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首页> 外文期刊>Journal of Microencapsulation: Microcapsules Liposomes Nanoparticles Microcells Microspheres >Reinvestigating nanoprecipitation via Box-Behnken design: a systematic approach
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Reinvestigating nanoprecipitation via Box-Behnken design: a systematic approach

机译:通过Box-Behnken设计重新研究纳米沉淀:系统方法

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This work demonstrates Box-Behnken design (BBD)'s capability in exploring scientific principles governing a process, different from its use in process optimisation. We have investigated nanoprecipitation (NP) of temozolomide with polycaprolactone. Five factors, surfactant, stirring speed (SS), dropping rate (DR), phase-volume ratio (PVR) and drug-polymer ratio (DPR) were varied over three levels. Corresponding particle size (238.9 +/- 42.24 nm), zeta potential (ZP, -5.92 +/- 3.15 mV), poly dispersity index (PDI, 0.176 +/- 0.06) and entrapment efficiency (EE, 65.74 +/- 9.83%) were put into different polynomial equations. Analysis of variance, lack of fit tests and regression analysis was applied on these equations to determine the one with best fit. This selected equation was subsequently adapted as the model to describe influence of factors on NP. 3D response surface plots corresponding to models and diagnostic plots relatable to normality of residuals were also constructed. In conclusion, application of BBD efficiently strategised experimental foray conducted to elucidate NP.
机译:这项工作证明了Box-Behnken设计(BBD)在探索管理过程的科学原理方面的能力,与在过程优化中的使用不同。我们研究了聚己内酯与替莫唑胺的纳米沉淀(NP)。表面活性剂,搅拌速度(SS),滴加速率(DR),相体积比(PVR)和药物聚合物比(DPR)这五个因素在三个级别上有所变化。相应的粒径(238.9 +/- 42.24 nm),ζ电位(ZP,-5.92 +/- 3.15 mV),多分散指数(PDI,0.176 +/- 0.06)和包封率(EE,65.74 +/- 9.83% )放入不同的多项式方程式中。对这些方程式进行方差分析,缺乏拟合检验和回归分析,以确定最适合的方程式。随后将该选择的方程式用作描述因素对NP影响的模型。还构建了与模型相对应的3D响应面图和与残差的正态相关的诊断图。总之,BBD的应用有效地阐明了阐明NP的实验尝试。

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