Development of new nanomaterials based on electrochemical sensors for the determin...
| Grant number: | 17/09123-9 |
| Support type: | Program for Research on Bioenergy (BIOEN) - Regular Program Grants |
| Duration: | December 01, 2017 - November 30, 2019 |
| Field of knowledge: | Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials |
| Principal Investigator: | Leonardo Lataro Paim |
| Grantee: | Leonardo Lataro Paim |
| Home Institution: | Universidade Estadual Paulista (UNESP). Campus de Rosana. Rosana , SP, Brazil |
Abstract
The energy and chemical uses of biomass occur through complex industrial platforms, which depend on the type of raw material and the operational efficiency of the conversion processes. The biomass compositional characterization is highly relevant for the optimization of lignocellulosic ethanol production processes. In view of the great importance of the compositional characterization of biomass combined with the need to develop new fast, sensitive and selective methods of determination, the project scope is development of sensors for the direct detection of carbohydrates and phenolic compounds derived from the acid hydrolysis process of sugarcane lignocellulosic materials using electrodes with graphite composite substrates and carbon nanotubes modified with molecularly printed polymers (MIPs) for use in the direct determination of carbohydrates and phenolic compounds such as glucose, xylose, arabinose , ferulic acid and 4-hydroxybenzoic acid. The MIPs will be synthesized by the electropolymerization method to form a composite system of MIP/nanomaterial. For this purpose, graphite composite electrodes with multi-walled carbon nanotubes (MWCNT) will be used as substrate for the films electropolymerization of o-phenylenediamine and aniline. The sensors, composed by MIP and graphite/MWCNT composite, should have high selectivity with good sensitivity and reproducibility, as well as the direct application to the hydrolysates of lignocellulosic material of sugarcane, with great possibility of rapid and direct analysis of carbohydrates and phenolic compounds in miniaturized and portable systems. (AU)