Surface tailored PS/TiO2 composite nanofiber membrane for copper removal from water.

Polystyrene (PS)/TiO2 composite nanofiber membranes have been fabricated by electrospinning process for Cu(2+) ions removal from water. The surface properties of the polystyrene nanofibers were modulated by introducing TiO2 nanoparticles. The contact angle of the PS nanofiber membrane was found to be decreased with increasing concentration of TiO2, depicted enhanced hydrophilicity.

Removal of hepatitis A virus from water by polyacrylonitrile-based ultrafiltration membranes.

Ultrafiltration-based polyacrylonitrile membranes (UF-membranes) were evaluated for their ability to retain tissue culture adapted indigenous hepatitis A virus from water. Amicon cell (dead-end ultrafiltration unit)-based experiment was set up and viral assay was carried out using rapid and sensitive reverse transcriptase polymerase chain reaction (RT-PCR). The RT-PCR results show retention of virus particles by the polyacrylonitrile membranes.