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- W2387816308 abstract "1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride(EDC.HCl) and sodium tripolyphosphate(STPP) as the covalent and ionic bi-crosslinking agents were introduced to prepare gelatin-chitosan(gel-CS) composite porous scaffolds.The structure and morphology of the scaffolds were characterized by Fourier transform infrared spectrometer(FT-IR) and scanning electron microscope(SEM),and also the porosity,mean pore size,swelling properties and degradation were studied.In addition,the cross-linking mechanism was analyzed.The results show that covalent and ionic cross-linkage have taken place between the two phases of gel and CS in the composite porous scaffolds;these scaffolds have interconnected pores and high porosity,and the mean pore size is in the range of 136.1-182.9μm;the swelling properties of the scaffolds prepared by covalent and ionic bi-crosslinking are better than that of single covalent cross-linking,indicating that the cross-linking degree of covalent and ionic bi-crosslinking is higher than that of single covalent cross-linking.The degradation experiments show that,if STPP is constant,the degradation properties of scaffolds become better with EDC increasing;if EDC is constant,0.5% STPP can produce the scaffold with the best degradation property." @default.
- W2387816308 created "2016-06-24" @default.
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- W2387816308 date "2012-01-01" @default.
- W2387816308 modified "2023-09-23" @default.
- W2387816308 title "Preparation of gelatin-chitosan composite dermis scaffold with bi-crosslinking system and study on the properties" @default.
- W2387816308 hasPublicationYear "2012" @default.
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