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Detection and quantification of environmental important dyes using biomimetic sensors based on fiber optics and molecularly imprinted polymers

Grant number: 11/17552-0
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): November 01, 2011
Effective date (End): November 30, 2015
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Maria Del Pilar Taboada Sotomayor
Grantee:Marcos Vinicius Foguel
Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Associated research grant:08/10449-7 - Assessment of occurrence, toxicity/genotoxicity and degradation processes of dyes in effluents and surface water, AP.TEM
Associated scholarship(s):13/02576-7 - Molecularly imprinted polymers immobilization on optical fiber for the development of biomimetic sensors for textile dyes, BE.EP.DR


Industrial effluents containing dyes are daily released to the environment. The launch of textile effluents causes a considerable environmental degradation, changing the natural color and forming foam on the water surface. Among these dyes, the class of dyes of the triphenylmethane family is widely used in the textile industry and presents problems for public health and the environment when discharged into wastewater, due to the high toxicity and degradation difficult.An alternative for the detection and quantification of these compounds is the development of biomimetic sensors with optical transduction, employing as recognition system Molecularly Imprinted Polymers (MIP). The advantage of this methodology is the good selectivity, sensitivity and stability of the MIP and low cost of materials used in the synthesis of these biomimetic polymers. This project proposes to develop biomimetic sensors through immobilization of MIPs on the surface of the common end of a bifurcated bundle of optical fibers for the determination and quantification of triphenylmethane dyes (acid violet 19, basic red 9, brilliant green, acid green 16 and basic green 1) in different matrices and industrial effluents. The proposed immobilization of MIPs on the surface of the optical fiber will be through covalent binding via silanization, employing silanizing agents such as amino-propyl-trietoxisilano (amino-silane) and chloro-propyl-trimetoxisilano (chloro-silane); and/or by polymerization in bulk directly to the common end of a bifurcated bundle of optical fibers. Parameters to optimize the synthesis of MIP in the fiber optics, as well as parameters to optimize the optode response for each analyte should be studied. Biomimetic sensors that showed the most promising responses may be coupled in flow in order to obtain an automated porcess. Finally, the systems will be tested in the analysis of samples containing the analytes proposed. (AU)

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Scientific publications (4)
(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)
DO PRADO, THIAGO M.; FOGUEL, MARCOS V.; GONCALVES, LUIS MOREIRA; SOTOMAYOR, MARIA DEL PILAR T.. beta-Lactamase-based biosensor for the electrochemical determination of benzylpenicillin in milk. SENSORS AND ACTUATORS B-CHEMICAL, v. 210, p. 254-258, . (11/17552-0)
FOGUEL, MARCOS V.; TON, XUAN-ANH; ZANONI, MARIA V. B.; SOTOMAYOR, MARIA DEL PILAR T.; HAUPT, KARSTEN; BUI, BERNADETTE TSE SUM. A molecularly imprinted polymer-based evanescent wave fiber optic sensor for the detection of basic red 9 dye. SENSORS AND ACTUATORS B-CHEMICAL, v. 218, p. 222-228, . (08/10449-7, 11/17552-0, 13/02576-7)
FOGUEL, MARCOS VINICIUS; BELLO PEDRO, NATACHA THAISA; WONG, ADEMAR; KHAN, SABIR; BOLDRIN ZANONI, MARIA VALNICE; TABOADA SOTOMAYOR, MARIA DEL PILAR. Synthesis and evaluation of a molecularly imprinted polymer for selective adsorption and quantification of Acid Green 16 textile dye in water samples. Talanta, v. 170, p. 244-251, . (14/07009-6, 08/10449-7, 11/17552-0, 14/25264-3)
FOGUEL, MARCOS VINICIUS; BELLO PEDRO, NATACHA THAISA; BOLDRIN ZANONI, MARIA VALNICE; TABOADA SOTOMAYOR, MARIA DEL PILAR; TURNER, A; TANG, A. Molecularly imprinted polymer (MIP): a promising recognition system for development of optical sensor for textile dyes. BIOSENSORS 2016, v. 27, p. 2-pg., . (14/25264-3, 08/10449-7, 14/07009-6, 11/17552-0)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
FOGUEL, Marcos Vinicius. Detecção e quantificação de corantes de importância ambiental empregando sensores químicos baseados em fibras ópticas e polímeros molecularmente impressos. 2015. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Instituto de Química. Araraquara Araraquara.

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