Green synthesis of Ananas comosus (L.) Merr. based-silver nanoparticles and determination of their potential in electrochemical detection of H2O2

Abstract

It is possible to synthesize silver nanoparticles, which are used to increase the conductivity of carbon paste electrodes used in the design of biosensors that enable the determination of the amount of H2O2 in foods quickly, practically, and at low concentrations. Silver nanoparticles used in electrode modification could be obtained cheaply and eco-friendly by green synthesis technique in which bio-waste is used as electron precursor. In this study, the bio-waste leaves of pineapple (Ananas comosus (L.) Merr.) were used in the green synthesis of silver nanoparticles (A-AgNPs). Main aim of this study is to determine the potential usage of synthesized A-AgNPs in the area of new biosensor applications. It was determined that A-AgNPs had maximum absorbance at similar to 450 nm, sized between similar to 40 and 70 nm, strong signal at 3 keV, and silver peaks representing 111 degrees, 200 degrees, 220 degrees, and 311 degrees at 2 theta. The carbon paste electrode (CPE) was modified with the characterized A-AgNPs and linear detection range of H2O2 was determined as 0.1-1000 mu M. It was determined that silver nanoparticles obtained from waste pineapple leaves increased the surface functionality and enabled the determination of H2O2 in a wider concentration range. It could be conclueded that the synthesized nanoparticles have the potential to be used in biosensor technology. Therefore, bio-wastes can be used for nanoparticle synthesis in an environmentally friendly and economically feasible way.