We present a microinjectrode system designed for electrophysiology and assisted delivery of experimental probes (i.e., nanosensors, microelectrodes), with optional drug infusion. Widely available microfluidic components are coupled to a cannula containing the probe. A step-by-step protocol for microinjectrode construction is included, with results during muscimol infusion in macaque cortex.
Vanegas, M. I., Hubbard, K. R., Esfandyarpour, R., Noudoost, B. Microinjectrode System for Combined Drug Infusion and Electrophysiology. J. Vis. Exp. (153), e60365, doi:10.3791/60365 (2019).