Atomic Ti-Nx sites with switchable coordination number for enhanced visible-light photocatalytic water disinfection

Article Chemistry, Physical

Rapid photocatalytic inactivation of E. coli by polyethyleneimine grafted O-doped g-C3N4: Synergetic effects of the boosted reactive oxygen species production and adhesion performance

Quanfeng Xing et al.

Summary: The study successfully prepared the PEI/OCN photocatalyst with powerful bactericidal capability, which can efficiently eliminate bacterial contamination.

APPLIED SURFACE SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Heterojunction architecture of Nb2O5/g-C3N4 for enhancing photocatalytic activity to degrade organic pollutants and deactivate bacteria in water

Xudong Yang et al.

Summary: Water pollution has become a serious problem, and photocatalysis shows promise in removing pollutants. In this study, Nb2O5/g-C3N4 (NO/CN) composite materials were prepared, which exhibited improved photocatalytic properties and achieved 95% inactivation of Escherichia coli and effective removal of organic pollutants.

CHINESE CHEMICAL LETTERS (2022)

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Article Chemistry, Physical

Metal free benzothiadiazole-diketopyrrolopyrrole-based conjugated polymer/g-C3N4 photocatalyst for enhanced sterilization and degradation in visible to near-infrared region

Yahui Du et al.

Summary: A new narrow band-gap polymer PFBDT-DPP (P3) with wide absorption range of 500-860 nm was synthesized and heterostructured with g-C3N4 for photocatalytic applications, exhibiting excellent performance in sterilization and degradation of organic pollutants. The enhanced carrier separation efficiency and broadened light absorption range of P3/g-C3N4 contribute to its superior photocatalytic performance compared to g-C3N4.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Chemistry, Physical

Construction of single-atom Ag embedded O, K co-doped g-C3N4 with enhanced photocatalytic efficiency for tetracycline degradation and Escherichia coli disinfection under visible light

Hui Lu et al.

Summary: Photocatalytic technique using O, K co-doped g-C3N4 photocatalyst embedded with single-atom Ag has shown enhanced degradation and disinfection efficiency in aquatic environment. The optimal Ag/OKCN-6 could eliminate 80.4% of tetracycline within 60 minutes and completely inactivate Escherichia coli by efficient disruption of cell membranes. The synergistic effect of O, K co-doping and single-atom Ag embedding contributed to extended light response, improved charge separation and transfer, prolonged carrier lifetime, and enhanced hydrophilicity, resulting in excellent photocatalytic performance.

JOURNAL OF MOLECULAR LIQUIDS (2022)

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Article Chemistry, Multidisciplinary

Ultrathin Porous Carbon Nitride Bundles with an Adjustable Energy Band Structure toward Simultaneous Solar Photocatalytic Water Splitting and Selective Phenylcarbinol Oxidation

Baogang Wu et al.

Summary: ACN bundles with adjustable band gaps and hollow microtubes were synthesized via pyrolysis, showing excellent water-splitting and phenylcarbinol oxidation abilities under solar irradiation. The proton source of released hydrogen was confirmed to be water through D-2 isotope labeling, separation, and detection.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Review Chemistry, Multidisciplinary

Metal-Organic-Framework-Based Materials for Antimicrobial Applications

Rui Li et al.

Summary: Metal-organic frameworks (MOFs) have emerged as promising materials for a variety of antimicrobial applications, due to their different functions including controlled decomposition of components with bactericidal activity, strong interactions with bacterial membranes, and formation of photogenerated reactive oxygen species (ROS). These materials are classified as component-releasing, photocatalytic, chelation antimicrobial agents, and carriers or synergistic antimicrobial agents of other functional materials.

ACS NANO (2021)

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Article Chemistry, Multidisciplinary

Rational Design of High-Concentration Ti3+ in Porous Carbon-Doped TiO2 Nanosheets for Efficient Photocatalytic Ammonia Synthesis

Qing Han et al.

Summary: The study presents porous carbon-doped anatase TiOx (C-TiOx) nanosheets with high-concentration active sites of Ti3+ obtained through a reproducible bottom-up approach. It demonstrates that the high-concentration Ti3+ sites play a vital role in enhancing N-2 photoreduction activity. Combined with the morphology of porous nanosheets and the loading of a Ru/RuO2 cocatalyst, the optimized C-TiOx shows a high NH3 production rate and remarkable quantum efficiency under visible-light irradiation, outperforming current TiO2-based photocatalysts.

ADVANCED MATERIALS (2021)

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Article Chemistry, Physical

Study of BiOI/BiOIO3 composite photocatalyst for improved sterilization performance of fluorocarbon resin coating (PEVE)

Ning Su et al.

Summary: Improving the antimicrobial performance of surface coatings on ships in the complex marine environment is a pressing issue. Photocatalytic materials like BiOIO3 are used to enhance the sterilization performance of fluorocarbon resin coatings, showing significantly improved results in experimental tests.

CHEMICAL PHYSICS LETTERS (2021)

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Article Multidisciplinary Sciences

A synthetic antibiotic class overcoming bacterial multidrug resistance

Matthew J. Mitcheltree et al.

