______ in the brush border and cytosol of the enterocyte are potentially the most important barrier to the adsorption of small biologically active peptides across the intestinal mucosa.

Nanobiotechnology, bionanotechnology, and nanobiology are terms that refer to the intersection of nanotechnology and biology. Given that the subject is one that has only emerged very recently, bionanotechnology and nanobiotechnology serve as blanket terms for various related technologies.

Example of Nano Biotechnology: Nanoparticles can serve as probes, sensors or vehicles for biomolecule delivery in cellular systems.