| Abstract: | In order to present a novel metronidazole-decorated Ti implanted with antibacterial activity through adhesive dopamine, and prepare metronidazole-decorated Ti, Ti substrates were pre-modified with dopamine(DA) coating, and metronidazole was subsequently immobilized onto the surface of DA-modified Ti substrates. The prepared MET-decorated Ti interfaces were prepared for surface characterization tests:contacting angle measurements, scanning electron microscope, ATR-FTIR spectroscopy and in vitro anti-biofilm formation assay. Statistical tests were performed using by SPSS16.0. Contacting angle measurement, scanning electron microscopy, and ATR-FTIR spectroscopy confirmed the successful presence of MET grafted on the Ti surface. In addition, the MET-decorated Ti induced good in vitro antibacterial activity toward Escherichia coli and Streptococcus mutans,Gram-negative and Gram-positive bacteria, respectively. The modified Ti substrate with enhanced antibacterial activity holds a great potential as implanting material for applications in dental and bone graft substitutes. |
