Novel Microbial Palladium Nanoparticles with a High Photothermal Effect for Antibacterial Applications.
Yuan ChenZhiquan ChenDidi YangLishan ZhuZhenda LiangYijun PangLi ZhouPublished in: ACS omega (2022)
Novel biocompatible palladium nanoparticles (Pd-NPs) have been prepared by microorganisms via Bacillus megaterium Y-4. It was demonstrated that ultrasonication treatment of biologically reduced Pd-NPs impart a much higher absorption in NIR regions and a better photothermal conversion efficiency to the material. The as-prepared material showed excellent biocompatibility and antibacterial activity under NIR irradiation. In less than 10 min, the disinfection efficiency for a low dosage of Pd-NPs (20 mg/L) was 99.99% toward both Staphylococcus aureus and Escherichia coli . The exclusive and even dispersed microbial Pd-NPs display a high efficiency of photothermal conversion under the irradiation of NIR, which endows them with excellent antibacterial activity in a low dosage.
Keyphrases
- drug release
- photodynamic therapy
- drug delivery
- escherichia coli
- staphylococcus aureus
- high efficiency
- fluorescence imaging
- cancer therapy
- microbial community
- silver nanoparticles
- oxide nanoparticles
- fluorescent probe
- biofilm formation
- radiation induced
- pseudomonas aeruginosa
- radiation therapy
- methicillin resistant staphylococcus aureus
- walled carbon nanotubes
- candida albicans
- multidrug resistant
- klebsiella pneumoniae