A Study of certain formulations of Controlled drug delivery systems

Liposomes are now recognized as a drug delivery system that can improve the therapeutic activity and safety of a wide range of compounds, they are consisting of one or moreconcenteric spheres of lipid bilayers separated by water oraqueous buffer compartments. These lipid crystals or concentricsphere bilayers can be formed from many different phospholipids with or without cholesterol and may include positive or negative charge inducing agent like stearylamine or dicety . lphosphate