The Binding behavior of acidic capsular polysaccharide (SPS), isolated from Klebsiella serotype K43 with oppositely charged dyes and surfactants have been studied by absorbance and emission spectroscopic studies. Each repeating unit of the SPS consists of three D-mannose, one D-galactose and one D-glucuronic acid residue. The anionic polymer exhibited chromtropic character and induced strong me...

The effects of sublethal amounts of the cationic dye, neutral red, upon the structure of pancreatic exocrine cells, and upon the mitochondria of renal distal tubule cells, have been studied with the electron microscope. It was found that neutral red is a cytoplasmic toxin which causes reproducible and characteristic changes in the ergastoplasm, the zymogen granules, the mitochondria, and possib...

A series of cellulose ampholytes (CAms), with substitution degrees of cationic groups (DSC) of 0.41, 0.79, and 1.08, and with a substitution degree of anionic groups of 0.68, was prepared from sodium carboxymethylcellulose by a cationization reaction with 2,3-epoxypropyltrimethylammonium chloride. The obtained CAms were crosslinked by ethyleneglycoldiglycidylether (EGDE) to obtain cellulose pol...