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[求助] 请问Ritger-peppas方程拟合的n>1是什么意思

一般Ritger-Peppas模型Mt/M∞=ktn  Mt/M∞为药物在某一时间的累积释放分数(%),t为释放时间,k为常数,n为释放参数
n 值为Ritger-Peppas方程中表示释放机制的特征参数,与制剂的骨架的形状有关。此外,也可以反映出药物释放动力学方面的情况
当n=0.5~1时,药物即以fick扩散+溶蚀释放为主,而当n = 1 时,药物释放完全呈现零级动力学。
但是现在拟合的n>1.属于什么类型的扩散机制?求助!
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