In this work, new chitosan derivatives (CS1-CS6) were obtained by short-term hydrothermal treatment. The formation of occurred through two simultaneous processes: hydrolysis and Maillard self-reaction. synthesized chitosan-based self-reaction products characterized physical measurements spectroscopic methods (viscometry, UV–Vis, FTIR, 1H NMR, TGA XRD). results showed that treatment solutions le...

The terminal web of the intestinal brush border contains a spectrin-like protein, TW 260/240 (Glenney, J. R., Jr., P. Glenney, M. Osborne, and K. Weber, 1982, Cell, 28:843-854.) that interconnects the "rootlet" ends of microvillar filament bundles in the terminal web (Hirokawa, N., R. E. Cheng, and M. Willard, 1983, Cell, 32:953-965; Glenney J. R., P. Glenney, and K. Weber, 1983, J. Cell Biol.,...

The interaction with actin and intracellular localization of the 30,000-D actin-binding protein from the cellular slime mold Dictyostelium discoideum have been investigated to analyze the potential contributions of this protein to cell structure and movement. The formation of anisotropic cross-linked filament networks (bundles) containing actin and the 30,000-D protein has been observed by elec...

The bundle of filaments within microvilli of intestinal epithelial cells contains five major proteins including actin, calmodulin, and subunits of 105-, 95-, and 70-kdaltons. It has been previously shown (Howe, C. L., M. S. Mooseker, and T. A. Graves. 1980. Brush-border calmodulin: a major component of the isolated microvillus core. J. Cell Biol. 85: 916-923) that the addition of Ca++ (> 10(-6)...

The viscosity of cryolite melts conventional composition NaF–AlF3–CaF2–Al2O3 was studied by rotational viscometry using the FRS 1600 high-temperature rheometer. ratio NaF–AlF3 melt 2.1, 2.3, and 2.5; Al2O3 content varied from 2 to 6.6, CaF2 – 0 8 wt%. measurements were carried out in temperature range liquidus 1200 °C. conditions for laminar flow investigated determined, based on as a function ...