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NTA: Applications in drug delivery

April 8, 2016

It is well established that the use of nanotechnology in medicine and more specifically drug delivery is spreading rapidly. Driven by the diminishing rate of discovery of new biologically active compounds that can be exploited therapeutically to treat disease and with fewer new drugs entering the market every year, interest in the use of nanoparticle’s versatile and multifunctional structures for the delivery of existing drugs has grown rapidly. Nanoparticles offer better pharmacokinetic properties, controlled and sustained release, and targeting of specific cells, tissues or organs such (e.g. in new ways in which to cross the blood-brain barrier). All these features can improve the efficacy of existing drugs (Malam et al., 2011). Nanoparticles in this context have been defined as colloidal systems of submicron size that can be constructed from a large variety of materials in a large variety of compositions. Commonly defined nanoparticle vectors include: liposomes, micelles, dendrimers, solid lipid nanoparticles, metallic nanoparticles, semiconductor nanoparticles and polymeric nanoparticles. Therefore, nanoparticles have been extensively employed to deliver drugs, genes, vaccines and diagnostics into specific cells/tissues (Ram et al., 2011).

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