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. 2022 Oct 26;415(7):1265–1285. doi: 10.1007/s00216-022-04362-3

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© The Author(s) 2022

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Fig. 7 — Ciliated micropillars for EV isolation. The spacing of the pillars filters out larger particles. The spacing of the cilia allows for capture of EVs, whilst letting free protein through. a–c SEM images of the micropillars. Reproduced from [20] with permission from the Royal Society of Chemistry