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• W4387190950 abstract "Developing environmentally friendly, broad-spectrum, and long-lasting antibacterial materials remains challenging. Our ternary BiOI@Bi2S3/MXene composites, which exhibit both photothermal therapy (PTT) and photodynamic therapy (PDT) antibacterial properties, were synthesized through in-situ vulcanization of hollow flower-shaped BiOI on the surface of two-dimensional Ti3C2 MXene. The unique hollow flower-shaped BiOI structure with a high exposure of the (001) crystal plane amplifies light reflection and scattering, offering more active sites to improve light utilization. Under 808 nm irradiation, these composites achieved a photothermal conversion efficiency of 57.8%, boosting the PTT antibacterial effect. The heterojunction between Bi2S3 and BiOI creates a built-in electric field at the interface, promoting hole and electron transfer. Significantly, the close-contact heterogeneous interface enhances charge transfer and suppresses electron-hole recombination, thereby boosting PDT bacteriostatic performance. EPR experiments confirmed that ∙O2− and •OH radicals play major roles in photocatalytic bacteriostatic reactions. The combined antibacterial action of PTT and PDT led to efficiencies of 99.7% and 99.8% against P. aeruginosa and S. aureus, respectively, under 808 nm laser irradiation. This innovative strategy and thoughtful design open new avenues for heterojunction materials in PTT and PDT sterilization. : In this work, we prepared three-dimensional heterogeneous BiOI@Bi2S3/MXene nanocomposites through in-situ vulcanization of hollow flower-shaped BiOI with a high exposure of the (001) crystal plane onto the surface of two-dimensional MXene material. This preparation aims to enhance antibacterial efficiency. The resulting ternary material forms a close-contact heterogeneous interface, which improves charge transfer channels, reduces electron-hole pair recombination, and amplifies photodynamic bacteriostatic performance. These nanocomposites exhibit photothermal conversion efficiency of 57.8%, enhancing their photothermal bactericidal effects. They demonstrated antibacterial efficiencies of 99.7% against P. aeruginosa and 99.8% against S. aureus. Heterojunction materials with photothermal and photodynamic synergistic bactericidal effect are a potential environmental protection marine antifouling agent." @default.
• W4387190950 created "2023-09-30" @default.
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• W4387190950 date "2023-09-01" @default.
• W4387190950 modified "2023-10-18" @default.
• W4387190950 title "Interfacial Regulation of BiOI@Bi2S3/MXene Heterostructures for Enhanced Photothermal and Photodynamic Therapy in Antibacterial Applications" @default.
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• W4387190950 doi "https://doi.org/10.1016/j.actbio.2023.09.036" @default.
• W4387190950 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37778485" @default.
• W4387190950 hasPublicationYear "2023" @default.
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