Novel Additive Manufactured Multielectrode Electrochemical Cell with Honeycomb Inspired Design for the Detection of Methyl Parathion in Honey Samples

Author(s)

Janegitz, Bruno C. ; Crapnell, Robert D. ; de Oliveira, Paulo Roberto ; Kalinke, Cristiane ; Whittingham, Matthew J. ; Ferrari, Alejandro Garcia-Miranda ; Banks, Craig E.

• Document type: Journal article
• Source: ACS MEASUREMENT SCIENCE AU; v. 3, n. 3, p. 9-pg., 2023-06-21.

Abstract

The development and increase in the number of crops recently have led to the requirement for greater efficiency in world food production and greater consumption of pesticides. In this context, the widespread use of pesticides has affected the decrease in the population of pollinating insects and has caused food contamination. Therefore, simple, low-cost, and quick analytical methods can be interesting alternatives for checking the quality of foods such as honey. In this work, we propose a new additively manufactured (3D-printed) device inspired by a honeycomb cell, with 6 working electrodes for the direct electrochemical analysis of methyl parathion by reduction process monitoring in food and environmental samples. Under optimized parameters, the proposed sensor presented a linear range between 0.85 and 19.6 mu mol L-1, with a limit of detection of 0.20 mu mol L-1. The sensors were successfully applied in honey and tap water samples by using the standard addition method. The proposed honeycomb cell made of polylactic acid and commercial conductive filament is easy to construct, and there is no need for chemical treatments to be used. These devices based on 6 working electrodes array are versatile platforms for rapid, highly repeatable analysis in food and environment, capable of performing detection in low concentrations. (AU)

• FAPESP's process: 17/21097-3 - Bee-agriculture interactions: perspectives to sustainable use
• Grantee: Osmar Malaspina
• Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
• FAPESP's process: 21/07989-4 - Additive-manufactured (3D printed) electrochemical devices for the diagnosis of viral diseases
• Grantee: Cristiane Kalinke
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• FAPESP's process: 22/01601-7 - Novel electrochemical devices based on 3D printing for the detection of pesticides in honey samples
• Grantee: Bruno Campos Janegitz
• Support Opportunities: Scholarships abroad - Research
• FAPESP's process: 19/00473-2 - Development of 3-dimensional (3D) printed electrochemical biosensors with PLA polymer and graphene for the determination of biomolecules and diagnosis of diseases
• Grantee: Cristiane Kalinke
• Support Opportunities: Scholarships in Brazil - Post-Doctoral