4.6 Article

Amplifying bactericidal activity: Surfactant-mediated AgBr thin film coating over two-dimensional vertically aligned ZnO nanorods for dark-light dual mode disinfection

Related references

Note: Only part of the references are listed.
Article Materials Science, Multidisciplinary

Fabrication of visible-active ZnO-gC3N4 nanocomposites for photodegradation and cytotoxicity of methyl orange and antibacterial activity towards drug resistance pathogens

Amruta Bhosale et al.

Summary: In this study, ZnO nanoparticles (NPs) were modified with g-C3N4 to overcome the shortcomings of wide band gap and high recombination rate. The prepared ZnO-gC(3)N(4) nanocomposites demonstrated enhanced light absorption in the visible region, improved photocatalytic efficiency, and good photo-stability. The nanocomposites also showed bactericidal activity against gram-negative bacteria and lower cytotoxicity compared to the original dye.

OPTICAL MATERIALS (2023)

Review Pharmacology & Pharmacy

Metal-Organic Frameworks and Their Biodegradable Composites for Controlled Delivery of Antimicrobial Drugs

Tayah C. Livesey et al.

Summary: Antimicrobial resistance is a growing crisis with increasing number of untreatable bacterial infections. Efforts are being made to develop novel vaccines, antimicrobial agents, and diagnostic practices. There is also ongoing research on materials for improved drug delivery to combat AMR.

PHARMACEUTICS (2023)

Article Nanoscience & Nanotechnology

Preparation of carnation-like Ag-ZnO composites for enhanced photocatalysis under visible light

Anh-Tuan Vu et al.

Summary: Carnation-like ZnO nanoparticles were successfully synthesized by precipitation method and used for dye degradation. Ag-ZnO composites with uniform distribution of Ag nanoparticles on ZnO petals were also obtained, which exhibited improved catalytic ability. The impact of Ag content on the structure and performance of the composites was investigated, and the 5Ag-ZnO sample showed the highest surface area, pore volume, and the lowest energy band gap (Eg).

NANOTECHNOLOGY (2023)

Review Chemistry, Physical

Heterojunction Engineering for Electrocatalytic Applications

Santanu Pal et al.

Summary: Production of green hydrogen through water electrolysis is desirable for clean energy demand, but faces challenges in terms of energy barriers and economic sustainability. Heterojunctions, which involve material combinations with desired band structures, have emerged as a smart approach to enhance electrocatalytic activities. This review extensively discusses various heterojunctions, interface modifications, thermodynamics, and factors that boost electrocatalytic activities. Heterojunction-based electrocatalysts are not only effective in oxygen and hydrogen evolution reactions, but also in various electrochemical reactions involving decomposition of small molecules at low energy. Hence, heterojunction-based electrocatalysts are expected to be the primary choice for researchers in the future.

ACS APPLIED ENERGY MATERIALS (2023)

Article Chemistry, Analytical

Fabrication of Vertically Aligned ZnO Nanorods Modified with Dense Silver Nanoparticles as Effective SERS Substrates

Na Li et al.

Summary: A facile approach is proposed to prepare Ag nanoparticles modified ZnO nanorod arrays (Ag/ZnO NR arrays) as a sensitive, uniform, and repeatable SERS substrate for the rapid detection of organic dye molecules and biomolecules with concentrations higher than the corresponding limits of detection (LODs). The fabricated Ag/ZnO NR arrays exhibit high selectivity to multiple components and can be recycled due to their superior self-cleaning ability.

CHEMOSENSORS (2023)

Article Pharmacology & Pharmacy

Fabrication and Facile Surface Derivatization of Poly(ε-caprolactone)-Based Wound Dressing Materials Imparting Anti-Infective, Excessive Biofluid Drainage, and Easy-to-Peel Characteristics

Hemanjali Mude et al.

Summary: The study develops a novel approach to create antimicrobial wound dressing materials using poly(epsilon-caprolactone) (PCL) with surface derivatization of ionic silver and quaternary ammonium moieties. The materials exhibit enhanced antibacterial properties and multifunctional attributes such as excessive biofluid drainage and optimal gas permeation. The in vivo efficacy study demonstrates the potential of ionic silver derivatized electrospun fibers as the most promising candidate for antimicrobial wound dressings.

