Chemical Property and Antibacterial Activity of Metronidazole-decorated Ti through Adhesive Dopamine

Dongjie Fu1, Yi Lu1, Shaohuai Gao2, Youjian Peng1, Haiying Duan3
1Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, China
2The State Key Laboratory Breding Base of Basic Science of Stomatology (Hubei-MOST), Wuhan, China
3Wuhan Centural Chinese Construction Third Engineering Bureau, Wuhan, China

Tóm tắt

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.

Tài liệu tham khảo

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