The negative charge of bacteria causes them to be drawn to and get trapped on the positive charge of the Appeartex modification, just as iron chips are drawn to a magnet. The bacteria are thereby stuck on the Appeartex surface and are held there by the permanent Appeartex charge on the surface. The entrapment of the bacteria also renders them incapable of multiplying.

Since the bacteria cannot escape the surface, they are unable to spread to or contaminate the surroundings. In this way, the bacteria are controlled by charge and we do not have to use bad chemicals or antibiotics that may cause the bacteria to develop resistance besides polluting the environment.