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Disposable sensors with conductive ink based on graphite and shellac on waterproof paper for detection of sulfamethoxazole

Grant number: 20/04189-4
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): July 01, 2020
Effective date (End): January 26, 2021
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Bruno Campos Janegitz
Grantee:Julia Melo Henrique
Host Institution: Centro de Ciências Agrárias (CCA). Universidade Federal de São Carlos (UFSCAR). Araras , SP, Brazil


In the current social panorama, production and time are factors that stand out in the most varied forms of work. The importance of performing analyses quickly, safely, and at relatively low cost, has been encouraging the interest of the scientific community, towards the search of new devices that prioritize precision and time. New electrochemical systems like this gain prominence, since the miniaturization of these devices, proves to be advantageous, due to these systems have reduced sample volumes, forming a small amount of waste, also reducing analysis costs, based not only on analysis wastes but on all the necessary equipment for carrying out the analyzes. Considering this information, the authors sought to build an electrochemical sensor with disposable architecture, made from a conductive ink based on shellac, a resin of natural origin, and graphite, on a waterproof paper substrate for electrochemical detection of Sulfamethoxazole, an antibiotic of the sulfonamide class, found as a metabolic residue in environmental and food samples. From the developed sensor, there is a need to characterize it and apply it in samples of river water and distribution, and milk samples. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
HENRIQUE, JULIA MELO; CAMARGO, JESSICA ROCHA; DE OLIVEIRA, GEISER GABRIEL; STEFANO, JESSICA SANTOS; JANEGITZ, BRUNO CAMPOS. Disposable electrochemical sensor based on shellac and graphite for sulfamethoxazole detection. Microchemical Journal, v. 170, . (19/23177-0, 17/21097-3, 20/04189-4)
CAMARGO, JESSICA R.; FERNANDES-JUNIOR, WILSON S.; AZZI, DEBORAH C.; ROCHA, RAQUEL G.; FARIA, LUCAS, V; RICHTER, EDUARDO M.; MUNOZ, RODRIGO A. A.; JANEGITZ, BRUNO C.. Development of New Simple Compositions of Silver Inks for the Preparation of Pseudo-Reference Electrodes. BIOSENSORS-BASEL, v. 12, n. 9, p. 17-pg., . (20/04189-4, 19/23177-0, 17/21097-3, 19/26953-0)

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