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http://dx.doi.org/10.4191/kcers.2018.55.2.03

Structure and Antibacterial Property of ZnO-B2O3-P2O5 Glasses  

Bae, Jun-Hyeon (Department of Materials Science and Engineering, Pusan National University)
Cha, Jae-Min (The Institute of Materials Technology, Pusan National University)
Kim, Dae-Sung (L&A R&D Center, LG Electronics)
Kim, Young-Seok (L&A R&D Center, LG Electronics)
Ryu, Bong-Ki (Department of Materials Science and Engineering, Pusan National University)
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Abstract
The glass structure and antibacterial properties of $(65-x)ZnO-xB_2O_3-35P_2O_5$ glasses were investigated. Zinc borophosphate glasses were prepared using a conventional melt-quenching technique at $1000^{\circ}C$. Glass transition temperature and CTE were studied and the structure of zinc borophosphate glasses was evaluated by FTIR. The $Zn^{2+}$ state increase with increasing ZnO content was investigated by XPS and a single sharp Zn $2P_{3/2}$ peak was confirmed, showing that Zn $2P_{3/2}$ exists as $Zn^{2+}$. In order to to evaluate the antimicrobial activity, Escherichia coli (E. coli) was used following the Japanese Industrial Standard JIS Z 2801; the E. coli death rate was found to increase with increasing $Zn^{2+}$ content of glasses.
Keywords
Zinc borophosphate glass; Antibacterial property;
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