CuO thin film based uric acid biosensor with enhanced response characteristics

Jindal, Kajal; Tomar, Monika; Gupta, Vinay

doi:10.1016/j.bios.2012.03.043

Cited by 90 publications

(25 citation statements)

References 36 publications

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“…The I p for DPV of hybridized G-DNA was found higher than that of immobilized probe and increased further with increase in the concentrations of hybridizing ssG-DNA as 18.02 lA (2.5 ng/6 lL, curve b), 19.03 lA (5.0 ng/6 lL, curve c), 21.15 lA (10 ng/6 lL, curve d), 22.51 lA (20 ng/6 lL, curve e) and 23.91 lA (40 ng/6 lL, curve f), (Fig. 3).…”

Section: Differential Pulse Voltammetrymentioning

confidence: 91%

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Carbon-Mercaptooctadecane/Carboxylated Multi-walled Carbon Nanotubes Composite Based Genosensor for Detection of Bacterial Meningitis

et al. 2013

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Human brain bacterial meningitis is a lifethreatening disease mainly caused by Neisseria meningitidis, lead to several complications including damage of brain or even death. The present available methods for diagnosis of meningitis have one or more limitations. A rmpM gene based genosensor was fabricated by immobilizing 5 0 -amino modified 19-mer single stranded DNA probe onto carbonmercaptooctadecane/carboxylated multi-walled carbon nanotubes composite electrode and hybridized with 2.5-40 ng/6 lL of single stranded genomic DNA (ssG-DNA) of N. meningitidis from cerebrospinal fluid (CSF) of the suspected meningitis patients. The electrochemical response was measured by using cyclic voltammetry and differential pulse voltammetry (DPV) using 1 mM methylene blue as redox indicator in 30 min (including a response time of 1 min) at 25°C. The sensitivity of the genosensor was 3.762 (lA/cm 2 )/ng and limit of detection was 2 ng of ssG-DNA of N. meningitidis with DPV. The genosensor has specificity only to N. meningitidis and does not hybridize with the genomic DNA of any other possible pathogen in human CSF. The immobilization of the probe and hybridization of the ssG-DNA were characterized by using electrochemical impedance in presence of 5 mM potassium ferricyanide and scanning electron microscopy. The genosensor loses only 12 % of its original DPV current on storage at 4°C for 6 months. Carbon composite based electrochemical array can be constructed to detect multiple bacterial meningitis suspected patient CSF samples during an outbreak of the disease.

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Section: Differential Pulse Voltammetrymentioning

confidence: 91%

“…The LOD of the carbon composite based genosensor was calculated as 1 ng with CV (Fig. S1a) using the formula LOD = 3(r/S), where, r is standard deviation and S is sensitivity [22,23].…”

Section: Cyclic Voltammetrymentioning

confidence: 99%

Carbon-Mercaptooctadecane/Carboxylated Multi-walled Carbon Nanotubes Composite Based Genosensor for Detection of Bacterial Meningitis

et al. 2013

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“…Copper oxide nanoparticles is a versatile material with wide range of applications, e.g., gas sensors, biosensors, thin film transistors, magnetic storage media, high temperature superconductors, energy storage and spintronics [1][2][3][4][5][6][7]. It is a potential material for photovoltaic devices owing to its favorable band gap for harnessing visible light of the solar spectrum [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Ion implantation induced phase transformation and enhanced crystallinity of as deposited copper oxide thin films by pulsed laser deposition

Bind

Dutta

Sekhon

et al. 2015

Superlattices and Microstructures

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“…Recently, extensive studies have been carried out in transition elements-doped CuO on account of their potential uses in many technological fields such as: spintronics [5][6][7], memory devices [8], optoelectronics [9], gas sensors [10][11][12][13], solar cells [14] and more other applications [15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

First principle calculations with SIC correction of Fe-doped CuO compound

Chafi

Salmani

Bahmad

et al. 2018

Computational Condensed Matter

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In this work, the electronic properties of Fe-doped CuO (Cu 1-x Fe x O) thin films are studied by using a standard density functional theory (DFT) based on the ab-initio approach under the Korringa-Kohn-Rostoker coherent potential approximation (KKR-CPA). This study is carried out in the framework of the general gradient approximation (GGA) and self-interaction-corrected (SIC). The density-of-states (DOSs) in the energy diagram are illustrated and discussed. The computed electronic properties of our compounds confirm the half-metalicity nature of this material (CuO). In addition, the absorption spectra of the studied compound within the Generalized Gradient Approximation GGA, as proposed by Perdew-Burke-Ernzerhof (PBE) and GGA-PBE -SIC approximations are examined. Compared with the pure CuO, the Fermilevels of doped structures are found to move to the higher energy directions. Finally, the effect of Fe-doping method in CuO can transform the material to half-metallic one, with a high wide impurity band in two cases of approximations local density approximation (LDA) and SIC method.

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CuO thin film based uric acid biosensor with enhanced response characteristics

Cited by 90 publications

References 36 publications

Carbon-Mercaptooctadecane/Carboxylated Multi-walled Carbon Nanotubes Composite Based Genosensor for Detection of Bacterial Meningitis

Carbon-Mercaptooctadecane/Carboxylated Multi-walled Carbon Nanotubes Composite Based Genosensor for Detection of Bacterial Meningitis

Ion implantation induced phase transformation and enhanced crystallinity of as deposited copper oxide thin films by pulsed laser deposition

First principle calculations with SIC correction of Fe-doped CuO compound

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