Electrochemical device integrated with carbon nanotubes and metal nanoparticles fo...
| Grant number: | 14/11861-0 |
| Support type: | Scholarships in Brazil - Post-Doctorate |
| Effective date (Start): | December 01, 2014 |
| Effective date (End): | February 28, 2018 |
| Field of knowledge: | Engineering - Sanitary Engineering |
| Cooperation agreement: | Coordination of Improvement of Higher Education Personnel (CAPES) |
| Principal Investigator: | Marcos Roberto de Vasconcelos Lanza |
| Grantee: | Thais Tasso Guaraldo |
| Home Institution: | Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil |
| Associated research grant: | 13/02762-5 - Development of technologies to prevent pollution: degradation and monitoring online of antibiotics in sewage, AP.JP |
| Associated scholarship(s): | 15/14100-2 - Nanomaterials synthesis using ionic liquids aiming electrochemical sensors development for pharmaceutical compounds detection, BE.EP.PD |
Abstract Environmental contamination by recalcitrant pollutants has been studied for many researchers all over the world. The increasing growth of industrial and human activities has strongly contributed to the environmental pollution. Pharmaceutical compounds have been founded as pollutants in residual water, underground water and soil mainly due to extensive elimination of these substances by the human body and animals after use. Moreover, its presence in aquatic environment may cause side effects to organisms as algae, crustaceans, bacteria and fish as well as human beings because of the acute toxicity of most pharmaceuticals. Toxic effects of antibiotics contamination as sulfonamides revealed normal development disturb, growing and bioaccumulation in different aquatic plants. Besides, it has caused huge impact on soil microbial community as bacterial resistance e inhibition of natural mechanism of natural pesticides contamination and other xenobiotics.Electroanalytical techniques have been pointed out for the many advantages of these methods as in situ measurement possibility, short analysis time, instrumentation and materials low cost, high sensitivity, miniaturization and portability. For these reason, they have been applied to many substances determination.However, one of the biggest challenges of this field is the development of novel materials with high stability which could be used as efficient sensors on antibiotics detection. Carbon nanotubes modified electrodes (CNTs) have been employed as sensors on electroanalysis due to advantages as electronic properties, high mechanical resistance and superficial areas. Moreover, CNTs have also been modified with metallic nanoparticles aiming better catalytic activity. The template synthesis has revealed an increase on sensors` sensitivity as it is able to generate highly reproducible materials with high surface area.Therefore, the present project aims to explore a novel materials synthesis method based on carbon nanotubes modification and metallic nanoparticles obtained by template synthesis which shows potential application as electrochemical sensors on antibiotics determination. (AU) | |