A Theoretical Model for the Prediction of the Porosity of Warp Knitted Scaffolds for Vascular Applications
Porosity is one of the important structural parameters for vascular scaffolds. The ideal porosity should permit free transport of nutrients and wasted products across the scaffold. Many methods, such as gravimetric method, mercury intrusion method and SEM method have widely been used to predict the porosity. However, theoretical models used for predicting the porosity of a scaffold produced from textile structure are still lacked. Warp knitted structure is a promising structure for the fabrication of scaffolds. The aim of this work is to establish a novel theoretical model which can predict the porosity of such scaffold. The results calculated from the model for the scaffolds knitted on a small circular warp knitting machine with the biodegradable material PGLA were compared with these calculated from the gravity model results and the experimental results of the modified method of weight. The results have shown that the present model can effectively predict the porosity of a warp knitted scaffold.
porosity warp knitted structure PGLA-biodegradable scaffold geometry
XUE Daoshun HU Hong WANG Wenzu
College of Textiles, Donghua University, Shanghai 201620, P. R. China
国际会议
上海
英文
809-811
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）