Development of nanoparticles and microspheres can overcome
these drawbacks. These nanoparticles possessing diameter less
than 1 mm, which drug can be encapsulated which lead to increase
drug efficiency, improve protection of drug from in vivo enzymatic
degradation, extended biological effect, controlled release of
drug and enhanced patient acceptability4
. Holpuch et al.5
explained the possibility of using nanoparticle formulations for
oral local mucosal delivery. This study was carried out on human
oral mucosal and the results showed that nanoparticles with size
of nearly 200 nm can easily penetrate through the epithelium and
basement membrane into the underlying connective tissue
indicating the capability of transmucosal nanoparticles for
systemic delivery of therapeutic ingredients.