Selenium nanoparticles (SeNPs) with a bright red colour have aroused worldwide attention due to their unique properties in selenium supplementation because of low toxicity and favourable bioavailability. A simple method was developed for making nanolayer on the inner surface Polyvinyl chloride (PVC) silicone tube. The were produced by reaction sodium selenite ascorbic acid. Red amorphous been s...

An 88-year-old woman with advanced Parkinson's disease (stage V on the Yahr scale) had difficulty in expectoration and underwent tracheostomy in 1999. In July 2004, granulation tissue was formed in the tracheal lumen at the tip of the tracheostomy tube, and a standard type silicone T-tube was inserted. Thereafter, she was cared for at home, where she was doing well until early March 2009, when ...

BACKGROUND Peripheral nerve repair is often complicated by fibroblastic scar formation, nerve dysfunction, and traumatic neuroma formation. Use of silicone may improve outcomes of these repairs. In this study, we tried to evaluate effectiveness of silicone gel on rats’ sciatic nerve repair, axon regeneration and scar formation around and in the nervous tissues. METHODS This experimental stud...

BACKGROUND Tracheal intubation with neuromuscular blocking agents is associated with a low incidence of minor vocal cord sequelae (8%). The aim of this noninferiority trial was to demonstrate that the frequency of vocal cord sequelae after fiberoptic intubation with a flexible silicone tube without neuromuscular blocking agents was less than 25% (maximum tolerable inferiority). METHODS Two-hu...

PURPOSE To investigate the immediate and long-term outcomes of Ahmed glaucoma valve (AGV) implantation with silicone tube ligation and removable external stents. METHODS This retrospective non-comparative study investigated the outcomes of AGV implantation with silicone tube ligation and removable external stents in 95 eyes (90 patients) with at least 12 months of postoperative follow-up. Qua...

Different fabrication methods are evaluated for producing pressure-compensating tubes for use in low-pressure drip irrigation systems. Such devices would allow drip irrigation systems to operate at driving pressures much lower than those required by current available technology, allowing for cost and water savings in developing nations. Fabrication methods explored consist mainly of molding of ...

In real-life situations, bacteria are often transmitted from biofilms growing on donor surfaces to receiver ones. Bacterial transmission is more complex than adhesion, involving bacterial detachment from donor and subsequent adhesion to receiver surfaces. Here, we describe a new device to study shear-induced bacterial transmission from a (stainless steel) pipe to a (silicone rubber) tube and co...

Aim of investigation is to study the features mechanism restenosis on implanted intravascular stent, using original device for modeling intra-arterial circulation. Materials and methods. We use an circulation (document invention RU 202780). It a simulation arterial vessel, made glass tube rotameter. Its free ends are connected with two silicone tubes, other - pump, powered by 12 Volt battery. i...

BACKGROUND Renal transplant ureteral stricture or obstruction is a rare but devastating complication after renal transplantation. OBJECTIVE To determine the efficacy and complications of subcutaneous prosthetic ureters as a salvage procedure in transplanted kidneys with recurrent ureteral obstruction. METHODS 5 subcutaneous prosthetic ureters were inserted in 5 kidney recipients who had rec...