Abstract: A flexible implantable electrode array is disclosed, comprising: a shank formed from a flexible polymer material. In an example embodiment, the shank comprises: a waveguide; and a number of chipsets disposed in the shank along the length of the shank, wherein each chipset is configured to measure neural activity in tissue surrounding the shank near the respective chipset, and to communicate signals representative of the measured neural activity via the waveguide. A method for powering and receiving neuronal information from a flexible implantable electrode array comprises: wirelessly communicating power and commands from a backplane to a plurality of chipsets disposed along the length of a shank via a waveguide disposed within the shank; monitoring neural activity proximate each chipset and sending a signal representative of said neural activity from the corresponding chipset transceiver to the backplane via the waveguide.

Abstract: A magnetic spectrometer is integrated in a semiconductor substrate and provides high sensitivity without using an external magnet field. The spectrometer includes one or more highly stable on-chip oscillator and LC resonator. A current caused to pass through the inductor generates a magnetic field and polarizes the nanoparticles placed in its proximity, thereby changing the effective inductance of the inductor, and in turn, modifying the oscillation frequency of the LC resonator. The shift in the oscillation frequency is used to characterize the nanoparticles and measure their magnetic susceptibility frequency profile. The spectrometer operates at multiple frequencies over a diverse range without using a reference sensor thereby effectively increasing its spatial multiplexing density.

Abstract: A magnetic spectrometer is integrated in a semiconductor substrate and provides high sensitivity without using an external magnet field. The spectrometer includes one or more highly stable on-chip oscillator and LC resonator. A current caused to pass through the inductor generates a magnetic field and polarizes the nanoparticles placed in its proximity, thereby changing the effective inductance of the inductor, and in turn, modifying the oscillation frequency of the LC resonator. The shift in the oscillation frequency is used to characterize the nanoparticles and measure their magnetic susceptibility frequency profile. The spectrometer operates at multiple frequencies over a diverse range without using a reference sensor thereby effectively increasing its spatial multiplexing density.