- A
pigment is a
powder used to add or
alter color or
change visual appearance.
Pigments are
completely or
nearly insoluble and
chemically unreactive in...
-
brown to black,
depending on the
concentration of
melanin in the iris
pigment epithelium (located on the back of the iris), the
melanin content within...
- A
respiratory pigment is a
metalloprotein that
serves a
variety of
important functions, its main
being O2 transport.
Other functions performed include...
-
Biological pigments include plant pigments and
flower pigments. Many
biological structures, such as skin, eyes, feathers, fur and hair
contain pigments such...
- (ōkhrós) 'pale'), iron ochre, or
ocher in
American English, is a
natural clay
earth pigment, a
mixture of
ferric oxide and
varying amounts of clay and sand. It ranges...
- A lake
pigment is a
pigment made by
precipitating a dye with an
inert binder, or mordant,
usually a
metallic salt. Lake
pigments are
largely chemically...
-
ornament and later, in the Renaissance, to make the
pigment ultramarine, the most
expensive of all
pigments. In the
eighth century Chinese artists used cobalt...
- Blue
pigments are
natural or
synthetic materials,
traditionally made from minerals,
Being water-insoluble by definition, blue
pigments used to make the...
-
Green pigments are the
materials used to
create the
green colors seen in
painting and the
other arts. At one time, such
pigments came from minerals, particularly...
- A
photosynthetic pigment (accessory
pigment;
chloroplast pigment;
antenna pigment) is a
pigment that is
present in
chloroplasts or
photosynthetic bacteria...
