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|Título:||Biomimetic norfloxacin sensors made of molecularly-imprinted materials for potentiometric transduction|
|Autor:||Moreira, Felismina T. C.|
Freitas, Victor De
Sales, M. Goreti F.
|Resumo:||A biomimetic sensor for norfloxacin is presented that is based on host-guest interactions and potentiometric transduction. The artificial host was imprinted into polymers made from methacrylic acid and/or 2-vinyl pyridine. The resulting particles were entrapped in a plasticized poly(vinyl chloride) (PVC) matrix. The sensors exhibit near-Nernstian response in steady state evaluations, and detection limits range from 0.40 to 1.0 μg mL−1, respectively, and are independent of pH values at between 2 and 6, and 8 and 11, respectively. Good selectivity was observed over several potential interferents. In flowing media, the sensors exhibit fast response, a sensitivity of 68.2 mV per decade, a linear range from 79 μM to 2.5 mM, a detection limit of 20 μg mL−1, and a stable baseline. The sensors were successfully applied to field monitoring of norfloxacin in fish samples, biological samples, and pharmaceutical products.|
|Versão do Editor:||http://link.springer.com/article/10.1007%2Fs00604-010-0464-4|
|Aparece nas colecções:||ISEP – BioMark – Artigos|
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|ART_FelisminaMoreira5_2011.pdf||248,95 kB||Adobe PDF||Ver/Abrir|
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