Abstract
Wearable cardiovascular monitoring requires sensitive sensors and body-conforming electronics for reliable and automatic signal processing. Here, we present a fully self-contained platform that integrates a piezoelectric nanofibrous sensor with a custom flexible printed circuit board (PCB) for on-body charge amplification and filtering. Fabricated on a polyimide substrate with an ultralow bias current amplifier, the PCB preserves high-impedance piezoelectric signals for on-body signal processing. Electromechanical tests verified stable, linear performance improved by thermal annealing. System-level evaluation showed robust operation during cardiovascular monitoring, capturing radial, carotid, and seismocardiogram signals and extracting key cardiac parameters, demonstrating its potential as a practical, comprehensive, and wearable biosensing solution.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 48-55 |
| Number of pages | 8 |
| Journal | ACS Applied Electronic Materials |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 13 2026 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Electrochemistry
Keywords
- biosensors
- cardiovascular monitoring
- flexible electronics
- Piezoelectric
- signal processing
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