Self-contained, automated, long-term sensor system for monitoring of soil and water nutrients in fields

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United States of America Patent

PATENT NO 11378541
SERIAL NO

16663116

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Abstract

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An automated, fieldable ion-selective sensor system for frequent detection of nutrients in soils or water is set forth. In one aspect, an integrated small form-factor housing includes a battery, processor, a fluid manipulation unit and reservoirs, and a chemical species detection cell. A flow-through sampling head can be connected to the detection cell and a waste reservoir by flexible tubing sealingly connected at opposite ends of the tube. In one aspect, improved performance of the ion-selective sensor includes adding an ion-to-electron transfer interlayer between an ion-selective membrane and its working electrode. In one aspect, the sensor is solid-state and uses printed polymeric composite of POT-MoS2. The use of a porous tube for a sampling head and fluid connection at opposite ends allows not only fluid to be removed from the head to the detection cell for measurement but also flow in an opposite direction and out to a waste reservoir to clean and reset for a next sample measurement.

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Patent Owner(s)

Patent OwnerAddress
IOWA STATE UNIVERSITY RESEARCH FOUNDATION INCAMES IA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ali, Azahar Ames, US 4 0
Chen, Yuncong Ames, US 50 58
Dong, Liang Ames, US 149 3190
Jiao, Yueyi Ames, US 1 0
Wang, Xinran Ames, US 63 1585

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