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. Author manuscript; available in PMC: 2021 Nov 29.
Published in final edited form as: AAPS J. 2018 Mar 8;20(2):41. doi: 10.1208/s12248-018-0201-1

Fig. 4.

Fig. 4.

a The structure of nano-IMEX biochip. b The mechanism of exosome capturing and analysis on nano-IMEX biochip. Graphene oxide and polydopamine coating-generated nanostructures on the surface and increased the antibody immobilization density. The Y-shaped microposts facilitated the interaction between exosomes and antibodies and thus enhanced the exosome capture efficiency. Exosomal protein levels were measured by immunofluorescence. Figures are adapted from Ref. (34) with permission from the Royal Society of Chemistry.