Abstract
A composite consisting of titanium dioxide (Ti02) particle, the surface of which was modified with amino groups, and a silicone substrate through covalent bonding at their interface was developed, and antibacterial and cell adhesion activities of the composite were evaluated. The density of the amino groups on the Ti02 particle surface was controlled by the reaction time of the modification reaction, and optimized by evaluation of photoreactivity and cell adhesion property of the amino-group-modified TiO 2 particles. The optimum amino group-modified TiO 2/silicone composite sheet (amino group density, 3.0 molecules/nm 2) showed an effective antibacterial activity for E. coli bacteria under UV irradiation, whereas the original silicone sheet showed almost no antibacterial activity under the same UV irradiation conditions.
Original language | English |
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Number of pages | 1 |
Publication status | Published - Oct 19 2006 |
Externally published | Yes |
Event | 55th SPSJ Annual Meeting - Nagoya, Japan Duration: May 24 2006 → May 26 2006 |
Other
Other | 55th SPSJ Annual Meeting |
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Country/Territory | Japan |
City | Nagoya |
Period | 5/24/06 → 5/26/06 |
Keywords
- Composite
- Medical device
- Photoreactivity
- Tissue adhesion
- Titanium dioxide
ASJC Scopus subject areas
- Engineering(all)