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Synthesis and characterization of manganese diselenide nanoparticles (MnSeNPs): Determination of capsaicin by using MnSeNP-modified glassy carbon electrode

A new type of manganese diselenide nanoparticles (MnSeNPs) was synthesized by using a hydrothermal method. Their surface morphology, crystallinity and elemental distribution were characterized by using transmission electron microscopy, X-ray diffraction, energy dispersive X-ray spectroscopy, and X-r... Full description

Journal Title: Microchimica Acta 2018, Vol.185(6), pp.1-9
Main Author: Sukanya, Ramaraj
Other Authors: Sakthivel, Mani , Chen, Shen-Ming , Chen, Tse-Wei , Al-Hemaid, Fahad , Ajmal Ali, M. , Elshikh, Mohamed
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0026-3672 ; E-ISSN: 1436-5073 ; DOI: 10.1007/s00604-018-2851-1
Link: http://dx.doi.org/10.1007/s00604-018-2851-1
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recordid: springer_jour10.1007/s00604-018-2851-1
title: Synthesis and characterization of manganese diselenide nanoparticles (MnSeNPs): Determination of capsaicin by using MnSeNP-modified glassy carbon electrode
format: Article
creator:
  • Sukanya, Ramaraj
  • Sakthivel, Mani
  • Chen, Shen-Ming
  • Chen, Tse-Wei
  • Al-Hemaid, Fahad
  • Ajmal Ali, M.
  • Elshikh, Mohamed
subjects:
  • Manganese diselenide
  • Hydrothermal synthesis
  • Electrochemical sensor
  • Capsaicin
  • Metal chalcogenides
  • Pepper sample
  • Capsaicinoid
ispartof: Microchimica Acta, 2018, Vol.185(6), pp.1-9
description: A new type of manganese diselenide nanoparticles (MnSeNPs) was synthesized by using a hydrothermal method. Their surface morphology, crystallinity and elemental distribution were characterized by using transmission electron microscopy, X-ray diffraction, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy which scrutinize the formation of the NPs. The NPs were coated on a glassy carbon electrode (GCE), and electrochemical impedance spectroscopy, cyclic voltammetry and differential pulse voltammetry were applied to study the electroanalytical properties towards the oxidation of the food additive capsaicin. The modified GCE displays lower charge transfer resistance ( R ct  = 29.52 Ω), a larger active surface area (0.089 cm 2 /g, and more efficient electrochemical oxidation of capsaicin compared to a MnS 2 /GCE and a bare GCE. The oxidation peak potential is 0.43 V (vs. Ag/AgCl) which is lower than that of previously reported GCEs. The sensor has a detection limit as low as 0.05 μM and an electrochemical sensitivity of 2.41 μA μM −1  cm −2 . The method was applied to the determination of capsaicin in pepper samples. Graphical abstract Electrochemical determination of capsaicin in pepper extract by using MnSeNPs modified electrode.
language: eng
source:
identifier: ISSN: 0026-3672 ; E-ISSN: 1436-5073 ; DOI: 10.1007/s00604-018-2851-1
fulltext: fulltext
issn:
  • 1436-5073
  • 14365073
  • 0026-3672
  • 00263672
url: Link


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titleSynthesis and characterization of manganese diselenide nanoparticles (MnSeNPs): Determination of capsaicin by using MnSeNP-modified glassy carbon electrode
creatorSukanya, Ramaraj ; Sakthivel, Mani ; Chen, Shen-Ming ; Chen, Tse-Wei ; Al-Hemaid, Fahad ; Ajmal Ali, M. ; Elshikh, Mohamed
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subjectManganese diselenide ; Hydrothermal synthesis ; Electrochemical sensor ; Capsaicin ; Metal chalcogenides ; Pepper sample ; Capsaicinoid
descriptionA new type of manganese diselenide nanoparticles (MnSeNPs) was synthesized by using a hydrothermal method. Their surface morphology, crystallinity and elemental distribution were characterized by using transmission electron microscopy, X-ray diffraction, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy which scrutinize the formation of the NPs. The NPs were coated on a glassy carbon electrode (GCE), and electrochemical impedance spectroscopy, cyclic voltammetry and differential pulse voltammetry were applied to study the electroanalytical properties towards the oxidation of the food additive capsaicin. The modified GCE displays lower charge transfer resistance ( R ct  = 29.52 Ω), a larger active surface area (0.089 cm 2 /g, and more efficient electrochemical oxidation of capsaicin compared to a MnS 2 /GCE and a bare GCE. The oxidation peak potential is 0.43 V (vs. Ag/AgCl) which is lower than that of previously reported GCEs. The sensor has a detection limit as low as 0.05 μM and an electrochemical sensitivity of 2.41 μA μM −1  cm −2 . The method was applied to the determination of capsaicin in pepper samples. Graphical abstract Electrochemical determination of capsaicin in pepper extract by using MnSeNPs modified electrode.
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titleSynthesis and characterization of manganese diselenide nanoparticles (MnSeNPs): Determination of capsaicin by using MnSeNP-modified glassy carbon electrode
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abstractA new type of manganese diselenide nanoparticles (MnSeNPs) was synthesized by using a hydrothermal method. Their surface morphology, crystallinity and elemental distribution were characterized by using transmission electron microscopy, X-ray diffraction, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy which scrutinize the formation of the NPs. The NPs were coated on a glassy carbon electrode (GCE), and electrochemical impedance spectroscopy, cyclic voltammetry and differential pulse voltammetry were applied to study the electroanalytical properties towards the oxidation of the food additive capsaicin. The modified GCE displays lower charge transfer resistance ( R ct  = 29.52 Ω), a larger active surface area (0.089 cm 2 /g, and more efficient electrochemical oxidation of capsaicin compared to a MnS 2 /GCE and a bare GCE. The oxidation peak potential is 0.43 V (vs. Ag/AgCl) which is lower than that of previously reported GCEs. The sensor has a detection limit as low as 0.05 μM and an electrochemical sensitivity of 2.41 μA μM −1  cm −2 . The method was applied to the determination of capsaicin in pepper samples. Graphical abstract Electrochemical determination of capsaicin in pepper extract by using MnSeNPs modified electrode.
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