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AN ULTRASENSITIVE VIBRATING PROBE FOR MEASURING STEADY EXTRACELLULAR CURRENTS
Open accessAbstract
We describe a vibrating probe system for measuring relatively steady electrical current densities near individual living cells. It has a signal-to-noise ratio at least 100 times greater than previously available techniques. Thus it can be used to detect current densities as small as 10 nA/cm2 in serum when a 30-µm diameter probe is vibrated at 200 Hz between two points 30 µm apart, and the amplifier's time constant is set at 10 s. Moreover, it should be generally insensitive to interference by concentration gradients. It has been first used to reveal and study 100-s long current pulses which developing fucoid embryos drive through themselves.
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Citations
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Nuccitelli, R. (2003) · Current Topics in Developmental Biology · doi:10.1016/s0070-2153(03)58001-2 · Cited by 390
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Metadata
- Authors
- Jaffe, L. F., & Nuccitelli, R.
- Venue
- The Journal of Cell Biology
- Publisher
- Rockefeller University Press
- Published
- 1974-11-01
- Volume
- 63
- Issue
- 2
- Pages
- 614-628
- ISSN
- 0021-9525 (ISSN-L)
- 1540-8140
- OpenAlex
- W2039900497
- Cited by
- 525
- References
- 0
- FWCI
- 8.66
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: AN ULTRASENSITIVE VIBRATING PROBE FOR MEASURING STEADY EXTRACELLULAR CURRENTS. https://app.cochat.ai/papers/10.1083/jcb.63.2.614
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- Jaffe, L. F., & Nuccitelli, R. (1974). AN ULTRASENSITIVE VIBRATING PROBE FOR MEASURING STEADY EXTRACELLULAR CURRENTS. The Journal of Cell Biology. https://doi.org/10.1083/jcb.63.2.614
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
