When you have a cut, are you tempted to peek under the bandage? Rather than following that urge and letting bacteria and germs creep in, there may be a better method to monitor a cut’s status. Scientists have discovered a way for you to know whether a wound is infected or not, without removing the bandage.
At the Fraunhofer Research Institution for Modular Solid State Technologies EMFT in Munich, scientists have developed a way for adhesive bandages to change color once the presence of an infection is detected. Since the pH level of skin is higher when it is infected, an indicator dye turns a shade of purple when the skin reaches a pH value of 6.5 to 8.5 (healthy skin has a pH around 5). That way you know when the bandage turns purple, it’s time to clean up the wound and redress it.
What do you think? Are you interested in buying bandages that change color to indicate an infection? Or will you stick with the neutral color tones? Or does the whole topic of germ-infested band-aids gross you out?
Image Credit: Fraunhofer EMFT