In this work an enzymatic treatment is proposed as a preparative, cleaning protocol to remove cellulose films from resonators and sensors. Quartz crystal and surface plasmon gold sensors, coated with ultrathin films of cellulose are used in studies of molecular (for example, polymer and surfactant) adsorption. The sensors are usually recycled after removal of the film, with limited success, aft...

aflatoxins are fungal metabolites by strains of aspergillus (a.parasiticus and a.flavus) are produced. the clinical signs of aflatoxin poisoning include surgery autopsy, histological lesions and also create effects on the production of poultry flocks in experimental and natural occurrence have been reported in broiler chickens worldwide. the main signs of aflatoxin poisoning, loss of appetite, ...

In order to investigate the photosynthetic activity of tobacco plants with special reference to the relationship between this activity and the content of cytochrome f, the method of extraction and some properties of this compound was studied. Cytochrome f was extracted from tobacco chloroplasts, using ammoniac ethanol solution containing Triton X-100. Tobacco cytochrome f had properties similar...