Abstract
This chapter is a brief overview of use of nanobiotechnology in drug delivery. Several types of nanoparticles are available. Nanoparticulate formulations of normally used drugs have increased efficacy due to improved absorption and require lower dosage with less side effects than standard formulations. Nanobiotechnology also facilitates targeted drug delivery of anticancer drugs, which is important for the management of cancer. Nanoparticles also facilitate crossing of biological barriers in the human body for drug delivery to targeted organs, for example, crossing the blood-brain barrier to reach the brain. Nanobiotechnology applications in delivery of biological therapies are expanding in areas such as cell and gene therapies, siRNAs, and monoclonal antibodies. Some nanoparticles can carry more than one therapeutic molecule enabling multimodal therapy and combination with physical modalities such as radiotherapy in cancer. Nanorobotics is developing with applications in drug delivery, particularly for cancer. Other anticipated developments in this area include use of nanotechnology for creating intelligent drug release devices.
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