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

Autor(es)

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

• Tipo de documento: Artigo Científico
• Fonte: ACS MEASUREMENT SCIENCE AU; v. 3, n. 3, p. 9-pg., 2023-06-21.

Resumo

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)

• Processo FAPESP: 17/21097-3 - Interações abelha-agricultura: perspectivas para a utilização sustentável
• Beneficiário: Osmar Malaspina
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 21/07989-4 - Dispositivos eletroquímicos por manufatura aditiva (impressão 3D) para o diagnóstico de doenças virais
• Beneficiário: Cristiane Kalinke
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
• Processo FAPESP: 22/01601-7 - Novos dispositivos eletroquímicos baseados em impressão 3D para a detecção de agrotóxicos em amostras de mel
• Beneficiário: Bruno Campos Janegitz
• Modalidade de apoio: Bolsas no Exterior - Pesquisa
• Processo FAPESP: 19/00473-2 - Desenvolvimento de biossensores eletroquímicos impressos em 3 dimensões (3D) com polímero PLA e grafeno para a determinação de biomoléculas e diagnóstico de doenças
• Beneficiário: Cristiane Kalinke
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado