A5029242580- Nanoparticles: synthesis and applications
- Antibiotic Resistance in Bacteria
- Chromium effects and bioremediation
- Microbial Fuel Cells and Bioremediation
- Dental materials and restorations
- Bacterial biofilms and quorum sensing
- Heavy metals in environment
- Graphene and Nanomaterials Applications
- Bone Tissue Engineering Materials
- Pharmaceutical and Antibiotic Environmental Impacts
- biodegradable polymer synthesis and properties
- Advanced Nanomaterials in Catalysis
- Medicinal Plants and Neuroprotection
- Adsorption and biosorption for pollutant removal
- Anaerobic Digestion and Biogas Production
- Microplastics and Plastic Pollution
- Endodontics and Root Canal Treatments
- Dental Research and COVID-19
- Electrodeposition and Electroless Coatings
- Antimicrobial Peptides and Activities
- Microbial bioremediation and biosurfactants
- Antimicrobial agents and applications
- Magnesium Oxide Properties and Applications
- Medical and Biological Ozone Research
- Trace Elements in Health
Assiut University
2009-2023
Taif University
2012-2021
Kanazawa University
2006
Abstract Background . The development of dental caries is associated with various microorganisms and secondary formation the main cause restorations failure. advice for restorative materials that have antimicrobial properties has stimulated introduction containing different antibacterial agents. Objectives present study been designed to synthesize silver nanoparticles (AgNPs) incorporate AgNPs amoxicillin into glass ionomer cement (GIC) synergize its effect on oral microbes. added agents...
Objectives: Due to the expanded bacterial genetic tolerance antibiotics through different mechanisms, infectious diseases of MDR bacteria are difficult for treatment. Consequently, we synthesized drug conjugated nanoparticles dissolve this problem. Moreover, present study aims display cell death status treated with cefotaxime-CS-AgNPs and also, apoptosis pathways human RPE-1 normal cells MCF-7 breast cancer cells. Methods: Here, demonstrate possibility synthesize AgNPs conjugate them...
Polyhydroxybutyrate (PHB) is a biopolymer formed by some microbes in response to excess carbon sources or essential nutrient depletion. PHBs are entirely biodegradable into CO2 and H2O under aerobic anaerobic conditions. It has several applications various fields such as medicine, pharmacy, agriculture, food packaging due its biocompatibility nontoxicity nature.In the present study, PHB-producing bacterium was isolated from Dirout channel at Assiut Governorate. This isolate characterized...
Sixty six isolates of Pseudomonas spp. were isolated from wastewater El-Malah canal located in Assiut, Egypt and checked for their heavy metal tolerance. One isolate has tested its multiple resistances found to be plasmid mediated with molecular weight 27 Kb nickel lead. It was identified as aeruginosa ASU 6a. Its minimal inhibitory concentration (MIC) Cu(2+), Co(2+), Ni(2+), Zn(2+), Cr(3+), Cd(2+)and Pb(2+) 6.3, 5.9, 6.8, 9.2, 5.8, 4.4, 3.1 mM, respectively. Growth kinetics the maximum...
Polyhydroxybutyrates (PHBs) are macromolecules synthesized by bacteria. Because of their fast degradability under natural environmental conditions, PHBs were selected as alternatives for the production biodegradable plastics. Sixteen PHB-accumulating strains and compared ability to accumulate PHB granules inside cells. Isolate AS-02 was isolated from cattle manure identified Bacillus wiedmannii OK576278 means 16S rRNA analysis. It found be best producer. The optimum pH, temperature,...
In the present study, Zingiber officinale is used for synthesis of capped silver nanoparticles (ZOE-AgNPs) and compares antimicrobial efficacy compressive strength conventional glass ionomer cement (GIC) combined with ZOE-AgNPs, lyophilized miswak, chlorhexidine diacetate (CHX) against oral microbes. Five groups disc-shaped GIC specimens were prepared. Group A: miswak combination, B: ZOE-AgNPs combinations, C: CHX D: + GIC; E: Conventional GIC. Results confirmed successful formation that was...
Caries lesions during cement repairs are a severe issue, and developing unique antimicrobial restorative biomaterial can help to reduce necrotic lesion recurrence. As result, Thymus vulgaris extract was used biosynthesize copper nanoparticles (TVE-CuNPs) exhibiting different characteristics (TVE). Along with TVE-CuNPs, commercial silver (AgNPs) metronidazole were combined glass ionomer (GIC) test its antibacterial efficacy compressive strength. FTIR, XRD, UV-Vis spectrophotometry, TEM...
The prevalence of multidrug-resistant (MDR) bacteria has recently increased dramatically, seriously endangering human health. Herein, amoxicillin (Amoxi)-conjugated gold nanoparticles (AuNPs) were created as a novel drug delivery system to overcome MDR bacteria. isolated from variety infection sources. Phenotype, biotype, and 16S rRNA gene analyses used for isolate identification. Additionally, Juniperus excelsa was the production AuNPs. conjugation AuNPs with Amoxi using sodium...
The effects of cadmium stress on growth, morphology, and protein expression were investigated in Rhodobacter capsulatus B10 using two-dimensional polyacrylamide gel electrophoresis a scanning electron microscope with an energy dispersive X-ray spectrometer. bacterium grew the presence 150 microM CdCl2 highly induced heat-shock proteins (GroEL Dnak), S-adenosylmethionine synthetase, ribosomal S1, aspartate aminotransferase, phosphoglycerate kinase. Interestingly, S1 was proportionally...
In the present study, 23 isolates, dominated by bacterial genera (74%) were isolated from petroleum sludge at refinery wastewater plant, Jeddah, KSA, means of selective enrichment in nutritionally optimized (NORWW) and over twelve successive transfers. Efficiency biodegradation on complex mixture hydrocarbons was evidenced changes both total viable counts (TVC) COD content cultivation broth. Out isolates three most potent named BDCC-TUSA-8, BDCC-TUSA-12 BDCC-TUSA-18 selected for their...