2.1. Formulation of the SCN NanoparticlesA total of 1,000 mg each of SCN and chitosan were taken and combined in 250 mL of deionized water. The solutions were made to a pH level of 5; acetic acid (0.25% [v/v]) was used to prepare the solution for spray drying. The spray-dried nanoparticles were developed using a spray dryer in a laboratory setting (Buchi B-90, Labortechnik AG, Flawil, Switzerland). The process set at an inlet temperature of 100°C with a rate of aspiration of 100%, a spray flow rate of 160 L/hour, and the pump was adjusted to 2.5 mL/minute. These balanced the outlet temperature of 35°C. A collecting vessel was used to collect the dried powders and the yield rate was recorded. All experiments were performed in triplicate.