Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23361
Title: Chitosan microcapsules loaded with either miconazole nitrate or clotrimazole, prepared via emulsion technique
Authors: Yuen, CWM
Yip, J 
Liu, L
Cheuk, K 
Kan, CW 
Cheung, HC
Cheng, SY
Keywords: Chitosan
Clotrimazole
Control-release
Miconazole
Microcapsules
Issue Date: 2012
Publisher: Elsevier Sci Ltd
Source: Carbohydrate polymers, 2012, v. 89, no. 3, p. 795-801 How to cite?
Journal: Carbohydrate Polymers 
Abstract: In this paper, a simple and versatile coacervation technique has been developed by using an ultrasound-assisted oil/water emulsion method for the preparation of antifungal agent-loaded microcapsules. Two types of chitosan microcapsules are successfully prepared. The mean particle size of the chitosan/miconazole nitrate microcapsules is 2.6 μm and that of the chitosan/clotrimazole microcapsules is 4.1 μm. The encapsulation efficiency of the chitosan/miconazole nitrate microcapsules (77.58-96.81%) is relatively higher than that of the chitosan/clotrimazole microcapsules (56.66-93.82%). The in vitro drug release performance of the microcapsules shows that the chitosan/miconazole nitrate microcapsules release about 49.5% of the drug while chitosan/clotrimazole microcapsules release more than 66.1% of the drug after 12 h under a pressure of 5 kg at pH 5.5, which is similar to the pH of human skin. The prepared drug-loaded microcapsules could be applied onto bandages or socks, and will continuously release antifungal drugs in a controlled manner under pressure.
URI: http://hdl.handle.net/10397/23361
DOI: 10.1016/j.carbpol.2012.04.013
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