- Surface plasmon resonance biochemical sensor based on light guiding flexible fused silica capillary tubing
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- 论文类型： 期刊论文
- 发表时间： 2015-12-01
- 发表刊物： OPTICS COMMUNICATIONS
- 收录刊物： SCIE、EI、Scopus
- 卷号： 356
- 页面范围： 212-217
- ISSN号： 0030-4018
- 关键字： Fiber optics; Surface plasmon; Glass waveguides; Surface waves
- 摘要： A fiber optic surface plasmon resonance (SPR) sensor based on light guiding flexible fused silica tubing with its cladding stripped and coated with gold film as SPR sensing area is presented. Theoretical simulate of the proposed sensing structure for different sensing area length and different film thickness of sensors is done to obtain the suitable parameters, and the simulation for different refractive index is carried out. Meanwhile, the experiments for refractive index (RI) measurement have been demonstrated using the developed sensor, 400 mu m optical fiber sensor and 125 mu m optical fiber sensor. Experimental results have shown the capillary sensor has advantage in terms of sensitivity and resolution. The capillary sensor is also used for detecting and monitoring biochemical binding and dissociation processes of the RNase B and Con A. It is proved that the sensor with chemical modification can be implemented for specific biochemical sensing (C) 2015 Elsevier B.V. All rights reserved.
