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Catechol-Functionalized Succinyl Chitosan for Novel Mucoadhesive Drug Delivery
Abstract:
The objective of this research was to synthesized and evaluated a mucoadhesive catechol-bearing succinyl chitosan (Cat-SCS) as an innovative mucoadhesive substance for a mucoadhesive drug delivery system. Succinyl chitosan (SCS) was synthesized via ring-opening reactions with succinic anhydride. The Cat-SCS was then synthesized by reacting SCS with dopamine with the existence of N-(3-Dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (EDAC) and N-hydroxysulfosuccinimide (NHS). The successful functionalization of catechol onto chitosan backbone was verified using nuclear magnetic resonance spectroscopy (NMR) and Fourier transform infrared spectroscopy (FT-IR). Mucoadhesion studies were performed using rheology measurement and ex-vivo mucoadhesion test. The findings exposed that the synthesized Cat-SCS exhibited excellent mucoadhesive properties which was better than the intact CS. Further indirect studies verified the occurrence of polymer-mucin glycoproteins interactions. The catechol content of catechol moiety on the Cat-SCS was determined to be 0.377 using the 1H NMR. The cytotoxicity test indicated the biocompatibility of the obtained polymer on human gingival fibroblast cells (HGF cells). Therefore, these results could advocate the capacity to use of Cat-SCS as an innovative mucoadhesive platform for mucoadhesive drug delivery.
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Periodical:
Pages:
21-26
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Online since:
August 2019
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