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. 2022 Apr 18;12(4):257. doi: 10.3390/bios12040257

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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TEM and AFM imaging of exosomes isolated by aptamer-based microfluidics. (A) TEM image of EVs isolated by microfluidics presents a distorted cup-shaped morphology and uniform unimodal size distribution following 200 nm filtration. (B) AFM image EVs isolated by microfluidics presents a distorted cup-shaped morphology.