2010
DOI: 10.1002/elan.201000619
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Bioelectroanalytical Determination of Rutin Based on bi‐Enzymatic Sensor Containing Iridium Nanoparticles in Ionic Liquid Phase Supported in Clay

Abstract: A matrix comprising iridium nanoparticles and 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid (Ir-BMI.BF 4 ) supported in montmorillonite (MMT) was obtained through an efficient incorporation process. This modified clay matrix (Ir-BMI.BF 4 -MMT) was used for the immobilization of the enzymes laccase (LAC) and polyphenol oxidase (PPO) and employed in the construction of a bi-enzymatic biosensor for determination of rutin by square-wave voltammetry. Under optimized conditions, the analytical curve sho… Show more

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Cited by 8 publications
(6 citation statements)
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References 53 publications
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“…Enzymes, antibodies, and nucleic acid are generally used as recognition components. Glucose oxidase and glucose dehydrogenase for glucose [ 67 , 68 ], horseradish peroxidase for H 2 O 2 [ 69 ], urease for urea [ 70 ], laccase and polyphenol oxidase for rutin [ 71 ], tryptophan oxidase for tryptophan [ 72 ], etc. act as sensitive recognition elements.…”
Section: General Biosensing Mechanismmentioning
confidence: 99%
“…Enzymes, antibodies, and nucleic acid are generally used as recognition components. Glucose oxidase and glucose dehydrogenase for glucose [ 67 , 68 ], horseradish peroxidase for H 2 O 2 [ 69 ], urease for urea [ 70 ], laccase and polyphenol oxidase for rutin [ 71 ], tryptophan oxidase for tryptophan [ 72 ], etc. act as sensitive recognition elements.…”
Section: General Biosensing Mechanismmentioning
confidence: 99%
“…Among them, the electrochemical method has attracted extensive attention because of its portability of equipment, simple experiment process, low cost, high sensitivity, accuracy, and fast response [ 15 , 16 ]. A variety of materials have been used to construct electrochemical sensors for rutin determination, such as Ir NPs-IL-clay/PPO-Lac [ 17 ], AuNPs-CD-Lac [ 18 ], MWCNTs-IL-Gel [ 19 ], MIPIL/IL-GR [ 20 ], Fe 2.5 Cr 0.2 Ce 0.3 O 4 -rGO [ 21 ], etc.…”
Section: Introductionmentioning
confidence: 99%
“…However, CS has as main disadvantage to act as an insulator, which hinders the charge-transfer process. In order to improve the current signal, the enrichment of CS matrix with metallic nanoparticles has shown interesting results [21,24,29,33]. Graphene shows great promise for the development of electrochemical biosensors due to its excellent mechanical flexibility, fast electron transfer, and good biocompatibility [13,[34][35][36].…”
Section: Introductionmentioning
confidence: 99%
“…Enzyme selection and their sources have a major influence on the biosensor sensitivity [19,22]. The few studies dedicated to bi-enzymatic biosensors [17][18][19][20][21][23][24][25] reported in the last ten years are summarized in Table 1S (Supplementary material). As far as the authors know, there is no publication related to the application of bi-enzymatic biosensors for the quantification of pesticides in food commodities or in other real samples.…”
Section: Introductionmentioning
confidence: 99%
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