PMID- 18807266 OWN - NLM STAT- MEDLINE DCOM- 20090402 LR - 20181113 IS - 0957-4530 (Print) IS - 0957-4530 (Linking) VI - 20 IP - 1 DP - 2009 Jan TI - Bioactive borosilicate glass scaffolds: improvement on the strength of glass-based scaffolds for tissue engineering. PG - 365-72 LID - 10.1007/s10856-008-3582-3 [doi] AB - Three-dimensional macroporous scaffolds with the pore size of 200-500 mum were fabricated by replication method using bioactive borosilicate glass from Na(2)O-K(2)O-MgO-CaO-SiO(2)-P(2)O(5)-B(2)O(3) system. The effects of the strength of the strut in reticulated scaffold, as well as the geometrical parameter of the scaffold on the strength of reticulated scaffold were investigated. Scanning electron microscope (SEM) and X-ray diffraction (XRD) results show that the solidified glass struts in the reticulated scaffold could be obtained through a sufficient vicious flow of glass, during the fabrication. By increasing the solid content in slurries, from which the scaffold was made, the load-bearing units of the reticulated scaffold switch from struts to the walls between the pores, and the compressive strength dramatically climbs higher than the theoretical strength calculated by Gibson model. In particular, the compressive strength of the reticulated scaffold, as high as approximately 10 MPa with the porosity of approximately 70%, is close to the reported compressive values of human cancellous bone. This indicates the bioactive borosilicate glass-based scaffold is a promising candidate for bone tissue engineering. FAU - Liu, Xin AU - Liu X AD - Institute of Bioengineering and Information Technology Materials, Tongji University, Shanghai, 200092, People's Republic of China. FAU - Huang, Wenhai AU - Huang W FAU - Fu, Hailuo AU - Fu H FAU - Yao, Aihua AU - Yao A FAU - Wang, Deping AU - Wang D FAU - Pan, Haobo AU - Pan H FAU - Lu, William W AU - Lu WW LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080921 PL - United States TA - J Mater Sci Mater Med JT - Journal of materials science. Materials in medicine JID - 9013087 RN - 0 (Bioglass) RN - 0 (Bone Substitutes) RN - 0 (Silicates) SB - IM MH - Biomechanical Phenomena MH - Bone Substitutes/*chemistry MH - Ceramics/*chemistry MH - Compressive Strength MH - Humans MH - Materials Testing MH - Microscopy, Electron, Scanning MH - Models, Theoretical MH - Silicates/*chemistry MH - Tissue Engineering MH - Tissue Scaffolds/*chemistry MH - X-Ray Diffraction EDAT- 2008/09/23 09:00 MHDA- 2009/04/03 09:00 CRDT- 2008/09/23 09:00 PHST- 2008/05/23 00:00 [received] PHST- 2008/08/29 00:00 [accepted] PHST- 2008/09/23 09:00 [pubmed] PHST- 2009/04/03 09:00 [medline] PHST- 2008/09/23 09:00 [entrez] AID - 10.1007/s10856-008-3582-3 [doi] PST - ppublish SO - J Mater Sci Mater Med. 2009 Jan;20(1):365-72. doi: 10.1007/s10856-008-3582-3. Epub 2008 Sep 21.