大珠母贝珍珠层的结构色是由文石板片和蛋白质层构成的多层薄膜结构和黄色素的共同作用决定的。

The structural color of nacre in bivalve shells of Pinctada maxima is derived from the combination effects of aragonite-protein multilayer structure and yellow pigments in nacre.

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当蛋白质结构层密度足够防止细胞渗透进人造血管时，研究人员会在其表面覆盖一层纤维原细胞片。

Then the researchers layered another sheet of fibroblasts on the outside of this scaffold, which is dense enough to prevent the cells from easily migrating to the inside of the engineered vessel.

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人类的角膜是透明的，但它只是薄薄一层由蛋白质与糖类构成的胶状结构，而非细胞构成的组织。

In humans the cornea is clear, but it is more a thin, gelatinous layer of proteins and sugars than true cellular tissue.

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I mentioned a little bit that this membrane is not just lipid bilayer but there's also proteins that are inserted into the membrane.

我之前说过,这层膜不仅仅是一层脂质双分子层,而是有很多蛋白质嵌插在膜上的

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So they like to be in the membrane and they're stable there and they won't come out because their structure allows them to exist in these unique spaces.

所以它们在膜里稳定存在,而且也不会脱离膜,因为这些蛋白质的结构使其能存在于,磷脂双分子层这个独特的环境中

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