arXiv:1503.01493q-bio.NC
Self-tracking Energy Transfer for Neural Stimulation in Untethered Mice
Early discovery. Linked by one identifiable commenter. This paper is outside the main ranking; a mention is not an endorsement.
Abstract
Optical or electrical stimulation of neural circuits in mice during natural behavior is an important paradigm for studying brain function. Conventional systems for optogenetics and electrical microstimulation require tethers or large head-mounted devices that disrupt animal behavior. We report a method for wireless powering of small-scale implanted devices based on the strong localization of energy that occurs during resonant interaction between a radio-frequency cavity and intrinsic modes in mice. The system features self-tracking over a wide (16 cm diameter) operational area, and is used to demonstrate wireless activation of cortical neurons with miniaturized stimulators (10 mm$^{3}$, 20 mg) fully implanted under the skin.
shahryc, thanks for posting (and reposting) this story. It's some fascinating research. The paper in "Physical Review Applied" (linked in article) is paywalled, but there is a pre-print version available here: http://arxiv.org/abs/1503.01493
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