keratin

常见例句

Keratin is a tough, fibrous protein found in hair and nails.
角质是一种硬纤维蛋白，在头发和指甲中都存在。
She said the goal was to replace the keratin in our skin with the spider’s silk.
埃萨迪说，该项目的目标是用蜘蛛丝取代人类皮肤中的角蛋白。
The yellow, red, orange, and brown birds of the world assume their hues because of a pigment embedded in the keratin matrix of feathers.
这种集黄色，红色，橙色和棕色于一身的鸟类，能够呈现出如此多的色彩，得益于它的羽毛角蛋白间质里含有色素。

Scientists in the Washington area have been working with keratin, the main substance in poultry feathers.
Working at the leading edge of research on cellular biology and genetic skin disorders, Fuchs was the first to precisely describe keratins - the principal structural proteins of skin cells - and identify diseases caused by mutations in the keratin gene.

The fibres in feathers are almost entirely composed of keratin, a protein also found in hair and nails.
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Phylogenetic analyses show that these proteins belong to different keratin lineages that originated in an early tetrapod ancestor and in mammals evolved to become the major keratin types of hair.
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When heated in the absence of oxygen (a process called pyrolysis), keratin forms hollow tubular structures six millionths of a metre across and riddled with microscopic pores, much like carbon nanotubes.
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