Fig. 6
From: Inorganic semiconducting materials for flexible and stretchable electronics
Implantable wireless optogenetic system. a Exploded view images of a b multifunctional, injectable optoelectronic device that incorporates microelectrodes, Si NM photodetectors, inorganic microscale light emitting diodes (µ-ILEDs), and temperature and electrophysiological sensors integrated on a releasable injection microneedle (top left). Sequence of images of injection and release of the microneedle by dissolving a layer of silk as a temporary adhesive (top centers). Freely moving mouse with lightweight, flexible wireless optogenetic system. Heat maps of activity during motion in a Y-maze (bottom frames). Reprinted with permission from Kim et al.86 Copyright 2013 American Association for the Advancement of Science. b Exploded view schematic illustration of fully implantable stretchable wireless optogenetic device (left). The diagram shows the implanted wireless optogenetic device on the sciatic nerve (center). Image of a mouse with an optogenetic device implanted onto the sciatic nerve (right). Reprinted with permission from Park et al.89 Copyright 2015 Nature Publishing Group
