The Neural Interfaces Lab works on the design and testing of neural devices. We establish microfabrication processes for building improved neural devices, investigate thin film materials for neural applications, evaluate in vitro electrochemical behavior of electrodes, and test in vivo performance and stability of microelectrode arrays. We evaluate devices for neural engineering applications by combining microscopy, analysis of materials, electrochemical evaluations, accelerated testing, failure analysis, and animal studies. Our lab has ongoing research focused on the following areas:
Materials Research and Neural Device Fabrication:
Developing amorphous silicon carbide based ultra-microelectrode arrays for cortical neuron recording and stimulation.
Developing stable sputtered iridium oxide films (SIROF) using reactive DC Magnetron sputtering for chronic neural stimulation and recording.
Evaluating chronic stability of Parylene-C devices with amorphous silicon-carbide encapsulation.
Understanding electrochemical mechanisms that cause changes in electrode charge injection capability in vitro vs. in vivo.
Developing durable iridium oxide micro-supercapacitors for energy storage in implantable bioelectronics.
Neural Device Performance Testing:
Evaluating an intracortical vision prosthesis utilizing wireless microelectrode arrays.
Evaluating functional changes in the rat caused by chronic implantation of a wireless intraneural microelectrode array implanted in the sciatic nerve.
Establishing methods for electrochemical characterization of the in vivo performance of electrodes.
Evaluating chronic stability of SIROF coated UTAH arrays both in vitro and in vivo.
Evaluating long-term reliability of cortical microelectrode arrays in vivo.