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Biofilms are communities of micro-organisms that stick to each other and to surfaces. They form in aqueous environments when free-floating micro-organisms attach and adhere to surfaces in response to cues in the environment such as changes in pH and nutrient concentration. The biofilm matures as attached micro-organisms multiply, colonising the surface and recruiting new members which are embedded in self-secreted extracellular polymeric substance (EPS), a sticky slime-like material consisting of DNA, polysaccharides, and proteins, forming a structured 3D matrix.

The August 2003 issue of Microbiology Today focuses on biodeterioration and biodegradation. Microbes can break down a great range of materials and often their action is unwanted, unsightly and uneconomic.

The study of biofilm considers the close association of micro-organisms with each other at interfaces and the consequent physiological adaptation to the proximity of other cells and surfaces. This volume aims to distil the common principles of biofilm physiology and growth for all interested disciplines. It will appeal to the specialist biofilm researcher as well as to students wishing to introduce themselves to the topic.