LENG Ye , DING Zuquan , GONG Lulu.
  • School of Life Science and Technology, Tongji University, Shanghai, 200092, P.R.China;
Tissue engineering; Small intestinal submucosa; Elastic modulus
Export PDF Favorites Scan Get Citation

Abstract Full text Figures/Tables References Cited by

Objective to determine the modulus of elasticity (E) of small intestinal submucosa (SIS), a new biological graft material. Methods The longitudinal tensile testing was performed on 21 specimens of canine jejunum with the electronic material test machine. Results Stress (σ)strain (ε) data were obtained. It was found that the stress (σ)strain (ε) data fitted the expressionσ＝Kεα very well, the mean correlation coefficients R2 was0.991 6.Then the expression of the modulus of elasticity (E) of SIS was E=K1/ασ1-1/α. The mean values of α and K were 3.966 9 and 374.55，so E=4.3992σ0.75. Conclusion The modulus of elasticity was found to increase with increasing stress. The variations law is similar to that of the vessels. Furthermore when σ is 001333 MPa(100 mmHg),E is about 0.16 MPa, which is similar to that of the vessels.

Citation： LENG Ye,DING Zuquan,GONG Lulu.. ELASTIC MODULUS OF SMALL INTESTINAL SUBMUCOSA. Chinese Journal of Reparative and Reconstructive Surgery, 2006, 20(3): 292-294. doi: Copy