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. 2022 Jul 17;27(14):4553. doi: 10.3390/molecules27144553

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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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(A) Particle size and Zeta potential of preparations with different concentrations of PEI. (B) Particle size and (C) Zeta potential of HA₂₀-KA-NLC and HA₁₃₀-KA-NLC with different concentrations of HA. TEM images of (D) HA₂₀-KA-NLC and (E) HA₁₃₀-KA-NLC. The change of (F) particle size, (G) PDI, and (H) Zeta potential over 30 days of experiments, depending on the storage conditions.