AUTHOR=Madrid Micah K. , Brennan Jaclyn A. , Yin Rose T. , Knight Helen S. , Efimov Igor R. 

TITLE=Advances in Implantable Optogenetic Technology for Cardiovascular Research and Medicine

JOURNAL=Frontiers in Physiology

VOLUME=12

YEAR=2021

URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2021.720190

DOI=10.3389/fphys.2021.720190

ISSN=1664-042X

ABSTRACT=<p>Optogenetic technology provides researchers with spatiotemporally precise tools for stimulation, sensing, and analysis of function in cells, tissues, and organs. These tools can offer low-energy and localized approaches due to the use of the transgenically expressed light gated cation channel Channelrhodopsin-2 (ChR2). While the field began with many neurobiological accomplishments it has also evolved exceptionally well in animal cardiac research, both <italic>in vitro</italic> and <italic>in vivo</italic>. Implantable optical devices are being extensively developed to study particular electrophysiological phenomena with the precise control that optogenetics provides. In this review, we highlight recent advances in novel implantable optogenetic devices and their feasibility in cardiac research. Furthermore, we also emphasize the difficulties in translating this technology toward clinical applications and discuss potential solutions for successful clinical translation.</p>