Carbon Nanohorn-modified Carbon Fiber Microelectrodes for Dopamine Detection
نویسندگان
چکیده
منابع مشابه
Pedot/go Carbon Fiber Microelectrodes for Dopamine Sensing
INTRODUCTION Dopamine (DA) sensing has become an important emerging technology due to the regulatory role of DA signaling in neurological diseases such as schizophrenia, addiction and Parkinson’s. However, due to its low concentration in the CNS relative to coexisting species such as ascorbic acid (AA), DA can be difficult to detect accurately. When using traditional electrodes, the recorded ox...
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High-repetition fast-scan cyclic voltammetry and chronoamperometry were used to quantify and characterize the kinetics of dopamine and dopamine-o-quinone adsorption and desorption at carbon-fiber microelectrodes. A flow injection analysis system was used for the precise introduction and removal of a bolus of electroactive substance on a sub-second time scale to the disk-shaped surface of a micr...
متن کاملCarbon Fiber-based Microelectrodes and Microbiosensors
The chemically relatively inert carbon fiber (CF) has outstanding mechanical and electrical properties and provides an excellent base electrode for electrophysiological, electrochemical and biosensor applications on a micrometer or perhaps even on a submicrometer scale. CF microelectrodes have been used to record neuronal action potentials (spikes) since 1979 (Armstrong-James & Millar, 1979). T...
متن کاملCarbon fiber on polyimide ultra-microelectrodes.
OBJECTIVE Most preparations for making neural recordings degrade over time and eventually fail due to insertion trauma and reactive tissue response. The magnitudes of these responses are thought to be related to the electrode size (specifically, the cross-sectional area), the relative stiffness of the electrode, and the degree of tissue tolerance for the material. Flexible carbon fiber ultra-mi...
متن کاملSimultaneous electrochemical determination of uric acid, dopamine, and ascorbic acid at single-walled carbon nanohorn modified glassy carbon electrode.
Single-walled carbon nanohorn modified glassy carbon electrode (SWCNH-modified GCE) was first employed for the simultaneous determination of uric acid (UA), dopamine (DA), and ascorbic acid (AA). The SWCNH-modified GCE displayed excellent electrochemical catalytic activities. The oxidation overpotentials of UA, DA, and AA decrease significantly and their oxidation peak currents increase dramati...
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ژورنال
عنوان ژورنال: Electroanalysis
سال: 2018
ISSN: 1040-0397
DOI: 10.1002/elan.201700667