Fabrication of electrochemical paper-based device aiming clinical and environmental applications

• Grant number: 18/14462-0
• Support type: Scholarships in Brazil - Doctorate
• Effective date (Start): March 01, 2019
• Effective date (End): May 31, 2022
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal researcher: Thiago Regis Longo Cesar da Paixão
• Grantee: Vanessa Neiva de Ataide
• Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

Paper is an inexpensive, affordable and disposable platform that has been used as a platform for chemical sensors in recent years; its use represents an alternative for conducting chemical analyzes in limited resources regions. One of the simplest ePAD (electrochemical Paper-based Analytical Devices) fabrication techniques that uses ready-to-use materials is pencil drawing, which consists of painting trails on paper with drawing pencils and it will be one of the proposed method that will be used in this project for the fabrication of the ePADs. In addition, it is intended to perform the treatment of these graphite surfaces with laser, in order to improve the electrochemical performance of the devices. Another approach to obtain ePADs with carbon materials is to explore the reduction of graphene oxide (GO). Thus, the objective is to obtain the rGO (reduced graphene oxide) using electrochemical techniques and by thermal reduction by laser on the paper surface and immobilize these materials at the paper surface in order to obtain the ePADs. The application of these ePADs fabricated by this project will be the detection of chemical species with clinical and environmental interest.

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)

ATAIDE, VANESSA N.; AMEKU, WILSON A.; BACIL, RAPHAEL R.; ANGNES, LUCIO; DE ARAUJO, WILLIAM R.; PAIXAO, THIAGO R. L. C. Enhanced performance of pencil-drawn paper-based electrodes by laser-scribing treatment. RSC ADVANCES, v. 11, n. 3, p. 1644-1653, JAN 13 2021. Web of Science Citations: 0.

ATAIDE, VANESSA N.; MENDES, LETICIA F.; GAMA, LILLIA I. L. M.; DE ARAUJO, WILLIAM R.; PAIXAO, THIAGO R. L. C. Electrochemical paper-based analytical devices: ten years of development. ANALYTICAL METHODS, v. 12, n. 8, p. 1030-1054, FEB 28 2020. Web of Science Citations: 0.

FERREIRA, PATRICK CESAR; ATAIDE, VANESSA NEIVA; SILVA CHAGAS, CYRO LUCAS; ANGNES, LUCIO; TOMAZELLI COLTRO, WENDELL KARLOS; LONGO CESAR PAIXAO, THIAGO REGIS; DE ARAUJO, WILLIAM REIS. Wearable electrochemical sensors for forensic and clinical applications. TRAC-TRENDS IN ANALYTICAL CHEMISTRY, v. 119, OCT 2019. Web of Science Citations: 1.