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. Author manuscript; available in PMC: 2024 Feb 2.
Published in final edited form as: Methods Mol Biol. 2022;2394:171–183. doi: 10.1007/978-1-0716-1811-0_11

Fig. 4.

Fig. 4

Schematic of the operating principles of exo-node-pore sensing (exo-NPS). Extracellular vesicles (EVs) originating from specific cells are captured on colloids coated with antibodies for markers presented on the surface of the target EVs. Binding of EVs increases the effective size of the colloids, which is measured using a two-pore NPS device (exo-NPS)