The pH role about synthesis, distribution and potential applications of gold nanoparticles
by Blanca Estela Chávez-Sandoval; José Abraham Balderas-López; Francisco García-Franco; Ezel Jacome Galindo-Pérez; Anatolio Martínez-Jiménez; Miguel Ángel Antonio Ibáñez-Hernández
International Journal of Biomedical Nanoscience and Nanotechnology (IJBNN), Vol. 4, No. 1/2, 2020

Abstract: The synthesis of metallic nanoaprticles (NPs) is currently performed through the development of methodologies using microorganisms, plant extracts, and even organic waste, seeking to mitigate the impact on the environment. However, for both synthesis and biosynthesis it is necessary to consider physical and chemical factors such as temperature, stirring and pH, that allow controlling size and shape in an accurate way, as size and shape play an important role in the optical, electronic and thermal properties and determine many features of the structure and activity of molecules and biomolecules. In this work, we carry out chemical synthesis and biosynthesis of AuNPs at acidic (3-6), neutral (7) and basic (9) pH; the process is fast, simple and eco-friendly. We obtained AuNPs from 5-100 nm and determined that the pH of the solution is a key factor in the distribution and shape of the nanoparticles. Uniform AuNPs were obtained at neutral pH, or values of pH near neutrality. In addition, they have potential applications in various fields, due to their optical, magnetic, catalytic and electrical properties.

Online publication date: Thu, 07-May-2020

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
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 Biomedical Nanoscience and Nanotechnology (IJBNN):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your 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