The Problem

What is a Biofilm?

Biofilms are produced by microorganisms and consist of a sticky rigid structure of polysaccharides and other organic contaminants. This slime layer is anchored firmly to a surface and provides a protective environment in which Over 99% of pathogens in the natural environment reside in biofilm

Over 99% of pathogens in the natural environment reside in biofilm

microorganisms grow. Biofilms generally form on any surface that is exposed to non-sterile water or other liquids and is consequently found in many environmental, industrial and medical systems. Studies have shown that it can take over 1,000 times the dose of routine biocides to kill microorganisms in biofilms compared to free-swimming (planktonic) microorganisms.

Biofilm removed from Dental Unit Waterline

Evidence of a Biofilm Problem

Over 99% of pathogens in the natural environment reside in biofilm. Studies have shown that routine biocides such as chlorine, quats, peracetic acid, chlorine dioxide, and other oxidizers are ineffective against bacteria that live in biofilm. These dangerous bacteria will inevitably form biofilms and become resistant to conventional treatment methods

These dangerous bacteria will inevitably form biofilms and become resistant to conventional treatment methods

While these agents may be able to kill free-swimming pathogens, these dangerous bacteria will inevitably form biofilms and become resistant to conventional treatment methods.

Evidence of a Biofilm Problem

Difficult to control contamination problems

Spikes in microbial counts

Decreased shelf life

Reduction of heat transfer or impairment of detection devices

Issues in the Control of Biofilm

Polymer matrix strongly adheres to surfaces

Microorganisms in biofilms express resistance (1000 times the dose of antimicrobials required)

Biofilms more likely in wet, inaccessible areas and corroded surfaces

Not sufficient to kill the organisms - must remove the reservoir