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. Author manuscript; available in PMC: 2021 Oct 15.
Published in final edited form as: Biosens Bioelectron. 2021 Jan 23;178:113007. doi: 10.1016/j.bios.2021.113007

Figure 7. Wireless battery-free sensors for applications in cardiovascular health assessment.

Figure 7.

A) Schematic illustration of wireless, battery-free ECG system used for epidermal application on NICU patients. B) Photographic image of ECG device placed on the back of an infant. C) Graph of heart rate data collected using the ECG epidermal electronic system (EES) compared to the gold standard, wired system. D) Illustration of two devices with varying magnetic structures and their complementary printed circuit boards. E) Illustration of device function showing power and data transfer to the device with implementation on the aortic valve. F) Graph showing in vitro data collection at physiological conditions.