公开(公告)号：WO2023278877A1

公开(公告)日：2023-01-05

申请号：PCT/US2022/036019

申请日：2022-07-01

Applicant: BREWER SCIENCE, INC.

Inventor： FURY, Jonathan J. ,  CAO, Xi ,  PETERS, Austin ,  LAKIN, Chad ,  SIMMONS, Cody ,  NEESON, Alec

IPC: G01N27/30 ,  G01N27/403 ,  G01N27/416 ,  G01N33/18 ,  G01N27/3335 ,  G01N27/38 ,  G01N27/4161 ,  G01N27/42 ,  G01N33/182

Abstract: A sensing platform for continuous water resource monitoring by electrochemical detection and solution parameter correction is provided. The sensing platform employs a solid-state electrolyte three-electrode cell, creating a high ionic strength environment within the solid-state electrolyte membrane, which is in ion exchange equilibria with the sampled solution. This device may be used as a standalone sensor in environments where the water parameters (pH temperature, and ionic strength) are controlled, or in concert with compensation sensors where water parameters are not controlled.

公开(公告)号：WO2023278882A1

公开(公告)日：2023-01-05

申请号：PCT/US2022/036035

申请日：2022-07-01

Applicant: BREWER SCIENCE, INC.

Inventor： FURY, Jonathan J. ,  CAO, Xi ,  LANDORF, Christopher ,  CHEN, Zun ,  NEESON, Alec ,  BOWEN, Weston ,  PETERS, Austin

IPC: G01N27/414 ,  G01N27/30 ,  G01N27/333 ,  G01N33/18 ,  G01N27/02 ,  G01N27/4146 ,  G01N27/4148

Abstract: A carbon nanotube (CNT) ion-selective field effect transistor (IS-FET) integrated device is used to detect nitrate ion in water. The device is operated as an IS-FET sensor, holding the measured potential between the drain electrode and an external reference electrode constant with a potentiometric circuit. Transduction occurs by changes in the effective CNT film gate potential with changes in the phase boundary potential of an ion-selective membrane (ISM) film. Moreover, the nitrate ISM film makes the device highly selective towards nitrate sensing. This printable IS- FET nitrate sensor enables real-time and high-resolution measurements and recording of nitrate ion in water at low cost.