Abstract
The performance of silver/tin oxide (Ag/SnO2) nanocomposites as coating materials with high antibacterial capability is evaluated in this study. Scanning electron microscopy (SEM) and density functional theory (DFT) analyses were used to characterize the nanocomposite structures and confirm that Ag (1 1 1) and SnO2 (1 1 0) form nanorods of Ag/SnO2. The antibacterial properties of these materials were investigated by using an Alamar Blue Assay (ABA) absorbance method. The results indicated that toxicity to E. coli and S. aureus increased with respect to the proportion of Ag within the composite, with the highest antibacterial activity being observed at a 4:1 ratio of Ag:SnO2. Additionally, the antimicrobial properties of the composites were enhanced when particle sizes were reduced from the micro- to nanometer range. Our study demonstrates that nano-Ag/SnO2 composites are highly suitable for antibacterial coatings of glass-based materials.
| Original language | English |
|---|---|
| Pages (from-to) | 767-776 |
| Number of pages | 10 |
| Journal | Ain Shams Engineering Journal |
| Volume | 11 |
| Issue number | 3 |
| DOIs | |
| State | Published - Sep 2020 |
Funding
The authors would like to thank DLSHSI, College of Humanities and Sciences for allowing the authors to perform the antibacterial experiments in the microbiology and chemistry laboratory, as well as Gwen Castillon, Prane Ong, and Rey Coria from the DLSU Solid State Physics Laboratory for their assistance and guidance during the experimental works. Dr. Vipin Kumar was supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy , Advanced Manufacturing Office, under contract DE-AC05-00OR22725 with UT-Battelle, LLC. Eduardo B. Tibayan Jr obtained PhD from Department of Physics, De La Salle University, Manila and currently he serves as dean at the College of Humanities and Sciences, De La Salle Health Sciences Institute, Dasmariñas City, Cavite, Philippines. Muhammad Akhsin Muflikhun currently as a PhD student from the Department of Aeronautics and Astronautics, The University of Tokyo. He is a permanent lecturer from department of mechanical and industrial engineering, Gadjah Mada University, Indonesia. He obtained his master degree in the department of mechanical engineering, De La Salle University, Manila Vipin Kumar obtained PhD from department of aeronautics and astronautics engineering, The University of Tokyo, Japan. Currently his position is a researcher at Manufacturing Demonstration Facility (MDF), Oak Ridge National Laboratory (ORNL), Knoxville, TN, 37932, USA Christine Fisher works as researcher in the Chemical Sciences Division (CSD), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN, 37830, USA. She obtained PhD from City University of New York-College of Staten Island. Al Rey C. Villagracia serve as Research Unit Head,Advanced Nanomaterials Investigation by Molecular Simulations (ANIMoS) De La Salle University, Manila. He obtained his PhD in the Department of Physics, De La Salle University, Manila Gil Nonato C. Santos is a full professor from the Department of Physics, De La Salle University, Manila. Currently he serves as a Vice Chancellor at De La Salle University Laguna Campus. He also serves as a head of iNano research facility, De La Salle University, Manila. The authors would like to thank DLSHSI, College of Humanities and Sciences for allowing the authors to perform the antibacterial experiments in the microbiology and chemistry laboratory, as well as Gwen Castillon, Prane Ong, and Rey Coria from the DLSU Solid State Physics Laboratory for their assistance and guidance during the experimental works. Dr. Vipin Kumar was supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office, under contract DE-AC05-00OR22725 with UT-Battelle, LLC.
| Funders | Funder number |
|---|---|
| DLSHSI | |
| U.S. Department of Energy | |
| Advanced Manufacturing Office | DE-AC05-00OR22725 with UT-Battelle |
| Office of Energy Efficiency and Renewable Energy | |
| De La Salle University |
Keywords
- Ag/SnO
- Antibacterial agent
- Coatings
- DFT
- HVPG
- Vapor deposition