ADVANCED THERAPEUTICS (2023)

Article Biochemistry & Molecular Biology

Probing the Effects of Antimicrobial-Lysozyme Derivatization on Enzymatic Degradation of Poly(& epsilon;-caprolactone) Film and Fiber

Pranay Amruth Maroju et al.

Summary: In this study, a facile solution-based method was used to surface derivatize poly(& epsilon;-caprolactone) films and electrospun fibers with lysozyme, aiming to impart antimicrobial properties and examine the impact on enzymatic degradation. The derivatized films and fibers showed high antibacterial efficacy against Escherichia coli and Staphylococcus aureus. The degradation rate experienced a slight decrease upon lysozyme derivatization, but this reduction was effectively countered by the inclusion of Tween-20.

MACROMOLECULAR BIOSCIENCE (2023)

Review Chemistry, Multidisciplinary

Photocatalytic Antimicrobials: Principles, Design Strategies, and Applications

Bei Ran et al.

Summary: Phototherapy strategies, particularly photocatalytic antimicrobial therapy (PCAT), have emerged as effective methods for inactivating pathogenic microorganisms. This review summarizes the latest progress in the field of PCAT, including the development of various photocatalytic antimicrobials, their antimicrobial mechanisms, design strategies, and practical applications in various fields.

CHEMICAL REVIEWS (2023)

Article Chemistry, Physical

Gold nanoclusters-decorated graphitic carbon nitride nanocomposites with antibacterial and anti-biofilm activities

Yufeng Luo et al.

Summary: This study successfully loaded gold nanoclusters onto graphitic carbon nitride nanoparticles, which exhibited thiol depletion ability in Escherichia coli, effectively killing bacteria and inhibiting biofilm formation.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2023)

Review Pharmacology & Pharmacy

Recent Progress and Trends in the Development of Electrospun and 3D Printed Polymeric-Based Materials to Overcome Antimicrobial Resistance (AMR)

Pablo C. Caracciolo et al.

Summary: Antimicrobial resistance (AMR) is a critical global public health issue that requires prompt attention. Antibiotics contribute to AMR in bacteria and microorganisms, resulting in infectious diseases that cannot be effectively treated. Researchers have sought to avoid the use of antibiotics by exploring materials science, engineering, and pharmaceutics. This article focuses on the design and manufacture of polymeric materials capable of incorporating antimicrobial agents. The emerging techniques of electrospinning and 3D printing have attracted significant interest in this field.

PHARMACEUTICS (2023)

Article Engineering, Biomedical

The antibacterial property of zinc oxide/graphene oxide modified porous polyetheretherketone against S. sanguinis, F. nucleatum and P. gingivalis

Shihui Yang et al.

Summary: About 30% of implant failures are caused by peri-implantitis, which is initiated by subgingival plaque including S. sanguinis, F. nucleatum, P. gingivalis, and others. Polyetheretherketone (PEEK) is commonly used in dental applications but has poor antibacterial properties. In this study, ZnO/GO was loaded onto sulfonated PEEK to enhance its antibacterial activity. The modified ZnO/GO-SPEEK exhibited optimal physical and chemical properties, and demonstrated good biocompatibility. It significantly inhibited P. gingivalis and exerted antibacterial activity against S. sanguinis in the early stage, effectively preventing biofilm formation. These results suggest that the modification of PEEK with ZnO/GO holds promise for preventing peri-implantitis.

BIOMEDICAL MATERIALS (2022)

Article Engineering, Biomedical

Preparation and antibacterial properties of an AgBr@SiO2/GelMA composite hydrogel

Bo Li et al.

Summary: In this study, composite hydrogel dressings consisting of nanosized silver bromide-doped mesoporous silica microspheres were prepared. These dressings exhibited excellent mechanical properties and antimicrobial activity, making them potential candidates for wound dressings.

BIOMEDICAL MATERIALS (2022)

Article Chemistry, Multidisciplinary

Super-hydrophobic and photocatalytic antimicrobial activity of iodine-doped ZnO nanoarray films

Yingxin Xiao et al.

