Detection of Dopamine Based on Tyrosinase-Fe3O4 Nanoparticles-chitosan Nanocomposite Biosensor

Zhang, Xun; Yang, Chen; Xu, Hui; Tan, Yi; Wang, Shengfu

doi:10.5099/aj100300209

Cited by 40 publications

(25 citation statements)

References 20 publications

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“…So it is an important neurotransmitter molecule which is widely distributed in the central nervous system for message transfer. [1][2][3][4][5][6][7][8] It influences a variety of motivated behaviours, neuronal plasticity and plays a critical role in learning and memory. 2 Low levels of DA may cause serious neurological problems such as Parkinson's disease and schizophrenia.…”

Section: Introductionmentioning

confidence: 99%

Carbon-Pt Nanoparticles Modified TiO<SUB>2</SUB> Nanotubes for Simultaneous Detection of Dopamine and Uric Acid

Mahshid

Luo²,

Yang³

et al. 2011

J. Nanosci. Nanotech.

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The present work describes sensing application of modified TiO2 nanotubes having carbon-Pt nanoparticles for simultaneous detection of dopamine and uric acid. The TiO2 nanotubes electrode was prepared using anodizing method, followed by electrodeposition of Pt nanoparticles onto the tubes. Carbon was deposited by decomposition of polyethylene glycol in a tube furnace to improve the conductivity. The C-Pt-TiO2 nanotubes modified electrode was characterized by cyclic voltammetry and differential pulse voltammetry methods. The modified electrode displayed high sensitivity towards the oxidation of dopamine and uric acid in a phosphate buffer solution (pH 7.00). The electro-oxidation currents of dopamine and uric acid were linearly related to the concentration over a wide range of 3.5 x 10(-8) M to 1 x 10(-5) M and 1 x 10(-7) M to 3 x 10(-5) M respectively. The limit of detection was determined as 2 x 10(-10) M for dopamine at signal-to-noise ratio of 3. The interference of uric acid was also investigated. Electro-oxidation currents of dopamine in the presence of fix amount of uric acid represented a linear behaviour towards successive addition of dopamine in range of 1 x 10(-7) M to 1 x 10(-5) M. Furthermore, in a solution containing dopamine, uric acid and ascorbic acid the overlapped oxidation peaks of dopamine and ascorbic acid could be easily separated by using C-Pt-TiO2 nanotubes modified electrode.

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Section: Introductionmentioning

confidence: 99%

Carbon-Pt Nanoparticles Modified TiO<SUB>2</SUB> Nanotubes for Simultaneous Detection of Dopamine and Uric Acid

Mahshid

Luo²,

Yang³

et al. 2011

J. Nanosci. Nanotech.

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“…The great excitement generated by the above glucose and H 2 O 2 sensors was mostly motivated by the tunable physical, morphological and catalytic properties of nanoscale materials. To take advantage of the fascinating properties of nanomaterials, such as larger specific surface areas and the higher density of surface active sites, various methods have been developed by different groups to prepare nanostructured materials to trace other substrates within biofluids such as DNA [8,148,149], ascorbic acid [12,150,151], dopamine [11,152], acetylsalicylic acid (aspirin) [12,153], and paracetamol [9,10]. At the physiological level, ascorbic acid, commonly known as vitamin C, is a compound of great biomedical interest that plays a very important role in regulating metabolism and central nervous system functions.…”

Section: Nanomaterials For the Electroanalysis Of Species Of Biologicmentioning

confidence: 99%

Nanostructured Inorganic Materials at Work in Electrochemical Sensing and Biofuel Cells

et al. 2017

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Abstract:The future of analytical devices, namely (bio)sensors, which are currently impacting our everyday life, relies on several metrics such as low cost, high sensitivity, good selectivity, rapid response, real-time monitoring, high-throughput, easy-to-make and easy-to-handle properties. Fortunately, they can be readily fulfilled by electrochemical methods. For decades, electrochemical sensors and biofuel cells operating in physiological conditions have concerned biomolecular science where enzymes act as biocatalysts. However, immobilizing them on a conducting substrate is tedious and the resulting bioelectrodes suffer from stability. In this contribution, we provide a comprehensive, authoritative, critical, and readable review of general interest that surveys interdisciplinary research involving materials science and (bio)electrocatalysis. Specifically, it recounts recent developments focused on the introduction of nanostructured metallic and carbon-based materials as robust "abiotic catalysts" or scaffolds in bioelectrochemistry to boost and increase the current and readout signals as well as the lifetime. Compared to biocatalysts, abiotic catalysts are in a better position to efficiently cope with fluctuations of temperature and pH since they possess high intrinsic thermal stability, exceptional chemical resistance and long-term stability, already highlighted in classical electrocatalysis. We also diagnosed their intrinsic bottlenecks and highlighted opportunities of unifying the materials science and bioelectrochemistry fields to design hybrid platforms with improved performance.

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“…However, DA also coexists with high concentrations of other biomolecules in biological samples, which can cause poor selectivities and sensitivities in DA determinations [4][5]. To solve these problems, a variety of electrochemical sensors have been prepared and applied for DA determination in biological samples [6][7][8][9][10][11][12]. However, many of these sensors do not meet the growing demand for developing more simple, reliable and efficient sensors with enhanced selectivities and sensitivities for DA detection.…”

Section: Introductionmentioning

confidence: 99%

Three Dimensional Ordered Macroporous Electrochemical Sensor for Dopamine Recognition and Detection

Kan¹,

Li²,

Zhou³

et al. 2012

Am. J. Biomed. Sci.

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A novel kind of electrochemical sensor was developed by combining the molecularly imprinting and silica colloidal crystal template (SCCT) techniques in this work. Pyrrole was electropolymerized onto the SCCT modified glassy carbon electrode (GCE) surface in the presence of dopamine (DA). Then a three dimensional ordered macroporous (3DOM) structured molecularly imprinted polymer (MIPs) electrochemical sensor (3DOM-MIPs/GCE) was obtained by etching of silica microspheres and extracting of DA successively. Scanning electron microscope (SEM) and electrochemical impedance spectroscopy (EIS) were employed to characterize the prepared process of the sensor. Due to the high surface area and thin wall of 3DOM imprinted polymers on the electrode surface, the prepared sensor provided much more efficient imprinted sites and exhibited a fast binding dynamics, good specific adsorption capacity, and high selective recognition to template molecule. And the sensor could also be used for DA determining. Peak current of DA varied linearly with the concentration of DA in the range of 2.0×10 -6 ~ 2.3 ×10 -4 mol L -1 with a detection limit of 9.0 ×10 -7 mol L -1 .

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Detection of Dopamine Based on Tyrosinase-Fe3O4 Nanoparticles-chitosan Nanocomposite Biosensor

Cited by 40 publications

References 20 publications

Carbon-Pt Nanoparticles Modified TiO<SUB>2</SUB> Nanotubes for Simultaneous Detection of Dopamine and Uric Acid

Carbon-Pt Nanoparticles Modified TiO<SUB>2</SUB> Nanotubes for Simultaneous Detection of Dopamine and Uric Acid

Nanostructured Inorganic Materials at Work in Electrochemical Sensing and Biofuel Cells

Three Dimensional Ordered Macroporous Electrochemical Sensor for Dopamine Recognition and Detection

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