Recent advances in nanotechnology have offered a new hope for the oral and systemic delivery of the fragile therapeutic molecules. Nanotechnology has the potential to offer solutions to several of the aforementioned obstacles. The physicochemical characteristics of the materials including polymers, metals, and semiconductors offer distinct advantages for in vivo applications. Altered properties could be increased surface area, optical, electronic, magnetic and structural properties as well as quantum effects dictated by the nanometer scale that are not available from individual molecules or bulk solids. Properties such as self-assembly, stability, specificity drug encapsulation and imaging contrast of the nanoparticles have already been used clinically to provide targeted cellular/tissue delivery of chemotherapeutics, to improve drug bioavailability, to sustain drug effect in target tissue and to diagnose disease.
Source: Cancer Nanotechnology