Biofilm

What is a Biofilm?

A biofilm is like a tiny city made by very small living things called microorganisms. These tiny creatures stick together and to a surface, like a rock or even your teeth. They make a slimy covering around themselves from things they produce, such as polysaccharides, proteins, and DNA. This slimy city helps them share food and stay safe.

Where Can You Find Biofilms?

Biofilms can live almost anywhere! You can find them in nature, like on rocks in a stream or in hot springs. They also live in factories and hospitals. In your own body, biofilms can form as dental plaque on your teeth. If you don’t brush well, this plaque can sometimes cause tooth decay. Biofilms are very tough and can survive in very hot or cold places.

Why Are Biofilms Important?

Biofilms are important because they help clean water in treatment plants. They trap and break down harmful substances, making the water safer. However, they can also cause problems. For example, when biofilms form on medical devices, they can make infections harder to treat. Scientists are always learning more about biofilms to find ways to stop the bad ones and use the good ones to help us.