Circuit-free cardiovascular monitoring via skin-interfaced nanophotonics
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866914228201324544 |
|---|---|
| author | Steffensen, Torjus L. Torvund, Arthur G. S. Stubberud, Vegar Lövgren, Julia Skjærvold, Nils K. Steinert, Martin R. Xomalis, Angelos |
| author_facet | Steffensen, Torjus L. Torvund, Arthur G. S. Stubberud, Vegar Lövgren, Julia Skjærvold, Nils K. Steinert, Martin R. Xomalis, Angelos |
| contents | Continuous cardiovascular monitoring is essential for managing circulatory health and disease, yet most wearable sensors are constrained by reliance on electrical transduction and built-in electronics. We present a circuit-free, wholly optical approach using diffraction from a skin-interfaced nanostructured surface to detect minute skin strains from the arterial pulse. A smartphone camera records the shifting diffraction pattern in real time, removing the need for spectrometers or other optical hardware. In phantom and human studies, we recovered high-fidelity arterial pulse waves and detected benign arrhythmic events in close agreement with a clinical reference. Derived waveforms captured features linked to arterial stiffness, a key cardiovascular risk marker. Our approach uses battery-free, cost-effective, and disposable platforms enabling scalable monitoring for healthcare and broad consumer applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_24820 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Circuit-free cardiovascular monitoring via skin-interfaced nanophotonics Steffensen, Torjus L. Torvund, Arthur G. S. Stubberud, Vegar Lövgren, Julia Skjærvold, Nils K. Steinert, Martin R. Xomalis, Angelos Applied Physics Medical Physics Optics Continuous cardiovascular monitoring is essential for managing circulatory health and disease, yet most wearable sensors are constrained by reliance on electrical transduction and built-in electronics. We present a circuit-free, wholly optical approach using diffraction from a skin-interfaced nanostructured surface to detect minute skin strains from the arterial pulse. A smartphone camera records the shifting diffraction pattern in real time, removing the need for spectrometers or other optical hardware. In phantom and human studies, we recovered high-fidelity arterial pulse waves and detected benign arrhythmic events in close agreement with a clinical reference. Derived waveforms captured features linked to arterial stiffness, a key cardiovascular risk marker. Our approach uses battery-free, cost-effective, and disposable platforms enabling scalable monitoring for healthcare and broad consumer applications. |
| title | Circuit-free cardiovascular monitoring via skin-interfaced nanophotonics |
| topic | Applied Physics Medical Physics Optics |
| url | https://arxiv.org/abs/2512.24820 |