Green Synthesis of Silver Nanoparticles Using Apple Extract and Its Antibacterial Properties

By Z. A. Ali, R. Yahya, Shamala Devi Sekaran, R. Puteh. 2016

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Silver nanoparticles (AgNPs) were synthesized using apple extract as a reducing agent and aqueous silver nitrate as the precursor. The AgNPs formation was observed as a color change of the mixture from colorless to dark-brownish. The X-ray diffraction pattern confirmed the presence of only Ag crystallites, and the dynamic light scattering estimates the average sizes of the AgNPs to be 30.25 ± 5.26 nm. Furthermore, Fourier Transform Infrared as well as UV-vis spectroscopy identifies ethylene groups as the reducing agent and capping agent for the formation of the AgNPs. This green synthesis provides an economic, eco-friendly, and clean synthesis route to AgNPs. AgNPs in suspension showed activity against Gram-negative and Gram-positive bacteria with minimum bactericidal concentrations (MBCs) to be in the range from 125 μg/mL to 1000 μg/mL.

Subfields: Materials Chemistry, Organic Chemistry

View Paper: https://www.semanticscholar.org/paper/778b5fc761257dc9cbf888a60c162aefb5fa73e8