Journal
INTERNATIONAL JOURNAL OF NANOMEDICINE
Volume 14, Issue -, Pages 4589-4599Publisher
DOVE MEDICAL PRESS LTD
DOI: 10.2147/IJN.S206350
Keywords
nanoencapsulation; nanosponges; cyclodextrins; ferulic acid; cytotoxicity
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Purpose: Ferulic acid (FA) is a poorly water-soluble natural antioxidant with anticancer activity. This poor solubility limits the application of FA in the food and pharmaceutical industry. Cyclodextrin nanosponges (CD-NSs) are a novel group of cross-linked CD derivatives which can be used to enhance the solubility of low-soluble bioactive compounds. Methods: In this study, FA was encapsulated into the NSs in the proportion of 1:4 (FA:NS). Diphenyl carbonate was used as a cross-linker in different proportions with beta-CD. Characterization of obtained NSs was performed using scanning electron microscopy, Xray diffraction (XRD), differential scanning calorimetry (DSC), and Fourier transform infrared (FTIR) analysis. Results: Our results revealed that the solubility of encapsulated FA was increased up to fifteenfold compared with pure FA in the proportion of 1:4 (CD:cross-linker). The results of FTIR, XRD, and DSC confirmed the interaction of FA with NSs. The cytotoxicity of encapsulated FA against MCF7 and 4T1 breast cancer cell lines was investigated using different concentrations of FA in 24, 48, and 72 hrs. The cytotoxicity assay indicated that FA treatment reduced viability and enhanced apoptosis of cancer cells. IC50 value of encapsulated FA (250 ppm) was decreased by threefold when compared with pure FA (750 ppm). Conclusion: In general, CD-NS was found to be a suitable delivery system for poorly soluble bioactives such as FA.
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