In this paper, we describe a useful method to study ligand-gated ion channel function in neurons of acutely isolated brain slices. This method involves the use of a drug-filled micropipette for local application of drugs to neurons recorded using standard patch clamp techniques.
Engle, S. E., Broderick, H. J., Drenan, R. M. Local Application of Drugs to Study Nicotinic Acetylcholine Receptor Function in Mouse Brain Slices. J. Vis. Exp. (68), e50034, doi:10.3791/50034 (2012).