Summary: In this study, iodine-doped ZnO nanoarray films were prepared by the in situ growth method and their structure and morphology were tested. The results showed that the doped iodine extended the light absorption range of the nano film and imparted super hydrophobic properties. The iodine-doped ZnO nano films exhibited higher antimicrobial activity against E. coli under visible light illumination compared to ZnO film, with ZnO/I-3 showing the best antimicrobial activity.

NEW JOURNAL OF CHEMISTRY (2022)

Article Engineering, Environmental

A novel S-scheme heterojunction of CsPbBr3 nanocrystals/AgBr nanorods for artificial photosynthesis

Zhijie Zhang et al.

Summary: In this study, a unique S-scheme heterojunction of CsPbBr3/AgBr was developed, achieving efficient photocatalytic CO2 reduction. This work provides insights into the development of new efficient photocatalysts based on lead halide perovskite for solar fuel applications.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Physical

Visible-light-triggered persulfate activation by CuCo2S4 modified ZnO photocatalyst for degradation of tetracycline hydrochloride

Meysam Habibi et al.

Summary: A series of binary nanocomposites based on ZnO and CuCo2S4 were synthesized and their photocatalytic performance for organic pollutant removal under visible light was investigated. The ZnO/CuCo2S4 (20%) sample showed outstanding visible-light-triggered performance. The study emphasized the importance of heterojunction construction and band energy concordance in the binary system, and highlighted the significant role of persulfate ions in enhancing oxidative removal.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2022)

Article Medicine, General & Internal

Global mortality associated with 33 bacterial pathogens in 2019: a systematic analysis for the Global Burden of Disease Study 2019

Kevin S. Ikuta et al.

Summary: This study provides comprehensive estimates of deaths associated with 33 bacterial pathogens worldwide, highlighting the significant global health burden of bacterial infections. Staphylococcus aureus, Escherichia coli, Streptococcus pneumoniae, Klebsiella pneumoniae, and Pseudomonas aeruginosa are the top five deadliest pathogens, and the deadliest infectious syndromes and pathogens vary by location and age.

LANCET (2022)

Article Chemistry, Physical

Facile synthesis of W1-yFeyO3@NiO@RGO ternary nanohybrid with enhanced sunlight mediated photocatalytic and bactericidal activities for water purification

H. A. Alburaih et al.

Summary: A WFN@RGO nanohybrid with superior bactericidal and photo-catalytic properties was successfully fabricated via a two-step wet chemical process. Compared to WFN nanoparticles, the WFN@RGO nanohybrid showed higher catalytic activity and bactericidal activity under solar-light irradiation, possibly due to prolonged separation of photo-induced electron-hole pairs, lower bandgap energy, and the synergistic effect of W0.98Fe0.02O3, NiO, and RGO.

FLATCHEM (2022)

Article Engineering, Environmental

Fabricating effective heterojunction in metal-organic framework-derived self-cleanable and dark/visible-light dual mode antimicrobial CuO/AgX (X = Cl, Br, or I) nanocomposites

Mariya Midhu Francis et al.

Summary: This work addresses the requirements for antimicrobial materials working under dark and visible-light conditions by designing a synthetic strategy to create CuO/AgX nanocomposites. The nanocomposites exhibit high antimicrobial characteristics and visible-light photocatalytic activity, making them promising for environmental applications.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Biochemistry & Molecular Biology

Questioning ZnO, Ag, and Ag/ZnO nanoparticles as antimicrobial agents for textiles: Do they guarantee total protection against bacteria and SARS-CoV-2?

Daniel J. da Silva et al.

Summary: Developing antimicrobial cotton fibers is crucial in preventing new global pandemics or the transmission of dangerous pathogens. Research has shown that cotton fabrics with Ag, ZnO, and Ag/ZnO nanoparticles exhibit bactericidal activity against bacteria, but their antiviral effectiveness against SARS-CoV-2 is limited.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY (2022)

Article Environmental Sciences

An overview of nanomaterial-based novel disinfection technologies for harmful microorganisms: Mechanism, synthesis, devices and application

Zhong-Ting Hu et al.

