Construction of versatile multilayered composite nanoparticles from a customized nanogel template.

Zhang, Jian; Jia, Jinpeng; Kim, Jimin P; Yang, Fei; Wang, Xing; Shen, Hong; Xu, Sijia; Yang, Jian et al. · Bioact Mater · 2018

basic_science · Level V

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Abstract

We present a highly adaptable design platform for multi-responsive, multilayered composite nanoparticles (MC-NPs) with fine-tunable functional layers. A flexible disulfide-linked nanogel template is obtained by a controlled <i>in-situ</i> gelation method, enabling a high degree of control over each successive layer. From this template, we optimize "smart" biomaterials with biofunctional surfaces, tunable drug release kinetics, and magnetic or pH-responsive functionality, fabricated into MC-NPs for targeted drug release and periosteum-mimetic structures for controlled rhBMP-2 release towards bone tissue formation <i>in-vivo</i>. Such a versatile platform for the design of MC-NPs is a powerful tool that shows considerable therapeutic potential in clinical fields such as oncology and orthopedics.