Pt-Ru bimetallic nanoclusters with peroxidase-like activity for antibacterial therapy.
Chuang WeiYijun GaoPeifeng LiPublished in: PloS one (2024)
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.
Keyphrases
- drug resistant
- energy transfer
- multidrug resistant
- human health
- acinetobacter baumannii
- reactive oxygen species
- silver nanoparticles
- risk assessment
- hydrogen peroxide
- escherichia coli
- anti inflammatory
- climate change
- nitric oxide
- fluorescent probe
- cystic fibrosis
- quantum dots
- oxidative stress
- bone marrow
- cell therapy