ABSTRACT
Bionanotechnology is a new field based on chemistry, physics, and molecular biology. It is largely
concerned with the development of nanoscale bioassemblies that do not occur in nature. The assemblies
produced in this field form devices that are under 100 nm in their largest dimension, monodisperse, and
soluble in aqueous media. Although chemical conjugation can be used in the assembly of several
components into a device, naturally occurring biospecificities are often helpful in that they permit
self-assembly. Several of these new technologies afford novel approaches to drug design and delivery. An
essential component of this third generation of drugs [1] is their capacity for selective targeting.
