Improvements in or relating to diagnostic/therapeutic agents

摘要

Novel membrane-forming amphiphilic lipopeptides comprising one or more peptide moieties containing 2-50 aminoacyl residues and one or more hydrocarbon chains containing 5-50 carbon atoms. Such lipopeptides may be used in the formation of stabilised gas microbubble dispersions suitable for use as diagnostic and/or therapeutic agents, for example as ultrasound contrast agents.