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. 2019 May 13;17:64. doi: 10.1186/s12951-019-0498-7

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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. 2 — Characterization of FITC-PAMAM coated liposomes. a Verification of FITC onto PAMAM G3.0 via ¹H-NMR. b SEM image of FITC-PAMAM coated liposomes (scale bar = 1 μm). c The appearance of CBLs and P-CBLs taken with camera. d TEM images of CBLs and P-CBLs, the red arrow indicates the P-CBLs and white indicates CBLs (scale bar = 100 nm)