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6CCVD Research

Highly Sensitive Measurement of Bio-Electric Potentials by Boron-Doped Diamond (BDD) Electrodes for Plant Monitoring

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2015-10-23
JournalSensors
AuthorsTsuyoshi Ochiai, Shoko Tago, Mio Hayashi, Akira Fujishima
InstitutionsTokyo University of Science, Kanagawa Academy of Science and Technology
Citations14

Abstract

Section titled ā€œAbstractā€

We describe a sensitive plant monitoring system by the detection of the bioelectric potentials in plants with boron-doped diamond (BDD) electrodes. For sensor electrodes, we used commercially available BDD, Ag, and Pt plate electrodes. We tested this approach on a hybrid species in the genus Opuntia (potted) and three different trees (ground-planted) at different places in Japan. For the Opuntia, we artificially induced bioelectric potential changes by the surface potential using the fingers. We detected substantial changes in bioelectric potentials through all electrodes during finger touches on the surface of potted Opuntia hybrid plants, although the BDD electrodes were several times more sensitive to bioelectric potential change compared to the other electrodes. Similarly for ground-planted trees, we found that both BDD and Pt electrodes detected bioelectric potential change induced by changing environmental factors (temperature and humidity) for months without replacing/removing/changing electrodes, BDD electrodes were 5-10 times more sensitive in this detection than Pt electrodes. Given these results, we conclude that BDD electrodes on live plant tissue were able to consistently detect bioelectrical potential changes in plants.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 1968 - Evidence of a primary perception in plant life
  2. 2007 - Electrical signals and their physiological significance in plants [Crossref]
  3. 2009 - Monitoring system for electrical signals in plants in the greenhouse and its applications [Crossref]
  4. 1991 - Individuality in the anomalous bioelectric potential of silk trees prior to earthquakes
  5. 2007 - Fabrication, characterization, and application of boron-doped diamond microelectrodes for in vivo dopamine detection [Crossref]
  6. 2013 - Application of boron-doped diamond microelectrodes for dental treatment with pinpoint ozone-water production [Crossref]

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