Disclosed is an antibacterial complex comprising a nucleic acid sequence and at least one delivery moiety, wherein: a) the nucleic acid sequence comprises the sequence of a native cellular binding site for a bacterial transcription factor and b) the delivery moiety is selected from quaternary amine compounds and bis-aminoalkanes and unsaturated derivatives thereof, wherein the amino component of the aminoalkane is an amino group forming part of a heterocyclic ring. Also disclosed is the use of said complex in the manufacture of a medicament for the treatment of a bacterial infection.
