Researchers at the Fraunhofer Research Institute, Germany, to make bandages that can change color to indicate the condition of the wound bandage. If the bandage changed to the color purple, wound infection underneath.
The bandage was physically no different from ordinary bandages, only containing a special fluid that reacts to the level of acidity. Healthy skin or skin that is formed after injury has healed acidity (pH) 5 to 6. According to Gizmag web site, the level of acidity is more than that indicates an infection. "When the pH level of 6.5 to 8.5, dressings changed color was purple," said Dr. Sabine Trupp, who led the study.
The bandage will be tested in a dermatology clinic in Germany. Next, the researchers want to embed an optical sensor on the bandage so the bandage does not only serve to measure the level of acidity, but also displays the analysis results on the screen. "We hope that accurate data can be obtained about injuries,"explained the researchers.
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