Abstract In this study, an in situ three-point bending test was carried out to study the mechanical properties and cracking behavior of Cr-coated Zr-4 alloy considering effect pre-oxidation. The results showed that high temperature pre-oxidation led formation intermetallic ZrCr2 at coating/substrate interface α-Zr(O) layer beneath interface. During test, Cr coating substrate good plastic deform...

Background and study aims: Biliary stent dysfunction is mainly caused by biliary sludge that forms as a result of bacterial adherence and subsequent biofilm formation on the inner surface of the stent. Silver ions arewell known to have excellent antimicrobial activity against a wide range of microorganisms. In this study, we designed and constructed silver-coated plastic stent (PS) and investig...

The present work investigates the size dependent reflective properties of TiO2 nanoparticles and discusses the development of reflectors. The nanocrystalline TiO2 powders with different crystallinity and phase structures were obtained by controlling the reaction parameters. TiO2 nanoparticles synthesized via sol-gel method were characterized by using X-ray diffraction (XRD), transmission electr...

introduction : pistachio (pistaciavera l.) is a tasty nut and a good source of nutrients. ithas a high content of numerous beneficial nutritive and bioactive compounds such as proteins, carbohydrate, moisture, vitamins, minerals, fiber and other micronutrients compounds, but the most exceptional components are the amount of fats and especially unsaturated fatty acids. therefore, this nut is hig...

With the development of plastic surgery techniques, computer aided approach has become a significant method in medical plastic surgery. In order to solve effects on surgical results made by the surface of a wound in craniofacial cosmetic surgery, accurate preoperative preparation is usually required for the surgery. This paper summarizes the application of computer aided technology in craniofac...

Many homogeneous assays are complicated by the adsorption of probe molecules by the surface of reaction vessels, which are often made of polypropylene or polystyrene-based plastics. To solve this problem, many protein and surfactant-based blocking agents are used. However, these blockers may interfere with intended assays by sequestering transition-metal ions, inducing protein denaturing, gener...

BACKGROUND Poly(amidoamine)s (PAAs) are synthetic polymers endowed with many biologically interesting properties, being highly biocompatible, non toxic and biodegradable. Hydrogels based on PAAs can be easily modified during the synthesis by the introduction of functional co-monomers. Aim of this work is the development and testing of novel amphoteric nanosized poly(amidoamine) hydrogel film in...

Segregation and chemical inhomogeneity are well-known problems in powder metallurgy and are also an issue for new applications of powder mixtures, for example as starting materials for severe plastic deformation. In this study, Cu-coated Fe powder was prepared via immersion deposition, inductively hot-pressed and subsequently deformed using high-pressure torsion. The homogeneity of the pressed ...