期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 34, 期 4, 页码 249-256出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2004.06.001
关键词
electrospinning; non-woven nanofibrous structure; PHBV; quaternary ammonium salt; conductivity; biodegradability
Electrospinning of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) in chloroform was investigated to develop non-woven biodegradable nanofibrous structures for tissue engineering. Ultrafine PHBV fibers were obtained by electrospinning of 20 wt.% PHBV solution in chloroform and the resulting fiber diameters were in the range of 1.0-4.0 mum. When small amounts of benzyl trialkylammonium chlorides were added to the PHBV solution, the average diameter was decreased to 1.0 mum and the fibers were amounted in a straight shape. Conductivity of the PHBV solution was a major parameter affecting the morphology and diameter of the electrospun PHBV fibers. PHBV non-woven structures electrospun with salt exhibited a higher degradation rate than those prepared without salt probably due to the increase of surface area of PHBV fibers. (C) 2004 Elsevier B.V. All rights reserved.
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