New trends in the electrochemical sensing of dopamine

Jackowska, K.; Krysiński, Paweł

doi:10.1007/s00216-012-6578-2

Cited by 407 publications

(278 citation statements)

References 165 publications

(213 reference statements)

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“…Another review presented the electrochemical sensing of dopamine and describes biosensors using graphene microelectrodes and mainly lipid modified [26]. Also, the use graphene microelectrodes for the detection of a wide range of analytes such as microRNA etc.…”

Section: Examples Of Biosensors Based On Lipid Modified Graphene Micrmentioning

confidence: 99%

Biosensors Based on Lipid Modified Graphene Microelectrodes

Nikoleli

Siontorou

Nikolelis

et al. 2017

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Graphene is one of the new materials which has shown a large impact on the electronic industry due to its versatile properties, such as high specific surface area, high electrical conductivity, chemical stability, and large spectrum of electrochemical properties. The graphene material-based electronic industry has provided flexible devices which are inexpensive, simple and low power-consuming sensor tools, therefore opening an outstanding new door in the field of portable electronic devices. All these attractive advantages of graphene give a platform for the development of a new generation of devices in both food and environmental applications. Lipid-based sensors have proven to be a good route to the construction of novel devices with improved characteristics, such as fast response times, increased sensitivity and selectivity, and the possibility of miniaturization for the construction of portable biosensors. Therefore, the incorporation of a lipid substrate on graphene electrodes has provided a route to the construction of a highly sensitive and selective class of biosensors with fast response times and portability of field applications for the rapid detection of toxicants in the environment and food products.

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Section: Examples Of Biosensors Based On Lipid Modified Graphene Micrmentioning

confidence: 99%

Biosensors Based on Lipid Modified Graphene Microelectrodes

Nikoleli

Siontorou

Nikolelis

et al. 2017

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“…114 High levels are also known to be cardiotoxic leading to heart electrophysiology dysfunction. Usually, the concentration of DA in biological systems is in the range of 10 −8 to 10 −6 M. 115 Therefore, the DA membrane 116 (see Figure 3.4) and the buffer solution were prepared using powdered polyvinyl chloride (PVC) (0.18 g) as a plasticized polymer which was dissolved in tetrahydrofuran (6 mL) and mixed with β-cyclodextrin (β-CD) used as ionophore (0.04 g), potassium tetrakis (4-chlorophenyl) borate as ionic additive (0.01 g) and 2-fluorophenyl 2-nitrodiphenyl ether (0.4 g). A stock solution as a buffer containing dopamine hydrochloride (1.89 g) in deionized water (100 mL) was prepared and later diluted with a 100 mM sodium acetate-acetic acid (pH 5.5).…”

Section: Preparation Of Zno Co3o4 and Bivo4 Seed Solutionsmentioning

confidence: 99%

Chemically Modified Metal Oxide Nanostructures Electrodes for Sensing and Energy Conversion

Elhag¹

2017

Linköping Studies in Science and Technology. Dissertations

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“…While changing the dopamine molecule concentration from 1 nM to 10 mM in the buffer solution, the electromotive force is changed; this is shown in Figure 6. Usually, the concentration of DA in biological systems is in the range of 10 −8 to 10 −6 M [40]. As a lower level 10 −8 has not been achieved by using ZnO based sensor that was reported previously [21], it was appealing to seek a more sensitive sensor.…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

Dopamine wide range detection sensor based on modified Co3O4 nanowires electrode

Elhag

Ibupoto

Liu

et al. 2014

Sensors and Actuators B: Chemical

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Ultra-thin cobalt oxide (Co3O4) nanowires grown on gold coated glass substrates by the hydrothermal chemical deposition and have been used as a wide range dopamine potentiometric sensor. An anionic surfactant (sodium dodecylbenzenesulfonate) was used to achieve assisted growth procedure. Moreover, a polymeric membrane containing polyvinyl chloride as plasticized polymer, β-cyclodextrin as ionophore, and potassium tetrakis (4-chlorophenyl) borate as ionic additive were immobilized on the Co3O4 nanostructures through electrostatic adsorption method. X-ray diffraction, x-ray photoelectron spectroscopy, and scanning electron microscopy were used to characterize the electrodes while ultravioletvisible absorption was used to investigate the band gap of the Co3O4 nanostructures. The structural characterization showed a cubic crystalline, pure phase, and nanowires morphology of the Co3O4. However, the morphology is altered when the surfactant concentration has been changed. The Co3O4 chemical modified electrodes were used in potentiometric measurements for dopamine in a 10 −2 M acetic acid/sodium acetate solution having a pH of 5.45. For dopamine range from 10 -9 M to 10 -2 M, the potential response of the sensor electrode was linear with a slope of 52mV/decade. The wide range and high sensitivity of the modified Co3O4 nanowires based sensor for dopamine is attributed to the defects on the metal oxide that is dictated by the used surfactant along with the high surface area-to-volume ratio.

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New trends in the electrochemical sensing of dopamine

Cited by 407 publications

References 165 publications

Biosensors Based on Lipid Modified Graphene Microelectrodes

Biosensors Based on Lipid Modified Graphene Microelectrodes

Chemically Modified Metal Oxide Nanostructures Electrodes for Sensing and Energy Conversion

Dopamine wide range detection sensor based on modified Co3O4 nanowires electrode

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