A5060243713- Nanoparticles: synthesis and applications
- Ultrasound and Cavitation Phenomena
- Quantum Dots Synthesis And Properties
- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Nanoplatforms for cancer theranostics
- Electrospun Nanofibers in Biomedical Applications
- Wound Healing and Treatments
- Dyeing and Modifying Textile Fibers
- Graphene research and applications
- Catalytic Processes in Materials Science
- Carbon and Quantum Dots Applications
- Antimicrobial agents and applications
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- 2D Materials and Applications
- Laser-Ablation Synthesis of Nanoparticles
- Bone Tissue Engineering Materials
- Bacterial biofilms and quorum sensing
- Semiconductor materials and devices
- Infection Control and Ventilation
- Advanced Memory and Neural Computing
- MXene and MAX Phase Materials
- Transition Metal Oxide Nanomaterials
- Advanced Battery Materials and Technologies
Bar-Ilan University
2016-2025
Alzheimer's Association of Israel
2015-2020
Institute of Nanotechnology
2014-2016
University of Milano-Bicocca
2015
Qatar University
2013
Universitat Politècnica de Catalunya
2008
Silver nanoparticles were synthesized and deposited on different types of fabrics using ultrasound irradiation. The structure silver-fabric composites was studied by physico-chemical methods. mechanism the strong adhesion silver to fibers is discussed. excellent antibacterial activity Ag-fabric composite against Escherichia coli (gram-negative) Staphylococcus aureus (gram-positive) cultures demonstrated.
Zinc oxide (ZnO) nanoparticles were synthesized and deposited on the surface of cotton fabrics using ultrasound irradiation. Optimization process resulted in a homogeneous distribution ZnO nanocrystals, 30 nm size, fabric surface. The mechanism ultrasound-assisted coating was proposed. antibacterial activities ZnO−fabric composite tested against Escherichia coli (Gram negative) Staphylococcus aureus positive) cultures. A significant bactericidal effect, even 0.75% coated (wt %), demonstrated.
Textiles are good substrates for growth of microorganisms especially under moisture and temperature conditions found in hospitals. Microbial shedding from the body occurs continuously at contact patient with textile materials used medical practices, contributing to occurrence hospital acquired infections. Thus, use efficient antimicrobial textiles is necessary prevent transfer pathogens infection incidence. In this work, hybrid coatings were generated on cotton fabrics by means a one-step...
Nanostructured chitosan (CS) and a chitosan–Zn based (Zn–CS) complex have been synthesized simultaneously deposited on cotton fabrics using ultrasound. SEM measurements revealed that the coating consists of nanoparticles (NPs) ca. 40 nm in diameter, homogeneously dispersed along yarns. XANES studies pointed out consisted less than 2.1 ZnO core to which was bonded. Additionally, FTIR indicated situ formation Zn–CS is only material surface. The antibacterial properties CS coated textiles were...
Zinc-doped copper oxide nanoparticles are synthesized and simultaneously deposited on cotton fabric using ultrasound irradiation. The optimization of the processing conditions, specific reagent ratio, precursor concentration results in formation uniform with an average size ≈30 nm. antibacterial activity Zn-doped CuO Cu₀.₈₈Zn₀.₁₂O a colloidal suspension or is tested against Escherichia coli (Gram negative) Staphylococcus aureus positive) bacteria. A substantial enhancement 10,000 times...
The emergence of bacteria resistant to antibiotics and the resulting infections are increasingly becoming a public health issue. Multidrug-resistant (MDR) responsible for leading increased morbidity mortality in hospitals, prolonged time hospitalization, additional burden financial costs. Therefore, there is an urgent need novel antibacterial agents that will both treat MDR outsmart bacterial evolutionary mechanisms, preventing further resistance development. In this study, green synthesis...
Solid matrix-supported liquid metal nanoparticles have been drawing attention as a nanoadditive in the fabrication of electroconductive flexible and soft materials. The present work reports facile, green, sonochemical synthesis approach gallium (Ga) embedded reduced graphene oxide (RGO) under ambient conditions for first time. as-synthesized ultrasonic energy-irradiated RGO/Ga nanocomposite was studied using SEM, TEM, DSC, XRD, XPS, solid-state NMR. Because their electrical conductivity,...
