Ebrahim Zahrabi - Faculty of electrical and computer science, Micro system fabrication lab, University of- Tabriz (Iran)
Hadi veladi - Faculty of electrical and computer science, Micro system fabrication lab, University of- Tabriz (Iran)
Iman Mokari Bolhasan - Faculty of electrical and computer science, Micro system fabrication lab, University of- Tabriz (Iran)
Rashid Hosseinzadeh - Faculty of electrical and computer science, Micro system fabrication lab, University of- Tabriz (Iran)

In this paper, liposomes as drug carriers in medicine applications have been considered. A liposome is a spherical vesicle having one or several phospholipid bilayer. The increasing interest in the use of these systems is because liposomes can carry and encapsulate particles that they have a hydrophilic or water-loving end and hydrophobic or water-fearing end. Liposomes characterize a novel system to deliver molecules to the site of action Advanced experiments shows that the drugs are encapsulated within liposomes, are more than hundred times more active compared to either of the free drugs.In addition, gene therapy which uses liposomes for gene delivery as a novel field of treatment of disease is known classification of liposomes based on their preparation, size, and applications is presented

Liposomes, Hydrophilic, Hydrophobic, Drug delivery, PH-Sensitive liposomes