An attempt has been made to recover acetic acid from aqueous solutions using supported liquid membrane (SLM) technique. A flat sheet polytetrafluoroethylene (PTFE) supported membrane impregnated with vegetable oils was tested for transport of acetic acid. The permeation of acetic acid was studied by varying the experimental conditions namely strength of stripping phase, stirring speed and selec...

Interest has risen among utilities in using natural ester (NE) insulating oils in transformers as a substitute for conventional mineral oil. However, present understanding on aging behaviour of NE-paper composite insulation system and knowledge on application of existing condition monitoring tools for NE-based insulation are inadequate. This limits the cost effective and reliable field applicat...

Among the most difficult bacterial infections encountered in treating patients are wound infections, which may occur in burn victims, patients with traumatic wounds, necrotic lesions in people with diabetes, and patients with surgical wounds. Within a wound, infecting bacteria frequently develop biofilms. Many current wound dressings are impregnated with antimicrobial agents, such as silver or ...

A hydrated regular cellulose paper filter modified with nanofibrillated cellulose (NFC) hydrogel was successfully fabricated for water/oil separation. The fabricated filter's hydrophilic and oleophobic properties resulted in increased filter life and decreased environmental impact, while displaying water flux of 89.6 L h(-1) m(-2) with efficiency ≥99% under gravitational force.

Abstract The weather resistance of Compreg surfaces depends on various factors, such as top veneer type, impregnating resin, and protective topcoats. Artificial weathering tests were performed for the first time material types with oak teak surfaces. Both showed strong surface brightening due to resin degradation subsequent photobleaching exposed surface. Directly pressed, phenolic resin-impreg...

Highly porous nanocellulose aerogels can be prepared by vacuum freeze-drying from microfibrillated cellulose hydrogels. Here we show that by functionalizing the native cellulose nanofibrils of the aerogel with a hydrophobic but oleophilic coating, such as titanium dioxide, a selectively oil-absorbing material capable of floating on water is achieved. Because of the low density and the ability t...

Fecal diacylglycerols (DAGs) are known activators of protein kinase C (PKC), which in turn modulates colonic epithelial cell growth programs and, therefore, could play a role in the malignant transformation process. However, the effects of physiological modifiers such as diet and carcinogen on fecal DAG mass and composition have not been reported. We therefore designed a 2 x 2 x 2 factorial stu...