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 ...

Fundamental research in recent years has allowed us to reassess the molecular and cellular mechanisms of cardiac ontogenesis its repair after damage. The epicardium, outer, tightly adjoining layer wall formed by epicardial mesothelial cells, collagen elastic fibers, gained special relevance as an important participant reparative processes. Better insight into poorly understood function is challe...

Background: Alteration in polymorphism of tissue collagens has been reported in association with some genetic and metabolic disorders. These alterations can be estimated quantitatively by measuring alpha-chain monomers derived from the polymeric form of collagens following treatment with sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). We studied the rate of placental colla...

Porous multiwell plate inserts are widely used in biomedical research to study transport processes or culture cells/tissues at the air–liquid interface. These made of rigid materials and under static conditions, which unrepresentative biological microenvironments. Here, we present FleXert, a soft, actuatable cell insert that interfaces with six-well plates. It is polydimethylsiloxane (PDMS) com...

Nonwoven fabric with cellulosic base has many Features ability to absorb biological fluids and can easily adapt for different types locations of wounds, which made it common unique in surgical dressing. The study aimed To design samples one layer two layers nonwoven fabrics the inner deep endoscopic wound dressings control fluid leakage. 100% cotton, viscose, viscose/polyester (70:30) % were us...

Researchers have widely agreed that the broad spectrum antibacterial activity of silver nanoparticles (AgNPs) can be predominantly ascribed to the action of Ag+. This study marks the first report detailing the rapid and highly efficient synergistic bacteria killing of AgNPs, which is achieved by inspiring AgNPs' strong photocatalytic capability to rapidly produce radical oxygen species using 66...

the aim of this work is to synthesize and investigate the performance of yttria-doped zirconia solgelcoatings in the chemical corrosion prevention of zircaloy-4 (zirconium alloy) in a 1 n h2so4environment. the influence of four different molar ratios of water to alkoxide, namely 1, 4, 12, and20, on the coating quality and its corrosion prevention performance was investigated. differentialtherma...

collagen, which is widely distributed in pluricellular animals, is one of the most fundamental constituents of the extracellular matrix, and plays mechanically or physiologically important roles in their bodies. in this study, the biochemical and physical characteristics of pepsin-solubilized collagen from the mantle of yesso scallop (ympc), a by-product of processing, was determined. electroph...