Recent Advances of Bismuth Halide Based Nanomaterials for Photocatalytic Antibacterial and Photodynamic Therapy

Abstract

Studies of layered structure nanomaterials is greatly explored to provide enormous potential for the development of photocatalytic bioapplication. As one of the layered nanomaterials, bismuth halide nanomaterials have attracted much attention due to their outstanding properties, such as excellent optoelectronic performance, higher biosafety, high abundance, etc. Here, a brief review of recent research progress of bismuth halide based nanomaterials (BiONs) in bioapplication is provided, mainly including photocatalytic antibacterial and photodynamic therapy. Surface engineering strategies, including doping, heterojunction, morphology control, vacancy engineering, facet engineering, and others, are employed to develop a high photoactivity and better biological compatibility of BiONs. In this review, the major challenges of BiONs during the photoreaction process are discussed and promising strategies are proposed for superior photocatalytic performance in biological area. It is hoped that this review may offer new insights into the development of highly active nanomaterials in bioapplication.

WO3 Nanowire-Attached Reduced Graphene Oxide-Based 1D–2D Heterostructures for Near-Infrared Light-Driven Synergistic Photocatalytic and Photothermal Inactivation of Multidrug-Resistant Superbugs

“…hS values have been calculated using eq 10. 31,39−48 (10) where c is the heat capacity of the solvent, m is the mass, and τ s is the sample system time constant, 31,39−48 which can be defined as (11) where t is the time during the light-induced photothermal process in the presence of 785 nm NIR light and θ is the dimensionless driving force, which is defined in the following equation.…”

“…After discovery, antibiotics were the medical miracle in the health system to save several millions of lives in this world from infectious diseases. − Due to the inappropriate and excessive use of antibiotics, several pathogenic bacteria like Salmonella, Shigella, S. aureus, Staphylococcus pneumoniae, Mycobacterium tuberculosis, Escherichia coli, and others have developed defense strategies against antibiotics, and as a result, traditional antibiotics cannot be used for the effective treatment of superbug infections. − As per the World Health Organization (WHO), antibiotic-resistant bacterial infections are responsible for more than 1.3 million people death every year. − On the other hand, since bacteria are becoming antibiotic resistant against a new type of antibiotic faster than it established in the health care market, the biopharmaceutical industry is not developing a new class of antibiotics since the 1990s. − Driven by the need for society, in the current study, we report the design of a 2D reduced graphene oxide (r-GO) and 1D WO 3 nanowire-based photocatalytic heterostructure for combating multiantibiotic-resistant Salmonella DT104, carbapenem-resistant Enterobacteriaceae Escherichia coli (CRE E. coli), and methicillin-resistant Staphylococcus aureus (MRSA) superbugs.…”

Biological Preparation of Chitosan-Loaded Silver Nanoparticles: Study of Methylene Blue Adsorption as Well as Antibacterial Properties under Light

“…Singlet oxygen has certain cytotoxicity to the target due to its super oxidation . Antibacterial photodynamic therapy (aPDT) is a photodynamic therapy for drug resistant strains, which is used to kill or eliminate pathogens. − Because of their strong oxidation, they have a certain effect on the cell membrane of bacteria and even changes the physiological activity of bacteria by entering bacteria. − In the existing research, the key of aPDT is the content of oxygen-free radicals produced by photosensitizers. The insufficient generation of oxygen-free radicals is the main barrier to the wide application of aPDT.…”

Bismuth-based semiconductors applied in photocatalytic reduction processes: fundamentals, advances and future perspectives

“…1) are suitable and commonly applied in photocatalytic oxidation reactions with high activity. [13][14][15][16] Thus, there are few systematic summary reports on the application of BBS in photoreduction processes. Nevertheless, due to the rapid development of photocatalytic modification techniques, recent studies have demonstrated that the photoreduction activity of BBS can be further enhanced by various approaches, such as optimizing the synthesis process, 17 phase transformation, modulation of the built-in electric field associated with the crystal plane, 18 Bi enrichment, 19 solid solution, 20,21 and generation of surface oxygen vacancies.…”