Electrospun Polycaprolactone/Polyvinylidene Fluoride Composite Nanofibers for Fabricating Artificial Conduits for Ureteral Stricture Treatment

Lee, Jeong Chan; In, Soo Hwan; Lee, Jun Hee; Park, Chan Hee; Kim, Cheol Sang

doi:10.1021/acsanm.3c03716

ACS Appl. Nano Mater.

2023

DOI: 10.1021/acsanm.3c03716

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Electrospun Polycaprolactone/Polyvinylidene Fluoride Composite Nanofibers for Fabricating Artificial Conduits for Ureteral Stricture Treatment

Jeong Chan Lee,

Soo Hwan In,

Jun Hee Lee

et al.

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2024

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Cited by 2 publications

References 46 publications

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Synthesis and Viscoelastic Properties of Polycaprolactone/Polyvinylidene Fluoride/Nanohydroxyapatite Composite Scaffolds

Yeganeh Kari,

Nezhadfard,

Montazeri

et al. 2024

Macro Materials & Eng

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Obtaining a polymer nanocomposite with optimum viscoelastic, thermal, and biocompatibility properties is the main objective when designing nanocomposite systems with potential applications in tissue engineering. For this purpose, a blend of Polycaprolactone (PCL) and Polyvinylidene fluoride (PVDF) in an 85/15 weight ratio, along with a nanocomposite reinforced by nanohydroxyapatite (nHA) particles, is fabricated using a solution casting method in a mold. The impact of nHA content on crystallinity, viscoelastic properties, thermal stability, and the properties–structure relationship of nanocomposites is evaluated using scanning electron microscopy (SEM). Dynamic mechanical thermal (DMTA) analysis is used to determine the William–Landel–Ferry (WLF) constants and the effect of nHA on the nanocomposite's viscoelastic behavior. The PCL/15PVDF/0.5 wt% nHA exhibits the maximum thermal stability (40% residual char value) and 95% increase in storage modulus at 90 °C (rubbery region) in comparison with PCL/15PVDF blend. Water contact angle (WCA) and biocompatibility tests are conducted on the PCL/15PVDF blend and nanocomposite scaffolds to design appropriate nanocomposite systems with potential applications in tissue engineering. The high hydrophilic properties are assigned to PCL/15PVDF/0.5 wt% nHA with a WCA of 67.5°. Finally, in vitro cell culture confirmed 0.5 wt% nHA significantly improves cell adhesion and cytotoxicity with MG‐63 cells.

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Synthesis and Viscoelastic Properties of Polycaprolactone/Polyvinylidene Fluoride/Nanohydroxyapatite Composite Scaffolds

Yeganeh Kari,

Nezhadfard,

Montazeri

et al. 2024

Macro Materials & Eng

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Ingenious Structure Engineering to Enhance Piezoelectricity in Poly(vinylidene fluoride) for Biomedical Applications

Cui,

Du,

Meng

et al. 2024

Biomacromolecules

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The future development of wearable/implantable sensing and medical devices relies on substrates with excellent flexibility, stability, biocompatibility, and self-powered capabilities. Enhancing the energy efficiency and convenience is crucial, and converting external mechanical energy into electrical energy is a promising strategy for long-term advancement. Poly(vinylidene fluoride) (PVDF), known for its piezoelectricity, is an outstanding representative of an electroactive polymer. Ingeniously designed PVDF-based polymers have been fabricated as piezoelectric devices for various applications. Notably, the piezoelectric performance of PVDF-based platforms is determined by their structural characteristics at different scales. This Review highlights how researchers can strategically engineer structures on microscopic, mesoscopic, and macroscopic scales. We discuss advanced research on PVDF-based piezoelectric platforms with diverse structural designs in biomedical sensing, disease diagnosis, and treatment. Ultimately, we try to give perspectives for future development trends of PVDF-based piezoelectric platforms in biomedicine, providing valuable insights for further research.

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Electrospun Polycaprolactone/Polyvinylidene Fluoride Composite Nanofibers for Fabricating Artificial Conduits for Ureteral Stricture Treatment

Cited by 2 publications

References 46 publications

Synthesis and Viscoelastic Properties of Polycaprolactone/Polyvinylidene Fluoride/Nanohydroxyapatite Composite Scaffolds

Synthesis and Viscoelastic Properties of Polycaprolactone/Polyvinylidene Fluoride/Nanohydroxyapatite Composite Scaffolds

Ingenious Structure Engineering to Enhance Piezoelectricity in Poly(vinylidene fluoride) for Biomedical Applications

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