Oxygen reduction catalyzed by cofacial metalloporphyrins at the 1,2-dichlorobenzene-water interface was studied with two lipophilic electron donors of similar driving force, 1,1'-dimethylferrocene (DMFc) and tetrathiafulvalene (TTF). The reaction produces mainly water and some hydrogen peroxide, but the mediator has a significant effect on the selectivity, as DMFc and the porphyrins themselves ...

Materials and Methods: All the reagents were received from Sigma Aldrich Chemical Co. and used without further purification. Solvents were purchased from commercial sources and purified by reported protocol.1 Spectroscopy grade solvents were used for physical studies. 1H NMR and 13C NMR experiments were done on a Bruker DPX-400 MHz and 500 MHz NMR machine and all the data were calibrated agains...

Explanation.................................................................................................. 316 Evaluation for acceptable daily intake......................................................... 316 Biochemical aspects ....................................................................... 316 Absorption, distribution and excretion.................................. 316 Biotransfo...

AIM To study of bone mineral density (BMD) in patients with chronic obstructive pulmonary disease (COPD). SUBJECTS AND METHODS 104 patients with COPD were examined. A study group comprised men with a long smoking history. BMD of the lumbar spine in the frontal view and that of the proximal femur (the neck, Ward's area, greater trochanter) were studied by dual-energy X-ray absorptiometry using...

Synthetic polycations, such as nylon-3 copolymers, are regarded to be good functional mimics of antimicrobial peptides acting mostly by permeabilizing bacterial membranes. Understanding more complex membrane behavior behind permeabilization, e.g. vesicle aggregation and fusion, has major implications for the better interpretation different mechanisms actions. The interactions two types copolyme...

Seed protein quality is an important topic in the production of soybean. The quality of soybean proteins is limited by anti-nutrient proteins and low levels of essential sulfur amino acids. In this study, protein content and solubility of six cultivars were evaluated and seed storage proteins were analyzed using SDS-PAGE and scanning densitometry. The results showed that seed storage protein ba...