Synthesis and characterisation of gold nanoparticles using Mentha piperita leaf extract: a green, non-toxic and rapid method Online publication date: Sat, 24-Jan-2015
by Germán Ayala Valencia; Luci Cristina De Oliveira Vercik; Leticcia Gavião Ferreira; Jaiber Humberto Rodríguez Llanos; Andrés Vercik
International Journal of Nano and Biomaterials (IJNBM), Vol. 5, No. 2/3, 2014
Abstract: Eco-friendly synthesis of gold nanoparticles (AuNPs) using Mentha piperita leaf extract was addressed in this work. Different extract concentrations (0.5, 1.0 and 1.5% w/v) were used for the synthesis of AuNPs. Reaction rate increased with temperature and leaf extract concentration; however, prolonged heating might affect negatively the AuNPs synthesis. AuNPs in colloid state were synthesised in acid pH (between 2.5 and 3.1), with potentials for charged surface between -21.8 and -24.1 mV, these colloids were highly stable for a storage time of four weeks. Bioreduction has generated AuNPs with spherical and triangular shape and size range between 3-26 nm for all concentrations of leaf extract, indicating a weak dependence of the nanoparticle size on extract concentrations. The present work, thus, offers a simple, rapid and non-toxic process for the synthesis of AuNPs that would potentially be used in different areas such as foods, cosmetic, medicine, electronics and polymer science.
Online publication date: Sat, 24-Jan-2015
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Nano and Biomaterials (IJNBM):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email email@example.com