microfluidic devices are designed, fabricated and tested in this experimental work using author’s own hands-on completely. Polymethylmethacrylate (PMMA) is the selected polymeric material to fabricate these microfluidic devices. Dyed water is prepared as working liquid to test these microfluidic devices. According to this experimental study, the surface-driven microfluidic flow of dyed water is faster in the microchannel of higher channel aspect ratio inside the microchannel bends. The surface-driven microfluidic flow of dyed water is faster due to the effect of centrifugal force inside the microchannel bends. This experimental work may be useful to develop the nanofluidic devices and systems in future by an experimental transition from microfluidics to nanofluidics.