期刊
JOURNAL OF CONTROLLED RELEASE
卷 178, 期 -, 页码 25-45出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jconrel.2013.12.028
关键词
Microencapsulation; Oral drug delivery; Transdermal drug delivery; In vivo study; Skin delivery model
资金
- Innovation Technology Commission and Research Grants Council
- Hong Kong Polytechnic University
- AIRC
This review provides an overall discussion of microencapsulation systems for both oral and transdermal drug deliveries. Clinically, many drugs, especially proteins and peptides, are susceptible to the gastrointestinal tract and the first-pass metabolism after oral administration while some drugs exhibit low skin permeability through transdermal delivery route. Medicated microcapsules as oral and transdermal drug delivery vehicles are believed to offer an extended drug effect at a relatively low dose and provide a better patient compliance. The polymeric microcapsules can be produced by different microencapsulation methods and the drug microencapsulation technology provides the quality preservation for drug stabilization. The release of the entrapped drug is controlled and prolonged for specific usages. Some recent studies have focused on the evaluation of drug containing microcapsules on potential biological and therapeutic applications. For the oral delivery, in vivo animal models were used for evaluating possible treatment effects of drug containing microcapsules. For the transdermal drug delivery, skin delivery models were introduced to investigate the potential skin delivery of medicated microcapsules. Finally, the challenges and limitations of drug microencapsulation in real life are discussed and the commercially available drug formulations using microencapsulation technology for oral and transdermal applications are shown. (C) 2013 Elsevier B.V. All rights reserved.
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