“…An important condition for successful fusion-initiated reactions is to stimulate the vesicles in order to obtain an effective fusion event since vesicle fusion is inefficient in the absence of external stimuli. Fusion can be induced artificially by means of membrane stress (Cohen et al, 1982;Shillcock et al, 2005), ions or organic reagents (Estes et al, 2006;Neil et al, 1993;Lentz, 2007;Haluska et al, 2006;Kunishima et al, 2006), DNA (Stengel et al, 2007), proteins (Jahn et al, 2006;Peters et al, 1999 and summary by Walde et al, 2001), laser beams (Steubing et al, 1991;Weber et al, 1992;Kulin et al, 2003) or electric fields (Strömberg et al, 2000). The last one is termed electrofusion.…”