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Journal Article

A piezo-electric device to aid penetration of small nerve fibers with microelectrodes

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons83962

Hengstenberg,  R
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Hengstenberg, R. (1981). A piezo-electric device to aid penetration of small nerve fibers with microelectrodes. Journal of Neuroscience Methods, 4(3), 249-255. doi:10.1016/0165-0270(81)90036-4.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-F0BD-2
Abstract
A small piezolectric device for cell penetration is described. It retracts the micropipette slowly by electrostriction, and pushes it very fast (<5µsec) forward by shorcircuiting the transducer. The design, operation circuit, and performance under test conditions are described. Penetration examples from small nerve fibres (<5µm) show that membrane puncture occurs only with the fast forward push. Cells are not noticeably damaged, even if the device is repeatedly operated after cell penetration.