A metal-catalyst free, flexible and free-standing chitosan/vacuum-stripped graphene/polypyrrole three dimensional electrode interface for high performance dopamine sensing

Liu, Jing; He, Ziming; Xue, Jingwen; Tan, Timothy Thatt Yang

doi:10.1039/c3tb21355b

Cited by 35 publications

(21 citation statements)

References 27 publications

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“…Comparison of the GCE/ LiMnPO4/f-MWCNTs sensor with other existed electrochemical DA sensors are given in Table 1. [21][22][23][24][25][26][27][28][29][30][31] 3.2.3. Selectivity and real sample analysis of DA sensor.…”

Section: Electrochemical Propertiesmentioning

confidence: 99%

Carbon supported olivine type phosphate framework: a promising electrocatalyst for sensitive detection of dopamine

Nehru

Chen

2018

RSC Adv.

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Section: Electrochemical Propertiesmentioning

confidence: 99%

Carbon supported olivine type phosphate framework: a promising electrocatalyst for sensitive detection of dopamine

Nehru

Chen

2018

RSC Adv.

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“…No redox wave was observed for GPCP in the blank PBS without DA. When the potential of the GPCP electrode was scanned from −200 to 800 mV in the presence of DA, an anodic peak was observed at 265 mV with a current density of 0.9 mA/cm 2 ; this corresponded to the electrooxidation of DA . This anodic peak on GPP arose with as much as half of the current density of GPCP at 410 mV; this indicated a more efficient electrocatalytic ability in GPCP compared to GPP for the oxidation of DA.…”

Section: Resultsmentioning

confidence: 94%

“…To date, several methods have been developed for the quantitative analysis of DA, e.g., chemiluminescence, chromatography, and electrochemistry . The electrochemical determination of DA has focused on conductive substrates modified by graphene (Gr) composite thin films and freestanding GBPs . Compared to thin‐film‐modified conductive electrodes, GBPs are flexible and can be shaped and cut as desired; this allows it to be used conveniently in flexible electronics, in vivo investigations, and lab‐on‐a‐chip productions.…”

Section: Introductionmentioning

confidence: 99%

Surface‐confined electropolymerization of pyronin Y in the graphene composite paper structure for the amperometric determination of dopamine

Kıranşan

Topç̧u

Alanyalıoğlu

2017

J of Applied Polymer Sci

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Surface‐confined electropolymerization allowed us to easily prepare homogeneous polymer composite paper structures. The fabrication of freestanding graphene (Gr)‐based composite electrodes is very important for many modular approaches in electrochemical applications, such as fuel cells, supercapacitors, and sensors. A Gr composite paper electrode doped with polymeric films of pyronin Y was fabricated by two repetitive simple applications: vacuum filtration and surface‐confined electropolymerization. The characterization of this composite paper was done with scanning tunneling microscopy, scanning electron microscopy, X‐ray photoelectron spectroscopy, powder X‐ray diffraction spectroscopy, Raman spectroscopy, UV–visible absorption spectroscopy, four‐point probe conductivity measurement, cyclic voltammetry, and electrochemical impedance spectroscopy. The freestanding composite paper demonstrated good electrocatalytic activity for the electrooxidation of dopamine; this indicated that this composite paper could be used for the amperometric quantification of dopamine in real samples. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45139.

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“…Nanohybrids composed of conducting polymers and graphene or graphene oxide possess the advantages of high conductivity, long‐term stability, excellent electrochemical activity, and biocompatibility. Several polypyrrole‐ and graphene‐based composites have been presented for DA detection . Among them, Wu et al .…”

Section: The Nonenzymatic Electrochemical Biosensorsmentioning

confidence: 99%

Recent Progress on Graphene-based Electrochemical Biosensors

Shen

Wang

et al. 2015

The Chemical Record

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The detailed records and conclusions on the important advancements in graphene-based electrochemical biosensors have been reviewed. Due to their outstanding properties, graphene-based materials have been widely studied for the accurate electrochemical detection of many biomolecules, which is extremely vital to the development of biomedical instruments, clinical diagnosis, and disease treatment. This review discusses the graphene research for the effective immobilization of enzymes, including glucose oxidase, horseradish peroxidase, and hemoglobin, etc., and the accurate detection of biomolecules, including glucose, hydrogen peroxide, dopamine, ascorbic acid, uric acid, nicotinamide adenine dinucleotide, DNA, RNA, and carcinoembryonic antigen, etc. In most of the cases, the graphene-based biosensors exhibited remarkable performance with high sensitivities, wide linear detection ranges, low detection limits, and long-term stabilities.

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A metal-catalyst free, flexible and free-standing chitosan/vacuum-stripped graphene/polypyrrole three dimensional electrode interface for high performance dopamine sensing

Abstract: A free-standing chitosan/vacuum stripped graphene/polypyrrole scaffold with a hierarchical porous structure was demonstrated as a high performance dopamine sensing electrode.

Cited by 35 publications

References 27 publications

Carbon supported olivine type phosphate framework: a promising electrocatalyst for sensitive detection of dopamine

Carbon supported olivine type phosphate framework: a promising electrocatalyst for sensitive detection of dopamine

Surface‐confined electropolymerization of pyronin Y in the graphene composite paper structure for the amperometric determination of dopamine

Recent Progress on Graphene-based Electrochemical Biosensors

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