Optical Fiber Surface Plasmon Resonance Sensor with Surface Modified Gold Nanorods for Biochemical Detection

被引：3
作者：
Li, Lixia [1 ]
Liang, Yuzhang [1 ]
Xie, Lingxiao [1 ]
Lu, Mengdi [1 ]
Peng, Wei [1 ]
机构：
[1] Dalian Univ Technol, Coll Phys & Optoelect Engn, Dalian 116024, Liaoning, Peoples R China
来源：
NANOPHOTONICS AND MICRO/NANO OPTICS II | 2014年 / 9277卷
关键词：
localized surface plasmon resonance; optical fiber; gold nanorods; multilayer; biomolecular sensing;
D O I：
10.1117/12.2071516
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel gold nanorods (GNRs) modified optical fiber localized surface plasmon resonance (LSPR) sensor for biochemical detection is demonstrated. The gold nanorods (GNRs) assembled film as the sensing layer was built on the polyelectrolyte (PE) multilayer modified sidewall of an unclad optical fiber. Poly (allylamine hydrochloride) (PAH)/poly (sodium 4-styrenesulfonate) (PSS) films were formed through layer-by-layer (LbL) assembly. The influence of the thickness of polyelectrolyte films was investigated. Simultaneously, the feasibility of the proposed film coupled nanorods optical fiber LSPR sensor in monitoring a series of concentration sucrose solutions with different refractive index is examined. Results suggest that the compact sensor can perform qualitative and quantitative detection in real-time biomolecular sensing.
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页数：6
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