A Love Wave (LW) immunosensor was developed for the detection of carbaryl pesticide. The experimental setup consisted on: a compact electronic characterization circuit based on phase and amplitude detection at constant frequency; an automated flow injection system; a thermal control unit; a custom-made flow-through cell; and Quartz /SiO2 LW sensors with a 40 μm wavelength and 120 MHz center fre...

Pseudomonas sp. strain PP4 and C5 utilize phthalate isomers (o-, mand p-) and carbaryl as carbon source, respectively. Degradative pathways were elucidated by isolating and characterizing metabolites, whole-cell O2 uptake and enzyme activity studies. Metabolic studies suggest that phthalate isomer degrading pathways converge at 3,4-dihydroxybenzoic acid. Phthalate dioxygenases responsible for t...

Experiments were conducted to determine the resistance level of different cultivars and study efficacy various synthetic insecticides against red pumpkin beetle (Aulocohphora foveicollis) at New Developmental Malakandir Farm, University Agriculture Peshawar, during 2018. In first experimental trial, data collected on mean population density three (Desi, Super Green Madam-560) cucumber crop. Whi...

Most of the general population is exposed to carbaryl and other contemporary-use insecticides at low levels. Studies of laboratory animals, in addition to limited human data, show an association between carbaryl exposure and decreased semen quality. In the present study we explored whether environmental exposures to 1-naphthol (1N), a metabolite of carbaryl and naphthalene, and 3,5,6-trichloro-...

A hapten-protein conjugate for determining carbaryl using copper nanoparticles was first synthesized in the present work. The were used as electrochemical labels direct solid-phase competitive analysis of residues flour from some crops. Copper stabilized by chitosan and a with UV/VIS - spectroscopy, transmission electron microscopy, dynamic light scattering are characterized. To form recognitio...

In the present work, graphene oxide (GO)–polyvinyl alcohol (PVA) composites thin film has been successfully synthesized and prepared by spin coating techniques. Then, properties morphology of samples were characterized using Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible (UV-Vis), atomic force microscopy (AFM). Experimental FTIR results for GO–PVA demonstrated existence imp...

A liquid chromatographic procedure has been developed for the determination of carbaryl, a phenyl-N-methylcarbamate, and its main metabolite 1-naphthol, using a C18 column (250 mm  ×  4.6 mm) with a micellar mobile phase and fluorescence detection at maximum excitation/emission wavelengths of 225/333 nm, respectively. In the optimization step, surfactants sodium dodecyl sulphate (SDS), Brij-35 ...

Areawide pest management involves the uniform application of a pest control strategy over wide geographic areas. Therefore, these programs are likely to impose intense selective pressures, and the risk for resistance development among pest species for which areawide management programs are implemented is likely to be high. Pilot studies for areawide management of western corn rootworm, Diabroti...