4ZHANG X C . Biodegradable polymer ( orthopedic application) [A]. Polymeric Materials Encyclopedia [C]. New York: CRC Press lnc, 1996:593-599.
5SAWADA H. The status of the biodegradable plastics industry in Japan [ J ]. ASC Symposium Series,2001, ( 7 ) :56.
6CORRIGAN H. Characterization of drug release from diltiazem loaded polylactide microspheres prepare using sodium caseinate and whey protein as emulsifying agents[ J]. Journal of microencap- sulation ,2001,18 ( 3 ) :335 - 345
7OHSHIMA Y , NISHINO K . Clinical Application of Chitin Non woven Fabric as Wound Dressing [J]. Eur J Plast Surg, 1987, 10:66-71.
8OHSHIMA Y ,NISHINO K . Clinical Application of Chitin Nonwoven Fabric and New Chitin Sponge Sheetas Wound Dressing [J]. Eur J Plast Surg 1991,14:207 -212.
9KRAMER K J, MUTHUKRISHNAN S. Insect Chitinases: Molecular Biology and Potential Use as Biepesticides [J]. Insect Biochem Molecular Biology, 1997,27:87-90.
10LEWISD H. Controllable of Bioactive Agentive rom Lactide/Glycolide Polymers, in Biodegradable Polymers as Drug Delivery Systems [M]. New York : Marce IDekker Inc, 1990.
