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. 2022 Jan 7;8(1):eabl8423. doi: 10.1126/sciadv.abl8423

Fig. 4. Ex vivo demonstration of ultrasound triggered biodegradation FBI-TENG.

Fig. 4.

(A and B) Schematics illustrating ex vivo experiments of an FBI-TENG implanted in a porcine tissue (A) and visualizing the location of an implanted FBI-TENG in a porcine tissue (B). (C) Photographic image of FBI-TENG implanted 0.5 cm under the porcine skin. Scale bar, 1 cm. (D and E) Voltage and current outputs generated by the FBI-TENG in the ex vivo experimental setup. The ultrasound probe frequency and power were set at 20 kHz and 0.5 W cm−2, respectively. (F) HIU-triggered transient performance of FBI-TENG and stable electrical output generation at lower probe power of 0.5 W cm−2. (G) The summation plots of (F). Photo credits: Dong-Min Lee, SKKU.