Under iron-limiting conditions, Pseudomonas aeruginosa PAO1 secretes a fluorescent siderophore called pyoverdine (Pvd). After chelating iron, this ferric siderophore is transported back into the cells via the outer membrane receptor FpvA. The Pvd-dependent iron uptake pathway requires several essential genes involved in both the synthesis of Pvd and the uptake of ferric Pvd inside the cell. A p...

Abstract Aluminium-doped zinc oxide (AZO) is a potential low-cost alternative to indium tin (ITO) for application in optoelectronic devices as transparent conducting thin film. Typically, AZO films are deposited using expensive, high vacuum equipment with energy cost and materials wastage. In this study, slot-die coating was used an inexpensive deposition form nanoparticle under ambient laborat...

This paper presents the results of a comprehensive study erosive wear resistance, strength, and adhesive characteristics high-temperature structural titanium alloy Ti-5.7Al-3.8Mo-1.2Zr-1.3Sn (the Russian grade VT8M-1) with coarse-grained ultrafine-grained (UFG) structures protective erosion-resistant TiVN coating produced by physical vapor deposition (PVD), deposited on surface. A microscopic a...

The prevalence of peripheral vascular disease (PVD) was determined in 296 Japanese diabetics (mean age 55.2 years, range 19 to 79 years), using a Doppler ultrasonic technique. PVD was diagnosed in 11.5% of the diabetic patients (7.6% females, 14.6% males). In 88% of all patients with PVD, asymptomatic impaired circulation was diagnosed. There was a clear increase of PVD with age. It was found t...

The use of ionized gaseous medium (IGM) to prepare a hard alloy material surface by grinding and its effect on the coating quality was investigated. During grinding, IGM was fed to the cutting area by different methods namely: clockwise (longitudinal), anticlockwise (opposed) and transverse (Cross) feeding, respectively. Thereafter, the samples were coated with a titanium nitride on a modern va...

Diamond-like carbon (DLC) coatings are used due to their extraordinary tribomechanical properties, great hardness, high elastic modulus, wear resistance, low friction coefficient and chemical inertness, which provide them with biocompatibility. Compared other physical vapor deposition (PVD) of transition nitrides carbonitrides, DLC has limited adhesion, so it is necessary develop new techniques...