Massively parallel microwire arrays integrated with CMOS chips for neural recordingMore about Open Access at the Crick
Authors listAbdulmalik Obaid Mina-Elraheb Hanna Yu-Wei Wu Mihaly Kollo Romeo Racz Matthew R Angle Jan Müller Nora Brackbill William Wray Felix Franke EJ Chichilnisky Andreas Hierlemann Jun B Ding Andreas Schaefer Nicholas A Melosh
Multi-channel electrical recordings of neural activity in the brain is an increasingly powerful method revealing new aspects of neural communication, computation, and prosthetics. However, while planar silicon-based CMOS devices in conventional electronics scale rapidly, neural interface devices have not kept pace. Here, we present a new strategy to interface silicon-based chips with three-dimensional microwire arrays, providing the link between rapidly-developing electronics and high density neural interfaces. The system consists of a bundle of microwires mated to large-scale microelectrode arrays, such as camera chips. This system has excellent recording performance, demonstrated via single unit and local-field potential recordings in isolated retina and in the motor cortex or striatum of awake moving mice. The modular design enables a variety of microwire types and sizes to be integrated with different types of pixel arrays, connecting the rapid progress of commercial multiplexing, digitisation and data acquisition hardware together with a three-dimensional neural interface.
Journal Science advances
Issue number 12