Microwave dielectric resonator biosensor for aqueous glucose solution

被引：109

作者：

Kim, Jongchul ^{[1
,2
]}

Babajanyan, Arsen ^{[1
,2
]}

Hovsepyan, Artur ^{[1
,2
]}

Lee, Kiejin ^{[1
,2
]}

Friedman, Barry ^{[3
]}

机构：

[1] Sogang Univ, Dept Phys, Seoul 121742, South Korea

[2] Sogang Univ, Interdisciplinary Program Integrated Biotechnol, Seoul 121742, South Korea

[3] Sam Houston State Univ, Dept Phys, Huntsville, TX 77341 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2008年 / 79卷 / 08期

关键词：

Dielectric resonators - Reflection - Glucose - Microwave resonators - Microwaves;

D O I：

10.1063/1.2968115

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We report a near-field microwave biosensor based on a dielectric resonator to detect glucose concentration. A microwave biosensor with a high Q dielectric resonator allows observation of the small variation of the glucose concentration by measuring the shift of the resonance frequency and the microwave reflection coefficient S-11. We observed the concentration of glucose with a detectable resolution up to 5 mg/ml at an operating frequency of about f =1.68 GHz. The change in the glucose concentration is directly related to the change in the reflection coefficient due to the electromagnetic interaction between the dielectric resonator and the glucose solution. (C) 2008 American Institute of Physics.

引用

页数：3

共 14 条

[11] Evanescent microwaves: A novel super-resolution noncontact nondestructive imaging technique for biological applications [J].