Electrochemical biosensing of carbaryl based on acetylcholinesterase immobilized onto electrochemically inducing porous graphene oxide network

Li, Yanping; Shi, Lingyun; Han, Gaoyi; Xiao, Yaoming; Zhou, Wen

doi:10.1016/j.snb.2016.07.152

Cited by 67 publications

(16 citation statements)

References 41 publications

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“…In addition, multiwall carbon nanotubes/graphene oxide nanoribbons [38] and gold electrodes [48] were applied for immobilization of AChE and used as a biosensor for pesticides. We can observe that the GC/ rGO/AChE biosensor has the lowest LOD for carbaryl, except for the biosensor in the work presented by Li et al [37]. The biosensor showed a very similar LOD to that in the work presented by Qiu et al [17] who developed an AChE-MWCNT/GONR/GCE biosensor.…”

Section: Analytical Curvementioning

confidence: 52%

“…FEG-SEM micrographs for (A) rGO and (B) rGO/AChE. (∼107.5 Ω) with a close to straight tail line [37,38] (curve a). The GC/ GO electrode (curve b) showed an increase in R ct (∼852.53 Ω) due to graphene oxide's insulator property.…”

Section: Resultsmentioning

confidence: 99%

“…Cesarino et al [46,47] used an electropolymerization polyaniline film for AChE immobilization on carbon nanotubes. An AChE-e-pGON/GCE was applied for the detection of carbaryl by Li et al [37]. In addition, multiwall carbon nanotubes/graphene oxide nanoribbons [38] and gold electrodes [48] were applied for immobilization of AChE and used as a biosensor for pesticides.…”

Section: Analytical Curvementioning

confidence: 99%

“…The reproducibility of 2.2% was determined by the standard deviation of 10 sequential voltammograms from five experiments [23]. The favourable electron-transfer kinetics and high sensitivity originate from the good [37] conductivity and large surface area of rGO favouring immobilization of enzymes [49].…”

Section: Analytical Curvementioning

confidence: 99%

See 3 more Smart Citations

Determination of carbamate pesticide in food using a biosensor based on reduced graphene oxide and acetylcholinesterase enzyme

Silva

Vanzela

Defavari

et al. 2018

Sensors and Actuators B: Chemical

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Food safety is a major concern for human health and wellbeing all over the world. A novel and sensitive biosensor based on reduced graphene oxide (rGO) and the enzyme acetylcholinesterase (AChE) was developed and applied for the detection of carbaryl in food samples. The glassy carbon/rGO/AChE biosensor was characterized morphologically and electrochemically using scanning electron microscopy and cyclic voltammetry/electrochemical impedance spectroscopy, respectively. Optimum differential pulse voltammetry conditions led to a nanomolar detection limit, and determination of carbaryl in tomato was achieved.

show abstract

Section: Analytical Curvementioning

confidence: 52%

Section: Resultsmentioning

confidence: 99%

Section: Analytical Curvementioning

confidence: 99%

Section: Analytical Curvementioning

confidence: 99%

See 2 more Smart Citations

Determination of carbamate pesticide in food using a biosensor based on reduced graphene oxide and acetylcholinesterase enzyme

Silva

Vanzela

Defavari

et al. 2018

Sensors and Actuators B: Chemical

View full text Add to dashboard Cite

show abstract

“…Different electroanalytical techniques have been used for pesticides determination, specifically cyclic voltammetry (CV), square wave voltammetry (SWV) and differential pulse voltammetry (DPV) . The electroanalytical determination of carbaryl has been reported in the literature using enzymatic and non enzymatic sensors . However, biosensors need a special care and long time analysis because of the use of enzymes.…”

Section: Introductionmentioning

confidence: 99%

Conducting Polymer/Ionic Liquid Composite Modified Carbon Paste Electrode for the Determination of Carbaryl in Real Samples

et al. 2018

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A new method has been described for carbaryl determination using a simple electrochemical sensor. The unique properties of poly‐pPhenylenediamine and ionic liquid were exploited to fabricate carbon paste electrode modified with composite based on conducting polymer/ionic liquid. Electrode surface characterization was performed by electrochemical methods (cyclic voltammetry and electrochemical impedance spectroscopy) and by scanning electron microscopy. Differential pulse voltammetry was employed for the detection of carbaryl in acetate buffer solution. Different parameters affecting the carbaryl response were optimized such as ionic liquid amounts, cycle number of polymerization and monomer concentration, pH, and accumulation time. Under the optimum experimental conditions, a linear response was obtained between 0.5 and 200 μmol/L, with detection limit of 0.09 μmol/L. The developed sensor offered satisfactory results for carbaryl detection in spring water and fruit samples.

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Trends and Frontiers in Graphene‐Based (Bio)sensors for Pesticides Electroanalysis

Sousa

Ribeiro

Oliveira

et al. 2019

Handbook of Graphene

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Electrochemical biosensing of carbaryl based on acetylcholinesterase immobilized onto electrochemically inducing porous graphene oxide network

Cited by 67 publications

References 41 publications

Determination of carbamate pesticide in food using a biosensor based on reduced graphene oxide and acetylcholinesterase enzyme

Determination of carbamate pesticide in food using a biosensor based on reduced graphene oxide and acetylcholinesterase enzyme

Conducting Polymer/Ionic Liquid Composite Modified Carbon Paste Electrode for the Determination of Carbaryl in Real Samples

Trends and Frontiers in Graphene‐Based (Bio)sensors for Pesticides Electroanalysis

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