Evaluation of Electrochemical Properties of Glucose/O2 Implantable Biofuel Cell

• Grant number: 13/07829-0
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: October 01, 2013
• End date: September 30, 2017
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Frank Nelson Crespilho
• Grantee: Fernanda Cristina Pena Ferreira Sales
• Host Institution: Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

Biofuel cell (BFC) are biodevices that converters chemical energy in electric energy, where biocatalysts (enzymes or microorganism) are used in the redox reaction. In the case of BFC type enzymatic, enzymes are used in the surface cathodic and/or anodic and they are responsible for accelerating the conversion of substrates in products. The state-of-the-art indicates that enzymatic BFC can be implanted and used as energy converters for pacemakers, insulin pumps, neural implants, electrical biostimulators and drugs delivery devices. However, the power density for implantable BFC developed until now is not sufficient to feed an electric circuit present in medical devices. Thus, this project aims to evaluate the electrochemical properties of glucose/O2 BFC in order to improve the electrocatalytic efficiency of the flexible carbon fiber (FCF) electrodes. For the bioanode preparation, glucose oxidase and glucose dehydrogenase will be used, whereas for the construction of biocathode, bilirubin oxidase enzyme will be used. In order to improve the electrons transfer at the interface electrode/enzymes, the surface of FCF will be modified with redox mediators, such as neutral red, polyneutral red and benzyl viologen. The electrocatalytic efficiency of the electrodes will be evaluated by cyclic voltammetry, polarization curves, as well as other techniques. Finally, the performance of BFC will be evaluated.

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)

RODRIGUES, FERNANDO POSTALLI; MACEDO, LUCYANO J. A.; MAXIMO, LEANDRO N. C.; SALES, FERNANDA C. P. F.; DA SILVA, ROBERTO S.; CRESPILHO, FRANK N.. Real-time redox monitoring of a nitrosyl ruthenium complex acting as NO-donor agent in a single A549 cancer cell with multiplex Fourier-transform infrared microscopy. NITRIC OXIDE-BIOLOGY AND CHEMISTRY, v. 96, p. 29-34, MAR 1 2020. (13/07829-0, 16/12707-0, 15/16672-3, 13/14262-7, 17/20493-2, 14/03964-3)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SALES, Fernanda Cristina Pena Ferreira. Development of Implantable Glucose and Oxygen Biofuel Cell in Insects. 2017. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Química de São Carlos (IQSC/BT) São Carlos.