Nanosystems for drug delivery

Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey Abstract Introduction Over the last couple of decades, the area of drug delivery has become important for its possible gaining in the pharmaceutical industry. Studies show that drug delivery systems which are developed by nanotechnology offer the opportunity to achieve more efficient drugs and to minimise side effects. The aim of this present article is to overview nanocarrier systems and point to their contributions to drug delivery systems. Pharmaceutical nanocarrier systems offer us plenty of possible solutions for drug delivery difficulties and to overcome important barriers such as ocular, intestinal barriers and the blood–brain barrier. Conclusion Novel drug delivery systems can enhance important characteristics of drugs such as bioavailability and drug solubility. Pharmacokinetic and pharmacodynamic properties of drug molecules can be improved by nanotechnology. In spite of all the possible advantages of nanosystems, they have some practical problems to overcome. Nanosystems have the potential to become one of the main human health care products in the future; therefore, the pharmaceutical nanotechnology area needs more studies so that we can completely understand their characteristics.