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Biohybrid materials (kaolinite-amino acids) as luminescent sensors for organic emmerging pollutants.

Grant number: 18/26569-3
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): September 02, 2019
Effective date (End): March 19, 2020
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Principal researcher:Emerson Henrique de Faria
Grantee:Denis Talarico de Araujo
Supervisor abroad: Miguel Angel Vicente Rodriguez
Home Institution: Pró-Reitoria Adjunta de Pesquisa e Pós-Graduação. Universidade de Franca (UNIFRAN). Franca , SP, Brazil
Research place: Universidad de Salamanca (USAL), Spain  
Associated to the scholarship:17/01719-0 - Biohybrid materials (kaolinite-amino acid) as luminescent sensors for emerging pollutants, BP.DR


The contamination of rivers and springs due to increased industrial activities and neglect of environmental policies has been one of the most serious problems of modern society. And the situation is even more serious when it comes to emerging organic pollutants from increased consumption of cosmetics, medicines and cleaning supplies that are dumped into rivers through domestic sewage. Due to the lack of research and specific sensors for this class of pollutants, the risks to biome and human health are increasing every day. In the context presented, the main objective of this work is to obtain luminescent sensors for emerging organic pollutants such as: hormones, caffeine and potentially toxic metals such as chromium, using biohybrid luminescent materials structured from the modified kaolinite with amino acids through the organofunctionalization method. The choice of these materials is due to the potential of kaolinite application, its abundance and also the low cost, having its properties improved or increased by its modification with organic molecules, in this case, the amino acids that are also low cost, biodegradable and multifunctional. The sensor will be synthesized by the complexation of the material obtained with the lanthanide ion europium (III), which has higher emission intensities (in the form of organometallic complexes) and long emission life times, which increases its selectivity compared to the conventional detection methods, making it quite attractive for application in luminescent sensors of various contaminants.

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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)
DE ARAUJO, D. T.; DE PADUA, G. S.; PEIXOTO, V. G.; CIUFFI, K. J.; NASSAR, E. J.; VICENTE, M. A.; TRUJILLANO, R.; RIVES, V; PEREZ-BERNAL, M. E.; DE FARIA, E. H. Luminescent properties of biohybrid (kaolinite-proline) materials synthesized by a new boric acid catalyzed route and complexed to Eu3+. APPLIED CLAY SCIENCE, v. 192, JUL 2020. Web of Science Citations: 0.

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