Bioadhesion studies were carried out to understand the nature of mucoadhesion. Our results were validated by the significant increase in SCN nanoparticles ex vivo (31.5 ± 0.25 hours). This was due to the electrostatic bond between the nanoparticles and glycoprotein in mucin. The primary reaction observed was between the hydrogen bond, the electrostatic attraction of the nanoparticles, and the hydrogen atoms of mucin, thus resulting in strong adhesive forces among the nanoparticles. This mucoadhesion formed the basis for the systematic release of SCN from the nanoparticles into the GIT. SCN bursts directly from the intestinal mucosa in rats in the control group due to the absence of adhesiveness.Different from our earlier study, the profiles of the SCN drug release formulations in vitro were assessed while maintaining the different solutions at pH levels of 1.2 and 6.8 for 2 hours and 12 hours at 37°C, which are similar to the pH levels of the stomach and small intestine, respectively (Figure 4). There was an initial burst in the first hour due to the desorption of SCN at the top of the chitosan nanoparticles, followed by a delay in drug release. The amount of SCN released was found to be around 45.1% at 2 hours (pH 1.2), showing that the SCN was loaded deep inside the nanoparticles, facilitating the release of SCN into the stomach while fasting. Therefore, an initial burst favors the maintenance of a constant concentration of the therapeutic drug at pH 1.2. At pH 6.8, the release of SCN was 98.1% over the next 12 hours. These results revealed the systematic and perfect release of SCN nanoparticles.