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

• Main Authors: Ali, Z.A., Yahya, R., Sekaran, S.D., Puteh, R.
• Format: Article
• Language: English
• Published: Hindawi Publishing Corporation 2016
• Subjects: QD Chemistry
• Online Access: http://eprints.um.edu.my/17512/1/AliZA_%282016%29.pdf; http://eprints.um.edu.my/17512/; http://dx.doi.org/10.1155/2016/4102196

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.