MAGNOLOL ENTRAPPED ULTRA-FINE FIBROUS MATS ELECTROSPUN FROM POLY(ETHYLENE GLYCOL)-b-POLY(L-LACTIDE) AND IN VITRO RELEASE
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MAGNOLOL ENTRAPPED ULTRA-FINE FIBROUS MATS ELECTROSPUN FROM POLY(ETHYLENE GLYCOL)-b-POLY(L-LACTIDE) AND IN VITRO RELEASE
Chinese Journal of Polymer ScienceVol. 29, Issue 2, Pages: 173-179(2011)
Affiliations:
a.School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
b.School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
c.School of Life Science and Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, China
d.State Key Laboratory of Polymer Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
Author bio:
**Ying-jie Deng (邓英杰), E-mail: dengyingjie45@yahoo.com.cn
Ultra-fine fibrous mats with magnolol entrapped have been prepared by electrospinning biodegradable copolymer poly(ethylene glycol) blocked poly(L-lactide). Drug entrapment was perfect which was confirmed by scanning electron microscopy and differential scanning calorimetry. According to
in vitro
drug release investigation by high performance liquid chromatography
it was found that fibers with 10%
20% and 30% drug entrapped respect to polymer (mass ratio) presented dramatically different drug release behavior and degradation behavior under the effect of proteinase K. The reason may be that fibers with 10% drug entrapped was more easily affected by enzyme while
to some degree
magnolol in fibers with 20% and 30% entrapped prevented polymer from being degraded by enzyme.
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