کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2481376 1556240 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Random effects in drug dissolution
موضوعات مرتبط
علوم پزشکی و سلامت داروسازی، سم شناسی و علوم دارویی اکتشاف دارویی
پیش نمایش صفحه اول مقاله
Random effects in drug dissolution
چکیده انگلیسی

The deterministic models of dissolution are commonly used in pharmaceutical studies, however, experimental results point to stochastic nature of the dissolution processes. In this paper we present stochastic modifications of deterministic models using the concept of Wiener process. The models are given in form of stochastic differential equations and their properties are studied. Probability distributions of the dissolution data are derived for all the stochastic models. Variability of the dissolution data is discussed and sources of the random fluctuations are divided into two categories – the variability of the dissolution vessel environment and the measurement errors. Based on these considerations a function describing variability of the dissolution data at each time instant is proposed. Practical application of the stochastic approach based on experimental data is illustrated by finding maximum-likelihood estimation of model parameters and identification of noise sources and their levels in the system. Their influence on the estimates of the mean dissolution time is shown.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Pharmaceutical Sciences - Volume 41, Issues 3–4, 20 November 2010, Pages 430–439
نویسندگان
, ,