Graphene/Au-Enhanced Plastic Clad Silica Fiber Optic Surface Plasmon Resonance Sensor
Graphene/Au-Enhanced Plastic Clad Silica Fiber Optic Surface Plasmon Resonance Sensor
复制标题
石墨烯/金增强型塑料包覆石英光纤表面等离子共振传感器
DOI：
10.1007/s11468-017-0534-0
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发表时间：
2018-04
期刊：
影响因子：
3
通讯作者：
Huang Yu
中科院分区：
文献类型：
--
作者：
Wei Wei;Nong Jinpeng;Zhu Yong;Zhang Guiwen;Wang Ning;Luo Suqin;Chen Na;Lan Guilian;Chin-Jung Chuang;Huang Yu
石墨烯具有较大的比表面积和良好的生物相容性，被认为是一种非常有前途的光纤传感器传感层。本文提出了一种石墨烯/金增强的塑料包层石英（PCS）光纤表面等离子体共振（SPR）传感器。采用石墨烯片作为涂覆在PCS纤维表面上的Au膜周围的传感层。选择PCS纤维以克服结构化微纤维的缺点并构造更稳定和可靠的装置。结果表明，石墨烯的引入可以增强传感层周围的受限电场强度，从而增强光与物质的相互作用，提高传感器的灵敏度。石墨烯基光纤SPR传感器的灵敏度比传统的金膜光纤SPR传感器的灵敏度高两倍以上。此外，动态响应分析表明，石墨烯/Au光纤SPR传感器表现出快速的响应（5 s的响应时间）和良好的可重复使用性（3.5%的波动）的蛋白质生物分子。这种石墨烯/Au光纤SPR传感器具有灵敏度高、响应速度快等优点，在生物化学领域具有广阔的应用前景。
Owing to its large surface-to-volume ratio and good biocompatibility, graphene has been identified as a highly promising candidate as the sensing layer for fiber optic sensors. In this paper, a graphene/Au-enhanced plastic clad silica (PCS) fiber optic surface plasmon resonance (SPR) sensor is presented. A sheet of graphene is employed as a sensing layer coated around the Au film on the PCS fiber surface. The PCS fiber is chosen to overcome the shortcomings of the structured microfibers and construct a more stable and reliable device. It is demonstrated that the introduction of graphene can enhance the intensity of the confined electric field surrounding the sensing layer, which results in a stronger light-matter interaction and thereby the improved sensitivity. The sensitivity of graphene-based fiber optic SPR sensor exhibits more than two times larger than that of the conventional gold film SPR fiber optic sensor. Furthermore, the dynamic response analyses reveal that the graphene/Au fiber optic SPR sensor exhibits a fast response (5 s response time) and excellent reusability (3.5% fluctuation) to the protein biomolecules. Such a graphene/Au fiber optic SPR sensor with high sensitivity and fast response shows a great promise for the future biochemical application.
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影响因子：
4.6
作者：
Tokel O;Yildiz UH;Inci F;Durmus NG;Ekiz OO;Turker B;Cetin C;Rao S;Sridhar K;Natarajan N;Shafiee H;Dana A;Demirci U
通讯作者：
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影响因子：
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作者：
Bingpu Zhou;X. Xiao;Ting Liu;Yibo Gao;Yingzhou Huang;W. Wen
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Bingpu Zhou;X. Xiao;Ting Liu;Yibo Gao;Yingzhou Huang;W. Wen
影响因子：
2.4
作者：
R. Tabassum;B. D. Gupta
通讯作者：
R. Tabassum;B. D. Gupta
影响因子：
8.4
作者：
Arghir, Iulia;Spasic, Dragana;Lammertyn, Jeroen
通讯作者：
Lammertyn, Jeroen
石墨烯增强光纤表面等离子共振生物传感器的灵敏度
影响因子：
4.3
作者：
Fu, Hongyan;Zhang, Shiwei;Weng, Jian
通讯作者：
Weng, Jian