Ultrastructure and Permeability of Nuclear Membranes

The Effect of Chronic Spinal Cord Injury on Ultrastructure of Epididymal Sperm in Rat

Purpose: The effects of chronic SCI on ultrastructure of spermatozoa aspirated from epididymis of rats. Materials and Methods: 45 adults Wistar rats were divided into 3 groups of SCI, control and sham. Following laminectomy, SCI was induced with a 15g weight dropped from a distance of 10 cm, onto exposed dura matter at T10 level. Sham group underwent laminectomy of T10 only, while control was n...

Experimental design applied to fabrication of PSF membranes via NIP's method Part2:Influential parameters on pure water permeability and selection criteria for optimum membrane in MF process

Preparation and characterization of nano-porous Polyacrylonitrile (PAN) membranes with hydrophilic surface

Polyacrylonitrile (PAN) membranes with nano-porous surface and high hydrophilicity were fabricated by addition of polyoxyethylene (40) nonylphenyl ether (IGEPAL) as an additive in the casting solution. The membranes were prepared from PAN/IGEPAL/1-Methyl-2-pyrrolidone (NMP) via phase inversion induced by immersion precipitation technique. Pure water was used as coagulation medium. The effects o...

On the Effective Permeability of Mixed Matrix Membranes

Mixed matrix membranes (MMMs) are attracting significant interest for pervaporation and gas separation applications. To better comprehend the impact of filler particles within polymer matrices, the species permeation mass transport was theoretically studied by numerical simulation using finite differences. The Fick’s second law of diffusion was solved for a three-dimensional MMM to obtain the c...

Preparation and characterization of nano-porous Polyacrylonitrile (PAN) membranes with hydrophilic surface

Polyacrylonitrile (PAN) membranes with nano-porous surface and high hydrophilicity were fabricated by addition of polyoxyethylene (40) nonylphenyl ether (IGEPAL) as an additive in the casting solution. The membranes were prepared from PAN/IGEPAL/1-Methyl-2-pyrrolidone (NMP) via phase inversion induced by immersion precipitation technique. Pure water was used as coagulation medium. The effects o...