PURPOSE To clarify the relationship between variations in posterior vitreous detachments (PVDs) and visual prognoses in idiopathic epiretinal membranes (ERMs). METHODS In this retrospective, observational, and consecutive case series, we observed variations in PVDs in 37 patients (mean age, 65.7±11.0 years) with ERMs and followed them for 2 years. Three PVD types were found biomicroscopically...

This study aimed to investigate the influence of bimodal TiO2/nanoTiO2 coatings obtained in PVD/ALD hybrid process on an Al-Si-Cu-type aluminium alloy physicochemical properties investigated materials. The reference materials were uncoated substrates and samples coated with TiO2 single PVD ALD processes. Tests carried out morphology using scanning electron microscopy (SEM) atomic force (AFM) de...

Pseudomonas spp. have the capacity to utilize siderophores produced by diverse species of bacteria and fungi, and the present study was initiated to determine if siderophores produced by rhizosphere microorganisms enhance the levels of iron available to a strain of Pseudomonas putida in this natural habitat. We used a previously described transcriptional fusion (pvd-inaZ) between an iron-regula...

Keywords: AL7075-T6 alloy Ti–TiN coating PVD magnetron sputtering Surface roughness Fuzzy logic Fretting fatigue a b s t r a c t In this study, the fretting fatigue resistance of AL7075-T6 alloy is investigated using surface treatment Ti–TiN multilayer coating by physical vapor deposition (PVD) magnetron sputtering technique. A fuzzy logic model was established to forecast the surface roughness...

Depositing MoS2 coatings for industrial applications involves rotating the samples during PVD magnetron sputtering process. Here, we show that a 3-fold substrate rotation, along large target–substrate distance given by deposition unit, introduces porosity inside coatings. The mechanical properties and wear behavior strongly correlate with degree of porosity, which, in turn, depends on temperatu...

To acquire iron, Pseudomonas aeruginosa secretes the fluorescent siderophore pyoverdine (Pvd), which chelates iron and shuttles it into the cells via the specific outer membrane transporter FpvA. We studied the role of iron and other metals in the binding and transport of Pvd by FpvA and conclude that there is no significant affinity between FpvA and metal-free Pvd. We found that the fluorescen...