PMID- 29679808 OWN - NLM STAT- MEDLINE DCOM- 20180925 LR - 20180925 IS - 1873-4367 (Electronic) IS - 0927-7765 (Linking) VI - 167 DP - 2018 Jul 1 TI - beta-tricalcium phosphate composite ceramics with high compressive strength, enhanced osteogenesis and inhibited osteoclastic activities. PG - 318-327 LID - S0927-7765(18)30238-8 [pii] LID - 10.1016/j.colsurfb.2018.04.028 [doi] AB - beta-tricalcium phosphate (beta-TCP) is well known as a resorbable bone repair material due to its inherent excellent biocompatibility and osteoconductivity. However, beta-TCP is encountered with osteostimulation-deficiency and poor mechanical strength because of poor sinterability. Herein, we prepared novel beta-TCP composite ceramics (TCP/SPGs) by introducing strontium-containing phosphate-based glass (SPG; 45P(2)O(5)-32SrO-23Na(2)O) as sintering additive. The SPG helped to achieve efficient liquid-phase sintering of beta-TCP at 1100  degrees C. The compressive strength of TCP/SPGs with 15 wt.% SPG (TCP/SPG15) was 2.65 times as high as that of plain beta-TCP ceramic. The SPG reacted with beta-TCP, and the Sr(2+) and Na(2+) from SPG replaced Ca(2+) in the lattice structure of beta-TCP, enabling the sustained release of strontium from TCP/SPGs. In vitro cytological test indicated that TCP/SPGs with certain amount of SPG were highly biocompatible, and noticeably promoted osteogenesis, and inhibited osteoclastic activities. Our results suggested that the TCP/SPG15 might be potential high-strength bone grafts used for bone defect repair, especially in the osteoporotic condition. CI - Copyright (c) 2018 Elsevier B.V. All rights reserved. FAU - Tian, Ye AU - Tian Y AD - School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China. FAU - Lu, Teliang AU - Lu T AD - School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, People's Republic of China. FAU - He, Fupo AU - He F AD - School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China. Electronic address: fphe@gdut.edu.cn. FAU - Xu, Yubin AU - Xu Y AD - School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, People's Republic of China. FAU - Shi, Haishan AU - Shi H AD - College of Chemistry and Materials, Jinan University, Guangzhou, 510632, People's Republic of China. FAU - Shi, Xuetao AU - Shi X AD - School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, People's Republic of China. FAU - Zuo, Fei AU - Zuo F AD - School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China. FAU - Wu, Shanghua AU - Wu S AD - School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China. FAU - Ye, Jiandong AU - Ye J AD - School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, People's Republic of China. Electronic address: jdye@scut.edu.cn. LA - eng PT - Journal Article DEP - 20180413 PL - Netherlands TA - Colloids Surf B Biointerfaces JT - Colloids and surfaces. B, Biointerfaces JID - 9315133 RN - 0 (Calcium Phosphates) RN - 0 (beta-tricalcium phosphate) SB - IM MH - Animals MH - Calcium Phosphates/chemistry/*pharmacology MH - Cell Proliferation/drug effects MH - Cell Survival/drug effects MH - Cells, Cultured MH - Ceramics/chemistry/*pharmacology MH - Compressive Strength MH - Mice MH - Osteoclasts/*drug effects/metabolism MH - Osteogenesis/*drug effects MH - RAW 264.7 Cells MH - Structure-Activity Relationship OTO - NOTNLM OT - Biological behavior OT - Bone graft OT - Calcium phosphate OT - Compressive strength OT - Strontium EDAT- 2018/04/22 06:00 MHDA- 2018/09/27 06:00 CRDT- 2018/04/22 06:00 PHST- 2018/01/09 00:00 [received] PHST- 2018/03/20 00:00 [revised] PHST- 2018/04/12 00:00 [accepted] PHST- 2018/04/22 06:00 [pubmed] PHST- 2018/09/27 06:00 [medline] PHST- 2018/04/22 06:00 [entrez] AID - S0927-7765(18)30238-8 [pii] AID - 10.1016/j.colsurfb.2018.04.028 [doi] PST - ppublish SO - Colloids Surf B Biointerfaces. 2018 Jul 1;167:318-327. doi: 10.1016/j.colsurfb.2018.04.028. Epub 2018 Apr 13.