Premium
Improved Properties of Carbon Nanotube‐Fluorhydroxyapatite Biocomposite: Mechanical, Chemical Stability, and Antibacterial Activity
Author(s) -
Bai YuLong,
Bai Yu,
Ma Wen,
Jia RuiLin,
Zheng XueBin
Publication year - 2016
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201600330
Subject(s) - biocomposite , materials science , carbon nanotube , composite material , antibacterial activity , chemical stability , nanotube , nanotechnology , chemical engineering , composite number , bacteria , engineering , biology , genetics
A novel carbon nanotubes‐based fluoridated hydroxyapatite (CNTs/FHA) composite is prepared by an in situ chemical synthesis method and spark plasma sintering technology. The 1 wt% CNTs/FHA composite exhibits ≈82 and ≈86% improvement in fracture toughness and hardness, respectively. The chemical stability of the CNTs/FHA composite is evaluated by determining the Ca 2+ ion release. The result indicates that the substitution of F − ions into the HA structure has a positive effect on the dissolution resistance of HA. The in vitro bioactivity assessment shows that the osteoblast proliferation and differentiation ability are improved. Further, it is observed that the composites can effectively inactivate oral bacteria. Therefore, the CNTs/FHA composite is expected to be a promising material for dental implants.