Antibacterial properties of traditional ceramic glazes containing copper oxide (산화구리를 함유하는 전통 세라믹 유약의 항균특성에 관한 연구)

Ungsoo Kim (김응수); Choi Jung Hoon (최정훈); Ro, Hyung Goo (노형구); Han Kyu Sung (한규성); Jin-Ho Kim (김진호); Kwangtaek Hwang (황광택)

doi:10.6111/JKCGCT.2019.29.6.372

Antibacterial properties of traditional ceramic glazes containing copper oxide

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2019, 29(6), pp.372-378
DOI : 10.6111/JKCGCT.2019.29.6.372
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering
Received : November 11, 2019
Accepted : December 12, 2019
Published : December 31, 2019

Ungsoo Kim ¹, Choi Jung Hoon ¹, Ro, Hyung Goo ¹, Han Kyu Sung ¹, Jin-Ho Kim ², Kwangtaek Hwang ¹

¹한국세라믹기술원
²한국세라믹기술원 이천분원

Accredited

ABSTRACT

Traditional ceramic glazes formulated with copper oxide (CuO) exhibited antibacterial properties on Staphylococcusaureus (Gram Positive) and Escherichia coli (Gram Negative). All the ceramic glazes containing CuO showed antibacterialbehavior when fired in reducing atmosphere. However, some of copper glazes presented antibacterial behavior and had noantibacterial properties at all when sintered in an oxidizing atmosphere. To elucidate the antibacterial mechanism, ceramicglazes were studied for phase and microstructure analysis, dissolution behavior and surface zeta potential. Metallic copperwas precipitated in the glaze layer when sintered in reducing atmosphere. Less than 0.05 ppm of Cu ion was dissolved fromglazes. Ca ion was most dissolved among all the samples. Glaze surface was highly negatively charged when CuO wasadded over 3 wt.% regardless of the sintering atmosphere. The antibacterial behavior of ceramic glazes seemed to be directlyrelated to the dissolution behavior of cations, but the antibacterial behavior of oxidized specimens was not explained by thedissolution behavior. Surface potential of ceramic glazes appeared to play an auxiliary role in antibacterial properties.

KEYWORDS

Copper glaze, Copper oxide (II), Sintering, Crystalline phase, Ion dissolution, Surface zeta potential, Antibacterial property

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Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Antibacterial properties of traditional ceramic glazes containing copper oxide

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* References for papers published after 2023 are currently being built.

Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Antibacterial properties of traditional ceramic glazes containing copper oxide

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