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Microneedle-based electrical impedance sensor to monitor plant water status in real time

Patent ·
OSTI ID:1840252
A sensor uses microneedle electrodes and multi-frequency electrical impedance spectroscopy to monitor plant water status in real time. The microneedle can be between 10 and 1000 microns in length, enabling precise placement in a variety of plant tissues. The impedance behavior can distinguish electrical properties and physiological functions of different plant tissue types. Therefore, impedance measurements can be used to monitor water stress to prevent irreversible damage to a plant and to enable improvement of plant biomass or fruit yield.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
DOE Contract Number:
NA0003525
Assignee:
UNM Rainforest Innovations (Albuquerque, NM); National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Number(s):
11,060,989
Application Number:
16/431,264
OSTI ID:
1840252
Country of Publication:
United States
Language:
English

References (13)

Microneedle-based sensors for medical diagnosis journal January 2016
Assimilate transport in phloem sets conditions for leaf gas exchange: Transport stoma journal October 2012
Microneedles for drug and vaccine delivery journal November 2012
Microneedle-Based Transdermal Sensor for On-Chip Potentiometric Determination of K+ journal December 2013
A novel crop water analysis system: identification of water stress tolerant genotypes of canola (Brassica napusL.) using non-invasive magnetic turgor pressure probes journal April 2014
Electrical impedance spectroscopy (EIS) for biological analysis and food characterization: a review journal January 2017
Moisture Content Measurement of Tea Leaves by Electrical Impedance and Capacitance journal March 2006
Fabrication of Flexible Microneedle Array Electrodes for Wearable Bio-Signal Recording journal April 2018
The determinants of leaf turgor loss point and prediction of drought tolerance of species and biomes: a global meta-analysis: Drivers of plant drought tolerance journal March 2012
Impedance analysis of Labisia pumila plant water status journal October 2015
Development of electrical conductivity measurement technology for key plant physiological information using microneedle sensor journal July 2017
Electrical Impedance Studies on Potato and Alfalfa Tissue journal January 1969
Electrical impedance analysis of potato tissues during drying journal January 2014

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