Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.14365/1341
Title: | Ag-intercalation of Tm3+/Er3+ Co-doped layered perovskites and their exfoliated 2D nanosheets with an enhanced antibiofilm and antibacterial activity | Authors: | Gunay, Bensu Doger, Hilal Karagonlar, Zeynep Firtina Saglam, Ozge |
Keywords: | Rare-earth doped materials Layered perovskites Single oxide nanosheets Two-dimensional materials Antibiofilm Antibacterial In vitro cytotoxicity Ruddlesden-Popper Phases Oxide Flocculation K2la2ti3o10 |
Publisher: | Elsevier | Abstract: | There is a significant demand for antibiofilm and antimicrobial materials in the medical device industry. It is well established that Ag-based compounds have a high antimicrobial efficiency. Without being in a lattice, silver's antimicrobial action is mainly mediated by the release of Ag+ ions from the compound. These ions at high levels are toxic to most bacterial species. However, rapidly released Ag+ ions tend to aggregate and lose their anti-bacterial effect over time. Thus, utilizing a new approach for using silver as an antimicrobial agent based on imparting the antimicrobial action through contact, rather than releasing Ag+ ions could be beneficial. Here we report that Ag+ ions intercalation of Tm/Er co-doped layered perovskites and their 2D nanosheets exhibit antibacterial and antibiofilm activities against the human opportunistic pathogens Escherichia coli and Bacillus subtilis. Specifically, flocculation of nanosheets with Ag+ ions had efficient antibacterial and antibiofilm activity at 100 mu g/mL. In addition, the flocculated product demonstrated low in vitro cytotoxicity against the Huh7 hepatocellular carcinoma cell line and HEK 293 embryonic kidney cell line. Our results indicate that Ag-intercalated layered perovskites and the flocculation of the nanosheets hold great promise to be used for anti-microbial and antibiofilm purposes in biomedical engineering applications. | URI: | https://doi.org/10.1016/j.mtcomm.2022.104972 https://hdl.handle.net/20.500.14365/1341 |
ISSN: | 2352-4928 |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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