Wireless, battery-free, fully implantable multimodal and multisite pacemakers for applications in small animal models
Yin, Rose T
Lee, K Benjamin
Brennan, Jaclyn A
Chen, Sheena W
Leshock, John P
Haney, Chad R
Waters, Emily A
Efimov, Igor R
Rogers, John A
AffiliationUniv Arizona, Dept Biomed Engn
Univ Arizona, Dept Aerosp & Mech Engn
MetadataShow full item record
PublisherNATURE PUBLISHING GROUP
CitationGutruf, P., Yin, R.T., Lee, K.B. et al. Wireless, battery-free, fully implantable multimodal and multisite pacemakers for applications in small animal models. Nat Commun 10, 5742 (2019). https://doi.org/10.1038/s41467-019-13637-w
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AbstractSmall animals support a wide range of pathological phenotypes and genotypes as versatile, affordable models for pathogenesis of cardiovascular diseases and for exploration of strategies in electrotherapy, gene therapy, and optogenetics. Pacing tools in such contexts are currently limited to tethered embodiments that constrain animal behaviors and experimental designs. Here, we introduce a highly miniaturized wireless energy-harvesting and digital communication electronics for thin, miniaturized pacing platforms weighing 110 mg with capabilities for subdermal implantation and tolerance to over 200,000 multiaxial cycles of strain without degradation in electrical or optical performance. Multimodal and multisite pacing in ex vivo and in vivo studies over many days demonstrate chronic stability and excellent biocompatibility. Optogenetic stimulation of cardiac cycles with in-animal control and induction of heart failure through chronic pacing serve as examples of modes of operation relevant to fundamental and applied cardiovascular research and biomedical technology.
NoteOpen access journal
VersionFinal published version
SponsorsLeducq Foundation project RHYTHMLeducq Foundation; Biomedical Engineering Department start up grant at the University of Arizona; American Heart AssociationAmerican Heart Association [19PRE34380781]; national heart, lung, and blood instituteUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Heart Lung & Blood Institute (NHLBI) [NIH 5T32HL007955-19]; [R01HL141470]; [NIH R21-EB023106]
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