| abstract |
The invention relates to a filtration device1comprising at least one active layer 2 and at least one antimicrobial composite3. The invention further concerns a method for producing a filtration device and filter systems comprising at least two substrates or components. The filtration device 1 may comprise two substrates, substrate A being provided with a chemically functionalized graphene or graphene oxide layer (active layer 2) and substrate B being coated with an antimicrobial composite 3 comprising silver and ruthenium ("AGXX"). The active layer 2 comprises graphene or graphene oxide functionalized by ionic groups so that it can attract microorganisms 4 and endotoxins (Step I), which are then captured and bound by the active layer 2 (Step II). The antimicrobial composite 3 produces and releases reactive oxygen species ("ROS") which kill microorganisms present in the surroundings (Step III). As the cell structure of the microorganisms is destroyed during the killing process, the cell debris is at least in part removed from the active layer 2 (Step IV). |