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Nano-interfaced microfluidic exosome platform (nano-IMEX). (a) Schematic of a single-channel PDMS/glass device, with the exploded-view highlighting the coated PDMS chip containing an array of Y-shaped microposts. (b) Schematic showing the surface of the channel and microposts coated with graphene oxide (GO) and polydopamine (PDA). (c) The protocol involved in the surface functionalization of the microfluidic chips. (Reproduced from Zhang P. et al. [79]. Copyright 2016, Lab Chip).
