Abstract: The invention relates to an antimicrobial surface, in particular a surface functionalised with a peptide comprising an antimicrobial moiety. The invention comprises a surface functionalised with a peptide comprising an antimicrobial moiety and a binder moiety, wherein the peptide is immobilized on the surface by electrostatic interactions between the binder moiety and the surface. Further provided is a medical device, a peptide and a method for the immobilization of a peptide.

Abstract: The invention relates to an antimicrobial surface, in particular a surface functionalised with a peptide comprising an antimicrobial moiety. The invention comprises a surface functionalised with a peptide comprising an antimicrobial moiety and a binder moiety, wherein the peptide is immobilized on the surface by electrostatic interactions between the binder moiety and the surface. Further provided is a medical device, a peptide and a method for the immobilization of a peptide.

Abstract: Method of extracting dinitrogen pentoxide (N.sub.2 O.sub.5) from its mixture in nitric acid, which consists of providing a solution of the mixture in an inert organic solvent, stripping out the N.sub.2 O.sub.5 from solution in a carrier gas stream containing ozone, and subsequently condensing the N.sub.2 O.sub.5 out of the gas stream by contact with further inert organic solvent. The presence of ozone suppresses the dissociation of the N.sub.2 O.sub.5 transferred to the gas stream into dinitrogen tetroxide (N.sub.2 O.sub.4). In a preferred embodiment the stripping and absorbing steps take place continuously in adjacent stripping and absorbing columns respectively having organic solvent recirculating through each.