Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/147130
Title: A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology
Authors: Luo, Yifei
Li, Wenlong
Lin, Qianyu
Zhang, Feilong
He, Ke
Yang, Dapeng
Loh, Xian Jun
Chen, Xiaodong
Keywords: Engineering::Materials::Organic/Polymer electronics
Issue Date: 2021
Source: Luo, Y., Li, W., Lin, Q., Zhang, F., He, K., Yang, D., Loh, X. J. & Chen, X. (2021). A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology. Advanced Materials, 33(14), e2007848-. https://dx.doi.org/10.1002/adma.202007848
Project: A18A1b0045
NRF-NRFI2017-07
MOE2019-T2-2-022
Journal: Advanced Materials
Abstract: Plant electrophysiology lays the foundation for smart plant interrogation and intervention. However, plant trichomes with hair-like morphologies present topographical features that challenge stable and high-fidelity non-invasive electrophysiology, due to the inadequate dynamic shape adaptability of conventional electrodes. Here, this issue is overcome using a morphable ionic electrode based on a thermogel, which gradually transforms from a viscous liquid to a viscoelastic gel. This transformation enables the morphable electrode to lock into the abrupt hairy surface irregularities and establish a conformal and adhesive interface. It achieves down to one tenth of the impedance and 4-5 times the adhesive strengths of conventional hydrogel electrodes on hairy leaves. As a result of the improved electrical and mechanical robustness, the morphable electrode can record more than one order of magnitude higher signal-to-noise ratio on hairy plants and maintains high-fidelity recording despite plant movements, achieving superior performance to conventional hydrogel electrodes. The reported morphable electrode is a promising tool for hairy plant electrophysiology and may be applied to diversely textured plants for advanced sensing and modulation.
URI: https://hdl.handle.net/10356/147130
ISSN: 0935-9648
DOI: 10.1002/adma.202007848
Rights: This is the peer reviewed version of the following article: Luo, Y., Li, W., Lin, Q., Zhang, F., He, K., Yang, D., Loh, X. J. & Chen, X. (2021). A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology. Advanced Materials, 33(14), e2007848-. https://dx.doi.org/10.1002/adma.202007848, which has been published in final form at https://doi.org/10.1002/adma.202007848. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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