Molecularly imprinted polymer (biomimetic) based potentiometric sensor for atrazine

Prasad, Kamalesh; Prathish, K.P.; Gladis, J. Mary; Naidu, G. R. K.; Rao, T. Prasada

doi:10.1016/j.snb.2006.07.022

Cited by 84 publications

(45 citation statements)

References 13 publications

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“…18,39 To evaluate the response of MIPs to the specific binding of sertraline hydrochloride, the amount of the imprinted polymer was increased with a fixed amount of PVC. The results in Table 1 show that the membrane having the weight of PVC to MIP particles in the ratio 1:0.5 (10.3 wt.% of MIP) gave the best performance (membrane No.…”

Section: Effect Of Mip Particles To Pvc Ratiomentioning

confidence: 99%

“…Despite the relatively simple transduction of the potentiometric signal, only limited reports on the design of the potentiometric sensors have been based on the molecular imprinting technology. These reports describe the dispersion of the MIP particles in the plasticizer and their embedment in a polyvinylchloride (PVC) matrix, [18][19][20][21] the formation of a glassy membrane, 22 the template assembly on the polar surface of the indium tin oxide (ITO) glass plate 23,24 and the deposition of an MIP polymeric film on the gate surface of an ion-sensitive field-effect transistor. 25,26 The prescription of new antidepressant drugs has increased dramatically in the last few years.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis by precipitation polymerization of a molecularly imprinted polymer membrane for the potentiometric determination of sertraline in tablets and biological fluids

Arvand¹,

Hashemi²

2012

J. Braz. Chem. Soc.

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Um quimiossensor potenciométrico para determinação seletiva de sertralina foi desenvolvido, baseado na técnica de impressão molecular. O polímero impresso molecularmente foi sintetizado através da polimerização por precipitação, usando hidrocloreto de sertralina como molécula molde, ácido metacrílico como monômero funcional e dimetacrilato de etileno glicol como um agente de ligação cruzada. O sensor foi desenvolvido pela dispersão das partículas de polímero impressas na sertralina, em plastificante dibutil sebacato e incorporação em matiz de poli(cloreto de vinila). As características do sensor proposto foram avaliadas medindo a resposta do potencial para hidrocloreto de sertralina, no intervalo de 1,0 µmol L -1 a 10 mmol L -1 com resposta Nernstiniana de 57,7 mV década -1 e um limite de detecção de 0,8 µmol L -1 . Os coeficientes de seletividade potenciométrica do sensor proposto foram avaliados e exibiram boa seletividade para sertralina com relação a outros antidepressivos. Foi usado como eletrodo indicador na determinação potenciométrica de sertralina em comprimidos e fluidos biológicos.A potentiometric chemosensor for selective determination of sertraline was developed based on the molecular imprinting technique. The molecularly imprinted polymer was synthesized by precipitation polymerization, using sertraline hydrochloride as a template molecule, methacrylic acid as a functional monomer and ethylene glycol dimethacrylate as a cross-linking agent. The sensor was developed by dispersing the sertraline imprinted polymer particles in dibutyl sebacate plasticizer and embedding in poly(vinyl chloride) matrix. Characteristics of the proposed sensor were evaluated by measuring the potential response to sertraline hydrochloride in the range from 1.0 µmol L -1 to 10 mmol L -1 with a near Nernstian response of 57.7 mV decade -1 and a limit of detection of 0.8 µmol L -1 . The potentiometric selectivity coefficients of the proposed sensor were evaluated and it exhibited good selectivity to sertraline with respect to the other antidepressants. It was used as indicator electrode in potentiometric determination of sertraline in tablets and biological fluids.

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Section: Effect Of Mip Particles To Pvc Ratiomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis by precipitation polymerization of a molecularly imprinted polymer membrane for the potentiometric determination of sertraline in tablets and biological fluids

Arvand¹,

Hashemi²

2012

J. Braz. Chem. Soc.

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“…All of them were based on the use of very thin membranes or films (Zhou et al, 2004). Prasad et al (2007) report a new strategy to construct a potentiometric biomimetic sensor for direct, rapid and highly selective detection of atrazine. The stability, reusability and dynamic response time are analogous to conventional chemical sensors.…”

Section: Transducersmentioning

confidence: 99%

New Materials in Electochemical Sensors for Pesticides Monitoring

Goicolea¹,

Gómez‐Caballero²,

Barrio³

2011

Pesticides - Strategies for Pesticides Analysis

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“…Finally, MIP for atrazine was prepared according to Prasad et al [24] as follows: atrazine (1 mmol) was dissolved in toluene (5 mL) in a dried 30 mL test tube and the functional monomer (MAA, 4 mmol), EGDMA (20 mmol) and AIBN (50 mg) were added and the components were gently mixed. Then the reaction mixture was…”

Section: Preparation Of Molecularly Imprinted Polymers (Mips)mentioning

confidence: 99%

Removal of endocrine‐disrupting compounds from water using macroporous molecularly imprinted cryogels in a moving‐bed reactor

Noir

Plieva²,

Mattìasson³

2009

J of Separation Science

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Original PaperRemoval of endocrine-disrupting compounds from water using macroporous molecularly imprinted cryogels in a moving-bed reactorHighly efficient removal of endocrine-disrupting compounds (EDCs) such as 17b-estradiol (E2), 4-nonylphenol (NP) and atrazine from water was achieved using a novel macroporous adsorption medium. The medium consisted of a macroporous poly(vinyl alcohol) (PVA) cryogel with molecularly imprinted polymer (MIP) particles embedded in it. The MIP was prepared using E2, NP and atrazine as templates. The macroporous composite molecularly imprinted cryogels were formed inside the open-ended protective shells, known as Kaldnes carriers. These adsorbents (defined as Macroporous Gel Particles, MGPs) were evaluated on the removal of E2, NP and atrazine from water using different column configurations, namely column filled with the MGPs (packed-bed column) and in moving-bed reactors (defined here as moving-bed MGPs reactor). Complete binding (A 99%) of E2 from a spiked aqueous solution (1 mg/L) was achieved using E2-MIP/MGPs in a moving-bed MGPs reactor at the retention time in the reactor of 4 min, while only 77% was bound to the nonimprinted medium (NIP/MGPs). Similar results were also obtained for the adsorption medium imprinted with atrazine. All contaminants studied (E2, atrazine and NP) were effectively removed from water at low (environmentally relevant) concentrations by the respective adsorption medium.

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Molecularly imprinted polymer (biomimetic) based potentiometric sensor for atrazine

Cited by 84 publications

References 13 publications

Synthesis by precipitation polymerization of a molecularly imprinted polymer membrane for the potentiometric determination of sertraline in tablets and biological fluids

Synthesis by precipitation polymerization of a molecularly imprinted polymer membrane for the potentiometric determination of sertraline in tablets and biological fluids

New Materials in Electochemical Sensors for Pesticides Monitoring

Removal of endocrine‐disrupting compounds from water using macroporous molecularly imprinted cryogels in a moving‐bed reactor

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