Journal
NATURE PROTOCOLS
Volume 8, Issue 12, Pages 2413-2428Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nprot.2013.158
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Funding
- US National Institutes of Health Common Fund
- National Institute on Drug Abuse (NIDA) [R01DA037152, R00DA025182]
- National Institute of Neurological Disorders and Stroke (NINDS) [R01NS081707]
- National Institute of Mental Health (NIMH) [F31MH101956]
- McDonnell Center for Systems Neuroscience
- National Security Science and Engineering Faculty Fellowship of Energy
- US Department of Energy, Division of Materials Sciences [DE-FG02-07ER46471]
- Materials Research Laboratory and Center for Microanalysis of Materials [DE-FG02-07ER46453]
- Washington University in St. Louis Division of Biological and Biomedical Sciences
- Institute for Basic Science (IBS)
- National Research foundation of Korea
- Ministry of Science, ICT and Future Planning in Korea [2009-00883540]
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The rise of optogenetics provides unique opportunities to advance materials and biomedical engineering, as well as fundamental understanding in neuroscience. This protocol describes the fabrication of optoelectronic devices for studying intact neural systems. Unlike optogenetic approaches that rely on rigid fiber optics tethered to external light sources, these novel devices carry wirelessly powered microscale, inorganic light-emitting diodes (mu-ILEDs) and multimodal sensors inside the brain. We describe the technical procedures for construction of these devices, their corresponding radiofrequency power scavengers and their implementation in vivo for experimental application. In total, the timeline of the procedure, including device fabrication, implantation and preparation to begin in vivo experimentation, can be completed in similar to 3-8 weeks. Implementation of these devices allows for chronic (tested for up to 6 months) wireless optogenetic manipulation of neural circuitry in animals navigating complex natural or home-cage environments, interacting socially, and experiencing other freely moving behaviors.
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