The present study aimed to understand the killing effects of seaweed derived metabolite Callophycin A (Cal A). In vitro studies confirmed that the beneficial effects of Cal A on the viability of C. albicans. To enhance the biological activity, we used to demonstrated that chitosan and spicules as a drug carrier. The Callophycin A loading was confirmed by spectral variation of FT-IR and morphological variation by SEM. Moreover, around 65% and 38% of Cal A was successfully loaded in chitosan and spicules respectively. Further, VVC induced animal model experiments confirmed that the candidicidal activity of 1% clotrimazole, Cal A, Cal@Chi and Cal@Spi. After 6 days of treatment Cal@Chi produces a significant reduction in the fungal burden of vaginal lavage. The histo-morphological alterations also evidenced that the protective role of Cal@Chi in VVC model. The present investigations are known to be the first and foremost study to discriminate the potentiality of Cal A composites. Cal A loaded chitosan nanoparticles could be used as an alternative strategy for the development of the novel marine natural product based topical applications.
