Hydrogel-based integrated antenna-pH sensor

Jeong Il Kim; Zhenwen Ding; Sang No Lee; Jong Gwan Yook; Babak Ziaie; Dimitrios Peroulis

doi:10.1109/ICSENS.2007.4388494

Hydrogel-based integrated antenna-pH sensor

Jeong Il Kim, Zhenwen Ding, Sang No Lee, Jong Gwan Yook, Babak Ziaie, Dimitrios Peroulis

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

In this paper, a miniaturized integrated antenna-sensor based on a pH-sensitive hydrogel is designed, fabricated and characterized. The proposed sensor geometry is based on a 5-mm-long slot antenna whose frequency is controlled by a back-metal coated on the pH-sensitive hydrogel that is patterned on a glass substrate. When the antenna is immersed in a solution whose pH changes from 5 to 12 it shows a variation of its resonant frequency by approximately 160MHz around a center frequency of 21.7GHz. Except for an abnormal behavior around the pH=1 state caused by the back-metal-hydrogel bond, the pH-antenna frequency mapping exhibits a well-defined monotonie region from pH=5 to 12 thus covering many practical solutions.

Original language	English
Title of host publication	The 6th IEEE Conference on SENSORS, IEEE SENSORS 2007
Pages	695-698
Number of pages	4
DOIs	https://doi.org/10.1109/ICSENS.2007.4388494
Publication status	Published - 2007
Event	6th IEEE Conference on SENSORS, IEEE SENSORS 2007 - Atlanta, GA, United States Duration: 2007 Oct 28 → 2007 Oct 31

Publication series

Name	Proceedings of IEEE Sensors

Other

Other	6th IEEE Conference on SENSORS, IEEE SENSORS 2007
Country/Territory	United States
City	Atlanta, GA
Period	07/10/28 → 07/10/31

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Access to Document

10.1109/ICSENS.2007.4388494

Cite this

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title = "Hydrogel-based integrated antenna-pH sensor",

abstract = "In this paper, a miniaturized integrated antenna-sensor based on a pH-sensitive hydrogel is designed, fabricated and characterized. The proposed sensor geometry is based on a 5-mm-long slot antenna whose frequency is controlled by a back-metal coated on the pH-sensitive hydrogel that is patterned on a glass substrate. When the antenna is immersed in a solution whose pH changes from 5 to 12 it shows a variation of its resonant frequency by approximately 160MHz around a center frequency of 21.7GHz. Except for an abnormal behavior around the pH=1 state caused by the back-metal-hydrogel bond, the pH-antenna frequency mapping exhibits a well-defined monotonie region from pH=5 to 12 thus covering many practical solutions.",

author = "Kim, {Jeong Il} and Zhenwen Ding and Lee, {Sang No} and Yook, {Jong Gwan} and Babak Ziaie and Dimitrios Peroulis",

year = "2007",

doi = "10.1109/ICSENS.2007.4388494",

language = "English",

isbn = "1424412617",

series = "Proceedings of IEEE Sensors",

pages = "695--698",

booktitle = "The 6th IEEE Conference on SENSORS, IEEE SENSORS 2007",

note = "6th IEEE Conference on SENSORS, IEEE SENSORS 2007 ; Conference date: 28-10-2007 Through 31-10-2007",

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T1 - Hydrogel-based integrated antenna-pH sensor

AU - Kim, Jeong Il

AU - Ding, Zhenwen

AU - Lee, Sang No

AU - Yook, Jong Gwan

AU - Ziaie, Babak

AU - Peroulis, Dimitrios

PY - 2007

Y1 - 2007

N2 - In this paper, a miniaturized integrated antenna-sensor based on a pH-sensitive hydrogel is designed, fabricated and characterized. The proposed sensor geometry is based on a 5-mm-long slot antenna whose frequency is controlled by a back-metal coated on the pH-sensitive hydrogel that is patterned on a glass substrate. When the antenna is immersed in a solution whose pH changes from 5 to 12 it shows a variation of its resonant frequency by approximately 160MHz around a center frequency of 21.7GHz. Except for an abnormal behavior around the pH=1 state caused by the back-metal-hydrogel bond, the pH-antenna frequency mapping exhibits a well-defined monotonie region from pH=5 to 12 thus covering many practical solutions.

AB - In this paper, a miniaturized integrated antenna-sensor based on a pH-sensitive hydrogel is designed, fabricated and characterized. The proposed sensor geometry is based on a 5-mm-long slot antenna whose frequency is controlled by a back-metal coated on the pH-sensitive hydrogel that is patterned on a glass substrate. When the antenna is immersed in a solution whose pH changes from 5 to 12 it shows a variation of its resonant frequency by approximately 160MHz around a center frequency of 21.7GHz. Except for an abnormal behavior around the pH=1 state caused by the back-metal-hydrogel bond, the pH-antenna frequency mapping exhibits a well-defined monotonie region from pH=5 to 12 thus covering many practical solutions.

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DO - 10.1109/ICSENS.2007.4388494

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SN - 1424412617

SN - 9781424412617

T3 - Proceedings of IEEE Sensors

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BT - The 6th IEEE Conference on SENSORS, IEEE SENSORS 2007

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Y2 - 28 October 2007 through 31 October 2007

ER -

Hydrogel-based integrated antenna-pH sensor

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