Summary: This article provides a state-of-the-art review on the development of nanomaterial-based disinfection/sterilization techniques, focusing on the types of nanomaterials, disinfection techniques, bactericidal devices, sterilization products, and application scenarios. The widely used silver nanoparticles are considered as the most effective bacterial agents. Various methodologies to address challenges in traditional sterilization are discussed, and feasible strategies for improving disinfection/sterilization systems are proposed.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Article Materials Science, Coatings & Films

Silver-based vitreous enamel coatings: Assessment of their antimicrobial activity towards Escherichia coli and Staphylococcus aureus before and after surface degradation

Francesca Russo et al.

Summary: Porcelain enamel coatings are inorganic coatings that can be successfully applied to various metallic substrates for high chemical resistance and corrosion protection. The addition of silver-based additives can develop durable antibacterial enamel coatings, which have the potential to inhibit the spread of pathogens in public spaces.

SURFACE & COATINGS TECHNOLOGY (2022)

Article Engineering, Environmental

In situ synthesis of S-scheme AgBr/BiOBr for efficient degradation of sulfonamide antibiotics: Synergistic effects of oxygen vacancies and heterojunctions promote exciton dissociation

Chenghui Wen et al.

Summary: An AgBr/BiOBr S-scheme heterojunction composite material with surface oxygen vacancies was synthesized to enhance exciton dissociation and carrier transfer in photocatalytic processes. The introduction of oxygen vacancies and S-scheme heterojunctions facilitated the generation of reactive oxygen species and improved the degradation efficiency of sulfonamide antibiotics under visible light.

CHEMICAL ENGINEERING JOURNAL (2022)

Review Engineering, Environmental

Immobilization of zinc oxide-based photocatalysts for organic pollutant degradation: A review

Anh Thi Le et al.

Summary: The immobilization of ZnO-based photocatalysts on supportive substrates is an important research area in the field of organic pollutant removal. This review discusses the recent development of supportive substrates, immobilization methods, and the photocatalytic performances of the immobilized systems. Glass substrates have been widely used, but polymetric materials are emerging as promising substrates due to their stretchability, flexibility, and low cost. The hydrothermal method is favored for immobilizing ZnO-based photocatalysts due to its ability to control the size and morphology of ZnO nanostructures. The photocatalysts show satisfactory performance in solutions with a pH range of 6.5-8. Future research should focus on flexible supporting substrates, increased specific surface area for both photocatalysts and substrates, lifespan of photogenerated charge carriers, stability, and industrial-scale applications.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2022)

Article Chemistry, Physical

Facile synthesis of W1-yFeyO3@NiO@RGO ternary nanohybrid with enhanced sunlight mediated photocatalytic and bactericidal activities for water purification

H. A. Alburaih et al.

Summary: In this research, a W0.98Fe0.02O3@NiO@RGO (WFN@RGO) nanohybrid with superior bactericidal and photo-catalytic properties was successfully fabricated via a two-step wet chemical process. The nanohybrid showed excellent catalytic stability and efficient degradation of MO dye under solar-light irradiation.

FLATCHEM (2022)

Article Chemistry, Physical

'Flower-like AgBr/CeO2 Z-scheme heterojunction photocatalyst with enhanced visible light photocatalytic and antibacterial activities

Changfeng Chen et al.

Summary: Synthesized by in situ deposition-precipitation method, flower-like AgBr/CeO2 Z-scheme photocatalysts showed optimal photocatalytic activity in 40 wt% AgBr/CeO2 composite, suitable for dye degradation and bacterial disinfection.

APPLIED SURFACE SCIENCE (2021)

Article Microbiology

Bacterial profile of high-touch surfaces, leftover drugs and antiseptics together with their antimicrobial susceptibility patterns at University of Gondar Comprehensive Specialized Hospital, Northwest Ethiopia

Atsedewoyn Firesbhat et al.

Summary: This study assessed the bacterial contaminants and antimicrobial susceptibility patterns in high-touch surfaces, leftover drugs, and antiseptics in five different hospital wards. It identified a variety of bacterial species and found high levels of antimicrobial resistance among the isolated bacteria.

