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Fabrication and Characterization of Willemite Scaffolds Using Corn Stalk as a Novel Bio Template for Bone Tissue Engineering Applications
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作者 zahra yahay Seyed Mehdi Mirhadi Fariborz Tavangarian 《Journal of Bionic Engineering》 SCIE EI CSCD 2023年第1期16-29,共14页
In this paper,we used Corn Stalk(CS)as a renewable and economical bio template to fabricate willemite scaffolds with the potential application in skull bone repair.CS was used as a sacrificial template to synthesize t... In this paper,we used Corn Stalk(CS)as a renewable and economical bio template to fabricate willemite scaffolds with the potential application in skull bone repair.CS was used as a sacrificial template to synthesize the scaffolds.Willemite scaffolds with the chemical formula of Zn2SiO4 and pore size in the range of 3 to 10µm could be successfully synthesized by soaking CS in the willemite solution for 24 h and sintering at 950°C for 5 h.The porosity of the samples was controlled by the soaking time(between 12 and 48 h)in the willemite solution from 5 to 35%,respectively.The properties of these scaffolds showed a good approximation with cranial bone tissue.In addition,cytotoxicity assays(MTT)were performed on Human Bone Marrow Stromal cells(HBMSc)and A172 human glioblastoma cell lines by direct and indirect culture methods to estimate their toxicity for bone and nerve cells,respectively.Alkaline Phosphatase(ALP)activity and DAPI/Phalloidin cell staining were also performed to investigate the efficiency of the scaffolds for bone tissue engineering applications.The results showed that the scaffolds had good biocompatibility with both HBMSC and A172 cells,noticeable improvement on ALP activity,and great apatite formation ability in Simulated Body Fluid(SBF).All the evidence ascertained that willemite scaffolds made by corn stalks could be a useful candidate for bone tissue engineering applications. 展开更多
关键词 Corn stalk Bio template Bioactive ceramics-Scaffolds Bone tissue engineering
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