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Mucilage-Capped Silver Nanoparticles For Glucose Electrochemical Sensing And Fuel Cell Applications, Ziad Khalifa, Moustafa Zahran Dr, Magdy Zahran Prof, Magdi Abdel Azzem Prof
Mucilage-Capped Silver Nanoparticles For Glucose Electrochemical Sensing And Fuel Cell Applications, Ziad Khalifa, Moustafa Zahran Dr, Magdy Zahran Prof, Magdi Abdel Azzem Prof
Chemical Engineering
A simple, cost-effective and green mucilage-capped silver nanoparticles (Mucilage-AgNPs) modified glassy carbon electrode (GC) composite was constructed for efficient and facile electrochemical oxidation of glucose for the first time. Mucilage-AgNPs were synthesized through the direct chemical reduction of Ag+ by mucilage extracted from Opuntia ficus-indica. Mucilage-AgNPs were identified and characterized using ultraviolet-visible spectroscopy, transmission electron microscopy and square wave voltammetry. Modification of the GC with AgNPs was carried out via a transfer-sticking technique with an immobilization time of 1 h. The Mucilage-AgNPs/GC composite was studied as a possible anode for glucose oxidation in a biofuel cell. The composite resulted in …
Dissolved Organic Matter-Capped Silver Nanoparticles For Electrochemical Aggregation Sensing Of Atrazine In Aqueous Systems, Ziad Khalifa, Moustafa Zahran Dr, Magdy Zahran Prof, Magdi Abdel Azzem Prof
Dissolved Organic Matter-Capped Silver Nanoparticles For Electrochemical Aggregation Sensing Of Atrazine In Aqueous Systems, Ziad Khalifa, Moustafa Zahran Dr, Magdy Zahran Prof, Magdi Abdel Azzem Prof
Chemical Engineering
An electrochemical sensor based on silver nanoparticles (AgNPs) was developed by immobilizing dissolved organic matter (DOM) to interact with AgNPs on a glassy carbon electrode (GC), forming a DOM/AgNP/GC composite. AgNPs have been fabricated and characterized using ultraviolet−visible spectroscopy, fluorescence spectroscopy, and transmission electron microscopy. The immobilization efficiency and stability of the DOM/AgNP/GC composite have been optimized through studying the effects of electrode material type, immobilization technique, sticking duration, supporting electrolyte, and pH using square wave anodic stripping voltammetry. The detection of atrazine (Atz), a common herbicide, in aqueous systems has a great significance because of its toxicity to humans …