BMC MICROBIOLOGY (2021)

Article Biotechnology & Applied Microbiology

Lactobacillus amylovorus derived lipase-mediated silver derivatization over poly(ε-caprolactone) towards antimicrobial coatings

Pranay Amruth Maroju et al.

Summary: Lipases-derived from Lactobacilli sp. were used to surface derivatize PCL films with silver, resulting in antimicrobial properties. Two different surface functionalization strategies were employed, both showing successful derivatization of silver over PCL film and enhanced antimicrobial effects in bacterial growth inhibition.

ENZYME AND MICROBIAL TECHNOLOGY (2021)

Article Nanoscience & Nanotechnology

Photocatalytic activity and photoelectrochemical properties of Ag/ZnO core/shell nanorods under low-intensity white light irradiation

M. J. Kadhim et al.

Summary: Zinc oxide (ZnO) nanorod thin films were prepared by CBD and silver (Ag) nanoparticles were synthesized on the surface using electrochemical methods. The average particle size of the Ag/ZnO/glass core/shell nanostructure was 20 nm, exhibiting photocatalytic activity in degrading methylene blue dye under visible light. Annealed Ag/ZnO core/shell nanostructure showed improved degradation efficiency, with specific capacitance of the electrodes remaining at approximately 99%.

NANOTECHNOLOGY (2021)

Article Multidisciplinary Sciences

A novel methodology to study antimicrobial properties of high-touch surfaces used for indoor hygiene applications-A study on Cu metal

T. Chang et al.

Summary: The study investigates the antimicrobial properties of metal-based high-touch surfaces, providing a more realistic and reproducible methodology for assessing their efficiency. Results show that bacteria interactions and extent of tarnishing can alter the physical properties of surfaces, highlighting the importance of considering changes in chemical and physical properties when evaluating the antimicrobial properties of indoor hygiene surfaces.

PLOS ONE (2021)

Article Nanoscience & Nanotechnology

Photo generated charge transport studies of defects-induced shuttlecock-shaped ZnO/Ag hybrid nanostructures

Siddharth Choudhary et al.

Summary: The stimulating effects of interfacial charge transfer process between spherical Ag nanoparticles and shuttlecock-shaped ZnO nanostructures were reported through UV-visible spectroscopy and x-ray absorption spectroscopy. The red shift in plasmonic peak, increase in Urbach energy, enhanced intensity of deep-level emission, and the presence of red and blue emissions evolving with temperature indicate the interfacial interactions and increased recombination rate of electron-hole pairs. The decrease in intensities and emerging features in O K-edge and Zn L-edge suggest the charge transfer from Ag to ZnO at the interface of ZnO/Ag hybrids. Additionally, the differences in absorption edges with alternating light on/off conditions were analyzed for potential applications of this ZnO-based system.

NANOTECHNOLOGY (2021)

Article Multidisciplinary Sciences

Multi-target mode of action of silver against Staphylococcus aureus endows it with capability to combat antibiotic resistance

Haibo Wang et al.

Summary: This study identifies 38 authentic Ag+-binding proteins in Staphylococcus aureus and captures a molecular snapshot of the dynamic bactericidal action of Ag. It validates that Ag can inhibit a key target in S. aureus through binding to catalytic His185, leading to enhanced antimicrobial efficacy and resensitization of MRSA to antibiotics. The multi-target mode of action of Ag endows its sustainable antimicrobial efficacy and provides a potential approach for combating antimicrobial resistance.

NATURE COMMUNICATIONS (2021)

Article Nanoscience & Nanotechnology

Quaternized Polydopamine Coatings for Anchoring Molecularly Dispersed Broad-Spectrum Antimicrobial Silver Salts

Hemanjali Mude et al.

Summary: By dispersing ionic silver at a molecular scale within coatings, broad-spectrum antimicrobial properties can be achieved. Using quaternary ammonium moiety-modified silver-derived materials can lead to excellent antimicrobial effects, with sustained bactericidal properties and inhibition of bacterial biofilm. The materials also demonstrate biocompatibility, showing potential for diverse applications on different surfaces.

