Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/6768
Título: Biomimetic Sensor Potentiometric System for Doxycycline Antibiotic Using a Molecularly Imprinted Polymer as an Artificial Recognition Element
Autor: Kamel, Ayman H.
Moreira, Felismina T. C.
Sales, M. Goreti F.
Data: 2011
Editora: American Scientific Publishers
Resumo: Molecular imprinting is a useful technique for the preparation of functional materials with molecular recognition properties. A Biomimetic Sensor Potentiometric System was developed for assessment of doxycycline (DOX) antibiotic. The molecularly imprinted polymer (MIP) was synthesized by using doxycycline as a template molecule, methacrylic acid (MAA) and/or acrylamide (AA) as a functional monomer and ethylene glycol dimethacrylat (EGDMA) as a cross-linking agent. The sensing elements were fabricated by the inclusion of DOX imprinted polymers in polyvinyl chloride (PVC) matrix. The sensors showed a high selectivity and a sensitive response to the template in aqueous system. Electrochemical evaluation of these sensors under static (batch) mode of operation reveals near-Nernstian response. MIP/MAA membrane sensor was incorporated in flow-through cells and used as detectors for flow injection analysis (FIA) of DOX. The method has the requisite accuracy, sensitivity and precision to assay DOX in tablets and biological fluids.
URI: http://hdl.handle.net/10400.22/6768
DOI: http://dx.doi.org/10.1166/sl.2011.1707
Versão do Editor: http://www.ingentaconnect.com/content/asp/senlet/2011/00000009/00000005/art00011?token=005a196ddea0693d07e442f2067217d766a445049796c2a406a687627504541676249266d656c8e26a1efe040d
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