Journal article
Nanoscale piezoelectric effect of biodegradable PLA-based composite fibers by piezoresponse force microscopy
T Zheng, Z Yue, GG Wallace, Y Du, MJ Higgins
Nanotechnology | IOP PUBLISHING LTD | Published : 2020
Abstract
The piezoelectricity of the biocompatible and biodegradable polymer polylactic acid (PLA) was investigated as a potential magnetoelectric (ME) nanocomposite for biomedical applications. A key focus was to quantify the piezoelectric properties of single PLA fibers while tuning their polymer degradability through the addition of faster degrading polymer, poly (DL-lactide-co-glycolide) (PLGA), which is not a piezoelectric polymer. Piezoresponse Force Microscopy (PFM) showed that electrospun PLA fibers gave a piezoelectric response of 186 ± 28 pm. For comparison both PLA/PLGA (75/25) and PLA/PLGA (50/50) fibers gave significantly lower piezoelectric responses of 89 ± 12 pm and 50 ± 9.1 pm, respe..
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Awarded by ARC
Funding Acknowledgements
The authors would like to acknowledge the financial support from the ARC Australian Research Fellowship (Professor Michael Higgins) and ARC DP110104359 (Professor Michael Higgins), the Australian National Fabrication Facility (ANFF)-Materials Node, and ARC Centre of Excellence for Electromaterials Science (ACES), University of Wollongong.