Electrochemical determination of T₂ toxin by graphite/polyacrylonitrile nanofiber electrode

Abstract

Fabricating graphite electrode corrected with nanofiber by electrospinning as a considerable procedure for utilization in the fluid materials, milk, and syrup for detection of T2 mycotoxin is a significant technique. The modern biosensor was fabricated at normal degrees of room and utilized via buffer Britton–Robinson (B‐R) in pH = 5 to refine the chemico‐mechanical specifications. The electrochemical manner of the modified surface was surveyed using the scanning electron microscopy (SEM), cyclic voltammetry (CV), square wave voltammetry (SQWV), electrochemical impedance spectroscopy (EIS), and differential pulse voltammetry (DPV). The corrected electrode displayed a linear reply to T2 toxin in two distinct concentration ranges of 30–100 nM with correlation coefficients of 0.99. The greatest signals in the square wave spectrums for the B‐R buffer created on the uttermost signals of the obtained streams were pH = 5 and 0.5 M of KNO3 for T2 toxin. The modified electrode has a big signal, broad dynamic concentration and high sensitivity and selectivity.

Electrospun Mats Based on PVA/NaDDBS/CNx Nanocomposite for Electrochemical Sensing

“…Since the normalization of the spectra at 1030 cm −1 is used to avoid false interpretation of the data, it seems that the dotted curve is a magnification of the solid curve. These results suggest an interaction between CNx and the polymer matrix with the O-H group and -NH 2 groups involved in the composite [17,25].…”

“…When the control electrode is evaluated (solid line), a classical response is presented in the electrochemical analysis, while the electrode with only PVA and the electrode with the PVA/CNx nanocomposite shows a reversible redox process. But the nanocomposite with PVA/CNx presents two peaks at +0.18 V and −0.05 V, which is a desirable value for electrode conduct for sensing biological analytes and it is a desired behavior for supercapacitors [24,25].…”

Fate of aflatoxins M1 and B1 within the period of production and storage of Tarkhineh: A traditional Persian fermented food

“…In 21st century, food products containing aflatoxins above the maximum residue limit have been the center of debate throughout the world since they endanger human healthy lifestyle and commodities international trade (Amirahmadi et al., 2018 ; Amirkhizi et al., 2015 ; Moradi et al., 2021 ). Thus, the international scientific communities, such as the World Health Organization (WHO), Food and Drug Administration (FDA), the Codex Alimentarius Commission the U.S., and the European Commission (EC), have strived substantially to promote analytical procedures besides more stringent regulatory limitations and legislations to guarantee the food safety (Douny et al., 2013 ; Rastegar et al., 2017 ).…”

Effects of roof angle, inlet gap size and dryer height on temperature and relative humidity in a chimney-dependent solar crop dryer

“…Contamination of mycotoxins in crops could take place anytime in the life of food products, from the farm through harvest to storage [6]. Food products contaminated with aflatoxins have received a lot of attention globally of late, since they have been found to endanger human healthy lifestyle and commodities in international trade [8]. Aflatoxins are heatstable molecules and can therefore not be easily eliminated using different heat treatments, therefore prevention of their formation is essential [9].…”

“…Drying is a very energy intensive process [8], therefore a small increase in its energy efficiency will contribute positively to the industry's sustainable development. There are different drying methods in use today.…”