title: A Flexible and Wearable Human Stress Monitoring Patch.
abstract: A human stress monitoring patch integrates three sensors of skin temperature, skin conductance, and pulsewave in the size of stamp (25 mm × 15 mm × 72 μm) in order to enhance wearing comfort with small skin contact area and high flexibility. The skin contact area is minimized through the invention of an integrated multi-layer structure and the associated microfabrication process; thus being reduced to 1/125 of that of the conventional single-layer multiple sensors. The patch flexibility is increased mainly by the development of flexible pulsewave sensor, made of a flexible piezoelectric membrane supported by a perforated polyimide membrane. In the human physiological range, the fabricated stress patch measures skin temperature with the sensitivity of 0.31 Ω/°C, skin conductance with the sensitivity of 0.28 μV/0.02 μS, and pulse wave with the response time of 70 msec. The skin-attachable stress patch, capable to detect multimodal bio-signals, shows potential for application to wearable emotion monitoring.
authors.affiliation: NanoSentuating Systems Laboratory, Cell Bench Research Center Korea Advanced Institute of Science and Technology (KAIST), 271 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea.
authors.forename: Sunghyun
authors.initials: S
authors.lastname: Yoon
authors.affiliation: NanoSentuating Systems Laboratory, Cell Bench Research Center Korea Advanced Institute of Science and Technology (KAIST), 271 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea.
authors.forename: Jai Kyoung
authors.initials: JK
authors.lastname: Sim
authors.affiliation: NanoSentuating Systems Laboratory, Cell Bench Research Center Korea Advanced Institute of Science and Technology (KAIST), 271 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea.
authors.forename: Young-Ho
authors.initials: YH
authors.lastname: Cho
mesh_terms: D004867:Equipment Design; D006339:Heart Rate; D006801:Humans; D018670:Monitoring, Ambulatory / Q000295:instrumentation* / Q000379:methods; D058998:Remote Sensing Technology / Q000295:instrumentation / Q000379:methods*; D012879:Skin Physiological Phenomena; D012881:Skin Temperature; D013315:Stress, Psychological / Q000175:diagnosis*