TEMPO-functionalized zinc phthalocyanine: synthesis, magnetic properties, and its utility for electrochemical sensing of ascorbic acid

Zinc(ii) phthalocyanine (TEMPO-ZnPc), peripherally functionalized with 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) radicals is synthesized and its magneto structural and electrochemical sensing properties are investigated.

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Photoisomerization of electroactive polyimide/multiwalled carbon nanotube composites on the effect of electrochemical sensing for ascorbic acid

Polymer International ◽

10.1002/pi.4797 ◽

2014 ◽

Vol 64 (3) ◽

pp. 373-382 ◽

Cited By ~ 5

Author(s):

Kung-Chin Chang ◽

Chien-Ming Chu ◽

Chi-Hao Chang ◽

Hsiao-Tung Cheng ◽

Sheng-Chieh Hsu ◽

...

Keyword(s):

Ascorbic Acid ◽

Carbon Nanotube ◽

Multiwalled Carbon Nanotube ◽

Electrochemical Sensing ◽

Multiwalled Carbon ◽

Nanotube Composites ◽

Carbon Nanotube Composites

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One-dimensional nitrogen doped porous carbon nano-array arranged by carbon nanotubes for electrochemical sensing ascorbic acid, dopamine and uric acid simultaneously

Nanotechnology ◽

10.1088/1361-6528/abeeb4 ◽

2021 ◽

Vol 32 (25) ◽

pp. 255601

Author(s):

Fang-Hui Wu ◽

Mei-Juan Ren ◽

Miao Wang ◽

Wen-Bin Sun ◽

Kong-Lin Wu ◽

...

Keyword(s):

Carbon Nanotubes ◽

Ascorbic Acid ◽

Uric Acid ◽

Porous Carbon ◽

Electrochemical Sensing ◽

One Dimensional ◽

Nitrogen Doped

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Electrochemical Sensing of Ascorbic Acid, Hydrogen Peroxide and Glucose by Bimetallic (Fe, Ni)−CNTs Composite Modified Electrode

Electroanalysis ◽

10.1002/elan.201800768 ◽

2019 ◽

Vol 31 (5) ◽

pp. 851-857 ◽

Cited By ~ 4

Author(s):

Sayed Tayyab Raza Naqvi ◽

Bahareh Shirinfar ◽

Dilshad Hussain ◽

Saadat Majeed ◽

Muhammad Naeem Ashiq ◽

...

Keyword(s):

Hydrogen Peroxide ◽

Ascorbic Acid ◽

Modified Electrode ◽

Electrochemical Sensing

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Morphology–Dependent Electrochemical Sensing Properties of Iron Oxide–Graphene Oxide Nanohybrids for Dopamine and Uric Acid

Nanomaterials ◽

10.3390/nano9060835 ◽

2019 ◽

Vol 9 (6) ◽

pp. 835 ◽

Cited By ~ 30

Author(s):

Zhaotian Cai ◽

Yabing Ye ◽

Xuan Wan ◽

Jun Liu ◽

Shihui Yang ◽

...

Keyword(s):

Uric Acid ◽

Graphene Oxide ◽

Iron Oxide ◽

Electrocatalytic Activity ◽

Electrochemical Impedance ◽

Simultaneous Detection ◽

Electrochemical Sensing ◽

Electrochemical Performances ◽

Hydrothermal Route ◽

Sensing Properties

Various morphologies of iron oxide nanoparticles (Fe2O3 NPs), including cubic, thorhombic and discal shapes were synthesized by a facile meta-ion mediated hydrothermal route. To further improve the electrochemical sensing properties, discal Fe2O3 NPs with the highest electrocatalytic activity were coupled with graphene oxide (GO) nanosheets. The surface morphology, microstructures and electrochemical properties of the obtained Fe2O3 NPs and Fe2O3/GO nanohybrids were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques. As expected, the electrochemical performances were found to be highly related to morphology. The discal Fe2O3 NPs coupled with GO showed remarkable electrocatalytic activity toward the oxidation of dopamine (DA) and uric acid (UA), due to their excellent synergistic effect. The electrochemical responses of both DA and UA were linear to their concentrations in the ranges of 0.02–10 μM and 10–100 μM, with very low limits of detection (LOD) of 3.2 nM and 2.5 nM for DA and UA, respectively. Moreover, the d-Fe2O3/GO nanohybrids showed good selectivity and reproducibility. The proposed d-Fe2O3/GO/GCE realized the simultaneous detection of DA and UA in human serum and urine samples with satisfactory recoveries.

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