Form-stable phase change electrospun nanofibers mat with thermal regulation and biomedical multi-functionalities

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2023-09-15
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Language
en
Pages
11
Series
Journal of Energy Storage, Volume 68
Abstract
This study aimed to introduce a smart multifunctional textile composed of a phase change material, i.e., polyethylene glycol (PEG), with a potential for thermo-regulative biomedical application. PEG was efficiently form-stabilized with polycaprolactone, and the nanofibers mats were developed by electrospinning to overcome the PEG leakage issue during the phase change process. Gelatin and curcumin were also incorporated to enable the biomedical performance of the textiles. The results revealed that the electrospun nanofibers possessed randomly oriented morphology, sufficient water absorption capability, good mechanical properties, and excellent phase change performance. The fibers' diameter varied from 220 nm to 370 nm, with a tensile strength ranging from 10 to 30 MPa. Furthermore, the fabricated mats possessed a latent heat of 61.7 J/g and reliable energy absorption-release cyclability over 100 heating-cooling cycles. The curcumin-loaded textiles revealed an initial burst release followed by a sustained release over one week. They further presented a significant antioxidant activity of 81.23.7 ± 3.08 % after 24 h, introducing a great potential application as a biomedical dressing to diminish inflammation with a cooling effect.
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The authors would like to acknowledge financial support from Business Finland (7428/31/2022, PCMI project), the Academy of Finland; No. 343192 (SoMa), No. 327248 (ValueBiomat), and No. 327865 (Bioeconomy). The authors would also like to acknowledge the effort made by Dr. Ari Kankkunen on IR camera measurement.
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Baniasadi, H, Madani, M, Seppälä, J, Zimmerman, J B & Yazdani, R 2023, ' Form-stable phase change electrospun nanofibers mat with thermal regulation and biomedical multi-functionalities ', Journal of Energy Storage, vol. 68, 107660 . https://doi.org/10.1016/j.est.2023.107660