Synergies of WO and CoO intercalated ball milling exfoliated graphene 3D helix electrocatalyst: A highly sensitive electrochemical detection of mesotrione herbicide in vegetable samples.

In the booming global population, monitoring of mesotrione (MTN) like agricultural pollutants is crucial for human safety. Herein, the research reports the synthesis of tungsten trioxide (WO) and cobalt oxide (CoO) nanostructures intercalated ball milling exfoliated graphene (WO/CoO/graphene) 3D helix electrocatalyst for the electrochemical detection of MTN herbicide. The proposed WO/CoO/graphene sensor material achieved a wide range of MTN detection from 0.

Sparked ZnO nanoparticles-based electrochemical sensor for onsite determination of glyphosate residues.

Glyphosate (N-(phosphonomethyl)glycine) is well known nonselective and broad-spectrum herbicide that has been extensively used in agricultural areas around the world to increase agricultural productivity. However, the utilization of glyphosate can cause environmental contamination and health problems. Therefore, the detection of glyphosate with a fast, low-cost, and portable sensor is still important.

Dual functions of alternating current electroluminescent device for light emission and humidity detection.

Alternating current electroluminescent (AC-EL) device can be considered as a potential candidate for next generation of multifunctional light-emitting sources. In this work, we present a new design of AC-EL device with inclusion of a silver oxide humidity-sensing layer instead of an insulating buffer layer for humidity detection. The ZnS:Cu, Cl and ZnS:Ag(Zn,Cd)S:Ag phosphors were used as an emissive layer prepared by screen printing method.

Electrochemical paraquat sensor based on lead oxide nanoparticles.

1,1-Dimethyl-4,4-bipyridinium dichloride known as paraquat is a popular well-known herbicide that is widely used in agriculture around the world. However, paraquat is a highly toxic chemical causing damage to vital organs including the respiratory system, liver, heart, and kidneys and death. Therefore, detection of paraquat is still necessary to protect life and the environment.

High-performance resistive humidity sensor based on Ag nanoparticles decorated with graphene quantum dots.

In this work, we present a low-cost, fast and simple fabrication of resistive-type humidity sensors based on the graphene quantum dots (GQDs) and silver nanoparticles (AgNPs) nanocomposites. The GQDs and AgNPs were synthesized by hydrothermal method and green reducing agent route, respectively. UV-Vis spectrophotometer, X-ray photoelectron spectroscopy and field-emission transmission electron microscopy were used to characterize quality, chemical bonding states and morphology of the nanocomposite materials and confirm the successful formation of core/shell-like AgNPs/GQDs structure.