Bromophenols are present in polychaetes as well as in algae in marine environments including the North Sea. They are thought to cause the typical sea-like taste and flavour. The ecological function of brominated phenols is not clear yet, but they may play a role in chemical defence and deterrence [Kicklighter, C.E., Kubaneck, J., Hay, M.E., 2004. Do brominated natural products defend marine wor...

We investigated the actual factor determining the softening effect of a fabric softener. The adsorption area of the softener on model cotton cloths and yarns was identified using bromophenol blue. There was almost no softener at the cross-points of the yarns in the cloth samples or in the inner part of the yarns. The softening performance was better when there was less softener at the cross-poi...

A simple, sensitive, selective rapid spectrophotometric method has been developed for the determination of terazosin in pure form, pharmaceutical formulations and blood sample based on the oxidative coupling reaction with MBTH (3-methyl-2-benzothiazolone hydrazone hydrochlorideMethod-A), and Ion association reaction with BPB(Bromophenol Blue-Method-B) reagents at P H_ 4.0 which is extractable a...

Bromocresol green (BCG) and bromophenol blue (BPB) in acidic and basic forms are used as dispersing agents to suspend multiple-walled carbon nanotubes (MWCNTs) into deionized water. The chemical structures of dye molecules are characterised by ultraviolet-visible-near infrared and nuclear magnetic resonance spectroscopies. The presence of MWCNTs in water is evidenced by transmission electron mi...

The fat body cells of Pachycondyla (=Neoponera) villosa are disposed in a single layer between the cuticle and the digestive tract, forming a group of cells enclosed by a thin membrane. Histological studies have revealed three different cellular types: trophocyte (more abundant), urate, (located among the trophocytes), and oenocyte (the scarcest), usually observed laying near the cuticle. Histo...

Two distinct 2-acetamido-2-deoxy-alpha-D-galactosidases have been separated from filtrates of cultured Clostridium perfringens by electrophoresis in 6.5% poly(acrylamide) gels. One of the enzymes had a mobility of 0.32--0.36 (relative to Bromophenol Blue) and was identified as the exoglycosidase, 2-acetamido-2-deoxy-alpha-D-galactosidase. It appears to be the same enzyme as that reported in 197...

Quaternary ammonium methacryloxy silicate (QAMS), an organically modified silicate (ORMOSIL) functionalized with polymerizable methacrylate groups and an antimicrobial agent with a long lipophilic alkyl chain quaternary ammonium group, was synthesized through a silane-based sol-gel route. By dissolving QAMS in methyl methacrylate monomer, this ORMOSIL molecule was incorporated into an auto-poly...