In order to obtain a compound stain to differentiate between mast and plasma cells, it was necessary to find dyes which provided a distinct colour contrast between the two types of cell. The aqueous acetic Alcian blue method (McManus and Mowry, 1960) stained mast cells, but also other tissue elements. Using Alcian blue at a pH less than 10 (Johnson and Helwig, 1963) the mast cells stained brill...

In previous studies, it was established that chitosan and its quaternized derivatives are potent enhancers of hydrophilic compounds absorption across intestinal epithelia. The aim of this study was to evaluate the application of a new quaternized chitosan, triethyl chitosan (TEC), in pharmaceutical approaches. TEC was synthesized by a one step process via a 2(2) factorial design to optimize the...

Efficiency of white-rot fungi-Stereum ostrea (S. ostrea) as a test culture and Phanerochaete chrysosporium (P. chrysosporium) as a reference culture in colour removal from a textile dye, Remazol brilliant blue-19 (RBB-19) in medium was compared in this study. S. ostrea was more efficient than P. chrysosporium in decoloration process. Different parameters pH, temperature, sources of carbon and n...

In this contribution, a significant catalyst based on spinel ZnMn2O4 composite nanoparticles has been developed for electro-catalysis of nitrophenol and photo-catalysis of brilliant cresyl blue. ZnMn2O4 composite (hetaerolite) nanoparticles were prepared by easy low temperature hydrothermal procedure and structurally characterized by X-ray powder diffraction (XRD), field emission scanning elect...

Brilliant blue G (BBG), best known as an antagonist of P2X7 receptors, was found to inhibit voltage-gated sodium currents in N1E-115 neuroblastoma cells. Sodium currents elicited from a holding potential of -60 mV were blocked with an IC(50) of 2 μM. Block was enhanced in a use-dependent manner at higher stimulation rates. The voltage-dependence of inactivation was shifted in the hyperpolarizin...