Chitosan Properties:
-Biocompatibility:
Chitin and chitosan are natural biopolymers. They have no antigenicproperties, and thus are perfectly compatible with living tissue. Their antithrombogenic and hemostatic properties make them very suitable for use in all fields of biology.
- Cicatrizant:
Chitosan forms films that are permeable to air. It facilitates cellular regeneration while protecting tissue from microbe attack. In addition, chitosan has been found to have a biostimulant effect on the regeneration of tissue. This property has allowed it to be used in making an artificial skin for skin grafts on high degree burns and in surgical applications such as chitin suture thread.
- Anticholesterolemic agent:
Chitosan can trap lipids at their insolubilization pH in the digestive tract. Administered to rats, chitosan considerably reduces the level of cholesterol in the blood.
- Chelation agent:
Chitin and its derivatives are remarkable chelation agents. Chitosan is used for a wide range of applications: as a chromatography medium, or for trapping heavy metals, or for water treatment.
- Biodegradable:
Chitin and chitosan are biodegradable biopolymers. Enzymes - chitinase and chitosanase - break them down into oligopolymers that are then dealt with by the metabolism.
Uses of Chitosan:
-Cosmetics:
Chitin, is an excellent cosmetic product that is remarkably well tolerated by the skin. Its biological tolerance has been demonstrated for a long time. In addition, it is an efficient trapper of heavy metals that are responsible for very many contact allergies; therefore it is really interesting for skin allergies.
Chitin is a particularly effective hydrating agent. It has two advantages: it supplies water and it avoids dehydration. In addition, the great advantage of chitin and its derivatives is the lasting quality of their hydrating effect.
المادة المعروضة اعلاه هي مدخل الى المحاضرة المرفوعة بواسطة استاذ(ة) المادة . وقد تبدو لك غير متكاملة . حيث يضع استاذ المادة في بعض الاحيان فقط الجزء الاول من المحاضرة من اجل الاطلاع على ما ستقوم بتحميله لاحقا . في نظام التعليم الالكتروني نوفر هذه الخدمة لكي نبقيك على اطلاع حول محتوى الملف الذي ستقوم بتحميله .
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