Prof. M. Fischbach, Unité Nephrologie Dialyse, Transplantation, Pédiatrie 1, Hôpitaux Universitaires de Strasbourg Hautepierre, F-67000 Strasbourg (France) Patient Dear Sir, Microbially contaminated dialysate is a well-known risk in patients undergoing he-modialysis but today seems very infrequent. On the contrary, more attention is to take into consideration for the dialysate pyrogenic substan...

uv-induced grafting technique was used as a flexible method for surface modification of polysulfone (psf) ultrafiltration (uf) membranes in order to prepare hydrophilic nanofiltration (nf) membranes. flat sheet polysulfone (psf) ultrafiltration membranes were prepared via phase inversion method. n-methylene-2-pyrrolidone (nmp) and polyethylene glycol (peg) of three different molecular weights (...

In view of the growing number of traffic accidents and human life expectancy, bone is emerged as the most frequently transplanted human tissue and its demand is growing in medical market for reconstruction of bone defects [1]. So researchers in the field of orthopedics have given considerable emphasis on the fabrication of reliable and economically feasible biomaterials for bone tissue replacem...

Adverse reactions during hemodialysis are extremely common and include a wide range of clinical presentations from mild to life threatening. We present a case of a 34 year old woman in the Burn Intensive Care Unit, who developed acute kidney injury requiring renal replacement therapy. She was placed on continuous veno-venous hemofiltration with the NxStage machine which uses a synthetic PUREMA ...

Aromatic nitration has been used to modify the polymer mam chain of polysulfone and polyethersulfone Alteration m the gas separation charactenstlcs of homogeneous membranes made out of these polymers could be observed upon nitration Generally, separation factors for gas mixtures of CO&H, increased while the permeability decreased Remarkably, a decreasing dlffuslvlty for both gases upon nitratio...

Although chemical solutions are widely employed to clean membranes, they can also be responsible for changes in membrane properties. The two major drawbacks are then either the functional properties of the membrane gradually change, so the production can no longer meet requirements in terms of volume or quality, or the membrane simply breaks up (hollow fibers), and the system has to be shut dow...

The world market for CO2/CH4 separation using membrane technology is getting bigger and polysulfone (PSf) is one of the most widely investigated polymer membrane materials. However, the existing PSf membranes performances are insufficient to fully exploit these opportunities. Therefore, modification that would produce membrane that fit the needs of target separation performances is a main issue...

A membrane biofilter is used to biodegrade toluene in the gas phase. Active microorganisms are immobilized on the outside of a hollow fiber membrane cartridge and air containing toluene as the contaminant is passed through the membrane fibers. A porous polysulfone membrane containing water in the pore is used through which both toluene and oxygen are diffused to the biofilm attached to the outs...