Near-infrared light and pH-responsive hyaluronic acid-enveloped ZIF-8 nanoparticles for the treatment of pneumonia caused by methicillin-resistant Staphylococcus aureus
ARABIAN JOURNAL OF CHEMISTRY(2024)
摘要
There is a serious threat to public health posed by the rapid spread of methicillin-resistant Staphylococcus aureus (MRSA). Photodynamic sterilization is the most effective method of combating bacterial infection, especially multidrug-resistant bacterial infection. In this study, zeolitic imidazolate framework-8 (ZIF-8) nanoparticles, one of the most attractive metal-organic framework material, were used to encapsulate the indocyanine green (ICG, a potent PS); after that, hyaluronic acid (HA) coating was applied to the nanoparticle to create a host cell-tracking nanoplatform (ICG@ZIF-8/HA). Upon near-infrared light irradiation, ICG@ZIF-8/HA exhibit excellent efficacy in producing reactive oxygen species (ROS) and killing multidrug-resistant bacteria in vitro. After the tail vein injection, ICG@ZIF-8/HA can precisely deliver to lung infection sites, and display an effective PDT-based elimination of multidrug-resistant bacteria in mouse lung infection models. These results suggest that the ICG@ZIF-8/ HA nanoplatform may exhibit potent curative effects on infectious diseases.
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关键词
Hyaluronic acid,Zeolitic imidazolate framework-8,Nanoplatform,Multidrug-resistant bacterial,Photodynamic sterilization
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