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. 2020 Sep 7;21(18):6544. doi: 10.3390/ijms21186544

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© 2020 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 (http://creativecommons.org/licenses/by/4.0/).

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(a) Scanning electron microscopic (SEM) images of bare porous Ti6Al4V scaffolds (pTi) and polydopamine-assisted hydroxyapatite coating on titanium surfaces (HA/pDA-pTi). Fluorescent staining of MC3T3-E1 cells adhered to pTi and HA/pDA-pTi scaffolds, and (b) analysis of morphology of SEM images as shown in panel a and (c) fluorescence intensity of vinculin staining for cells on different scaffolds. Asterisks (*) indicate statistical significance compared to the pTi group, p < 0.05). Reprinted with permission from reference [55]. Copyright (2015) American Chemical Society.