The antibacterial effect of silver-carrying B₂O₃−SiO₂−Na₂O glass material

Abstract

The antibacterial effect of carrying silver B₂O₃−SiO₂−Na₂O glass material was studied by means of antibacterial ring, nephelometery, MIC value, thin film attachment and microcalorimetry, respectively. The experimental results of five kinds of antibacterial test methods are almost identical and can verify that carrying silver B₂O₃−SiO₂−Na₂O glass material exerts an excellent antibacterial performance. Antibacterial ring and nephelometery are simple, quick, but the precision is restrictive. MIC value, thin film attachment method and microcalorimetry can quantitatively compare the antibacterial effects of the antibacterial glass material. Compared with the traditional microbe test methods, the microcalorimetry can analyze the inhibiting effect of the cell’s growth and metabolism on the antibacterial glass material by monitoring the thermal effect continuously and automatically.

Keywords

antibacterial glass material / silver / antibacterial effect

References

[1] Li B Z. Progress of Antimicrobial Plastics and its Application. New Chemical Materials, 2000, 28(6): 8-12.

[2] Tang G, Wang Z J. Development and Application of Inorganic Antibacterial Materials. Materials Science and Engineering, 2002, 20(2): 298-301.

[3] Wu X H. Inorganic Antibacterial Materials and its Development. Journal of Yunnan University (Nature Sciences Edition), 2002, 24: 1-10.

[4] Feng Z Q, Yan J H, Qu F, . Inorganic Antibacterial Agents and Antibacterial Materials and its Test Methods. Chinese Journal of Preventive Medicine, 1998, 32(5): 315-316.

[5] Yuan P, He H P. Advances of Ag-type Inorganic Antibacterial Agents Research. Industrial Minerals and Processing, 2002, 10: 5-10.

[6] Gaoshan Z Y. The Test for Antibiotic Property. J. Antibact. Antifung Agents, 1997, 25(3): 163-169.

[7] Zeng D D, Sun C B, Ding H. The Evaluation of Antibiotic Property for Inorganic Antibacterial Materials and Its Antifactious Materials. New Chemical Materials, 2001, 29(2): 17-20.

[8] GB15979-1995, Hygienic Standard for Disposable Sanitary Products

[9] GB15981-1995, Evaluating Methods and Standard for the Efficacy of Disinfection and Sterilization

[10] GB4789.2-84, Microbiological Examination of Food Hygiene

[11] Li X, Liu Y, Qu S S, . The Action of the Setenomorphotine Compounds on Escherichia coli Growth by Microcalotimetry. J. of Thermal Analysis and Calorimrtry, 2002, 67(3): 589-591.