Biosensing using split-ring resonators at microwave regime

Hee Jo Lee; Jong Gwan Yook

doi:10.1063/1.2946656

Biosensing using split-ring resonators at microwave regime

Hee Jo Lee, Jong Gwan Yook

Department of Electrical and Electronic Engineering

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

182 Citations (Scopus)

Abstract

A split-ring resonator (SRR) array is experimentally demonstrated for a biosensing device at microwave frequencies. Each SRR in the array is excited by a time-varying H-field component through a microstrip transmission line in which microwaves propagate in the quasitransverse electromagnetic mode. It is found that the resonant frequency changes due to the binding of biotin and streptavidin onto the surface of the SRRs. The observed change values represent around Δ f_B=120 MHz and Δ f_B-S=40 MHz, respectively. Finally, the SRR-based biosensing device suggests a few improvements for increasing sensitivity and describes its possible application.

Original language	English
Article number	254103
Journal	Applied Physics Letters
Volume	92
Issue number	25
DOIs	https://doi.org/10.1063/1.2946656
Publication status	Published - 2008

Bibliographical note

Funding Information:
This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2006-311-D00706).

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2946656

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title = "Biosensing using split-ring resonators at microwave regime",

abstract = "A split-ring resonator (SRR) array is experimentally demonstrated for a biosensing device at microwave frequencies. Each SRR in the array is excited by a time-varying H-field component through a microstrip transmission line in which microwaves propagate in the quasitransverse electromagnetic mode. It is found that the resonant frequency changes due to the binding of biotin and streptavidin onto the surface of the SRRs. The observed change values represent around Δ fB=120 MHz and Δ fB-S=40 MHz, respectively. Finally, the SRR-based biosensing device suggests a few improvements for increasing sensitivity and describes its possible application.",

author = "Lee, {Hee Jo} and Yook, {Jong Gwan}",

note = "Funding Information: This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2006-311-D00706).",

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AU - Lee, Hee Jo

AU - Yook, Jong Gwan

N1 - Funding Information: This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2006-311-D00706).

PY - 2008

Y1 - 2008

N2 - A split-ring resonator (SRR) array is experimentally demonstrated for a biosensing device at microwave frequencies. Each SRR in the array is excited by a time-varying H-field component through a microstrip transmission line in which microwaves propagate in the quasitransverse electromagnetic mode. It is found that the resonant frequency changes due to the binding of biotin and streptavidin onto the surface of the SRRs. The observed change values represent around Δ fB=120 MHz and Δ fB-S=40 MHz, respectively. Finally, the SRR-based biosensing device suggests a few improvements for increasing sensitivity and describes its possible application.

AB - A split-ring resonator (SRR) array is experimentally demonstrated for a biosensing device at microwave frequencies. Each SRR in the array is excited by a time-varying H-field component through a microstrip transmission line in which microwaves propagate in the quasitransverse electromagnetic mode. It is found that the resonant frequency changes due to the binding of biotin and streptavidin onto the surface of the SRRs. The observed change values represent around Δ fB=120 MHz and Δ fB-S=40 MHz, respectively. Finally, the SRR-based biosensing device suggests a few improvements for increasing sensitivity and describes its possible application.

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ER -

Biosensing using split-ring resonators at microwave regime

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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