Au 3+ -Functionalized UiO-67 Metal-Organic Framework Nanoparticles: O 2 •- and •OH Generating Nanozymes and Their Antibacterial Functions.
Meng-Meng PanYu OuyangYong-Li SongLu-Qin SiMing JiangXu YuLi XuItamar WillnerPublished in: Small (Weinheim an der Bergstrasse, Germany) (2022)
The synthesis and characterization of Au 3+ -modified UiO-67 metal-organic framework nanoparticles, Au 3+ -NMOFs, are described. The Au 3+ -NMOFs reveal dual oxidase-like and peroxidase-like activities and act as an active catalyst for the catalyzed generation of O 2 •- under aerobic conditions or •OH in the presence of H 2 O 2 . The two reactive oxygen species (ROS) agents O 2 •- and •OH are cooperatively formed by Au 3+ -NMOFs under aerobic conditions, and in the presence of H 2 O 2. The Au 3+ -NMOFs are applied as an effective catalyst for the generation ROS agents for antibacterial and wound healing applications. Effective antibacterial cell death and inhibition of cell proliferation of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) bacterial colonies are demonstrated in the presence of the Au 3+ -NMOFs. In addition, in vivo experiments demonstrate effective wound healing of mice wounds infected by S. aureus, treated by the Au 3+ -NMOFs.
Keyphrases
- metal organic framework
- reduced graphene oxide
- sensitive detection
- wound healing
- cell death
- escherichia coli
- reactive oxygen species
- visible light
- staphylococcus aureus
- cell proliferation
- gold nanoparticles
- quantum dots
- dna damage
- room temperature
- gene expression
- silver nanoparticles
- mass spectrometry
- nitric oxide
- biofilm formation
- anti inflammatory
- newly diagnosed
- essential oil
- cystic fibrosis