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Updated: Dec 24, 2025

Preparation of Neutrally-charged, pH-responsive Polymeric Nanoparticles for Cytosolic siRNA Delivery
Published on: May 2, 2019
Functionalization of dendritic polyethylene with cationic poly(p-phenylene ethynylene) enables efficient siRNA
Ling Zhang1, Qi-He Yin, Jin-Ming Li
1DSAPM Lab, PCFM Lab, OFCM Institute, MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China. ceszl@mail.sysu.edu.cn.
Abstract:
A novel system based on a dendritic polyethylene-cationic poly(p-phenylene ethynylene) polyvalent nanocarrier was developed for siRNA delivery. By using the combination of a molecular wire and a "dendritic effects" strategy, this design provides the nanocarrier system with low cytotoxicity, cellular imaging and high siRNA delivery efficiency, allowing it to exhibit remarkable gene knockdown abilities as well as real-time monitoring of the siRNA delivery process.
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