Development of portable electrochemical devices on polymer materials using CO2 laser for analytical applications

• Grant number: 18/16250-0
• Support type: Scholarships in Brazil - Doctorate
• Effective date (Start): November 01, 2018
• Effective date (End): June 30, 2022
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal researcher: Thiago Regis Longo Cesar da Paixão
• Grantee: Letícia Francine Mendes
• Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

Clinical analyzes are currently important for biological biomarkers detection in the human organism in order to detect different types of diseases. In places with low infrastructure, it is difficult to carry out these analyzes, therefore, the development of disposable, low-cost and easy access devices have become increasingly interesting. This implies in performing analyzes without the need of very specialized locals and well-equipped laboratories. Thus, the aim of this project is to develop disposable electrochemical devices exploring the modification of polymeric substrates with carbon materials. The main process to obtain this modification will be the use of a CO2 laser to carbonize the surface obtained the electrodes on the surface of the polymeric layer. This process could provide low-cost and flexible devices that could be couple with wearable sensors platforms in the future. (AU)

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)

BALDO, THAISA A.; DE LIMA, LUCAS FELIPE; MENDES, LETICIA F.; DE ARAUJO, WILLIAM R.; PAIXAO, THIAGO R. L. C.; COLTRO, WENDELL K. T. Wearable and Biodegradable Sensors for Clinical and Environmental Applications. ACS APPLIED ELECTRONIC MATERIALS, v. 3, n. 1, p. 68-100, JAN 26 2021. Web of Science Citations: 0.

CLARK, KAYLEE M.; SKRAJEWSKI, LAUREN; BENAVIDEZ, TOMAS E.; MENDES, LETICIA F.; BASTOS, ERICK L.; DORR, FELIPE A.; SACHDEVA, RAKESH; OGALE, AMOD A.; PAIXAO, THIAGO R. L. C.; GARCIA, CARLOS D. Fluorescent patterning of paper through laser engraving. SOFT MATTER, v. 16, n. 33, p. 7659-7666, SEP 7 2020. Web of Science Citations: 0.

MENDES, LETICIA FRANCINE; DE SIERVO, ABNER; DE ARAUJO, WILLIAM REIS; LONGO CESAR PAIXAO, THIAGO REGIS. Reagentless fabrication of a porous graphene-like electrochemical device from phenolic paper using laser-scribing. Carbon, v. 159, p. 110-118, APR 15 2020. Web of Science Citations: 0.