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. 2021 Apr 23;13(5):614. doi: 10.3390/pharmaceutics13050614

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© 2021 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 (https://creativecommons.org/licenses/by/4.0/).

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Characterization of PVP, PVP/Lipo + EVL, and PVP/Lipo + EVL/PVP-coated surface of Nylon tubes. (A) SEM images of the coated surface (Scale bars equal to 400 μm). (B) Fluorescence images of the coated surface using FOBI. GreenL 5(6)-Carboxyfluorescein-stained PVP, Red: Nile red-labeled liposome. (C) AFM images for surface roughness evaluation. (D) ATR-FTIR analysis for Nylon tube surface coated with PVP, PVP/Lipo + EVL, and PVP/Lipo + PVP/PVP. (a) Bare Nylon tube, (b) PVP-coated Nylon tube, (c) PVP/Lipo + EVL-coated Nylon tube, and (d) PVP/Lipo + EVL/PVP-coated Nylon tube.