Summary: The lack of new medicines effective against antibiotic-resistant bacteria is a growing concern in global public health. The traditional semisynthesis method for finding new antibiotics is inadequate in combating rapidly evolving resistance threats, while fully synthetic routes designed properly can address this issue. Through structure-guided design and component-based synthesis, a new antibiotic named iboxamycin has been developed with exceptional potency and spectrum of activity against various bacteria.

NATURE (2021)

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Article Materials Science, Multidisciplinary

Bone biomaterials for overcoming antimicrobial resistance: Advances in non-antibiotic antimicrobial approaches for regeneration of infected osseous tissue

Joanna M. Sadowska et al.

Summary: The challenge in orthopaedics is to eliminate bacterial infection and promote bone growth simultaneously, while antibiotic resistance poses a major threat to global public health. Developing multifunctional nonantibiotic antimicrobial biomaterials is crucial, with current research focusing on various technologies to create them.

MATERIALS TODAY (2021)

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Review Chemistry, Multidisciplinary

Systems-Level Chemical Biology to Accelerate Antibiotic Drug Discovery

Maya A. Farha et al.

Summary: The lack of success in new antibiotic drug discovery is partly due to a lack of understanding of the bacterial cell system as a whole. System-level approaches have the potential to be powerful tools for innovation and advancement in antibacterial research.

ACCOUNTS OF CHEMICAL RESEARCH (2021)

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Article Engineering, Environmental

Visible-light-driven photocatalytic inactivation of S. aureus in aqueous environment by hydrophilic zinc oxide (ZnO) nanoparticles based on the interfacial electron transfer in S. aureus/ZnO composites

Mengru Du et al.

Summary: The antibacterial effects of AH-ZnO NPs depend on their concentration and treatment time. In addition, the bulk ORP value and released Zn2+ concentration in AH-ZnO NPs solutions increase with the concentration. SEM and intracellular protein leakage results indicate that AH-ZnO NPs can adhere to the surface of S. aureus without causing cell membrane disruption. The decrease in photoluminescence intensity after adding S. aureus confirms electron transfer from S. aureus to AH-ZnO NPs, suggesting disruption of the respiratory electron transfer chain of S. aureus.

JOURNAL OF HAZARDOUS MATERIALS (2021)

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Article Energy & Fuels

Boron-doped nitrogen-deficient carbon nitride-based Z-scheme heterostructures for photocatalytic overall water splitting

Daming Zhao et al.

Summary: Researchers have successfully used doped carbon nitride-based Z-scheme heterostructures to split water and produce hydrogen, but coupling suitable H-2 and O-2 evolution components remains challenging.

NATURE ENERGY (2021)

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Article Chemistry, Multidisciplinary

Sunlight-Sensitive Plasmonic Nanostructured Composites as Photocatalytic Coating with Antibacterial Properties

Laura Marin-Caba et al.

Summary: Research using nanostructured materials for bacterial photoinactivation shows that AuNRs/TiO2 photocatalytic composites exhibit photodegradation of rhodamine B, ROS production, photocatalytic inactivation of protein function in bacterial biofilms, and strong antimicrobial activity under simulated sunlight irradiation.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Physical

Can photocatalytic technology facilitate conjugative transfer of ARGs in bacteria at the interface of natural sphalerite under different light irradiation?

Hongliang Yin et al.

Summary: The study showed that under light exposure, conjugative transfer frequency significantly increased, indicating that antibiotic-resistant bacteria promoted the dissemination of antibiotic-resistance genes at the photocatalysis interface. This new perspective highlighted the important role of natural minerals and natural light in the dissemination of antibiotic-resistance genes.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

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Article Engineering, Environmental

Visible-light driven rapid bacterial inactivation on red phosphorus/titanium oxide nanofiber heterostructures

Jiaxiu Liu et al.

Summary: Red phosphorus/titanium oxide nanofibers were developed for efficient water disinfection, rapidly killing E. coli and S. aureus under white LED irradiation. The enhanced antibacterial activity was mainly attributed to improved light absorption and charge separation at the TiO2@RP interface.

JOURNAL OF HAZARDOUS MATERIALS (2021)

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Editorial Material Multidisciplinary Sciences

MICROBIOLOGY Giving antibiotics an assist

Thien-Fah Mah

SCIENCE (2021)

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Article Chemistry, Multidisciplinary

Full Solar-Spectrum-Driven Antibacterial Therapy over Hierarchical Sn3O4/PDINH with Enhanced Photocatalytic Activity

Ruiqi Yang et al.

Summary: This study fabricated an organic-metal oxide hybrid semiconductor heterostructure for photocatalytic generation of reactive oxygen species to kill drug-resistant bacteria, with the ability to capture bacteria and improved photocatalytic activity. It showed a promoting effect on treating Staphylococcus aureus-infected wounds in mice, providing new ideas for smart full-spectrum inorganic-organic hybrid adhesive heterostructure photocatalysts for antibacterial photocatalytic therapy.

SMALL (2021)

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Review Chemistry, Multidisciplinary

Progress on photocatalytic semiconductor hybrids for bacterial inactivation

Jiayu Zeng et al.

Summary: The article discusses the potential and mechanisms of photocatalytic bacterial inactivation, emphasizing on semiconductor active sites, photoexcited electron transfer, and modification strategies. It also highlights the promising potential of 2D materials for antibacterial applications due to their wide optical response and superior antibacterial activity.

MATERIALS HORIZONS (2021)

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Article Chemistry, Multidisciplinary