Preparation of the molecularly imprinted polymers-based capacitive sensor specific for tegafur and its characterization by electrochemical impedance and piezoelectric quartz crystal microbalance

Liao, Haiping; Zhang, Zhaohui; Li, Hui; Nie, Lei; Yao, Shouzhuo

doi:10.1016/j.electacta.2004.04.003

Cited by 43 publications

(24 citation statements)

References 28 publications

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“…Alkanethiol is usually used to fill the defects of the membrane after electropolymerization to enhance the insulating properties, but this process and response time are rather long. 558 Yao et al 559 constructed a MIP-based capacitive sensor specific for tegafur, in which the sensitive membrane was employed at a lower potential scan rate instead of treating with alkanethiol after electropolymerization to acquire good insulating properties. So, it showed more satisfactory performances, e.g., no significant effects were observed upon addition of these interferents that have similar structures to tegafur.…”

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confidence: 99%

Molecular imprinting: perspectives and applications

et al. 2016

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a Molecular imprinting technology (MIT), often described as a method of making a molecular lock to match a molecular key, is a technique for the creation of molecularly imprinted polymers (MIPs) with tailor-made binding sites complementary to the template molecules in shape, size and functional groups. Owing to their unique features of structure predictability, recognition specificity and application universality, MIPs have found a wide range of applications in various fields. Herein, we propose to comprehensively review the recent advances in molecular imprinting including versatile perspectives and applications, concerning novel preparation technologies and strategies of MIT, and highlight the applications of MIPs. The fundamentals of MIPs involving essential elements, preparation procedures and characterization methods are briefly outlined.Smart MIT for MIPs is especially highlighted including ingenious MIT (surface imprinting, nanoimprinting, etc.), special strategies of MIT (dummy imprinting, segment imprinting, etc.) and stimuli-responsive MIT (single/dual/ multi-responsive technology). By virtue of smart MIT, new formatted MIPs gain popularity for versatile applications, including sample pretreatment/chromatographic separation (solid phase extraction, monolithic column chromatography, etc.) and chemical/biological sensing (electrochemical sensing, fluorescence sensing, etc.). Finally, we propose the remaining challenges and future perspectives to accelerate the development of MIT, and to utilize it for further developing versatile MIPs with a wide range of applications (650 references).

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confidence: 99%

Molecular imprinting: perspectives and applications

et al. 2016

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“…The defect and the insulating property of poly(o-PD) during imprinting were further improved by adding 1-dodecanethiol (1-DDT) [109 -110]. However, in one study involving electropolymerization of poly(m-AP), a smaller potential was applied to improve the insulating property of the imprinted polymer instead of adding 1-DDT [123]. Further, a mixture of electropolymerized o-PD and resorcinol was also employed for the detection of 2,4-dichlorophenoxy acetic acid (2,4-D) [111,112].…”

Section: Electrochemical Polymerizationmentioning

confidence: 99%

“…However, the first successful application of electropolymerization method was established by Malitesta et al, who used poly(o-phenylenediamine) (poly(o-PD)) as the polymer matrix for sensing glucose [83]. Several non-cross-linked electrogenerated polymers such as PPy [84 -106], poly(protopothyrin IX) [107], polyphenol [29,108], poly(o-PD) [109 -120], poly-(mercaptobenzimidazole) [121], poly(methylene green) [122], poly(m-aminophenol) (poly(m-AP)) [123], poly(oaminophenol) (poly(oAP)) [124], poly(3,4-ethylenedioxythiophene) (PEDOT) [15, 125 -127] and polyaniline [128] have been prepared on the surface of the electrode. The medium for the preparation of above polymers is water except for poly(protopothyrin IX) [107] as well as poly-(EDOT) [15,125] where a nonaqueous solvent system was used.…”

Section: Electrochemical Polymerizationmentioning

confidence: 99%

“…Barbituric acid was traced in the thiol substrate by spreader bar approach [66]. Analytes such as l-nicotine [42], desmetryn [60,61], phenylalanine [93,108], glucose [109], teagafur [123], pyrene [67], Glu [113] O,O-dimethyl-ahydroxylphenyl phosphonate (DHP) [114], theophylline [122] and human serum albumin [146] were also detected using capacitance sensors.…”

Section: Transducers Based On Signal Produced By Analyte Bindingmentioning

confidence: 99%

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Molecularly Imprinted Electrochemical Sensors

Suryanarayanan

2010

Electroanalysis

220

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In this review, the applications of molecularly imprinted polymer (MIP) materials in the area of electrochemical sensors have been explored. The designs of the MIPs containing different polymers, their preparation and their immobilization on the transducer surface have been discussed. Further, the employment of various transducers containing the MIPs based on different electrochemical techniques for determining analytes has been assessed. In addition, the general protocols for getting the electrochemical signal based on the binding ability of analyte with the MIPs have been given. The review ends with describing scope and limitations of the above electrochemical based MIP sensors.

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“…Two moieties are necessary for the building of such chemically functionalized, conducting polymer-based sensing layer, a molecular sensing unit-functional monomer -, together with a conjugated linker. Electropolymerization has been successfully utilized for the preparation of electroactive and electroinactive polymers on a variety of conductive surfaces including, glassy carbon (Liu et al, 2006), graphite (Ozcan & Sahin, 2007;Weetall & Rogers, 2004) , gold (Feng et al, 2004;Liao et al, 2004), platinum (Xu & Chen, 2000) or indium tin oxide (Gao et al, 2007). An electrochemical sensor based on molecularly imprinted polypyrrole membranes is reported by Xie et al (2010a) for the determination of herbicide 2,4-dichlorophenoxy acetic acid (2,4-D).…”

Section: Molecularly Imprinted Polymer Strategy Applied To the Develomentioning

confidence: 99%