To realize a suitable supercapacitor nanomaterial, the recently developed technique of reaction under autogenic pressure at elevated temperature has been employed by us to synthesize SnO2 hexagonal nanocrystals and SnO2@C nanocomposites. The synthesis different temperatures (viz. 500, 600, 700 °C) yields three composites. Characterization these composites various methods confirms structural (XRD, Raman, FT-IR) nanoparticulate (TEM, HRTEM) nature synthesized materials. TEM studies including...
An important preventive measure for providing a bacteria-free environment the patients is introduction of highly efficient and durable antibacterial textiles in hospitals. This work describes single step sono-enzymatic process coating cotton medical with ZnO nanoparticles (NPs) gallic acid (GA) to produce biocompatible fabrics properties. Cellulose substrates, however, need pre-activation achieve sufficient stability NPs on their surface. Herein, this drawback overcome by simultaneous...
The carbon dot initiated polypyrrole (PPY) and CuO composite were synthesized into PPY@CuO using a simple one-step sonochemical approach. PPY the characterized Fourier-transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, 13C-solid-state nuclear magnetic resonance (NMR) UV–visible scanning electron microscopy. A strong interaction was demonstrated between chains CuO. This led to changes in backbone chain of when compared PPY. antibacterial activity against...
We report a facile and robust room-temperature NO
The first ever synthesis of submicron-sized rare earth hexaborides (RB6; R = La, Ce, Nd, Sm, Eu, and Gd) with a cubic morphology has been obtained by the single-step RAPET (reaction under autogenic pressure at elevated temperature) technique relatively low temperature 900 °C using metal acetate precursors. synthesized materials have characterized for their structural (XRD, XPS, Raman) morphological (TEM, HRTEM, FESEM) properties. XRD pattern confirms phase purity formation single compound...
Abstract Titanium oxide (TiO 2 ) nanoparticles (NPs) in their two forms, anatase and rutile, were synthesized deposited onto the surface of cotton fabrics by using ultrasonic irradiation. The structure morphology analyzed characterization methods such as XRD, TEM, STEM, EDS. antimicrobial activities TiO –cotton composites tested against Escherichia coli (Gram‐negative) Staphylococcus aureus (Gram‐positive) strains, well Candida albicans . Significant effect was observed, mainly In addition,...
One of the limitations in applications and commercialization metal oxides diverse fields is their inferior colloidal stability. The ability oxide nanoparticles (MONPs) to remain suspended form for long duration influenced by particle size capping efficiency surfactant employed. Among oxides, ZnO exploited as an effective biocidal agent. For practical applications, incorporation into liquids using a stabilizer importance, therefore synthesizing with high dispersity solution still remains...
Antimicrobial textiles can contribute to the fighting against antibiotic resistance pathogenic microorganisms. Polypyrrole is a conjugated polymer that exerts biocidal action thanks positive charges on its backbone chain produced during it synthesis. In this work, dispersions of stable polypyrrole nanoparticles were by chemical oxidative polymerization at room temperature in water. An ultrasound-assisted coating process was then used effectively treat polyester fabric with obtain an optimal...
In the context of nosocomial infections, there is an urgent need to develop efficient nanomaterials (NMs) with antibacterial properties for prevention infection diseases. Metal oxide nanoparticles (MeO-NPs) are promising candidates development new textiles. However, direct exposure MeO-NPs and MeO-coated NMs through skin contact could constitute a severe hazard human health. this work, toxicity copper zinc (CuO, ZnO) NPs antimicrobial-coated textiles was assessed on in vitro reconstructed 3D...
Abstract MXenes are a large class of 2D materials that consist few‐atoms‐thick layers transition metal carbides, nitrides, or carbonitrides. The surface functionalization has immense implications for their physical, chemical, and electronic properties. However, solution‐phase often leads to structural degradation the MXene electrodes. Here, non‐conventional, single‐step atomic reduction (ASR) technique is adopted (Ti 3 C 2 T x ) in an layer deposition reactor using trimethyl aluminum as...