2005
DOI: 10.1016/j.talanta.2004.07.005
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Multienzyme electrochemical array sensor for determination of phenols and pesticides

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Cited by 60 publications
(22 citation statements)
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“…6) Depending upon the amount of laccase and reaction time, concentrations of p-cresol lower than 10M were potentially detectable. Our data are in agreement with p-cresol detection limits of 15ng [19], 21-24ppm [20], and 1.0-5.3 M [21] reported previously. Our values for p-cresol detection are also within an order of magnitude sensitivity reported earlier based upon the direct fluorescence emission from p-cresol [22][23][24].…”
Section: Discussionsupporting
confidence: 93%
“…6) Depending upon the amount of laccase and reaction time, concentrations of p-cresol lower than 10M were potentially detectable. Our data are in agreement with p-cresol detection limits of 15ng [19], 21-24ppm [20], and 1.0-5.3 M [21] reported previously. Our values for p-cresol detection are also within an order of magnitude sensitivity reported earlier based upon the direct fluorescence emission from p-cresol [22][23][24].…”
Section: Discussionsupporting
confidence: 93%
“…Estes eletrodos, chamados de eletrodos quimicamente modificados, são mais seletivos e mais sensíveis, pois a modificação possibilita controlar a natureza físico-química da interface eletrodo-solução como uma forma de alterar a reatividade e seletividade do eletrodo base favorecendo, assim, o desenvolvimento de eletrodos para diferentes aplicações analíticas 40 . As modificações de superfícies eletródicas são importantes, uma vez que são específicas a um determinado tipo de analito e promovem um alto grau de seletividade, possibilitando o desenvolvimento de sensores de fácil manipulação e construção, baixo custo, potencial de miniaturização e detecção rápida 41 . Desta forma, a utilização de agentes modificantes representa uma alternativa à substituição de eletrodos de mercúrio e metais inertes.…”
Section: Técnicas Eletroanalíticasunclassified
“…The analytical ranges of Cd(II), Cu(II), and Hg(II) were between 10 nmol/L and 100 mmol/L. When real samples were spiked with heavy metals, the array biosensor also exhibited potential effectiveness in screening enzyme inhibitors.` Solna et al [48] use screen-printed four-electrode system as the amperometric transducer for determination of phenols and pesticides using immobilized tyrosinase, peroxidase, acetylcholinesterase and butyrylcholinesterase. Acetylthiocholine chloride was chosen as substrate for cholinesterases to measure inhibition by pesticides, hydrogen peroxide served as co-substrate for peroxidase to measure phenols.…”
Section: Enzyme Based Biosensor Arraymentioning
confidence: 99%