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Volume 5, Issue 5 Res. Rev. J Mat. Sci. 2017
ISSN: 2321-6212 Advanced Materials 2017
September 07-08, 2017
September 07-08, 2017 | Edinburgh, Scotland
Advanced materials & Processing
11th International Conference on
Starch capped silver nanoparticles as colorimetric sensor for hydrogen peroxide recognition in aqueous medium
Abdelaziz Elgamouz and Baraa Hafez
University of Sharjah, UAE
In the present study, starch capped silver nanoparticles (AgNP) were synthesized successfully and characterized by using Fourier
transform infrared spectroscopy, scanning electronmicroscopy, dynamic light scattering and energy-dispersive X-ray Spectroscopy.
The nanoparticles were used for the sensing of hydrogen peroxide based on a colorimetric technique. The nanoparticles were
synthesized in a One pot reactor using AgNO3 as Ag source and sodium borohydride (NaBH4), as reducing agent. The silver catalytic
ability for the decomposition of hydrogen peroxide was assessed using different concentration of AgNP, pH effect, temperature effect
and different loads of hydrogen peroxide. The yellow-greenish color of the silver nanoparticles solution was found to change gradually
to a transparent solution.
Biography
Abdelaziz Elgamouz is an assistant Professor of bioanalytical Chemistry in the University of Sharjah. His research interest lies in coordination chemistry of
macrocyclic ligands that has been a fascinating area of current research interest all over the world. The continued interest and quest in designing new macrocyclic
ligands stem mainly from their use as models for protein-metal binding sites in a substantial array of metalloproteins in biological systems, as synthetic ionophores,
as models to study the magnetic ex- change phenomena, as therapeutic reagents in chelate therapy for the treatment of metal intoxication, as cyclic antibiotics
that owe their antibiotic actions to specific metal complexation, to study the guest- host interactions, and in catalysis. Recognition of the importance of complexes
containing macrocyclic ligands has led to a considerable effort being invested in developing reliable inexpensive synthetic routes for these compounds.
Abdelaziz Elgamouz et al., Res. Rev. J Mat. Sci. 2017, 5:5
DOI: 10.4172/2321-6212-C1-005