摘要
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 in-situ 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 in-vivo.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.
基金
We gratefully acknowledge MOST(2014CB932200)
“Young Thousand Talents Program”,and NSFC(21674120,81630056,21504096,51573195,21474115 and 21174147)for financial support.
