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@article{ART002278253},
author={Navvabeh Salarizadeh and Minoo Sadri and Hassan Hosseini and Reza. H. Sajedi},
title={Synthesis and physicochemical characterization of NixZnx-Fe2O4/MWCNT nanostructures as enzyme mimetics with peroxidase-like catalytic activity},
journal={Carbon Letters},
issn={1976-4251},
year={2017},
volume={24},
number={1},
pages={103-110}

TY - JOUR
AU - Navvabeh Salarizadeh
AU - Minoo Sadri
AU - Hassan Hosseini
AU - Reza. H. Sajedi
TI - Synthesis and physicochemical characterization of NixZnx-Fe2O4/MWCNT nanostructures as enzyme mimetics with peroxidase-like catalytic activity
JO - Carbon Letters
PY - 2017
VL - 24
IS - 1
PB - Korean Carbon Society
SP - 103
EP - 110
SN - 1976-4251
AB - Carbon-based magnetic nanostructures in several instances have resulted in improved physicochemical and catalytic properties when compared to multi-wall carbon nanotubes (MWCNTs) and magnetic nanoparticles. In this study, magnetic MWCNTs with a structure of NixZnxFe2O4/MWCNT as peroxidase mimics were fabricated by the one-pot hydrothermal method. The structure, composition and morphology of the nanocomposites were characterized with X-ray diffraction (XRD), Fourier transform infrared spectroscopy and transmission electron microscopy. The magnetic properties were investigated with a vibrating sample magnetometer. The peroxidase-like catalytic activity of the nanocomposites was investigated by colorimetric and electrochemical tests with 3,3´,5,5´-tetramethylbenzidine (TMB) and H2O2 as the substrates. The results show that the synthesis of the nanocomposites was successfully performed. XRD analysis confirmed the crystalline structures of the NixZnxFe2O4/MWCNT nanohybrids and MWCNTs. The main peaks of the NixZnxFe2O4/MWCNTs crystals were presented. The Ni0.25Zn0.25Fe2O4/MWCNT and Ni0.5Zn0.5Fe2O4/MWCNT nanocatalysts showed nearly similar physicochemical properties, but the Ni0.5Zn0.5Fe2O4/MWCNT nanocatalyst was more appropriate than the Ni0.25Zn0.25Fe2O4/MWCNT nanocatalyst in terms of the magnetic properties and catalytic activity. The optimum peroxidase-like activity of the nanocatalysts was obtained at pH 3.0. The Ni0.5Zn0.5Fe2O4/MWCNT nanocatalyst exhibited a good peroxidase-like activity. These magnetic nanocatalysts can be suitable candidates for future enzyme-based applications such as the detection of glucose and H2O2.
KW - magnetic carbon nanotubes;peroxidase-like activity;characterization;biomimetic catalysts
DO -
UR -
ER -

Navvabeh Salarizadeh, Minoo Sadri, Hassan Hosseini and Reza. H. Sajedi. (2017). Synthesis and physicochemical characterization of NixZnx-Fe2O4/MWCNT nanostructures as enzyme mimetics with peroxidase-like catalytic activity. Carbon Letters, 24(1), 103-110.

Navvabeh Salarizadeh, Minoo Sadri, Hassan Hosseini and Reza. H. Sajedi. 2017, "Synthesis and physicochemical characterization of NixZnx-Fe2O4/MWCNT nanostructures as enzyme mimetics with peroxidase-like catalytic activity", Carbon Letters, vol.24, no.1 pp.103-110.

Navvabeh Salarizadeh, Minoo Sadri, Hassan Hosseini, Reza. H. Sajedi "Synthesis and physicochemical characterization of NixZnx-Fe2O4/MWCNT nanostructures as enzyme mimetics with peroxidase-like catalytic activity" Carbon Letters 24.1 pp.103-110 (2017) : 103.

Navvabeh Salarizadeh, Minoo Sadri, Hassan Hosseini, Reza. H. Sajedi. Synthesis and physicochemical characterization of NixZnx-Fe2O4/MWCNT nanostructures as enzyme mimetics with peroxidase-like catalytic activity. 2017; 24(1), 103-110.

Navvabeh Salarizadeh, Minoo Sadri, Hassan Hosseini and Reza. H. Sajedi. "Synthesis and physicochemical characterization of NixZnx-Fe2O4/MWCNT nanostructures as enzyme mimetics with peroxidase-like catalytic activity" Carbon Letters 24, no.1 (2017) : 103-110.

Navvabeh Salarizadeh; Minoo Sadri; Hassan Hosseini; Reza. H. Sajedi. Synthesis and physicochemical characterization of NixZnx-Fe2O4/MWCNT nanostructures as enzyme mimetics with peroxidase-like catalytic activity. Carbon Letters, 24(1), 103-110.

Navvabeh Salarizadeh; Minoo Sadri; Hassan Hosseini; Reza. H. Sajedi. Synthesis and physicochemical characterization of NixZnx-Fe2O4/MWCNT nanostructures as enzyme mimetics with peroxidase-like catalytic activity. Carbon Letters. 2017; 24(1) 103-110.

Navvabeh Salarizadeh, Minoo Sadri, Hassan Hosseini, Reza. H. Sajedi. Synthesis and physicochemical characterization of NixZnx-Fe2O4/MWCNT nanostructures as enzyme mimetics with peroxidase-like catalytic activity. 2017; 24(1), 103-110.

Navvabeh Salarizadeh, Minoo Sadri, Hassan Hosseini and Reza. H. Sajedi. "Synthesis and physicochemical characterization of NixZnx-Fe2O4/MWCNT nanostructures as enzyme mimetics with peroxidase-like catalytic activity" Carbon Letters 24, no.1 (2017) : 103-110.