A5061243296- Marine Biology and Environmental Chemistry
- Polymer Surface Interaction Studies
- Microplastics and Plastic Pollution
- Surface Modification and Superhydrophobicity
- Nanoparticles: synthesis and applications
- Graphene and Nanomaterials Applications
- Advanced Nanomaterials in Catalysis
- Corrosion Behavior and Inhibition
- Metal and Thin Film Mechanics
- Bone Tissue Engineering Materials
- Laser-Ablation Synthesis of Nanoparticles
- Concrete Corrosion and Durability
- Electronic and Structural Properties of Oxides
- Environmental Chemistry and Analysis
- Polymer Nanocomposite Synthesis and Irradiation
- Copper-based nanomaterials and applications
- Algal biology and biofuel production
- Environmental Toxicology and Ecotoxicology
- Metal Extraction and Bioleaching
- Inorganic and Organometallic Chemistry
- Nanotechnology research and applications
- Synthesis of Tetrazole Derivatives
- Bacterial biofilms and quorum sensing
- Polymer Nanocomposites and Properties
- Polymer Science and PVC
Egyptian Petroleum Research Institute
2014-2023
National Institute for Materials Science
2021
Antifouling (AF) nanocoatings made of polydimethylsiloxane (PDMS) are more cost-efficient and eco-friendly substitutes for the already outlawed tributyltin-based coatings. Here, a catalytic hydrosilation approach was used to construct design inspired by composite mosquito eyes from non-toxic PDMS nanocomposites filled with graphene oxide (GO) nanosheets decorated magnetite nanospheres (GO-Fe3O4 nanospheres). Various GO-Fe3O4 hybrid nanofillers were dispersed into resin through solution...
A non-toxic foul-release model of silicone/spherical AgNP hybrid nanocomposites with enhanced hydrophobicity, self-cleaning, and marine fouling release performance.
Methods and ResultsMycelial cell‐free filtrate of A. brasiliensis ATCC 16404 was applied for mycosynthesis Co3O4‐NPs. The preliminary indication the formation Co3O4‐NPs change in colour from yellow to reddish‐brown. One‐factor‐at a time‐optimization technique determine optimum physicochemical conditions required they were found be: 72 h reaction time, pH 11, 30°C, 100 rev min−1 shaking speed darkness using 4 mmol l−1 CoSO4.7H2O 5·5% dry weight mycelium (w/v). mycosynthesized characterized...
Environmental concerns about the use of toxic antifoulants have increased demand to develop novel, environmentally-friendly antifouling materials. Silicone coatings are currently most effective non-toxic alternatives. This study focused on developing a model for silicone foul-release nanocomposites that were successfully designed, fabricated, characterized, and tailored toward (FR) coatings. A series elastomeric polydimethyl-siloxane (PDMS)/Cu2O nanocube composites with different nanofiller...
Since mycosynthesis of metal nanoparticles (NPs) is advertised as a promising and ecofriendly approach. Thus, this study aims to investigate the capability Aspergillus brasiliensis ATCC 16404 for silver NPs (AgNPs).One-factor-at-a-time-technique was used effect different physicochemical parameters: reaction time, pH, temperature, stirring rates, illumination, finally, concentrations nitrate fungal biomass on AgNPs. The visual observation showed characteristic brown colour formation due...
The effects of Ag@SiO2 core-shell nanofiller dispersion and micro-nano binary structure on the self-cleaning fouling release (FR) in modelled silicone nano-paints were studied. An ultrahydrophobic polydimethylsiloxane/Ag@SiO2 nanocomposite was prepared as an antifouling coating material. nanospheres with 60 nm average size a preferential {111} growth direction via facile solvothermal modified Stöber methods controlled shell thickness. nanofillers inserted composite surface solution casting...
AimsIn order to efficiently control the corrosive sulphate‐reducing bacteria (SRB), main precursor of microbial influenced corrosion (MIC) in oil industry, ability Trichoderma longibrachiatumDSMZ 16517 synthesize silver nanoparticles (AgNPs) was investigated and their biocidal activity against halotolerant SRB tested.
The present study reports a rapid one-step green synthesis of silver nanoparticles (AgNPs) using hot water extract Citrus sinensis (sweet orange) peels. A visible color change was observed from faint yellow to brown, upon the bioreduction nitrate with peels' and then stabilization synthesized AgNPs. UV–Vis spectrophotometric analysis proved characteristic absorption peak λmax 422 nm one-factor-at-a-time-optimization technique used effect key factors governing AgNPs, including temperature,...
The data presented in this article are related to the research entitled "Smart photo-induced silicone/TiO2 nanocomposites with dominant [110] exposed surfaces for self-cleaning foul-release coatings of ship hulls" (Selimet al., 2016) [1]. This reports on successfully designing and controlling TiO2 spherical single crystal photo-nanofillers indicating evidence fouling resistance after stimulation through UV radiation exposure. These also reveal that influence well-dispersed nanoparticles...
The energy and the world food crises have ignited interest in algal culture for making biodiesel, bioethanol, biobutanol other biofuels using land that is not suitable agriculture. Algal fuel an alternative to fossil uses algae as its source of natural deposits. Microalgal lipids are oils future sustainable biodiesel production. One most important roles obtaining oil from microalgae choice species. A total fifteen microalgal isolates, obtained brackish fresh waters, were assayed at...
Abstract Prohibition on the utilization of organotins compounds in antifouling (AF), and Fouling release (FR) paints have attracted considerable ineptest as an environmentally friendly alternative. In this work, ecofriendly series lotus‐like nano‐structured organic‐inorganic surfaces based vinyl terminated polydimethylsiloxane (PDMS)/ϒ‐Al 2 O 3 nanorods composites were successfully modeled for first time via in‐situ technique. The tailored nanocomposites cured hydrosilation mechanism applied...