Regarding drug delivery using NPs in vivo, gentamycin‐loaded hybrid liposomes composed of l‐α‐dimyristoylphosphatidylcholine, and polyoxyethylene (23) lauryl ether (C12(EO)23) have been shown to increase the number of dystrophin‐positive muscle fibers in a mouse model of DMD (Yukihara et al., 2011). The gene discussed is DMD; the disease is Duchenne muscular dystrophy.