mPEG-PDLLA与mPEG-DSPE 载奥沙利铂复合胶束的制备及性能
参考文献:mPEG-PDLLA & mPEG-DSPE 载奥沙利铂塑料胶束的制取及稳定性 编辑赵文豪; 龚婷; 熊迎新; 霍美蓉期刊论文下载链接://openurl.ebsco.com/EPDB%3Agcd%3A8%3A31831176/detailv2?sid=ebsco%3Aplink%3Ascholar&id=ebsco%3Agcd%3A180319522&crl=c&link_origin=scholar.google.com结语Objective: To address the challenges associated with the low encapsulation efficiency of water-soluble drugs, poor stability and negligible endocytosis in micelles. Method: mPEG-DSPE and mPEG-PDLLA were used as carrier materials and oxaliplatin as model drug to prepare mPEG-DSPE&mPEG-PDLLA/OXA mixed NPs by flash nanoprecipitation. The performances of mixed NPs were compared with mPEG-PDLLA/OXA NPs and LPHNP/OXA NPs. Results: The optimal preparation process of mixed NPs obtained by single factor screening was as follows: the total flow rate was 4 mL/min with a flow rate ratio of 1∶3, the total material concentration was 3.75 mg/mLwith a material ratio was 1∶2, and the anti-solvent was acetonitrile. The three kinds of NPs had uniform particle sizes and all of their encapsulation efficiencies were more than 70%. The in vitro drug release test showed that the release rate of the mixed micelles which could be completely released was slower than that of the ordinary micelles. The results of uptake and apoptosis assay showed that the mixed micelles had the best uptake performance and cytotoxicity efficacy among the three NPs. Conclusions: The preparation of mixed micelles by flash nanoprecipitation which is a simple and convenient preparation method for commercialization, can achieve high encapsulation of water-soluble drugs. At the same time, the designed mixed micelles mPEG-DSPE&mPEG-PDLLA/OXA exhibits excellent abilities including favorable stability, superior uptake and robust cytotoxicity efficacy. This research provides a new idea for the application and transformation of micelles.