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http://dx.doi.org/10.7317/pk.2012.36.2.202

Preparation and Characteristics of Poly(ε-caprolactone) Microcapsules Containing Pseudomonas by W/O/W Emulsion  

Kim, Ki-Seok (Department of Chemistry, Inha University)
Lee, Seung-Yeop (Camstech)
Lee, Gun-Woong (Hyung Jae Bio, Business incubator Center, Chonbuk National University)
Kim, Hyung-Gon (Camstech)
Park, Soo-Jin (Department of Chemistry, Inha University)
Publication Information
Polymer(Korea) / v.36, no.2, 2012 , pp. 202-207 More about this Journal
Abstract
Biodegradable poly(${\varepsilon}$-caprolactone)(PCL) microcapsules containing pseudomonas were prepared by W/O/W emulsion system. The characteristics and release behaviors of the microcapsules were investigated as a function of manufacturing conditions. The morphology and particle distribution of the microcapsules were observed by a scanning electron microscope and a particle size analyzer. The release behaviors of the pseudomonas were determined using a cell culture method. It was found that smooth and spherical microcapsules were formed by W/O/W emulsion system and particle size was in the range of 10 to 60 ${\mu}m$. The release behaviors of the pseudomonas were influenced by the manufacturing conditions. It was indicated that the increase of the surfactant content and stirring rate led to an increased release rate, resulting from the high specific surface area of the smaller particle size, and the increase of the PCL content provided the sustained release behaviors by the delay effect of diffusion in the release medium.
Keywords
microcapsules; poly(${\varepsilon}$-caprolactone); pseudomonas; release behavior;
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