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Updated: Jun 5, 2026

Synthesis of Aptamer-PEI-g-PEG Modified Gold Nanoparticles Loaded with Doxorubicin for Targeted Drug Delivery
Published on: June 23, 2020
Polyaspartamide-graft-polymethacrylate nanoparticles for doxorubicin delivery
Mariano Licciardi1, Gennara Cavallaro, Mauro Di Stefano
1Department of Chimica e Tecnologie Farmaceutiche, Laboratory of Biocompatible Polymers, University of Palermo, Via Archirafi, 32 90129 Palermo, Italy.
Abstract:
A new PHEA-IB-PMANa(+) copolymer has been synthesized and its pH-induced self-assembly has been investigated in an aqueous medium. PHEA-IB-PMANa+ formed nanoparticles with diameters from 25 to 50 nm upon protonation of the carboxylic acid moieties dislocated along the grafted polymethacrylate sodium salt side chains. The physico-chemical characterization of the nanoparticles was performed using light scattering, zeta-potential measurements, SEM, and AFM. Doxorubicin-loaded nanoparticles were prepared and drug release profiles were evaluated under conditions mimicking physiological media. A biological characterization was carried out by testing the cytotoxicity on Caco-2 cells, and cellular uptake on mouse monocyte macrophage (J774 A.1) and Caco-2 cells.

