期刊
POLYMER INTERNATIONAL
卷 72, 期 1, 页码 5-19出版社
WILEY
DOI: 10.1002/pi.6474
关键词
drug delivery system; stimuli; polymer; cleavable
The controlled delivery of pharmaceutical ingredients to disease sites is challenging, especially when crossing biological barriers. Responsive delivery systems have been developed to achieve controlled drug release based on internal or external stimuli such as pH changes, redox environment, light, and temperature. This review describes exciting developments of pH-, light-, and redox-cleavable polymers for smart delivery systems and discusses the different stimuli and polymers used for controlled drug release.
The controlled delivery of active pharmaceutical ingredients to the site of disease represents a major challenge in drug therapy. Particularly when drugs have to be transported across biological barriers, suitable drug delivery systems are of importance. In recent years responsive delivery systems have been developed which enable a controlled drug release depending on internal or external stimuli such as changes in pH, redox environment or light and temperature. In some studies delivery systems with reactivity against two different stimuli were established either to enhance the response by synergies of the stimuli or to broaden the window of possible trigger events. In the present review numerous exciting developments of pH-, light- and redox-cleavable polymers suitable for the preparation of smart delivery systems are described. The review discusses the different stimuli that can be used for a controlled drug release of polymer-based delivery systems. It puts a focus on the different polymers described for the preparation of stimuli-sensitive systems, their preparation techniques as well as their stimuli-responsive degradation. (c) 2022 The Authors. Polymer International published by John Wiley & Sons Ltd on behalf of Society of Industrial Chemistry.
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