PMID- 15803282 OWN - NLM STAT- MEDLINE DCOM- 20060118 LR - 20181113 IS - 0957-4530 (Print) IS - 0957-4530 (Linking) VI - 16 IP - 4 DP - 2005 Apr TI - Preparation and characterization of bioactive collagen/wollastonite composite scaffolds. PG - 361-5 AB - A novel biodegradable collagen/wollastonite composite was prepared as three-dimensional scaffolds by freeze-drying method. Scanning electron microscope (SEM) micrographs of scaffolds showed a continuous structure of interconnected pores, and pore size was about 100 microm. The tensile strength of the scaffolds was improved by incorporation of wollastonite and the in vitro bioactivity of the scaffolds was evaluated by examining the hydroxyapatite (HA) deposition on their surface in simulated body fluid (SBF). After soaking in SBF for 7 days, collagen reconstituted to fibers and HA nodules formed on collagen fibers. The result suggests that the incorporation of wollastonite could improve the mechanical strength and the in vitro bioactivity of the composite. The scaffolds could be a potential biomaterial for bone tissue engineering. FAU - Li, Xiaoke AU - Li X AD - Biomaterials and Tissue Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, People's Republic of China. FAU - Chang, Jiang AU - Chang J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Mater Sci Mater Med JT - Journal of materials science. Materials in medicine JID - 9013087 RN - 0 (Biocompatible Materials) RN - 0 (Calcium Compounds) RN - 0 (Silicates) RN - 0 (Solutions) RN - 9007-34-5 (Collagen) RN - S4255P4G5M (calcium silicate) SB - IM MH - Biocompatible Materials/*chemistry/metabolism MH - Bone and Bones/physiology MH - Calcium Compounds/*chemistry/metabolism MH - Collagen/*chemistry/metabolism MH - Freeze Drying MH - Microscopy, Electron, Scanning MH - Silicates/*chemistry/metabolism MH - Solutions MH - Tensile Strength MH - *Tissue Engineering EDAT- 2005/04/02 09:00 MHDA- 2006/01/19 09:00 CRDT- 2005/04/02 09:00 PHST- 2004/01/29 00:00 [received] PHST- 2004/10/19 00:00 [accepted] PHST- 2005/04/02 09:00 [pubmed] PHST- 2006/01/19 09:00 [medline] PHST- 2005/04/02 09:00 [entrez] AID - 10.1007/s10856-005-0636-7 [doi] PST - ppublish SO - J Mater Sci Mater Med. 2005 Apr;16(4):361-5. doi: 10.1007/s10856-005-0636-7.