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. 2019 Jan 17;13:5. doi: 10.1186/s13036-018-0131-6

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 15 — Cell assembly mediated by PEM backpack attachment on macrophage. (a) The design of multilayer PEM backpack. (b) The backpack attachment was through HA-CD44 interaction on CD44-present macrophage. CHI = chitosan; HA= hyaluronic acid ; MNP= magnetic nanoparticles; PAH= ; PLGA = poly(lactide-co-glycolide); PMAA = poly(methacrylic acid); DiO= 3,3′-Dioctadecyloxacarbocyanine Perchlorate; PVPON= poly(vinylpyrrolidone); PAH= poly(allylamine hydrochloride). Reprinted from [56], Copyright 2010, with permission from American Chemical Society (https://pubs.acs.org/doi/abs/10.1021%2Fbm100305h)