SORU: aşağıdaki parçaya göre cevaplayınız
We understand from the passage that a great deal of research has been carried out to ---- .
In the search to heal wounds without leaving a
scar, researchers have looked at some 3,000
treatments. Many of these treatments have not
lived up to expectations, and none can induce
repair that leaves the skin in pristine condition.
Now US and British scientists have come up
with three different recipes for advanced
bandages that give the repair of injured skin a
quick start, but then break down, leaving
behind only healed tissue. This type of
bandage eliminates the need to change
dressings, cuts the risk of infection and
sometimes makes scariess healing possible.
When skin is injured, the weave-like structure
of collagen fibres is destroyed. To minimize
blood loss and infection, the body produces a
quick fix by using cells, called fibroblasts,
which lay down thin linear strips of
replacement collagen. When skin cells grow on
the replacement collagen, they produce pale,
less flexible material. Avoiding this scar tissue
means getting the body to rebuild the complex
fibrous structure of the original.