Bu çalışmada, bazı ağır metallerin, yeni bir membran (HS-C@PIM) kullanılarak sulu ortamdan verimli şekilde taşınması tasarlanmıştır. amaçla; metaller için uygun bağlanma yeri olan merkapto-sübstitüe kaliksaren türevi polimer içeren membranda taşıyıcı olarak kullanıldı. HS-C@PIM’in yapısını ve yüzey morfolojisini değerlendirmek taramalı elektron mikroskopisi (SEM), Termogravimetrik analiz (TGA) ...

Osmotic swelling is a common feature of many cataracts. Sugar cataracts and hereditary mouse cataracts are two types in which osmotic changes play a prominent role. In sugar cataracts, the initial swelling brought about by polyol accumuation leads to an imbalance in the pump-leak equilibrium. The pump mechanism becomes unable to keep pace with the leaky membranes. The marked increases in Na and...

The effect of the addition of sodium chloride to gelatin solutions is shown from the Donnan relationship to increase the ionisation of the gelatin, the increase produced in acid solutions reaching a maximum at about 1/1000 molar salt concentration. This effect is attributed to the formation of complex ions. From the similar action of calcium and copper chlorides the effective combining power of...

The urate concentration of the supernatant was greater after supersaturated solutions of sodium urate were incubated in a suspension of CM-Sephadex C-25 than in one of Sephadex G-25. The supernatant urate concentration was greater when the CM-Sephadex had been equilibrated with potassium than with sodium. The results are analogous with those obtained in studies of urate solubility in proteoglyc...

We present an experimentally guided, bi-phasic, multi-species ionic gel model to compare and make quantitative predictions on the viscoelastic properties of healthy mucus versus Cystic-Fibrosis infected mucus. The mixture theory consists of the mucus (polymer phase) and water (solvent phase) as well as several different ions: H+, Na+ , Cl and Ca2+. The model is calibrated with the experimental ...

Van Slyke and his coworkers (14) have discussed the factors affecting the electrolyte and water distribution between serum and corpuscles and between serum and transudates with the development of equations according to the Gibbs-Donnan law predicting the influence of these factors on the distribution. An unequal distribution of electrolytes between serum and spinal fluid or between serum and as...

The swelling of the corneal buttons in aqueous solution can be prevented by adding high molecular weight solutes to the bathing medium. In appropriate concentrations of these colloidal substances the button can be dehydrated, a matter of some significance in clinical situations. Swelling of the cornea in the intact eye in vitro can be similarly prevented. The suggestion is made that swelling is...