background: according to the recent studies, the antibacterial activities of silver nanoparticles (ag-nps) were studied on gram-positive staphylococcus aureus and gram-negative escherichia coli. in this study antibacterial effect of silver nanoparticles that used for coating textiles, on e.coli and s.aureus was investigated. methods: silver nanoparticles were coated on textile fabric by corona ...

in view of the importance environmental pollution caused by plastic food packaging, in recent years there is a considerable interest in edible films and coating based on polysaccharides, proteins, lipids or combination of them. edible coatings also serve as carriers of food additives such as anti-browning and antimicrobials agents, colorants, flavor, nutrients and spices, so act as active packa...

Chitosan and chitosan modified carboxymethyl were used to enhance performances of paper packaging. 1.0 wt% solutions with concentrations 0.25; 0.5 manually applied on surface using dip coating method. Effects coatings antibacterial properties the investigated. The antimicrobial activity against gram-positive (Staphylococcus aureus) gram-negative bacteria (Escherichia coli) was found be enhanced...

nanostructured alumina thin films were coated on stainless steel by sol-gel dip coating method. in order to prevent crack formation, al2o3 films were kept in a solvent bath immediately after coating to reduce the rate of drying. effects of calcination temperature and withdrawal speed on structural properties were analyzed using xrd and sem. topography and thickness of coatings were analyzed by ...

Biofouling of medical devices involves the formation of a biofilm by bacteria. The infecting bacteria produce extensive exopolysaccharides to form a confluent biofilm. Bacteria within a biofilm can be 1,000 times more resistant to antimicrobials than their planktonic counterparts and less susceptible to host immune systems. According to an estimate by the NIH (USA), about 80% of all human bacte...

Beef is susceptible to rapid spoilage due to its high amount of protein (18.00%) and moisture (72.00%). Food industries have recently found methods to extend beef shelf-life. The influence of beef dipping in hydro-alcoholic extract of sumac (SE) and chitosan (CH) coating incorporated with Zataria multiflora essential oil (ZEO) on microbial, chemical and sensory quality of beef was eval...