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Jianliang Xiao

Jianliang Xiao is an Associate Professor in the Department of Mechanical Engineering at University of Colorado Boulder. Before joining CU-Boulder, he was a Postdoctoral Research Associate at the Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign. He obtained his Ph.D. degree in Mechanical Engineering in 2009 from Northwestern University, M.S. and B.S. degrees in Engineering Mechanics in 2006 and 2003 from Tsinghua University, respectively. His research interests include stretchable/flexible electronics, and mechanics of soft materials, thin films and nanomaterials. He was a recipient of the Best Paper Awards from ACM MobiCom '19, and Theoretical & Applied Mechanics Letters, the College Outstanding Dissertation Award (as advisor), Best Poster award (Colorado Photonics Industry Association Annual Meeting), ACS PRF Doctoral New Investigator award, and ASME Haythornthwaite Research Initiation Award. He is a secretary of the Executive Committee and Newsletter Editor of ASME Applied Mechanics Division, Associate Editor of Frontiers in Sensors, and Editorial Board member of NPJ Flexible Electronics, Science China Technological Sciences, Micromachines, Frontiers in Electronics, and Frontiers in Bioengineering and Biotechnology.


Stretchable, self-healable, recyclable and reconfigurable electronics for wearable applications

Jianliang Xiao

Department of Mechanical Engineering, University or Colorado Boulder, Boulder, CO 80303, USA (Jianliang.Xiao@Colorado.edu)

Abstract

Wearable electronics can be integrated with human body for monitoring physical activities and health conditions, for human-computer interfaces, and for virtual/augmented reality. We here report a multifunctional wearable electronic system that combines advances in materials, chemistry and mechanics to enable superior stretchability, self-healability, recyclability and reconfigurability. This electronic system heterogeneously integrates rigid, soft and liquid materials through a low-cost and scalable fabrication method. Multifunctional wearable electronic devices that can sense electrocardiograph (ECG), temperature, motion, strain and acoustic signals are demonstrated. A high-performance wearable thermoelectric generator (TEG) that can convert otherwise wasted body heat into electric power will also be discussed. The properties reported in these wearable electronic systems provide an approach to address sustainability and environment issues associated with mass production and use of electronics. Such electronic systems can find applications in many areas, including health care, robotics, and prosthetics, and can benefit the wellbeing, economy, and sustainability of our society.

 

References

[1] Y. Qiu, Z. Zou, Z. Zou, N. K. Setiawan, K. V. Dikshit, G. Whiting, F. Yang, W. Zhang, J. Lu, B. Zhong., H. Wu*, J. Xiao*, Deep Learning Assisted Printed Liquid Metal Sensory System for Wearable Applications and Boxing Training, NPJ Flexible Electronics 7, 37 (2023)

[2] C. Shi, Y. Zhao, P. Zhu, J. Xiao, and G. Nie, Highly Stretchable and Rehealable Wearable Strain Sensor Based on Dynamic Covalent Thermoset and Liquid Metal, Smart Materials and Structures 30, 105001 (2021)

[3] C. Shi, Z. Zou, Z. Lei, P. Zhu, G. Nie, W. Zhang, and J. Xiao, Stretchable, Rehealable, Recyclable and Reconfigurable Integrated Strain Sensor for Joint Motion and Respiration Monitoring, Research, vol. 2021, Article ID 9846036 (2021).

[4] P. Zhu, C. Shi, Y. Wang, Y. Wang, Y. Yu, Y. Wang, Y. Deng, and J. Xiao, Recyclable, healable and stretchable high-power thermoelectric generator, Advanced Energy Materials 11, 2100920 (2021)

[5] W. Ren, Y. Sun, D. Zhao, A. Aili, S. Zhang, C. Shi, J. Zhang, H. Geng, J. Feng, J. Zhang, L. Zhang*, J. Xiao*, and R. Yang*, High-performance Wearable Thermoelectric Generator with Self-healing, Recycling and Lego-like Reconfiguring Capabilities, Science Advances 7, eabe0586 (2021)

[6] C. Shi, Z. Zou, Z. Lei, P. Zhu, W. Zhang, and J. Xiao, Heterogeneous Integration of Rigid, Soft and Liquid Materials for Self-healable, Recyclable, and Reconfigurable Wearable Electronics, Science Advances 6, eabd0202 (2020).

[7] C. Shi, Z. Zou, Z. Lei, X. Wu, Z. Liu, H. Lu, W. Zhang, and J. Xiao, Investigating the self-healing of dynamic covalent thermoset polyimine and its nanocomposites, Journal of Applied Mechanics 86, 101005 (2019)

[8] Z. Zou, C. Zhu, Y. Li, X. Lei, W. Zhang, J. Xiao, Rehealable, fully recyclable, and malleable electronic skin enabled by dynamic covalent thermoset nanocomposite. Science Advances 4, eaaq0508 (2018).