ISSN:
1432-2013
Keywords:
Microelectrodes
;
Electrode beveling
;
Ceric oxide
;
Current injection
;
Coupling resistance
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary A simple equipment for beveling intracellular microelectrodes has been made by modifying a conventional turntable. An agar disc containing ceric oxide polishing compound which was put on a flat glass disc was found to be suitable for beveling of Pyrex single- and double-barreled micropipette electrodes with a tip diameter larger than 0.1 μm. Although the beveled microelectrodes have not always been shown to give better cell penetration into the frog retinal rods than unbeveled fine ones, better records could usually be obtained when electric currents were injected into cells, probably being due to their lower resistance, noise, tip potentials and coupling resistance between two barrels.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01063469
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