Oxyresveratrol-Loaded Electrospun Cellulose Acetate/Poly(ε-caprolactone) Nanofibers with Enhanced Stability and Bioactivity
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Author list: Sornkaew, N.; Thuamwong, P.; Anantanasan, A.; Pratumyot, K.; Choodej, S.; Chaiseeda, K.; Srisuwannaket, C.; Mingvanish, W.; Niamnont, N.
Publisher: MDPI
Publication year: 2025
Volume number: 5
Issue number: 4
Start page: 28
ISSN: 2673-9623
eISSN: 2673-9623
Languages: English-Great Britain (EN-GB)
Abstract
Electrospun fibers serve as a medium for the targeted release of active compounds, facilitating the desired therapeutic effects in drug administration. The point of this study was to find the best conditions for making electrospun fibers from cellulose acetate (CA) and poly(ε-caprolactone) (PCL), mixed with pure oxyresveratrol extract from Artrocarpus lakoocha Roxberg (Moraceae). Additionally, the study focused on evaluating the antioxidant properties, antityrosinase activity, and freeze–thaw stability of the resulting fibers. We incorporated a concentration of oxyresveratrol at 0.1% w/w into various mass ratios of CA/PCL blended fiber sheets (1:0, 3:1, 1:1, 1:3), utilizing mixed solvents of acetone/DMF (2:1% v/v) and chloroform/DMF (9:1% v/v) for preparation. The fiber sheets displayed a continuous and uniform structure, with fiber diameters ranging from 300 to 1000 nanometers. We investigated the release kinetics of oxyresveratrol from the fibrous substrates using the total immersion technique, specifically in phosphate-buffered saline at a pH of 7.4. The results showed that the fiber sheet with a 3:1 w/w ratio of CA to PCL and a 0.1 w/w loading of oxyresveratrol showed the most significant release of oxyresveratrol at the 2 h mark, and it continued to release consistently at this peak value for up to 24 h. The antioxidant and anti-tyrosinase properties of oxyresveratrol in fiber sheets were more stable than those of free oxyresveratrol at the same concentrations. The fiber sheet presents a promising avenue for a user-friendly transdermal patch application. © 2025 by the authors.
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