Sentences with phrase «by pigment molecules»

When light hits a painting, some photons are absorbed by pigment molecules, which split apart.

Not exact matches

In nature, the Cyphochilus beetle, which is native to Southeast Asia, produces its ultra-white colouring not through pigments, but by exploiting the geometry of a dense network of chitin — a molecule which is also found in the shells of molluscs, the exoskeletons of insects and the cell walls of fungi.
A Japanese group, led by Kozo Hayaski of the Tokyo University of Education, isolated blue crystals from flower petals of the spiderwort (Commelina communis) and proposed that the crystals were composed of two pigment molecules, one of which was an anthocyanin and the other a flavone — a yellow pigment — joined to a magnesium metal ion.
Lentigo is characterized by hyperpigmentation, or an overpopulation of pigment molecules, that turns patches of the dog's skin black.
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