作者: Guopu Chen , Yunru Yu , Xiuwen Wu , Gefei Wang , Guosheng Gu
关键词: Absorption (skin) 、 Zinc 、 Metal-organic framework 、 Superoxide dismutase 、 Wound healing 、 Membrane 、 Chemical engineering 、 Niacin 、 Chemistry 、 Metal ions in aqueous solution
摘要: Niacin metal-organic frameworks (MOFs) encapsulated microcapsules with alginate shells and copper-/zinc-niacin framework cores were in situ synthesized by using a microfluidic electrospray approach for wound healing. As the bacteria-responsively degradable, niacin MOFs could intelligently, controllably, programmably release calcium, copper, zinc ions, depending on degree of infections. The released ions not only kill microbes destroying their membrane inducing outflow nutrient substance, but also activate copper/zinc superoxide dismutase (Cu/Zn-SOD) to eliminate oxygen free radicals rescue cells from oxidative stress injury. Furthermore, simultaneously promote hemangiectasis absorption functional metal ions. Thus, imparted outstanding antibacterial, antioxidant, angiogenesis properties. Based an vivo study, we have demonstrated that chronic healing process infected full-thickness skin defect model be significantly enhanced as therapeutic agent. Therefore, are potential clinical applications.