Chinese Optics Letters, Vol. 9, Issue 10, 100608 (2011)
Reusable glucose fiber sensor for measuring glucose concentration in serum
Cheng-Chih Hsu1, Yi-Cheng Chen1, Ju-Yi Lee2, and Chyan-Chyi Wu3
- 1Department of Photonics Engineering, Yuan Ze University, 135, Yuan-Tung Road, Chung-Li 32003, China
- 2Institute of Opto-Mechatronics Engineering, National Central University, 300, Jhongda Road, Chung-Li 32001, China
- 3Department of Mechanical and Electro-Mechanical Engineering, Tamkang University, 151, Yingzhuan Road, Tamsui 25137, China
We demonstrate a glucose fiber sensor for measuring glucose concentration in serum. High resolution and rapid measurement are achieved through the integration of highly selective enzymes and heterodyne interferometry. The best resolution and response time obtained are 0.14 mg/dL and 1.3 s, respectively. The stability of the sensor is also verified by investigating the initial phase variation. Experimental results show that the fiber sensor can be reused more than 10 times.