ACS APPLIED BIO MATERIALS (2021)

Article Materials Science, Multidisciplinary

ZnO core-triggered nitrogen-deficient carbonaceous g-C3N4 shell enhances the visible-light-driven disinfection

Aniket Balapure et al.

Summary: A solid-state synthesis method produced ZnO@g-C3N4 core-shell nanocomposites with a nitrogen-deficient carbonaceous shell over a ZnO core. The nanocomposites showed enhanced photocatalytic performance for methylene blue degradation and visible-light-driven water disinfection, attributed to the thin carbonaceous shell. Additionally, the materials exhibited biocompatibility in toxicity studies with fibroblast feeder cells.

CARBON TRENDS (2021)

Article Public, Environmental & Occupational Health

Specific antibacterial activity of copper alloy touch surfaces in five long-term care facilities for older adults

M. Colin et al.

JOURNAL OF HOSPITAL INFECTION (2020)

Article Biophysics

Evidence of oxygen defects mediated enhanced photocatalytic and antibacterial performance of ZnO nanorods

Jaspal Singh et al.

COLLOIDS AND SURFACES B-BIOINTERFACES (2019)

Article Biophysics

UVA-induced antimicrobial activity of ZnO/Ag nanocomposite covered surfaces

Meeri Visnapuu et al.

COLLOIDS AND SURFACES B-BIOINTERFACES (2018)

Review Chemistry, Multidisciplinary

Review on the criteria anticipated for the fabrication of highly efficient ZnO-based visible-light-driven photocatalysts

Mahsa Pirhashemi et al.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY (2018)

Review Infectious Diseases

High-touch surfaces: microbial neighbours at hand

L. Cobrado et al.

EUROPEAN JOURNAL OF CLINICAL MICROBIOLOGY & INFECTIOUS DISEASES (2017)

Article Biochemistry & Molecular Biology

Elucidation of photocatalysis, photoluminescence and antibacterial studies of ZnO thin films by spin coating method

K. Kaviyarasu et al.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY (2017)

Article Chemistry, Multidisciplinary

One-pot synthesis of an AgBr/ZnO hierarchical structure with enhanced photocatalytic capacity

Shengnan Liu et al.

RSC ADVANCES (2017)

Article Nanoscience & Nanotechnology

Bioanalytical system for detection of cancer cells with photoluminescent ZnO nanorods

R. Viter et al.

NANOTECHNOLOGY (2016)

Review Nanoscience & Nanotechnology

ZnO based heterojunctions and their application in environmental photocatalysis

Xiuquan Gu et al.

NANOTECHNOLOGY (2016)

Article Chemistry, Multidisciplinary

Acrylate-based Polymerizable Sol-Gel Synthesis of Magnetically Recoverable TiO2 Supported Fe3O4 for Cr(VI) Photoreduction in Aerobic Atmosphere

Swapna Challagulla et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2016)

Article Engineering, Electrical & Electronic

Facile regeneration and photocatalytic activity of CuO-modified silver bromide photocatalyst

Yunfang Wang et al.

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING (2015)

Article Engineering, Electrical & Electronic

Facile one-pot method for preparation of AgI/ZnO nanocomposites as visible-light-driven photocatalysts with enhanced activities

Shirin Shaker-Agjekandy et al.

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING (2015)

Article Engineering, Chemical

Synthesis and characterization of ZnO with hexagonal dumbbell-like bipods microstructures

Yumin Liu et al.

ADVANCED POWDER TECHNOLOGY (2011)

Article Chemistry, Multidisciplinary

Characterization of Crystalline Zinc Oxide in the Form of Hexagonal Bipods

Marko Bitenc et al.

CRYSTAL GROWTH & DESIGN (2010)

Review Chemistry, Multidisciplinary

Vertically-aligned nanostructures of ZnO for excitonic solar cells: a review

Irene Gonzalez-Valls et al.

ENERGY & ENVIRONMENTAL SCIENCE (2009)

Article Materials Science, Multidisciplinary

Preparation and properties of vacuum deposited AgBr thin films

R Georgieva et al.

VACUUM (2002)