Electronic sensor and actuator webs for large-area complex geometry cardiac mapping and therapy

Dae Hyeong Kim, Roozbeh Ghaffari, Nanshu Lu, Shuodao Wang, Stephen P. Lee, Hohyun Keum, Robert D'Angelo, Lauren Klinker, Yewang Su, Chaofeng Lu, Yun Soung Kim, Abid Ameen, Yuhang Li, Yihui Zhang, Bassel De Graff, Yung Yu Hsu, Zhuang Jian Liu, Jeremy Ruskin, Lizhi Xu, Chi LuFiorenzo G. Omenetto, Yonggang Huang, Moussa Mansour, Marvin J. Slepian, John A. Rogers

Research output: Contribution to journalArticlepeer-review


Curved surfaces, complex geometries, and time-dynamic deformations of the heart create challenges in establishing intimate, non-constraining interfaces between cardiac structures and medical devices or surgical tools, particularly over large areas. We constructed large area designs for diagnostic and therapeutic stretchable sensor and actuator webs that conformally wrap the epicardium, establishing robust contact without sutures, mechanical fixtures, tapes, or surgical adhesives. These multifunctional web devices exploit open, mesh layouts and mount on thin, bio-resorbable sheets of silk to facilitate handling in a way that yields, after dissolution, exceptionally low mechanical moduli and thicknesses. In vivo studies in rabbit and pig animal models demonstrate the effectiveness of these device webs for measuring and spatially mapping temperature, electrophysiological signals, strain, and physical contact in sheet and balloon-based systems that also have the potential to deliver energy to perform localized tissue ablation.

Original languageEnglish (US)
Pages (from-to)19910-19915
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number49
StatePublished - Dec 4 2012
Externally publishedYes


  • Cardiac electrophysiology
  • Flexible electronics
  • Implantable biomedical devices
  • Semiconductor nanomaterials
  • Stretchable electronics

ASJC Scopus subject areas

  • General


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