Therapeutic drug delivery systems using polymeric materials is an emergingfield ofresearch. However, the use of certain polymers has gained much-needed attentionby the researchers due to their low toxic nature. In recent years, chitosan has gainedpopularity as a potential biodegradable polymer that can be used as a component indrug delivery systems. In this study, we synthesized a chitosan derivative that iscomposed of both folic acid and zinc and may serve as a viable component of adrug delivery system. The results of Fourier Transform Infrared Spectroscopy(FTIR), solid-state13C Nuclear Magnetic Resonance Spectroscopy (NMR) andUV-visible Spectroscopy demonstrated a substantial difference between chitosanand ZnS/Chitosan-Folic acid derivative. The results were also confirmed usingThermogravimetric Analysis (TGA) and Scanning Electron Microscopy/EnergyDispersive X-ray Spectroscopy (SEM-EDS) techniques. The average particle sizeof the ZnS/Chitosan-Folic acid system was measured to be 463.67
5.76 nm,showing that the product is within the nano-size range.