chitin
几丁质,甲壳素,几丁质素,壳素
Definitions
- 1
Biochemistry.
- : a nitrogen-containing polysaccharide, related chemically to cellulose, that forms a semitransparent horny substance and is a principal constituent of the exoskeleton, or outer covering, of insects, crustaceans, and arachnids.
Examples
Since chitin excels at fighting germs, Zhou’s team suspects the new dressing also would cut the risk of infections.
To test how much acetylation in the fiber’s chitin worked best, the researchers used 18 rats.
He’d like to see the chitin dressings tested on bigger sores, however, or ones that are harder to heal.
Dressings made from chitin with 71 percent of acetylated glucose worked best of all.
The best-performing chitin gauze sped the growth of new skin cells and blood vessels.
From end to end of the tube is a fine thread of chitin twisted in a close spiral like a spring.
You see, the chitin acts both as armor-plate for the soft parts and also as a firm support to the many muscles.
If, then, this tissue of Pteraspis is not to be looked upon as chitin, how can we imagine its formation?
This layer is easily dissolved in a solution of hypochlorite of soda, a fluid which dissolves chitin.
This cuticle is very much thicker than is usually found in vertebrates, and, strangely enough, has been thought to contain chitin.