TCE ForumWhats NewSearchOrderss


The Chemical Educator

ISSN: 1430-4171 (electronic version)

Table of Contents

Abstract Volume 21 (2016) pp 292-295

A Green and Economical Approach to the Synthesis of Bi-Metallic Nanoparticles in Detecting Catechol in the Presence of Vitamin C

Suzanne Kay Lunsford* and Stamatina Tolias

Wright State University Department of Chemistry, 3640 Colonel Glenn Hwy, Dayton Ohio,
Received September 22, 2016. Accepted November 7, 2016.

Published: 18 November 2016

Abstract. An economical and environmentally-friendly (Green) approach for the biosynthesis of nanoparticles to modify carbon electrode surfaces to detect catecholamine neurotransmitters has been the inquiry-based lab experiment developed. A green method was utilized in the creation of the nanoparticles through the use of Ananas Comosus extract (Pineapples), coffee, and Guayaki Yerba Mate. Cyclic Voltammetry was the electrochemical method utilized for the electrode selectivity data collection. In contrast to traditional chemical and physical nanoparticle synthesis methods, this Green alternative eliminates the use of hazardous chemicals such as surfactants, and chemical capping/reducing agents. With this quality in mind, household substances containing strong antioxidants and polyphenols, were analyzed for their capping and reducing capabilities in the growth of bi-metallic nanoparticles. The variety of antioxidant functions and distinguished structures sin these green alternative substances, are qualities that collectively reduce the metal ions (Ag+, Pd+2). For example, pineapple contains several individualistic nutrients such as manganese, vitamin C, phytochemicals, ferulic acid, and chlorgenic acid-all of which inhibit the oxidation process. In this study, the extracts of green household substances such as pineapples were utilized in the synthesis of Silver and Palladium nanoparticles. Scanning Electron Microscopy (SEM)/Energy Dispersive X-Ray Spectroscopy (EDS) spectroscopy was the method utilized in the characterization of the Green synthesis Silver and Palladium nanoparticles.

Key Words: Laboratories and Demonstrations; Analytical Chemistry; Quantitative Analysis

(*) Corresponding author. (E-mail:

Article in PDF format (67 KB) HTML format


The Chemical Educator 1996-2019