In situ study of action of quitosan biopolymer in the decontamination of metals and herbicides in aqueous system by electrochemistry coupled to high and low field NMR

• Grant number: 12/23169-8
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: August 01, 2013
• End date: April 30, 2018
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Luiz Alberto Colnago
• Grantee: Flavio Vinicius Crizostomo Kock
• Host Institution: Embrapa Instrumentação Agropecuária. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA). Ministério da Agricultura, Pecuária e Abastecimento (Brasil). São Carlos , SP, Brazil
• Associated scholarship(s): 15/16624-9 - Relaxometric characterization of a new platform of Gd-complexes based on the use of Gd-AAZTA functionalized with an acid function, BE.EP.DR

Abstract

Nuclear magnetic resonance (NMR), in high and low field, is one of the most important spectroscopy techniques used in qualitative and quantitative analysis. Recently, NMR started to be coupled with other analytical techniques such as chromatography and electrochemistry. The NMR research group Embrapa Instrumentation has used successfully in both the high-field NMR as in low field for studies of electrochemical reactions in situ (EC-NMR). Among these results in situ EC-NMR has been used to monitor electrodeposition reactions of copper, iron and manganese and electrodecomposition of organochlorine compounds. However, it has not been reported studies the use of EC-NMR technique to monitor the process of biosorption of metals and herbicides. Therefore, this application will be explore in this project that aims to monitor of the decontamination of metals such as iron, chromium, nickel and copper, as well as herbicides, as examples, Paraquat and Picloram in aqueous systems using an agent biosorption of the biopolymer chitosan and EC-NMR techniques. (AU)

Scientific publications

(11)

(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)

KOCK, FLAVIO V. C.; MACHADO, MAIARA P.; ATHAYDE, GEISAMANDA P. B.; COLNAGO, LUIZ A.; BARBOSA, LUCIO L.. Quantification of paramagnetic ions in solution using time domain NMR. PROS and CONS to optical emission spectrometry method. Microchemical Journal, v. 137, p. 204-207, MAR 2018. (17/12864-0, 12/23169-8)

HIGUERA-PADILLA, ANGEL RUBEN; KOCK, FLAVIO VINICIUS CRIZOSTOMO; BATISTA, ALZIR AZEVEDO; COLNAGO, LUIZ ALBERTO. A straightforward catalytic approach to obtain deuterated chloroform at room temperature. Magnetic Resonance in Chemistry, v. 58, n. 10, JUL 2020. (12/23169-8, 19/13656-8, 17/02197-7, 18/16040-5)

CRIZOSTOMO KOCK, FLAVIO VINICIUS; COLNAGO, LUIZ ALBERTO. Rapid and simultaneous relaxometric methods to study paramagnetic ion complexes in solution: An alternative to spectrophotometry. Microchemical Journal, v. 122, p. 144-148, SEP 2015. (12/23169-8)

CRIZOSTOMO KOCK, FLAVIO VINICIUS; COLNAGO, LUIZ ALBERTO. Rapid method for monitoring chitosan coagulation using low-field NMR relaxometry. Carbohydrate Polymers, v. 150, p. 1-4, OCT 5 2016. (12/23169-8, 14/22126-9)

FLÁVIO V. C. KOCK; LUIZ A. COLNAGO. NMR Relaxometry Applied to Chemical Studies of Paramagnetic Metal Cation Complexes: Fundamentals and Applications. Journal of the Brazilian Chemical Society, v. 33, n. 6, p. 509-522, 2022-05-30. (12/23169-8, 19/13656-8, 18/16040-5, 21/12694-3, 15/16624-9)

CRIZOSTOMO KOCK, FLAVIO VINICIUS; FORGACS, ATTILA; GUIDOLIN, NICOL; STEFANIA, RACHELE; VAGNER, ADRIENN; GIANOLIO, ELIANA; AIME, SILVIO; BARANYAI, ZSOLT. [Gd(AAZTA)](-) Derivatives with n-Alkyl Acid Side Chains Show Improved Properties for Their Application as MRI Contrast Agents**. CHEMISTRY-A EUROPEAN JOURNAL, v. 27, n. 5, p. 11-pg., 2020-12-28. (15/16624-9, 12/23169-8, 18/16040-5)

SILVA, SIMONE RODRIGUES; DUARTE, ERICA CORREIA; RAMOS, GUILHERME SANTOS; CRIZOSTOMO KOCK, FLAVIO VINICIUS; ANDRADE, FABIANA DIUK; FREZARD, FREDERIC; COLNAGO, LUIZ ALBERTO; DEMICHELI, CYNTHIA. Gadolinium(III) Complexes with N-Alkyl-N-methylglucamine Surfactants Incorporated into Liposomes as Potential MRI Contrast Agents. BIOINORGANIC CHEMISTRY AND APPLICATIONS, 2015. (12/23169-8)

CRIZOSTOMO KOCK, FLAVIO VINICIUS; FORGACS, ATTILA; GUIDOLIN, NICOL; STEFANIA, RACHELE; VAGNER, ADRIENN; GIANOLIO, ELIANA; AIME, SILVIO; BARANYAI, ZSOLT. [Gd(AAZTA)](-) Derivatives with n-Alkyl Acid Side Chains Show Improved Properties for Their Application as MRI Contrast Agents{*}{*}. CHEMISTRY-A EUROPEAN JOURNAL, v. 27, n. 5, DEC 2020. (15/16624-9, 12/23169-8, 18/16040-5)

CRIZOSTOMO KOCK, FLAVIO VINICIUS; HIGUERA-PADILLA, ANGEL RUBEN; SANTOS VIGATTO, MAIARA DA SILVA; MARTIN NETO, LADISLAU; COLNAGO, LUIZ ALBERTO. Magnetic resonance studies of copper (II) sorbitol complex, in solution, reveal a supramolecular structure compatible to the crystal structure. Magnetic Resonance in Chemistry, v. 57, n. 7, p. 404-411, JUL 2019. (12/23169-8, 14/22126-9, 17/02197-7, 18/16040-5)

CRIZOSTOMO KOCK, FLAVIO VINICIUS; MONARETTO, TATIANA; COLNAGO, LUIZ ALBERTO. Time-domain NMR relaxometry as an alternative method for analysis of chitosan-paramagnetic ion interactions in solution. International Journal of Biological Macromolecules, v. 98, p. 228-232, MAY 2017. (14/22126-9, 12/23169-8)

POLIANA M. SANTOS; FLÁVIO VINICIUS C. KOCK; MAIARA S. SANTOS; CARLOS MANUEL S. LOBO; ANDRÉ S. CARVALHO; LUIZ ALBERTO COLNAGO. Non-Invasive Detection of Adulterated Olive Oil in Full Bottles Using Time-Domain NMR Relaxometry. Journal of the Brazilian Chemical Society, v. 28, n. 2, p. 385-390, 2017-02-00. (13/03770-1, 14/22126-9, 12/23169-8, 11/11160-3)

Academic Publications

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

KOCK, Flavio Vinicius Crizostomo. Relaxometric analysis for coordination compounds contaning paramagnetic ions in solution. 2018. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Química de São Carlos (IQSC/BT) São Carlos.