Bioprotonic transistors using eumelanin thin films

• Grant number: 14/25332-9
• Support type: Scholarships abroad - Research Internship - Doctorate (Direct)
• Effective date (Start): April 15, 2015
• Effective date (End): December 14, 2015
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Carlos Frederico de Oliveira Graeff
• Grantee: Luíz Gustavo Simão Albano
• Supervisor abroad: Clara Santato
• Home Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil
• Local de pesquisa : École Polytechnique de Montréal, Canada
• Associated to the scholarship: 13/09963-6 - Construction and characterization of vertical organic field effect transistors by using nanostructured materials as intermediate electrode, BP.DD

Abstract

Bioelectronics is an area with remarkable scientific and technological interest due to its vision to relate electronic and biological systems. Currently, one of the phenomena being studied is proton transport in natural materials. Devices based on hybrid protonic and electronic transport are also explored. In these devices, the hybrid behaviour of the transport as a function of the relative humidity may be observed using a number of organic materials, e.g. melanin. Melanin exhibits hybrid conductivity under different relative humidity conditions. Due to its special physicochemical properties and biocompatibility, melanin is an attractive candidate to assemble devices based on hybrid transport. Thus, the present project consists in exploring the protonic conduction of eumelanin thin films obtained from the main synthetic routes to develop bioprotonic transistors. Special attention will be given to electrical characterization of eumelanin thin films under different relative humidity conditions and to the electrochemical characterization of the material. After determining the best protonic conduction conditions, the devices will be assembled and characterized. (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)

ALBANO, LUIZ G. S.; DI MAURO, EDUARDO; KUMAR, PRAJWAL; CICOIRA, FABIO; GRAEFF, CARLOS F. O.; SANTATO, CLARA. Novel insights on the physicochemical properties of eumelanins and their DMSO derivatives. Polymer International, v. 65, n. 11, p. 1315-1322, NOV 2016. Web of Science Citations: 8.