Pt-Ru bimetallic nanoclusters with peroxidase-like activity for antibacterial therapy.
basic_science · Level V
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- Record sourced from PubMed, PMID 38771804.
- Also identified by DOI 10.1371/journal.pone.0301358 and PMC identifier 11108137.
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Abstract
Drug-resistant bacteria arising from antibiotic abuse infections have always been a serious threat to human health. Killing bacteria with toxic reactive oxygen species (ROS) is an ideal antibacterial method for treating drug-resistant bacterial infections. Here, we prepared Pt-Ru bimetallic nanoclusters (Pt-Ru NCs) with higher peroxidase (POD)-like activity than Pt monometallic nanoclusters. Pt-Ru can easily catalyze the decomposition of H2O2 to produce ·OH, thereby catalyzing the transformation of 3,3',5,5'-tetramethylbiphenylamine (TMB) to blue oxidized TMB (oxTMB). We utilized the POD-like activity of the Pt-Ru NCs for antibacterial therapy. The results showed that at doses of 40 μg/mL and 16 μg/mL, the Pt-Ru NCs exhibited extraordinary antibacterial activity against E. coli and S. aureus, demonstrating the enormous potential of Pt-Ru NCs as antibacterial agents.
Medical subject headings
- Anti-Bacterial Agents
- Platinum
- Escherichia coli
- Staphylococcus aureus
- Ruthenium
- Metal Nanoparticles