Nanotechnology Based Drug Delivery System and its Applications

Nowadays, nanotechnology is considered as one of the most wide spread field of science with its important application in different fields as health, biology, chemistry, etc. in this review article we will discuss applications of nanotechnology in the field of health care, different used techniques and some examples.Nanotechnology, in a blink.The definition of nanotechnology is typically stated in Bhushan (2010) "Nanotechnology literally means any technology on a nanoscale that has applications in the real world.Nanotechnology encompasses the production and application of physical, chemical, and biological systems at scales ranging from individual atoms or molecules to submicron dimensions, as well as the integration o the resulting nanostructures into larger system."Applications of nanotechnology are very wide and can be found in many fields as biology, chemistry, physics, agriculture, medicine and engineering.Because the field of nanotechnology depends mainly on manipulating and controlling molecules in the atomic level, the field of nanoscience starts to thrive by the invention of the microscope that can magnify molecules and atoms almost 30 years ago. Historical point of viewThe American physicist Richard Feynman , was the first scientist who pointed out to nanotechnology and nanoscience in his memorial talk "There's Plenty of Room at the Bottom" in American Physical Society meeting at the California Institute of Technology (CalTech) on December 29, 1959.His talk was published in 1960.In Richard Feynman (1960) talk, he discussed a process where scientists can control materials in the atomic level. Application of nanotechnology in healthcareNowadays, all scientists are trying to apply the field of nanotechnology to promote the health status of human being.Nanomedicine is considered as the nanotwchnology application in the field of healthcare.By some techniques they try to improve the behavior and solubility of drug substance and targeting drug material to the site of action in order to minimize possible side effects.So, nanomedicines can assure that the desired quantity of active pharmaceutical ingredient enters the body and react in the specific site of action.