Abstract
Nanocarriers are relatively new but rapidly developing nowadays for targeted delivery of drugs at the infected site without infecting the normal cells thereby reducing the dose frequency and side effects. Different types of nanocarriers like liposomes, polymeric micelles, dendrimers, polymeric nanoparticles delivery the drug in a controllable manner. Inorganic nanoparticles like gold and silver nanoparticles, magnetic nanoparticles are used as diagnostic tools for the detection of disease and drug delivery. Detailed knowledge on disease pathophysiology is essential for selecting and designing a suitable carrier system that can deliver therapeutic doses of medicine to the target tissue and cure the disease. Site specificity is the major therapeutic benefit since it prevents drugs from being delivered to the wrong places. Nanocarriers show promise for use in chemotherapy because they can help decrease the adverse, broader scale toxicity of chemotherapy on healthy, fast-growing cells around the body. The present review mainly focuses on the types and significance of nanocarriers that deliver the drug to their target tissue for controlled drug delivery.