fig3
![Biocompatible composite thin-film wearable piezoelectric pressure sensor for monitoring of physiological and muscle motions](https://image.oaes.cc/81958e4d-4f03-4fe9-8eec-8e042f340929/4974.fig.3.jpg)
Figure 3. Optical microscope images of PVDF films with (A) 5 wt.%; (B) 10 wt.%; and (C) 30 wt.% BTO-NPs. PVDF: Polyvinylidene fluoride; BTO-NP: BaTiO3 nanoparticle.
Figure 3. Optical microscope images of PVDF films with (A) 5 wt.%; (B) 10 wt.%; and (C) 30 wt.% BTO-NPs. PVDF: Polyvinylidene fluoride; BTO-NP: BaTiO3 nanoparticle.
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