Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Sonochemical synthesis of ErVO4/MnWO4 heterostructures: Application as a novel nanostructured surface for electrochemical determination of tyrosine in biological samples

Wed Sep 28 20:45:25 2022

(2020) Sonochemical synthesis of ErVO4/MnWO4 heterostructures: Application as a novel nanostructured surface for electrochemical determination of tyrosine in biological samples. Polyhedron. p. 15. ISSN 0277-5387

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Abstract

Present strategy introduces a novel method established for the synthesis of spherical shape ErVO4/MnWO4 heterostructures by a sonochemical method. This heterostructures with optima morphology can be synthesized by changing power and time ultrasound irradiation without any capping agent. BET analysis revealed that ErVO4/MnWO4 prepared in the presence of ultrasonic procedure has 75 times specific surface area as much as that of those was produced in the absence of ultrasonic rays. A variety of analyses (i.e., BET, XRD, TEM, EDS, FT-IR. and SEM) were applied for characterization of the ErVO4/MnWO4. Next, a selective and sensitive nanostructured sensor based on ErVO4/MnWO(4 )nanocomposite modified carbon paste electrode (ErVO4/MnWO4/CPE) was constructed for electrochemical detection of tyrosine (Tyr). The electrochemical characterizations were performed using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and differential pulse voltammetry (DPV). Compared with the unmodified CPE, the oxidation peak current was significantly enhanced for Tyr. The impact of effective parameters on voltammetric response of Tyr was analyzed with design of experiments (DOE) and response surface methodology (RSM). Under the optimized conditions, the oxidation peak current of Tyr was linear over a range of 0.08-400.0 mu M with a detection limit of 7.7 nM. Finally, the usage of the proposed method was confirmed by the recovery tests of Tyr in biological samples. (C) 2019 Published by Elsevier Ltd.

Item Type: Article
Creators:
CreatorsEmail
Khoobi, A.UNSPECIFIED
Shandost-fard, F.UNSPECIFIED
Arbabi, M.UNSPECIFIED
Akbari, M.UNSPECIFIED
Mirzaei, H.UNSPECIFIED
Nejati, M.UNSPECIFIED
Lotfinia, M.UNSPECIFIED
Sobhani-Nasab, A.UNSPECIFIED
Banafshe, H. R.UNSPECIFIED
Keywords: ErVO4/MnWO4 Heterostructures Sonochemical method Tyrosine Biological sensor enhanced photocatalytic performance ternary nano-hybrids graphene oxide organic-dyes nanoparticles degradation tryptophan electrode nanocomposites sensor Chemistry Crystallography
Divisions:
Page Range: p. 15
Journal or Publication Title: Polyhedron
Journal Index: ISI
Volume: 177
Identification Number: https://doi.org/10.1016/j.poly.2019.114302
ISSN: 0277-5387
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/2633

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