Page 91 - controlled drug delievery

Marketed liposomal products
2- Virosomes

• Spherical unilamellar vesicles (150 nm) .

• Viral envelope glycoproteins: influenza virus hemagglutinin (HA) and
neuraminidase (NA) are isolated from Influenza virus envelop , purified
& combined within phospholipid bilayer membrane to form virosomes.

• Specially advantageous in vaccine delivery