Amperometric glucose sensing with polyaniline/poly(acrylic acid) composite film bearing covalently-immobilized glucose oxidase: A novel method combining enzymatic glucose oxidation and cathodic O2 reduction

Homma, Toshimasa; Sumita, Daiki; Kondo, Mizuki; Kubo, Takashi; Shimomura, Masato

doi:10.1016/j.jelechem.2013.11.009

Cited by 30 publications

(13 citation statements)

References 27 publications

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“…Consequently, the anodic currents decrease accordingly with the polymerization of o‐Phenylenediamine during subsequent CV scans. This tendency has a certain affinity with the previous reports (Gao, Qu, Li, Shrestha, & Song, ; Homma, Sumita, Kondo, Kuwahara, & Shimomura, ). Figure b represents the progress on electropolymerization process to prepare GOx/PB/Au NPs/TiO 2 NTs electrode by sweep rate of 50 mV/s for 1–10 cycles.…”

Section: Resultssupporting

confidence: 85%

A novel antimicrobial electrochemical glucose biosensor based on silver–Prussian blue‐modified TiO₂ nanotube arrays

et al. 2020

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Glucose biosensors play an important role in the diagnosis and continued monitoring of the disease, diabetes mellitus. This report proposes the development of a novel enzymatic electrochemical glucose biosensor based on TiO2 nanotubes modified by AgO and Prussian blue (PB) nanoparticles (NPs), which has an additional advantage of possessing antimicrobial properties for implantable biosensor applications. In this study, we developed two high‐performance glucose biosensors based on the immobilization of glucose oxidase (GOx) onto Prussian blue (PB)‐modified TiO2 nanotube arrays functionalized by Au and AgO NPs. AgO‐deposited TiO2 nanotubes were synthesized through an electrochemical anodization process followed by Ag electroplating process in the same electrolyte. Deposition of PB particles was performed from an acidic ferricyanide solution. The surface morphology and elemental composition of the two fabricated biosensors were investigated by scanning electron microscopy (SEM) and energy‐dispersive X‐ray spectroscopy (EDS) which indicate the successful deposition of Au and AgO nanoparticles as well as PB nanocrystals. Cyclic voltammetry and chronoamperometry were used to investigate the performance of the modified electrochemical biosensors. The results show that the developed electrochemical biosensors display excellent properties in terms of electron transmission, low detection limit and high stability for the determination of glucose. Under the optimized conditions, the amperometric response shows a linear dependence on the glucose concentration to a detection limit down to 4.91 µM with sensitivity of 185.1 mA M−1 cm−2 in Au‐modified biosensor and detection limit of 58.7 µM with 29.1 mA M−1 cm−2 sensitivity in AgO‐modified biosensor.

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Section: Resultssupporting

confidence: 85%

A novel antimicrobial electrochemical glucose biosensor based on silver–Prussian blue‐modified TiO₂ nanotube arrays

et al. 2020

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“…The sensitivity of the complex PANI-Carr electrodes is the highest, 0.86 mA/ (mM cm 2 ), that of the blend PANI-Carr is 0.34 mA/(mM cm 2 ), and that of PANI is lowest, 0.031 mA/(mM cm 2 ). It is noted here that although there are much higher sensitivity based on PANI complex electrode been reported [31][32][33], they are established on metal electrode such as Pt or Au, while ours on carbon. We are not merely pursuing an excellent performance of the biosensor, but use the sensing parameter to understand the structural and electrical conductive difference between the interpolymer complex and blend polymer.…”

Section: Resultscontrasting

confidence: 47%

Microfibers from interpolymer complexation of κ-carrageenan and oligomers of polyaniline for glucose detection

et al. 2015

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“…GOx is one of the famous enzymes for detection of glucose in solutions which can selectively catalyze the oxidation of glucose to gluconolactone which is hydrolyzed to gluconic acid and produces H 2 O 2 in the presence of oxygen . This enzyme is popular because it is stable, cheap and has practical uses . Unlike the mentioned advantages, the fabricated sensors based on GOx have some limitations such as their poor electrical communication between the active site of the enzyme and the electrode .…”

Section: Introductionmentioning

confidence: 99%

An Electrochemical Sensor Based on Ni(II) Complex and Multi Wall Carbon Nano Tubes Platform for Determination of Glucose in Real Samples

et al. 2016

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In the present paper, a stable and selective non‐enzymatic sensor is reported for determination of glucose (Glc) by using a carbon paste electrode modified with multiwall carbon nanotubes and Ni(II)‐SHP complex as modifier in an alkaline solution. This modified electrode showed impressive activity for oxidation of glucose in NaOH solution. Herein, Ni(II)‐SHP acts as a suitable platform for oxidation of glucose to glucolactone on the surface of the modified electrode by decreasing the overpotential and increasing in the current of analyte. Under the optimum conditions, the rate constant and electron transfer coefficient between electrode and modifier, were calculated to be 1.04 s−1 and 0.64, respectively. The anodic peak currents indicated a linear dependency with the square root of scan rate and this behavior is the characteristic of a diffusion controlled process. So, the diffusion coefficient of glucose was found to be 3.12×10−6 cm2 s−1 due to the used number of transferred electron of 1. The obtained results revealed two linear ranges (5 to 190.0 μM (R2=0.997), 210.0 to 700.0 μM (R2=0.999)) and the detection limit of 1.3 μM for glucose was calculated by using differential pulse voltammetry (DPV) method. Also, the designed sensor was used for determination of glucose in the blood serum and urine samples. Some other advantages of Ni(II)‐SHP/CNT/CPE sensor are remarkable reproducibility, stability and selectivity which can be related to using nanomaterial of carbon nanotubes due to enhancement of electrode surface area.

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Amperometric glucose sensing with polyaniline/poly(acrylic acid) composite film bearing covalently-immobilized glucose oxidase: A novel method combining enzymatic glucose oxidation and cathodic O2 reduction

Cited by 30 publications

References 27 publications

A novel antimicrobial electrochemical glucose biosensor based on silver–Prussian blue‐modified TiO₂ nanotube arrays

A novel antimicrobial electrochemical glucose biosensor based on silver–Prussian blue‐modified TiO₂ nanotube arrays

Microfibers from interpolymer complexation of κ-carrageenan and oligomers of polyaniline for glucose detection

An Electrochemical Sensor Based on Ni(II) Complex and Multi Wall Carbon Nano Tubes Platform for Determination of Glucose in Real Samples

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Amperometric glucose sensing with polyaniline/poly(acrylic acid) composite film bearing covalently-immobilized glucose oxidase: A novel method combining enzymatic glucose oxidation and cathodic O2 reduction

Cited by 30 publications

References 27 publications

A novel antimicrobial electrochemical glucose biosensor based on silver–Prussian blue‐modified TiO2 nanotube arrays

A novel antimicrobial electrochemical glucose biosensor based on silver–Prussian blue‐modified TiO2 nanotube arrays

Microfibers from interpolymer complexation of κ-carrageenan and oligomers of polyaniline for glucose detection

An Electrochemical Sensor Based on Ni(II) Complex and Multi Wall Carbon Nano Tubes Platform for Determination of Glucose in Real Samples

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A novel antimicrobial electrochemical glucose biosensor based on silver–Prussian blue‐modified TiO₂ nanotube arrays

A novel antimicrobial electrochemical glucose biosensor based on silver–Prussian blue‐modified TiO₂ nanotube arrays