Neutron reflectivity measurements were carried out on Inter at the ISIS Pulsed Neutron and Muon source at room temperature. Mixtures of DMPC and SB3-18 were investigates on D2O and air contrast matched water, ACMW. Deuterated phospholipid and sulfobetaine were used along with hydrogenated samples. 

X-Ray reflectivity measurements were carried out on I07 at The Diamond Light Source. As above mixtures of DMPC and SB3-18  were carried out  on a water subphase at room temperature under a helium atmosphere. 

For both data sets are carried out at two surface pressures, the surface pressure in both cases is controlled by a Nima Langmuir trough.