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. 2022 Jan 3;14(1):108. doi: 10.3390/pharmaceutics14010108

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© 2022 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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Cryo-TEM images of the produced unloaded anionic liposomes visualized after extrusion. Plain-LP (a), LP-SD (b), LP-NLS (c), LP-PAG (d) and LP-SLL (e), Bar corresponds to 250 nm.