Ion channel-based flexible temperature sensor with humidity insensitivity

Jung Soo Kim; Kyoung Yong Chun; Chang Soo Han

doi:10.1016/j.sna.2018.01.025

Ion channel-based flexible temperature sensor with humidity insensitivity

Jung Soo Kim, Kyoung Yong Chun, Chang Soo Han

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We report an energy-efficient and mechanically durable temperature sensor with high selectivity and sensitivity. This sensor structure is inspired by ion channels in the cell membranes of living organisms that enable them to respond to temperature changes. For this purpose, a pore membrane and ionic solution are used for measuring the temperature based on the electrophoretic transport of ions. As the results indicate, we achieve a low consumption of power (8 μW/mm²), high linearity (R > 0.99), and a high temperature coefficient of resistance (0.022 °C⁻¹) over the specified temperature range (20–70 °C). Our sensor intrinsically exhibits high selectivity to the humidity change and high signal stability to mechanical deformation. In addition, we also fabricate a flexible 3 × 3 matrix ion-channel-based temperature sensor, and demonstrate that it is capable of highly selective, sensitive, and flexible measurement (or area mapping) of the temperature over a specified area.

Original language	English
Pages (from-to)	139-145
Number of pages	7
Journal	Sensors and Actuators, A: Physical
Volume	271
DOIs	https://doi.org/10.1016/j.sna.2018.01.025
Publication status	Published - 2018 Mar 1

Keywords

Flexible
Humidity
Ion channel
Sensor
Temperature

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering

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10.1016/j.sna.2018.01.025

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title = "Ion channel-based flexible temperature sensor with humidity insensitivity",

abstract = "We report an energy-efficient and mechanically durable temperature sensor with high selectivity and sensitivity. This sensor structure is inspired by ion channels in the cell membranes of living organisms that enable them to respond to temperature changes. For this purpose, a pore membrane and ionic solution are used for measuring the temperature based on the electrophoretic transport of ions. As the results indicate, we achieve a low consumption of power (8 μW/mm2), high linearity (R > 0.99), and a high temperature coefficient of resistance (0.022 °C−1) over the specified temperature range (20–70 °C). Our sensor intrinsically exhibits high selectivity to the humidity change and high signal stability to mechanical deformation. In addition, we also fabricate a flexible 3 × 3 matrix ion-channel-based temperature sensor, and demonstrate that it is capable of highly selective, sensitive, and flexible measurement (or area mapping) of the temperature over a specified area.",

keywords = "Flexible, Humidity, Ion channel, Sensor, Temperature",

author = "Kim, {Jung Soo} and Chun, {Kyoung Yong} and Han, {Chang Soo}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (Project #: 2016R1A5A1010148 , 2015R1A2A2A01004751 , 2015R1A2A1A01005931 ). Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

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doi = "10.1016/j.sna.2018.01.025",

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T1 - Ion channel-based flexible temperature sensor with humidity insensitivity

AU - Kim, Jung Soo

AU - Chun, Kyoung Yong

AU - Han, Chang Soo

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (Project #: 2016R1A5A1010148 , 2015R1A2A2A01004751 , 2015R1A2A1A01005931 ). Publisher Copyright: © 2018 Elsevier B.V.

PY - 2018/3/1

Y1 - 2018/3/1

N2 - We report an energy-efficient and mechanically durable temperature sensor with high selectivity and sensitivity. This sensor structure is inspired by ion channels in the cell membranes of living organisms that enable them to respond to temperature changes. For this purpose, a pore membrane and ionic solution are used for measuring the temperature based on the electrophoretic transport of ions. As the results indicate, we achieve a low consumption of power (8 μW/mm2), high linearity (R > 0.99), and a high temperature coefficient of resistance (0.022 °C−1) over the specified temperature range (20–70 °C). Our sensor intrinsically exhibits high selectivity to the humidity change and high signal stability to mechanical deformation. In addition, we also fabricate a flexible 3 × 3 matrix ion-channel-based temperature sensor, and demonstrate that it is capable of highly selective, sensitive, and flexible measurement (or area mapping) of the temperature over a specified area.

AB - We report an energy-efficient and mechanically durable temperature sensor with high selectivity and sensitivity. This sensor structure is inspired by ion channels in the cell membranes of living organisms that enable them to respond to temperature changes. For this purpose, a pore membrane and ionic solution are used for measuring the temperature based on the electrophoretic transport of ions. As the results indicate, we achieve a low consumption of power (8 μW/mm2), high linearity (R > 0.99), and a high temperature coefficient of resistance (0.022 °C−1) over the specified temperature range (20–70 °C). Our sensor intrinsically exhibits high selectivity to the humidity change and high signal stability to mechanical deformation. In addition, we also fabricate a flexible 3 × 3 matrix ion-channel-based temperature sensor, and demonstrate that it is capable of highly selective, sensitive, and flexible measurement (or area mapping) of the temperature over a specified area.

KW - Flexible

KW - Humidity

KW - Ion channel

KW - Sensor

KW - Temperature

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JO - Sensors and Actuators, A: Physical

JF - Sensors and Actuators, A: Physical

ER -

Ion channel-based flexible temperature sensor with humidity insensitivity

Abstract

Keywords

ASJC Scopus subject areas

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