Blue pigments organic blues

Some anthraquinone dyes are employed as organic pigments (see Pigments, organic). Examples appear in Figure 1. Indanthrone blue (6) is an important automotive paint pigment as is Cl Pigment Red 177 (7), a bisanthraquinonyl. 

Our work aims at identifying, by subpicosecond broadband transient absorption and gain spectroscopy, the primary photochemical steps of the phototransduction process in Blepharisma japonicum, more specifically in the light-adapted form of the organism (blue cell) for which the photoactive pigment is oxyblepharismin [5] (see Scheme 1) and the associated macromolecule is a large non-soluble protein (200 kDa) [6]. 

Blue pigments. The most common organic blue pigments in the coating industry is copper phthalocyanine (Fig. 7.11) [10]. This is a bright,... 

Organic blues, reds, and yellows were widely used in manuscript painting Ancient pigment naturally occurring in many places... 

All of the autotrophic monerans are collectively known as cyanobacteria. Because they contain chlorophyll, they can use the Sun s energy to make their own food. In addition to chlorophyll, these organisms possess two other pigments phyco-cyanin, a blue pigment, and phycoerthrin, a red one. The presence of these two accessory pigments helps cyanobacteria... 

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