Biomimetic properties and surface studies of a piezoelectric caffeine sensor based on electrosynthesized polypyrrole

Ebarvia, Benilda S.; Cabanilla, Sharlene; Sevilla, Fortunato

doi:10.1016/j.talanta.2004.10.009

Cited by 73 publications

(39 citation statements)

References 19 publications

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“…This leads to partial degradation of polypyrrole polymeric backbone and introduction of oxygen containing carbonyl and carboxyl groups in to the MIP moiety that determines semi-permeability as well as ability to recognize the imprinted molecule [94]. Sensors based on imprinted PPy for analytes such as amino acids [52, 96 -98], 1-naphthlalenesulfonate [100], caffeine [102,104,106] and bile acids [103] were analyzed using Quartz Crystal Microbalance (QCM) technique. Other molecular species such as glycoproteins [85], serotonin [99], DNA [101] and adenosine triphosphate [105] (amperometry) as well as ascorbic acid [89] and sulfamethoxazole [91] (Differential Pulse Voltammetry) were also traced using imprinted PPy.…”

Section: Electrochemical Polymerizationmentioning

confidence: 99%

Molecularly Imprinted Electrochemical Sensors

Suryanarayanan

2010

Electroanalysis

216

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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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Section: Electrochemical Polymerizationmentioning

confidence: 99%

Molecularly Imprinted Electrochemical Sensors

Suryanarayanan

2010

Electroanalysis

216

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“…The feasibility of integrating electrosynthesized PPy, imprinted with a neutral template (caffeine), with a piezoelectric quartz crystal (PEQC) transducer was explored by Ebarvia and coworkers [34,35]. A similar detection system was employed by Suedee et al for PPy-based sensors imprinted with trichloroacetic acid [36].…”

Section: Molecular Imprinting In Conjugated Polymersmentioning

confidence: 99%

“…Using electropolymerization it is possible to deposit an MIP film at a precise spot on the detector surface and to coat an electrode having a complex geometry with a homogeneous film. Thus MIP films have been used in combination with electrochemical [49], acoustic [34,50], and optical transducers [51]. Other techniques for integration of transducer and polymer include the use of self-assembled monolayers [52] and surface grafting using chemical [53], UV [54], or plasma initiation.…”

Section: Integration Of Mips With the Surface Of Transducersmentioning

confidence: 99%

Imprinted Polymers

Whitcombe

Lakshmi

2010

Electropolymerization

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“…Molecularly imprinted polymers (MIP), pioneered by Wulff and Sarhan in 1972 [4] and much advanced by the Mosbach group [5] and Schweitz [6], have the ability to recognize target molecules specifically and have been used in a variety of molecular recognition-based applications, such as chromatographic separation [7], artificial antibody-mimics [8], solid phase exaction (SPE) [9,10] and biosensors [11]. MIP application promises to be of the greatest significance in the immediate future because many important biomedical substances can be recognized and separated successfully.…”

Section: Introductionmentioning

confidence: 99%