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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/).
Illustrative DLS spectrum and AFM images of (A) DLS spectrum of void PLGA NPs here size is 95.5 nm, (B) AFM image of void PLGA NPs here average size is 70 nm, (C) DLS spectrum of PLGA-PEI-EPI-PTX NPs here size is 241.3 nm, (D) AFM image of PLGA-PEI-EPI-PTX NPs here average size is 140 nm.