Sputter-Deposited Cr–Ag Films for Environmental Antimicrobial Applications
Source abstract
Abstract
Chromium–silver films with ≤ 39.2 at.% Ag were deposited by magnetron sputtering for antibacterial applications. X-ray diffraction and scanning electron microscopy analyses indicate that the films consist of Cr and Ag, and silver segregation is not obvious at the surface. The films are hard (628–968 HV0.001) and hydrophobic with low surface energy (12.8–26.8 mJ/m2). The drying time of water droplets is dependent on ambient conditions, material wettability and droplet size. The test against Escherichia coli indicates antibacterial ratios of 100% for the Cr–Ag films (action time 3 h). However, bacteria died within 15 min due to quick drying of the bacterial suspension in open ambient conditions. The Cr–Ag films would have potential antimicrobial applications in public environmental facilities.
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Research context
OpenAlex topics: Nanoparticles: synthesis and applications · Antimicrobial agents and applications · Gold and Silver Nanoparticles Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
Asahi Group Co. Ltd., Kwun Tong, Hong Kong, China
Guang Dong Cenfly Medical Technology Co. Ltd., Jiangmen 529200, China
Funding
Natural Science Fund of Shaanxi Province
References (33)
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