Active pigments

Koch, P.B. et al., Insect pigmentation activities of beta-alanyldopamine synthase in wing color patterns of wild-type and melanic mutant swallowtail butterfly, Papilio glaucus, Pigment Cell Res., 13, Suppl 8, 54, 2000. 

Treatment of marigold meal, oleoresin, or formulations containing lutein with strongly alkaline aqueous solutions under controlled conditions to isomerize lutein into zeaxanthin, a product with greater pigmenting activity... 

Two hypotheses have been forwarded to account for this blocking of the Na + channels ([1] for a recent review, see [2]). The first is that Ca2+ ions, which are released from the inside of the discs into the cytoplasmic space upon illumination, are responsible for the shut off of the dark current. The second hypothesis casts cyclic GMP into the role of the transmitter upon absorption of light by a visual pigment, activation of a phosphodiesterase occurs which reduces the levels of cyclic GMP (5 X 104 molecules of cyclic GMP disappear upon bleaching of one molecule of pigment). This in turn results in a reduced activity of a protein kinase which is... 

Acrylic acid, zinc salt Ageflex ZDA EINECS 238-692-3 2-Propenoic acid, zinc salt Zinc acrylate Zinc dlacrylate. Crosslinker for molded polybutadiene compounds, conductive and protective coatings, coagent for SBR compounds and reactive pigments activator for rubber compounding scorch retarder. Rit-Chem. 

Before choosing a pigment and formulating paint, one question must be answered will an active or a passive role be required of the pigment The role of the pigment — active or passive — must be decided at the start for the fairly straightforward... 

Cornwall MC, Fain GL (1994) Bleached pigment activates transduction in isolated rods of the salamander Tetina. J Physiol 480 261-279... 

Cornwall MC, Matthews HR, Crouch RK, Fain GL (1995) Bleached pigment activates transduction in salamander cones. J Gen Physiol 106 543-557... 

Unfortunately, most of the available information about anti-corrosive pigments, active pigments or self-healing pigments (all terms are synonymously used) cover only certain application conditions and practical examples for the use of the... 

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