Development of a glucose biosensor based on electrodeposited gold nanoparticles–polyvinylpyrrolidone–polyaniline nanocomposites

Miao, Zhuling; Wang, Peiyu; Zhong, AiMing; Yang, Minfeng; Xu, Qin; Hao, Shirong; Hu, Xiaoyun

doi:10.1016/j.jelechem.2015.08.025

Cited by 72 publications

(30 citation statements)

References 49 publications

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“…It is well known that AuNPs bring sensitivity and good reproducibility when used in biosensors –. AuNPs have good electronic properties with higher surface area, and modification of electrode surfaces with these particles provides a suitable microenvironment similar to that of redox protein.…”

Section: Resultsmentioning

confidence: 75%

“…AuNPs have good electronic properties with higher surface area, and modification of electrode surfaces with these particles provides a suitable microenvironment similar to that of redox protein. Hence, it gives the protein molecules more freedom in orientation . As a result, wider linear range is expected here for Graphene‐ Au nanocomposite based biosensor.…”

Section: Resultsmentioning

confidence: 99%

“…When obtained current values were compared, Graphene‐ Pt has the highest current values with better RSD values. Though especially in enzymatic biosensors, AuNP shows remarkable results because it provides higher surface area and acts like a conductive bridge between enzyme active center and electrode surface , in our case, Graphene‐ Pt nanomaterial yields better results. Considering the TEM/SEM and EDS results in Figure , it is obvious that more PtNP is formed onto graphene sheets compared to other metals.…”

Section: Discussionmentioning

confidence: 99%

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Preparation, Characterization and Electrochemical Application of Graphene‐metallic Nanocomposites

Tepeli

Anık

2016

Electroanalysis

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Three different Graphene‐Metallic (Graphene‐Me) nanocomposites – Graphene‐Silver (Graphene‐Ag), Graphene‐Gold (Graphene‐Au) and Graphene‐Platinum (Graphene‐Pt) nanocomposites – were prepared and characterized. The electrochemical performances of these nanocomposites were tested by incorporating them with glassy carbon paste electrode (GCPE) and used them in biofuel cells (BFC) and as amperometric xanthine biosensor transducers. Present work contains the first application of Graphene‐Au and Graphene‐Ag nanocomposite in BFCs and also first application of these Graphene‐Me nanocomposites in xanthine biosensors. Considering BFC, power and current densities were calculated as 2.03 µW cm−2 and 167.46 µA cm−2 for the plain BFC, 3.39 µW cm−2 and 182.53 µA cm−2 for Graphene‐Ag, 4.43 µW cm−2 and 230.15 µA cm−2 for Grapehene‐Au and 6.23 µW cm−2 and 295.23 µA cm−2 for Graphene‐Pt nanocomposite included BFCs respectively. For the amperometric xanthine biosensor linear ranges were obtained in the concentration range between 5 µM and 50 µM with the RSD (n=3 for 30 µM xanthine) value of 4.28 % for plain xanthine biosensor, 3 µM and 50 µM with the RSD (n=3 for 30 µM xanthine) value of 9.37 % for Graphene‐Ag, 5 µM to 20 µM with the RSD (n=3 for 5 µM xanthine) value of 9.00 % and 30 µM to 70 µM with the RSD (n=3 for 30 µM xanthine) value of 8.80 % for Grapehene‐Au and 1 µM and 70 with the the RSD (n=3 for 30 µM xanthine) value of 2.59 % for Grapehene‐Pt based xanthine biosensors respectively.

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Section: Resultsmentioning

confidence: 75%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Preparation, Characterization and Electrochemical Application of Graphene‐metallic Nanocomposites

Tepeli

Anık

2016

Electroanalysis

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“…To evaluate the reproducibility of the Nf/GOx/rGO‐APTES/GC and Nf/rGO‐APTES/GC electrodes, five different electrodes were prepared. The relative standard deviations (RSD) were calculated to be 3.2 % and 4.6 % obtained from the current response to 0.5 and 0.2 mM glucose and hydrogen peroxide, respectively, which was better than that previously reported . In order to determine the repeatability of the Nf/GOx/rGO‐APTES/GC and the Nf/rGO‐APTES/GC electrodes, five different graphs of current responses versus H 2 O 2 and glucose concentration were obtained using the same Nf/GOx/rGO‐APTES/GC and Nf/rGO‐APTES/GC electrodes.…”

Section: Resultsmentioning

confidence: 99%

A Novel Enzymatic Glucose Biosensor and Nonenzymatic Hydrogen Peroxide Sensor Based on (3‐Aminopropyl) Triethoxysilane Functionalized Reduced Graphene Oxide

2017

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In the present study, a novel enzymatic glucose biosensor using glucose oxidase (GOx) immobilized into (3‐aminopropyl) triethoxysilane (APTES) functionalized reduced graphene oxide (rGO‐APTES) and hydrogen peroxide sensor based on rGO‐APTES modified glassy carbon (GC) electrode were fabricated. Nafion (Nf) was used as a protective membrane. For the characterization of the composites, Fourier transform infrared spectroscopy (FTIR), X‐ray powder diffractometer (XRD), and transmission electron microscopy (TEM) were used. The electrochemical properties of the modified electrodes were investigated using electrochemical impedance spectroscopy, cyclic voltammetry, and amperometry. The resulting Nf/rGO‐APTES/GOx/GC and Nf/rGO‐APTES/GC composites showed good electrocatalytical activity toward glucose and H2O2, respectively. The Nf/rGO‐APTES/GC electrode exhibited a linear range of H2O2 concentration from 0.05 to 15.25 mM with a detection limit (LOD) of 0.017 mM and sensitivity of 124.87 μA mM−1 cm−2. The Nf/rGO‐APTES/GOx/GC electrode showed a linear range of glucose from 0.02 to 4.340 mM with a LOD of 9 μM and sensitivity of 75.26 μA mM−1 cm−2. Also, the sensor and biosensor had notable selectivity, repeatability, reproducibility, and storage stability.

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“…In previous studies, the most common glucose biosensors based on GOx and other enzymes have attracted wide interest owing to their high selectivity and biocompatibility. Miao et al [328] fabricated a glucose sensor based on AuNPs/ polyvinylpyrrolidone/PANI nanocomposites for enzyme immobilization and biosensor construction. The sensor exhibited fast amperometric response, good stability and reproducibility, and excellent electrocatalytic activity towards glucose in real serum samples without common interference.…”

Section: Glucose Sensorsmentioning

confidence: 99%

Recent progress on nanostructured conducting polymers and composites: synthesis, application and future aspects

et al. 2018

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Development of a glucose biosensor based on electrodeposited gold nanoparticles–polyvinylpyrrolidone–polyaniline nanocomposites

Cited by 72 publications

References 49 publications

Preparation, Characterization and Electrochemical Application of Graphene‐metallic Nanocomposites

Preparation, Characterization and Electrochemical Application of Graphene‐metallic Nanocomposites

A Novel Enzymatic Glucose Biosensor and Nonenzymatic Hydrogen Peroxide Sensor Based on (3‐Aminopropyl) Triethoxysilane Functionalized Reduced Graphene Oxide

Recent progress on nanostructured conducting polymers and composites: synthesis, application and future aspects

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