Conformable amplified lead zirconate titanate sensors with enhanced piezoelectric response for cutaneous pressure monitoring

Canan Dagdeviren, Yewang Su, Pauline Joe, Raissa Yona, Yuhao Liu, Yun-Soung Kim, YongAn Huang, Anoop R. Damadoran, Jing Xia, Lane W. Martin, Yonggang Huang () and John A. Rogers ()
Additional contact information
Canan Dagdeviren: Frederick Seitz Materials Research Laboratory and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign
Yewang Su: Northwestern University
Pauline Joe: Frederick Seitz Materials Research Laboratory and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign
Raissa Yona: Frederick Seitz Materials Research Laboratory and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign
Yuhao Liu: Frederick Seitz Materials Research Laboratory and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign
Yun-Soung Kim: San Diego
YongAn Huang: Northwestern University
Anoop R. Damadoran: Frederick Seitz Materials Research Laboratory and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign
Jing Xia: Northwestern University
Lane W. Martin: Frederick Seitz Materials Research Laboratory and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign
Yonggang Huang: Northwestern University
John A. Rogers: Frederick Seitz Materials Research Laboratory and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign

Nature Communications, 2014, vol. 5, issue 1, 1-10

Abstract: Abstract The ability to measure subtle changes in arterial pressure using devices mounted on the skin can be valuable for monitoring vital signs in emergency care, detecting the early onset of cardiovascular disease and continuously assessing health status. Conventional technologies are well suited for use in traditional clinical settings, but cannot be easily adapted for sustained use during daily activities. Here we introduce a conformal device that avoids these limitations. Ultrathin inorganic piezoelectric and semiconductor materials on elastomer substrates enable amplified, low hysteresis measurements of pressure on the skin, with high levels of sensitivity (~0.005 Pa) and fast response times (~0.1 ms). Experimental and theoretical studies reveal enhanced piezoelectric responses in lead zirconate titanate that follow from integration on soft supports as well as engineering behaviours of the associated devices. Calibrated measurements of pressure variations of blood flow in near-surface arteries demonstrate capabilities for measuring radial artery augmentation index and pulse pressure velocity.

Date: 2014
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DOI: 10.1038/ncomms5496

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