... cationic lipid DOTMA with a co-lipid DOPE), and a cationic peptide (1) (comprising a K 16 domain ... NMR spectra were recorded on a Bruker AMX300 spectrometer; chemical shifts (δ) are reported in parts per million ... 3.40 (2H, t, J = 6.8 Hz, BrCH 2 (CH 2 ) 5 ), 3.63 (2H, t, J = 6.6 Hz ...