Mokhtari, Fatemeh and Nam, Hui Yin and Ruhparwar, Arjang and Raad, Raad and Razal, Joselito M. and Varley, Russell J. and Wang, Chun H. and Foroughi, Javad (2024) Highly stretchable nanocomposite piezofibers: a step forward into practical applications in biomedical devices. Journal of Materials Chemistry B, 12 (38). pp. 9727-9739. ISSN 2050-750X, DOI https://doi.org/10.1039/d4tb01630k.
Full text not available from this repository.Abstract
High-performance biocompatible composite materials are gaining attention for their potential in various fields such as neural tissue scaffolds, bio-implantable devices, energy harvesting, and biomechanical sensors. However, these devices currently face limitations in miniaturization, finite battery lifetimes, fabrication complexity, and rigidity. Hence, there is an urgent need for smart and self-powering soft devices that are easily deployable under physiological conditions. Herein, we present a straightforward and efficient fabrication technique for creating flexible/stretchable fiber-based piezoelectric structures using a hybrid nanocomposite of polyvinylidene fluoride (PVDF), reduced graphene oxide (rGO), and barium-titanium oxide (BT). These nanocomposite fibers are capable of converting biomechanical stimuli into electrical signals across various structural designs (knit, braid, woven, and coil). It was found that a stretchable configuration with higher output voltage (4 V) and a power density (87 mu W cm-3) was obtained using nanocomposite coiled fibers or knitted fibers, which are ideal candidates for real-time monitoring of physiological signals. These structures are being proposed for practical transition to the development of the next generation of fiber-based biomedical devices. The cytotoxicity and cytocompatibility of nanocomposite fibers were tested on human mesenchymal stromal cells. The obtained results suggest that the developed fibers can be utilized for smart scaffolds and bio-implantable devices. Develop stretchable piezoelectric structures using biocompatible materials that convert biomechanical energy into electrical energy, ideal for wearable motion sensors, bio-implanted devices, and intelligent scaffolds for tissue and nerve stimulation.
| Item Type: | Article |
|---|---|
| Funders: | Deakin University through Alfred Deakin Postdoctoral Research Fellowship (2022), University Malaya Impact Oriented Interdisciplinary Research Grant (IIRG002-2022FNW), Hannover Medical School through the Department of Cardiothoracic, Transplantation, and Vascular Surgery |
| Subjects: | R Medicine > R Medicine (General) T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Medicine > Orthopaedic Surgery Department |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 09 Apr 2025 07:04 |
| Last Modified: | 09 Apr 2025 07:04 |
| URI: | http://eprints.um.edu.my/id/eprint/46601 |
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