Carbon Nanotube Coating on Titanium Substrate Modified with TiO2 Nanotubes
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2011年第5期
论文作者：白玉 PARK Ilsong BAE Taesung KIM Kyounga WATARI Fumio UO Motohiro LEE Minho
文章页码：867 - 871
摘 要：A combination of carbon nanotubes （CNTs） and titanium （Ti） modified with TiO2 nanotubes （TiO2 NTs） was fulfilled with the aim of improving bioactivity of Ti implant.First,well-ordered TiO2 NTs were prepared by the electrochemical anodization of Ti in an ethylene glycol electrolyte containing 1 wt% NH4F and 10 wt% H2O at 20 V for 50 min,followed by annealing.Then,the carboxylated CNTs were coated onto the TiO2 NTs using electrophoretic deposition （EPD） technique.The growth of hydroxyapatite （HA） on the samples was investigated by soaking them in simulated body fluid （SBF）.The result showed the CNTs-coated Ti with the modification of TiO2 NTs （CNTs-TiO2 NTs） was more efficient to induce HA formation than the CNTs-coated smooth Ti （CNTs-Ti）.The vitro cell response was evaluated using osteoblast cells （MC3T3-E1）.The good cell proliferation and strong cell adhesion could be obtained on the CNTs-TiO2 NTs.These results indicated that CNT coating on the Ti modified with TiO2 NTs could be potentially useful for the periodontal ligament combination on dental implants.
白玉1,2，PARK Ilsong1，BAE Taesung1，KIM Kyounga3，WATARI Fumio4，UO Motohiro5，LEE Minho1
1. Department of Dental Biomaterials,School of Dentistry and Institute of Oral Bioscience,Brain Korea 21 Project,Chonbuk National University2. School of Materials Science and Engineering,Inner Mongolia University of Technology3. Department of Conservative Dentistry,Institute of Oral Bioscience and BK 21 Project,School of Dentistry,Chonbuk National University4. Biomedical,Dental Materials and Engineering,Department of Oral Health Science,Graduate School of Dental Medicine,Hokkaido University5. Advanced Biomaterials Section,Graduate School of Medical and Dental Sciences,Tokyo Medical and Dental University
摘 要：A combination of carbon nanotubes （CNTs） and titanium （Ti） modified with TiO2 nanotubes （TiO2 NTs） was fulfilled with the aim of improving bioactivity of Ti implant.First,well-ordered TiO2 NTs were prepared by the electrochemical anodization of Ti in an ethylene glycol electrolyte containing 1 wt% NH4F and 10 wt% H2O at 20 V for 50 min,followed by annealing.Then,the carboxylated CNTs were coated onto the TiO2 NTs using electrophoretic deposition （EPD） technique.The growth of hydroxyapatite （HA） on the samples was investigated by soaking them in simulated body fluid （SBF）.The result showed the CNTs-coated Ti with the modification of TiO2 NTs （CNTs-TiO2 NTs） was more efficient to induce HA formation than the CNTs-coated smooth Ti （CNTs-Ti）.The vitro cell response was evaluated using osteoblast cells （MC3T3-E1）.The good cell proliferation and strong cell adhesion could be obtained on the CNTs-TiO2 NTs.These results indicated that CNT coating on the Ti modified with TiO2 NTs could be potentially useful for the periodontal ligament combination on dental implants.
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