Glass-Coated Tungsten Microelectrodes

Science  11 Jun 1965:
Vol. 148, Issue 3676, pp. 1462-1464
DOI: 10.1126/science.148.3676.1462


Unusually rugged microelectrodes for recording the activity of single nerve cells or fibers can be constructed from tapered tungsten wire on which a glass capillary is collapsed and surface bonded. Tip diameter in the range between 1 and 5 microns provides relatively low impedance detection of extracellular potentials.