2007 Fiscal Year Final Research Report Summary
Preparation of carbon nanotube/alginate nanocomposite gel for tissue engineering
| Project/Area Number |
17592057
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
補綴理工系歯学
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| Research Institution | Fukuoka Dental College |
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Principal Investigator |
KAWAGUTCHI Minoru Fukuoka Dental College, Faculty of Dentistry, Research Associate (10122780)
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| Co-Investigator(Kenkyū-buntansha) |
NAKASHIMA Naotoshi Kyuusyu University, Faculty of Engineering, Professor (80136530)
TAKEDA Shoji Osaka Dental University, Faculty of Dentistry, Associate Professor (20067185)
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| Project Period (FY) |
2005 – 2007
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| Keywords | tissue engineering / Scaffold / carbon nanotube / alginate / cytotoxicity / tissue reaction |
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| Research Abstract |
A novel scaffold material based on an alginate hydrogel which contained carbon nanotubes (CNTs) was prepared, and its mechanical property and biocompatibility evaluated. Soluble CNTs were prepared with acid treatment and dispersed in sodium alginate solution as a cross-linker. After which, the mechanical property (elastic deformation), saline sorption, histological reaction, and cell viability of the resultant nanocomposite gel (CNT-Alg gel) were evaluated. The CNT-Alg gel showed faster gelling and higher mechanical strength than the conventional alginate gel. Saline sorption amount of freeze-dried CNT-Alg gel was equal to that of the alginate gel. In terms of histological evaluation and cell viability assay,
CNT-Alg gel exhibited a mild inflammatory response and non-cytotoxicity. These results thus suggested that CNT-Alg gel could be useful as a scaffold material in tissue engineering with the sidewalls of CNTs acting as active sites for chemical functionalization.
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