Polyvinyl chloride (PVC) endotracheal tubes (ETTs) nanoetched with a fungal lipase have been shown to reduce bacterial growth and biofilm formation and could be an inexpensive solution to the complex problem of ventilator-associated pneumonia (VAP). Although bacterial growth and colonization on these nanoetched materials have been well characterized, little is known about the mechanism by which...

In this work, novel thin film composite membranes (TFCs) of poly (ether-6-block amide) (Pebax-1657) on a polyvinyl chloride (PVC) ultrafiltration membrane as support were prepared using inclined coating method for CO2 separation. Investigating the effects of top selective layer thickness formed by controlling the coating angle (15-60°) and polymer solution concentration (5-10 wt.%), ...

Tertiary fatty amide, namely N,N-dibutylundecenamide (DBUA), has been synthesized and evaluated as potential plasticizer for polyvinyl chloride (PVC). Homogeneous PVC/DBUA composite films containing 20, 30 40 wt% of DBUA were prepared by solvent casting. Infrared analysis blends indicated molecular interactions between polar –CH–Cl group PVC carbonyl tertiary amide. According to results mechani...

BACKGROUND Ventilator-associated pneumonia is a deadly nosocomial infection caused by contaminated endotracheal tubes. It has been shown that polyvinyl chloride (PVC, the endotracheal tube substrate) coated with elemental selenium nanoparticles reduces bacterial adherence and proliferation on PVC by over 99%. However, it is not known if selenium nanoparticles elicit a cytotoxic effect in vitro....

Fast pyrolysis of waste from agroindustry may be an alternative choice for sustainable use enhanced biofuels. Plastics are one option improving the hydrogen to carbon efficiency ratio (H/Ceff) biomass feedstock. Waste in blends with could modify reaction mechanism removing oxygen by substituting decarbonylation and decarboxylation dehydration. Firstly, fast was performed find optimal mass blend...

The ongoing COVID-19 pandemic has pushed scientists and technologists to find novel strategies develop new materials prevent the transmission, spread, entry of pathogens into human body. In this report, fabrication polyvinyl chloride (PVC)-SiO2-Ag composite is presented, in which percentage Ag 0.84% wt. Our findings render that eliminates (> 99.8%) bacteria fungus (Staphylococcus aureus, Escher...

The degradation of PVC at a processing temperature is mostly caused by its abnormal and unsta— ble molecular structures. It has been pointed out that its allyl chloride structures play a significant role as the abnormal and unstable structures. Inasmuch as the allyl chloride struc— tures are markedly more chemically active than the normal structure, the selective chemical treatments are applica...

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...

Polyvinyl chloride (PVC) is one of the world’s most widely produced polymers and it is used in a wide range of areas such as building, transport, packaging, electrical/electronic and healthcare. Manufacturing of PVC products is dependent on several additives, e.g. plasticizers, heat stabilizers and flame retardants. To reduce the migration of additives in PVC products the incorporation of a nan...

BACKGROUND Phthalates are used as plasticizers in soft polyvinyl chloride (PVC) and in a large number of consumer products. Because of reported health risks, diisononyl phthalate (DiNP) has been introduced as a replacement for di(2-ethylhexyl) phthalate (DEHP) in soft PVC. This raises concerns because animal data suggest that DiNP may have antiandrogenic properties similar to those of DEHP. The...