A fabricated electro-spun sensor based on Lake Red C pigments doped into PAN (polyacrylonitrile) nano-fibers for electrochemical detection of Aflatoxin B1 in poultry feed and serum samples. Issue 22 (13th October 2015)

• Record Type: Journal Article
• Authors: Babakhanian, Arash; Momeneh, Tahereh; Aberoomand-azar, Parviz; Kaki, Samineh; Torki, Mehran; Hossein Kiaie, Seyed; Sadeghi, Ehsan; Dabirian, Farzad
• Is Part Of: Analyst. Volume 140:Issue 22(2015)
• Page Start: 7761
• Page End: 7767
• Publication Date: 2015-10-13
• Subjects: Chemistry, Analytic -- Periodicals; 543
• DOI: 10.1039/c5an01602a
• Languages: English
• ISSNs: 0003-2654

Abstract

Abstract : The aim of this work was to fabricate a novel nano-fiber modified electrode, involving Lake Red C (LRC) pigments doped into electrospun polyacrylonitrile (PAN) fibrous films. Abstract : The aim of this work was to fabricate a novel nano-fiber modified electrode, involving Lake Red C (LRC) pigments doped into electrospun polyacrylonitrile (PAN) fibrous films. Cyclic voltammetry (CV), scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS) and differential pulse voltammetry (DPV) techniques were used for electrochemical and morphological characterization of the composite fibers. This sensor responds to Aflatoxin B1 (AFB1) over the concentration range of 40–120 nM with high accuracy and precision in analysis. The modified electrode exhibited an excellent electrocatalytic ability ( α = 0.42, log K s = 4.21 s −1, and Γ = 1.49 × 10 −5 mmol cm −2 ) for reduction of AFB1 at the optimum pH of 6 and working potential of −0.75 V ( vs. SCE). The common substances accompanying AFB1 had no serious interferences on the response of the modified electrode to AFB1. The modified electrode indicated reproducible behavior and a high level stability during the experiments, making it particularly suitable for the analytical determination of AFB1 in poultry feed and serum samples.