九种神经支架材料的力学指标测试

Background Tissue engneering scaffolds must possess suitable mechanics. Objective We investigated the mechanical property of nine materials candidated as nerve scaffold,which could supply an mechanical basis for neuro-scaffold in selecting materials and designing improvement schedule. which can be used as neuro-scaffold from acknowledged fine-biocompatible materials and investigated their tensile strength .They are poly (DL-lactic-co－glycolic acid) (PLGA), sodium polymannuronate, gelatine, chitosan, collogen, acellular pigskin, acellular vascular, acellular-pigskin-PLGA ,acellular-vascular-PLGA .Method. nine materials mentioned above were investigated about their mechanical character .Result the average ultimate-straining of PLGA is the greatest, while that of gelatine is the least; the average ultimate-stress of complex of acellular porcine dermis and PLGA is the greatest ,while that of collage is the least.Conclusion This experimental result can supply a mechanical reference for nerve scaffold in selecting material and designing.