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FP5

BIODAM Report Summary

Project ID: EVK4-CT-2002-00098
Funded under: FP5-EESD
Country: Germany

The development of a new generation of chemical compounds for the inhibition of biological colonisation of stone materials especially by coherent biofilms and networks

The BIODAM team has successfully approached surface damage by microbial biofilms. The biofilm builder resist to treatment by being embedded in protective slime and pigment layers. Biocide treatment is less and less favoured by conservators and restorers.

Official agencies and offices turn increasingly away from industrial microbicidal products offered on the market. BIODAM aimed at minimizing the numbers and amounts (concentrations) of biocidal substances. This was achieved by successfully testing a polyphasic treatment using cell permeabilizers, photosensitizers activated by sunlight, polysaccharide (slime) inhibitors, pigment inhibitors and low amounts of traditional biocides simultaneously.

This new combined technique is very important for the further development of strategies to avoid excessive use of insecticides, herbicides and biocides on ICOMOS sites and other UNESCO protected areas and buildings.

Presently field experiments are ongoing beyond the durance of the BIODAM project with the ultimate goal to demonstrate that a combined photoactivation and cell penetration treatment will drastically reduce the amount of potentially poisonous and dangerous substances frequently in use to ban biological damage to objects of art also on a long-term scale. Historic Scotland and BIOGEMA helped by ICBM, CvO-University of Oldenburg will propagate and further develop the technique. Information can be received by these partners.

Related information

Reported by

Geomicrobiology, ICBM, University of Oldenburg
Carl von Ossietzkystr. 9-11
D-26111 Oldenburg
Germany
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