Results 201 to 207 of about 1,352 (207)

Koi Fish‐Scale Iridophore Cells Orient Guanine Crystals to Maximize Light Reflection

ChemPlusChem, 2017
AbstractFish‐scale iridophore cells deposit guanine crystals and assemble them into multilayer reflectors to produce silvery reflectance. The crystal orientation controls the reflective properties of the fish scales, but little is known about the degree of orientation of the guanine crystals and whether this orientation is pre‐determined at the level ...
Nir, Funt, Benjamin A, Palmer, Steve, Weiner, Lia, Addadi   +3 more
openaire   +2 more sources

Bio-inspired artificial iridophores based on capillary origami: Fabrication and device characterization

Applied Physics Letters, 2011
Cephalopods have evolved complex optical mechanisms of dynamic skin color control based on mechanical actuation of micro-scale optical structures such as iridophores and chromatophores. In this work, we describe the design, fabrication, and characterization of bio-inspired artificial iridophores, which resemble microflowers with flexible reflective ...
Supone Manakasettharn, J. Ashley Taylor, Tom N. Krupenkin   +2 more
openaire   +1 more source

Effects of ACTH on melanophores and iridophores isolated from bullfrog tadpoles

General and Comparative Endocrinology, 1973
Melanophores and iridophores were isolated from bullfrog tadpoles by the methods of trypsin digestion and Ficoll density-gradient centrifugation and cultured in vitro in collagen-coated plastic dishes. Both chromatophores attached to the dish and formed dendritic structures.
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Hormone‐induced pigment translocations in amphibian dermal iridophores, in vitro: Changes in cell shape

Journal of Experimental Zoology, 1979
AbstractHormone‐induced pigment translocation studies were conducted at both the light and electron microscopic levels on cultured dermal iridophores from the Mexican leaf frog, Pachymedusa dacnicolor. Two distinct types of dermal iridophores were characterized which differed in (1) their in vivo locations, (2) their overall morphologies in vitro, (3 ...
B T, Butman, M, Obika, T T, Tchen, J D, Taylor   +3 more
openaire   +2 more sources

Study of the motile mechanism in neon tetra (Paracheirodon innesi) iridophores

Comparative Biochemistry and Physiology Part A: Physiology, 1992
Abstract 1. 1. Using the preparations of lateral stripe skin, the motile mechanism of the neon tetra ( Paracheirodon innesi ) iridophores was studied. 2. 2. Colchicine and vinblastine, antimitotic reagents, inhibited the iridophore response to norepinephrine (NE) reversibly. 3. 3.
Noriko Oshima, Hiroshi Nagaishi
openaire   +1 more source

Presence of Pteridine Pigments in Isolated Iridophores

Pigment Cell Research, 1988
J T, Bagnara, K L, Kreutzfeld, P J, Fernandez, A C, Cohen   +3 more
openaire   +2 more sources

Further studies on the hormonal control of melanophores and iridophores isolated from bullfrog tadpoles

General and Comparative Endocrinology, 1974
openaire   +2 more sources