Adsorption effect of Zn+2 and Co+2 on the antibacterial properties of SiC-porcelain ceramics

被引：4

作者：

Bhattacharjee, Arjak ^{[1
,6
]}

Gupta, Anshul ^{[1
]}

Anand, Murugan Prem ^{[2
]}

Sengupta, Pradyut ^{[3
]}

Pandey, Aditi ^{[4
]}

Bhattacharya, Tapas Kumar ^{[5
]}

机构：

[1] Indian Inst Technol Kanpur, Dept Mat Sci & Engn, Kanpur, Uttar Pradesh, India

[2] Indian Inst Technol Kanpur, Dept Biol Sci & Bio Engn, Kanpur, Uttar Pradesh, India

[3] CSIR Inst Minerals & Mat Technol, Bhubaneswar, India

[4] Natl Taiwan Univ, Dept Chem Engn, Taipei, Taiwan

[5] Govt Coll Engn & Ceram Technol, Kolkata, India

[6] Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA

来源：

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2020年 / 17卷 / 01期

关键词：

antibacterial efficacy; Cobalt and Zinc adsorption; SiC addition; Sic-Porcelain; ZINC-DOPED HYDROXYAPATITE; MECHANICAL-PROPERTIES;

D O I：

10.1111/ijac.13303

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This investigation reports the adsorption effect of Cobalt and Zinc ions on the antibacterial properties of Silicon Carbide (SiC) added fired Porcelain based ceramics against Escherichia coli and Staphylococcus aureus. Incorporation of SiC in porcelain composition shows decrease in bulk density and increase in apparent porosity gradually upto 15 weight percent addition. The bulk density and apparent porosity of 15 wt% SiC added porcelain are 2.01 g/cm(3) and 24.03%, respectively. Phase and microstructural charecterization reveals that fine grained interlocked mullite network with little unconverted quartz and carborandum are uniformly distributed in the microstructure. Co+2 and Zn+2 adsorption on exposed surface is calculated to be similar to 0.42 mg/cm(2) and Inductively coupled mass plasma spectroscopy (ICP-MS) shows that 1641.41 ppm of Co+2 and 1936.37 ppm of Zn+2 are leached in water from adsorbed surface. This is the first report where, transition metal specific antibacterial efficacy of SiC added porcelain-based ceramics are investigated. This report reveals that both Co+2 and Zn+2 adsorption results in antibacterial efficacy against E coli and S aureus and Co+2 adsorption is superior to (zone of inhibition is similar to 1.3 cm more depending on bacteria and sample specifications) Zn+2 adsorption.

引用

页码：327 / 332

页数：6

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