1. エグゼクティブサマリー
The shift from rigid wearable electronics to skin-conformable and bio-integrated interfaces depends on materials and manufacturing processes that preserve signal quality, survive repeated deformation, and remain compatible with delicate substrates.
NovaCentrix conductive inks, used with Aerosol Jet Printing, Inkjet Printing, and Co-Jet Printing, provide that foundation across wearable acoustic sensing, haptics, cardiorespiratory monitoring, sweat analysis, ambient-temperature bio-interfaces, and biodegradable bioelectronics.
2. Strategic Application Areas
2.1 Acoustic Biometric Sensing and Speech Recognition - JS-A221AE 【1]
Piezoresistive wearable sensors for throat-integrated vocal monitoring achieved 95.9% recognition accuracy while maintaining stable signals on 40-micron polyurethane films. Aerosol jet printed electrodes enabled high-fidelity speech pattern capture in a conformable form factor.
2.2 Haptic Feedback and Wearable Tactile Displays - JS-A426 【2]
Aerosol jet printed micro-heaters with line widths around 55 microns and trace thickness near 2.4 microns provided the low thermal mass needed for rapid haptic response. The resulting system produced forces above 30 mN while staying within battery-friendly voltages.
2.3 Real-Time Cardiorespiratory Monitoring - JS-A191 【3]
A dual-sided grid electrode design reduced silver ink consumption by 36.6% while maintaining medical-grade signal quality with mean absolute error below 0.36 bpm during vigorous activity, making it a strong fit for wearable respiratory tracking.
2.4 Biochemical and Sweat Monitoring - JS-A102A 【4]
Printed silver interdigitated electrodes on flexible polyimide substrates serve as the conductive backbone for cobalt-based MOF sensing layers in wearable humidity and sweat monitoring. The IDE geometry enables stable transduction while the sensing layer provides analyte response.
2.5 Bio-Integrated and Ambient-Temperature Monitoring - JS-A221AE 【5]
Non-thermal atmospheric plasma jet sintering at about 35 degrees Celsius enables direct printing onto biotic substrates such as leaves and soft polymers. This opens routes to hydration and environmental monitoring where conventional thermal curing would damage the target surface.
3. Academic Evidence Matrix
Published Wearables Validation
Representative applications, materials, and print processes from the document.
| 音声認識 | JS-A221AE, Aerosol Jet, ACS Sensors |
|---|---|
| Tactile display | JS-A426, Aerosol Jet, npj Flexible Electronics |
| Respiratory tracking | JS-A191, Inkjet, IEEE BSN |
| Humidity and sweat | JS-A102A, Inkjet, IEEE Sensors Journal |
| Bio-hydration | JS-A221AE, Co-Jet, Small |
| Silk bioelectronics | JS-A102A, Inkjet, Advanced Science |
4. 参考情報
- 【1]
Wang, Q.; Li, P.; Yuan, Q.; Zhang, W.; Ma, M.; Luo, G.; Lang, Y.; Zhou, L.; Su, Z. An Aerosol Jet-Printed Wearable Graphene/Cellulose Nanocrystal Acoustic Sensor for Speech Recognition. ACS Sens. 2025, 10 (11), 8521-8530.
オープンソース - 【2]
Mazzotta, A.; Taccola, S.; Cesini, I.; Sanchez Sifuentes, M.; Harris, R. A.; Mattoli, V. Low-Voltage Wearable Tactile Display with Thermo-Pneumatic Actuation. npj Flex. Electron. 2025, 9, 70.
オープンソース - 【3]
Utsha, U. T.; Rahman, M.; Morshed, B. I. Smartphone-Based Real-Time Respiration Tracking with Dual-Sided Inkjet-Printed Wearable Electrodes. In 2025 IEEE-EMBS International Conference on Body Sensor Networks (BSN); 2025.
オープンソース - 【4]
Hosseinzadeh, B.; Tonello, S.; Lopomo, N. F.; Sardini, E. Fully Printed Flexible Sensor with a Cobalt-Based Metal-Organic Framework Sensing Layer for Humidity Monitoring in Wearable Systems. IEEE Sens. J. 2026, 26, 3644-3657.
オープンソース - 【5]
Du, Y.; Yang, J.; Song, K.; Jiang, Q.; Bappy, M. O.; Zhu, Y.; Go, D. B.; Zhang, Y. Autonomous Aerosol and Plasma Co-Jet Printing of Metallic Devices at Ambient Temperature. Small 2025, 21 (11), e2409751.
オープンソース - 【6]
Mirbakht, S. S.; Golparvar, A. J.; Umar, M.; Kuzubasoglu, B. A.; Irani, F. S.; Yapici, M. K. Highly Self-Adhesive and Biodegradable Silk Bioelectronics for All-In-One Imperceptible Long-Term Electrophysiological Biosignals Monitoring. Adv. Sci. 2025, 12 (8), 2405988.
オープンソース
