Abstract
Pathogenic bacteria that give rise to diseases every year remain a major health concern. In recent years, tellurium-based nanomaterials have been approved as new and efficient antibacterial agents. In this paper, we developed the approach to directly grow tellurium nanowires (Te NWs) onto commercial carbon fiber fabrics and demonstrated their antibacterial activity. Those Te NWs can serve as templates and reducing agents for gold nanoparticles (Au NPs) to deposit. Three different Te-Au NWs with varied concentration of Au NPs were synthesized and showed superior antibacterial activity and biocompability. These results indicate that the as-prepared carbon fiber fabrics with Te and Te-Au NWs can become antimicrobial clothing products in the near future.
Highlights
Semiconductor nanorods (NRs) and nanowires (NWs) are interesting nanomaterials (NMs) and have been applied in sensor and energy applications [1,2,3,4]
Before the growth of tellurium nanowires (Te NWs), the carbon fiber fabrics were cleaned with isopropanol and water
The prepared carbon fiber fabrics with Te and Te-Au NWs were dried in air at room temperature prior to characterization and antibacterial test
Summary
Semiconductor nanorods (NRs) and nanowires (NWs) are interesting nanomaterials (NMs) and have been applied in sensor and energy applications [1,2,3,4]. Tellurite (TeO3 2 ) ions released from the four Te NMs account for the antibacterial activity. Au-Te and Au-Ag2 Te NMs were prepared and showed superior antibacterial activity in the presence of light irradiation [13,14]. The capabilities of the controlled release of active ions (TeO3 2 and Ag+ ) and the generation of ROS make these NMs inhibit the growth of E. coli and Staphylococcus aureus (S. aureus) either in the dark or in the presence of light irradiation. In the presence of Te NWs, the fabrics resulted in the inhibition of bacterial growth by slowly releasing active tellurite ions. Compared to Te NWs, Te-Au NWs provided stronger antibacterial activity due to the generation of ROS
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