No abstract

No abstract

A green method is proposed for synthesizing silver nanoparticles using oak leaf extract as a reductant, capper and stabilizing agent. The characterization of biosynthesized Ag@oak leaf extract (Ag@OLE) was performed using scanning electron microscopy-energy-dispersive X-ray analysis, X-ray diffraction, transmission electron microscopy and UV-visible spectroscopy. The Ag@OLE nanocomposite was applied for immobilizing haemoglobin (Hb) on the surface of glassy carbon electrode (GCE) and its application as a hydrogen peroxide biosensor of was studied. Electrochemical properties of the biosensor were studied using cyclic voltammetry and electrochemical impedance spectroscopy. Direct electrical communication between the redox centre of Hb and GCE was created via conducting network of Hb-Ag@OLE.

No abstract

Saline stress is responsible for significant reductions in the growth of plants, and it globally leads to limitations in the performance of crops, especially in drought-affected areas. However, a better understanding of the mechanisms involved in the resistance of plants to environmental stress can lead to a better plant breeding and selection of cultivars. Mint is one of the most important medicinal plants, and it has important properties for industry, and for the medicinal and pharmacy fields. The effects of salinity on the biochemical and enzymatic properties of 18 ecotypes of mint from six different species, that is,