Figure 3.

Colloidal stability and size distribution of DPPC vesicles as a function of Ag-decanethiol nanoparticle loading and storage temperature. The stability of DPPC/AgNP vesicles prepared at 30 mM DPPC in PBS is shown after 15 days at storage temperatures below (top a, 25°C) or above (top b, 50°C) the main phase transition temperature. From left to right, the samples correspond to the control, 200:1, 100:1, and 40:1 DPPC/AgNP (w/w). Size distributions determined by dynamic light scattering (DLS) are shown for the corresponding conditions (bottom).