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Chiang Mai Journal of Science, Faculty of Science, Chiang Mai University
 


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Cu2O(ClO4)2/TiO2 Dandelion-shaped Nanospheres with Photocatalytic Antibacterial Activity


Paper Type 
Contributed Paper
Title 
Cu2O(ClO4)2/TiO2 Dandelion-shaped Nanospheres with Photocatalytic Antibacterial Activity
Author 
Xiaolin Xu, Yacong Yang, Yingchun Miao, Kaiquan Liu, Yuqin Chen and Shaoyan Yue
Email 
miaoyingchun1979@126.com
Abstract:

     Cu/TiO2 dandelion-like 3D microstructures self-assembled from nanorods were prepared. These microstructures demonstrated good antibacterial activity (100%) against Acinetobacter baumannii and Escherichia coli. The structural, compositional, morphological, and optical properties of different Cu/TiO2 powders were characterized by XRD, SEM, TEM, XPS, BET, FTIR, TG, and DRS. The X-ray diffraction patterns of Cu/TiO2 powders were consistent with crystalline rutile/anatase TiO2 and Cu2O(ClO4)2. Furthermore, Acinetobacter baumannii DNA integrity was compromised by photocatalytic antibacterial activity. In the electrophoresis experiment, the catalysts could only inhibit the growth of Acinetobacter baumannii in the absence of light. The DNA fragments of Acinetobacter baumannii were damaged under the condition of light and catalyst. This could greatly reduce the likelihood of horizontal gene transfer, thus greatly reducing the spread of antibiotic resistance.

Start & End Page 
434 - 445
Received Date 
2021-08-18
Revised Date 
2021-10-07
Accepted Date 
2021-10-20
Full Text 
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Keyword 
Cu/TiO2, dandelion-shaped nanospheres, DNA, antibacterial activity, photocatalysis
Volume 
Vol.49 No.2 (March 2022)
DOI 
https://doi.org/10.12982/CMJS.2022.021
Citation 
Xu X., Yang Y., Miao Y., Liu K., Chen Y. and Yue S., Cu2O(ClO4)2/TiO2 Dandelion-shaped Nanospheres with Photocatalytic Antibacterial Activity, Chiang Mai Journal of Science, 2022; 49(2): 434-445. DOI 10.12982/CMJS.2022.021.
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