In recent years, nanoparticles have received a
growing attention as a delivery system of different
bioactive molecules. Nanoparticles are solid colloidal
particles ranging in size from 1 to 1,000 nm. They can
be used to entrap, encapsulate or absorb active agents
(drugs or other biologically active agents) [6]. These
particles can be prepared from a variety of natural and
synthetic materials, such as proteins, polysaccharides,
and synthetic polymers. Although various biodegradable
nanoparticles of natural polymers, such as
starch, chitosan, liposomes, etc. are largely in use as
drug carriers, gelatin nanoparticles (GNP) represent a
promising carrier system for controlled drug delivery
technology [7].