in this study, the degradation potential of five polycyclic aromatic hydrocarbons (pahs) by aerobic mixed bacterial cultures was investigated. microorganisms were isolated from hydrocarbon contaminated soils of shadegan wetland located in southwest of iran. the degradation experiments were conducted in liquid cultures. pah or pahs concentration was 100 mg/l at the beginning of degradation exper...

During peritoneal dialysis, peritoneal cells are repeatedly exposed to a non-physiological hypertonic environment with high glucose content and low pH. Current sterile dialysis solutions cause inflammation in the submesothelial compact zone that leads to fibrosis, neoangiogenesis, progressive increases in solute transfer and even ultrafiltration failure. The peritoneal dysfunction will further ...

In this research, zeolite-TiO2 nanocomposite was prepared for degradation of dibenzothiophene as a typical aromatic organosulfur compound of transportation fuels.The synthesized TiO2 was immobilized on the surface of clinoptilolite by Solid State Dispersion (SSD) method. The nanocomposite was then characterized by XRD, FTIR, TEM and SEM techniques. Photodegradation of ...

Pentachlorophenol (PCP) was more rapidly degraded in acetate and glucose-fed microbial fuel cells (MFCs) than in open circuit controls, with removal rates of 0.12 ± 0.01 mg/Lh (14.8 ± 1.0 mg/g-VSS-h) in acetate-fed, and 0.08 ± 0.01 mg/L h (6.9 ± 0.8 mg/g-VSS-h) in glucose-fed MFCs, at an initial PCP concentration of 15 mg/L. A PCP of 15 mg/L had no effect on power generation from acetate but po...

Background Compost habitats sustain a vast ensemble of microbes that engender the degradation of cellulose, which is an important part of global carbon cycle. β-Glucosidase is the rate-limiting enzyme of degradation of cellulose. Thus, analysis of regulation of β-glucosidase gene expression in composting is beneficial to a better understanding of cellulose degradation mechanism. Genetic diversi...

Fresenius Medical Care-North America has developed a neutral-pH version of its Delflex peritoneal dialysis (PD) solution with low glucose degradation products (GDPs): Delflex Neutral pH. The Delflex Neutral pH system stores the PD solution in a dual-chamber bag. The product is admixed by the patient before use. The new design facilitates GDP reduction in two ways. First, GDPs are reduced becaus...

The latest literature describing clinical experiences with peritoneal dialysis solutions low in glucose degradation products (GDPs) is mostly consistent with previous reports suggesting less inflammation, better peritoneal mesothelial mass preservation, a lower rate of decline of residual renal function, and improved patient survival. The data suggest stable peritoneal transport rates, but no d...

Bioincompatibility of conventional glucose-based peritoneal dialysis fluids (PDF) has been partially attributed to the presence of glucose degradation products (GDP) generated during heat sterilization of PDF. Most previous studies on GDP toxicity were performed on animal and/or transformed cell lines, and the impact of GDP on peritoneal cells remains obscure. The short-term effects of six iden...

Despite technology advances, prevention of peritonitis remains one of the major challenges in peritoneal dialysis (PD). Several innovative developments have shown an impact on peritonitis rates. Innovative antimicrobial-coated catheter modifications have been introduced, showing promising results in vitro. Topical application of antimicrobial agents such as mupirocin to prevent exit-site infect...