Electrochemical Impedance Spectroscopy Based Evaluation of 1,10-Phenanthroline-5,6-dione and Glucose Oxidase Modified Graphite Electrode

Ramanavičius, Arūnas; Genys, Povilas; Ramanavičienė, Almira

doi:10.1016/j.electacta.2014.08.130

Cited by 72 publications

(42 citation statements)

References 22 publications

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“…Electrochemical impedance spectroscopy (EIS) of the 3D NiO/PANI/ZnO heterostructure was examined under various conditions. According to the analysis method of previous literature (Ramanavicius et al, 2014), the presence of 0.5 mM DA caused the resistance of the heterostructure decreased significantly from 774.08 Ω to 666.88 Ω in the high frequency domain as shown in Fig. 2(e).…”

Section: Electrochemical Propertiesmentioning

confidence: 84%

Triggering interface potential barrier: A controllable tuning mechanism for electrochemical detection

Ding

Zhao

et al. 2016

Biosensors and Bioelectronics

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Section: Electrochemical Propertiesmentioning

confidence: 84%

Triggering interface potential barrier: A controllable tuning mechanism for electrochemical detection

Ding

Zhao

et al. 2016

Biosensors and Bioelectronics

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“…The charge-transfer resistance (Rct), which can indicate the electrontransfer kinetics of the redox probe (Fe(CN) 6 3−/4− ) on the electrode interface, could be estimated by the diameter of the semicircular part of EIS curve. 35,36 Fig. 4 shows typical Nuquist plots obtains from six electrodes: bare GCE, PDDA-CNTs/GOX/GCE, (PDDA-CNTs/GOX) 2 /GCE, (PDDA-CNTs/GOX) 3 /GCE, (PDDACNTs/GOX) 4 /GCE, and (PDDA-CNTs/GOX) 4.5 /PDDA-DMAPS-GR/GCE.…”

Section: Resultsmentioning

confidence: 99%

Self-Assembling of Electrochemical Glucose Biosensor with Bacteriostatic Materials via Layer-by-Layer Method

Gao

Luo

Zhang

et al. 2017

J. Electrochem. Soc.

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Poly-diallyl-dimethyl-ammonium chloride (PDDA) solution was used to disperse carbon nanotubes (CNTs) to form a stable PDDACNTs aqueous dispersion. The negatively charged glucose oxidase (GOx) and positively charged PDDA-CNTs composite were used to prepare multilayer biosensing films on glassy carbon electrodes (GCE) via layer-by-layer (LBL) self-assembly technique. The optimum number of layers on GCE was 4. A mixture of 3-dimethyl (methacryloyloxyethyl) ammonium propane sulfonate (DMAPS) and Graphene (GR) was dropped on the multilayer films to prepare a bacteriostatic glucose biosensor. The results show that CNTs could evenly disperse in the PDDA films and the multilayer PDDA-CNTs films can significantly improve the catalytic current response toward glucose (Glu). The biosensor could detect glucose linearly from 16.5 to 214. Electrochemical biosensors which utilize immobilized oxidase [1][2][3][4][5][6] or metal/metal oxide 7-10 to catalyze the oxidation of target analyte, could respond to the changes of concentration of the analyte, and output electrical signal with some disciplines. It can be used to determine biological, clinical, or environmental substances.11-13 Many works have been carried out to achieve high biosensing performance. 14-17However, less research has been done about the bacteriostatic electrochemical glucose biosensor.Antimicrobial or bacteriostatic material has been widely used in industries such as textile, food fermentation and medical device industry. 18,19 In the process of bio-fermentation, the detection of various biochemical parameters (biomass, cell activity, substrate, nutrition, products and metabolites) forms the basis of controlling process of the fermentation. 20 The growth rate of micro-organism can be monitored by the consumption of glucose. Consequently, the abnormal phenomenon of fermentation process can be forecasted by the timely detection of glucose.21 However, bacterium can be easily adsorbed on the surface of the glucose sensors to form a bio-film. The bio-film can block the substrate close to the electrode, and the accuracy of the detection can be affected. 22 In these cases, it is especially necessary to use antimicrobial or bacteriostatic glucose biosensors. But there are very few studies reporting the antimicrobial or bacteriostatic electrochemical glucose biosensor. In this paper, a bacteriostatic film is built on GCE via layer-by-layer (LbL) self-assembly method and used to construct a glucose sensor.It is generally known that chemical compounds contain quaternized ammonium groups and that zwitterionic sulfopropylbetaine shows bacteriostatic or antimicrobial properties, 23 besides the zwitterionic materials show outstanding protein resistance performance. 24,25 A typical sulfobetaine, 3-dimethyl(methacryloyloxyethyl) ammonium propane sulfonate (DMAPS) (Scheme 1), which contains a sulfonate group and a quarternized ammonium separated by an alkyl spacer, has outstanding antimicrobial properties.Layer-by-layer (LbL) self-assembly method is a useful and versatile tech...

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“…EIS was one of the most informative of many recently available electrochemical methods (Ramanavicius et al, 2014). The inset of a equivalent circuit containing the resistance of solution (R s ), the charge transfer resistance (R et ), the Warburg impedance (Z W ), and the double layer capacitance (C dl ) were the same circuit elements as shown in Fig.…”

Section: Ecl Behaviormentioning

confidence: 99%

A label-free electrochemiluminescence immunosensor based on KNbO3–Au nanoparticles@Bi2S3 for the detection of prostate specific antigen

et al. 2015

Biosensors and Bioelectronics

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Electrochemical Impedance Spectroscopy Based Evaluation of 1,10-Phenanthroline-5,6-dione and Glucose Oxidase Modified Graphite Electrode

Cited by 72 publications

References 22 publications

Triggering interface potential barrier: A controllable tuning mechanism for electrochemical detection

Triggering interface potential barrier: A controllable tuning mechanism for electrochemical detection

Self-Assembling of Electrochemical Glucose Biosensor with Bacteriostatic Materials via Layer-by-Layer Method

A label-free electrochemiluminescence immunosensor based on KNbO3–Au nanoparticles@Bi2S3 for the detection of prostate specific antigen

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