The purpose of this paper is to prepare some colon-specific polymerdrugs, in order to provide an effective method for the clinical application of 5-ASA.
本文目的是制备具有结肠靶向功能的高分子药物，以期为临床应用提供一种有效的给药途径。
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The effect of the size, surface area and porosity of particles, the property and content of drugs, as well as the properties of polymer on the drug release behavior of microcapsules are elucidated.
Degradable high polymer material can be used for controlled drug delivery systems to embed bioactive agents and drugs for the purpose of controlled release and target delivery.