Polylactic acid-titanium oxide micro-nano multi-stage structure composite microsphere material and application thereof
作者： Zhang Ruitong , Ren Na , Chen Duo , Liu Jiali , Liu Hong
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摘要: The invention discloses a polylactic acid-zinc oxide micro-nano multi-stage structure composite microsphere material and application thereof. provided by the is prepared dissolving acid in dichloromethane to obtain solution, adopting microfluidic technologyto drip solution into polyvinyl alcohol aqueous microspheres; dipping microspheres zinc acetate solution; taking outthe after surfaces of are stained with acetate; carrying out oxygen filling treatment using an plasma cleaning machine so as enable ofthe be combined oxide; putting microspheres, which have oxide, mixed liquid nitrate hexamethylenetetramine, stirring constant temperature water bath at 80-100 DEG C; reaction completely finished, washing drying. obtained stable uniform size, diameters 50-400mu m; lengths titanium nanorods 10-50nm.When human adipose-derived mesenchymal stem cells inoculated onto proliferation thestem can promoted, dryness maintained.
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