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Photodynamic treatment device for destroying deteriorating microorganisms

The prototype of a portable photodynamic treatment for rock biofilms in situ was developed at the laboratory of environmental biotechnology.

In further experimentation the group focussed experimentally on rose of Bengal, Nuclear fast red and methylen blue as accelerators of cell penetration and destruction. Initially it was considered that a portable light excitation device would be necessary to activate the photodynamic treatments.

However, early screening studies demonstrated that the PDTs were sufficiently activated under natural light. In terms of the field studies the treated surfaces were all going to be exposed to natural light. It was decided that there would not be any need for the portable device.

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Clarke Buildin, Schoolhill
United Kingdom
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