বৃহস্পতিবার, ২২ আগস্ট, ২০১৩

Artificial Skin



Artificial Skin: After taking out burnt / spoiled skin, surgeons covered the injury with a covering called artificial skin.
                                 
      
Ø  Skin grafting is the procedure of replacing dead skin with live skin.
Ø  There are two primary methods of skin grafting
1.      Autologous skin graft &
2.      Allograft transfer
Ø  The Autologous skin graft transfers skin from one part of the body to another part. The allograft transfers skin from the body of other people/cadaver.
Ø  Allograft cover only temporary cover, as they are quickly rejected by a person’s immune system.
Ø  The artificial skin is used in the skin grafting process.
Product characteristics:
Artificial skin consists of two layers.
1.      Bottom layer: It is made in such a way that it can regenerate the lower layer of real skin. The ingredients of bottom layer made a matrix of interwoven bovine collagen (a fibrous cow protein) and a sticky carbohydrate molecule called glycosaminoglycan , which imitate the fibrous pattern of the bottom layer of skin.

2.      Upper layer: The upper layer is mainly a medical-grade, flexible silicon piece that imitate the top, epidermal layer of skin. The commercial name one of the artificial skin graft is Integra® & it looks some what like translucent plastic wrap.


Raw materials:
Chitin is used to manufacture the artificial skin.

Technology used:
Nonwoven

Some manufacturer:
1.      1. Human Bio Sciences Incorporated (India)
2.      2. Delhi Dressing And Surgicals (India)
3.      3. Intercytex Ltd. (UK)