基于金纳米壳粒子的准分布式光纤表面等离子体共振传感机理研究

项目名称： 基于金纳米壳粒子的准分布式光纤表面等离子体共振传感机理研究

项目编号： No.61307105

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 周新磊

作者单位： 大连理工大学

项目金额： 26万元

中文摘要： 目前表面等离子体共振（SPR）传感器存在着测试通道少、复用性差的问题。针对该问题，本项目提出基于金纳米壳粒子（Gold Nonoshells，GNSs）的准分布式光纤SPR传感技术方案。GNSs具有比金纳米粒子（Gold Nanoparticles， GNPs）更为独特和更为丰富的SPR特性，其SPR吸收峰具有良好的可控性。通过改变GNSs的组成形态，能制作出具有不同共振波长的SPR传感器，结合波分复用技术以及光纤易于集成的特点可实现对目标参量的准分布式测试。本项目拟在系统研究GNSs组成形态对其共振吸收峰的调控机制的基础上，以化学还原、自组装等方法为制备手段，结合光纤传感、波分复用、生化检测分析、纳米光子学及传感器融合等技术，开展具有高灵敏度、高分辨率、大测量范围及体积小、易集成等优点的生化参量准分布式测试系统研究。研究成果将在环境监测、医疗诊断、制药及食品安全检测等领域发挥积极的作用。

中文关键词： 表面等离子体共振；金纳米壳粒子；准分布式测试；生化传感；光纤传感器

英文摘要： In order to improve the multiple measurement performance of surface plasmon resonance (SPR) sensors, a quasi-distributed sensing scheme based on the gold nanoshells (GNSs) is proposed in this project. Compared to the gold nanoparticles (GNPs), the GNSs own more special and more excellent surface plasmon resonance properties. The resonance peak of GNSs can be easily tuned in the visible and near infra-red region. SPR sensors with different resonance wavelengths can be implemented by changing the structure of the GNSs. Based on the wavelength division multiplexing technology, the GNSs based optical fiber SPR sensor can carry out quasi-distributed measurements to target parameters. In this project, based on systematic studies on the effect mechanism between the structure and the resonance peak of GNSs, we will prepared GNSs with high performance by self-assembly and reduction method firstly. Then, integrated with the optical fiber sensor, wavelength division multiplexing, biochemical detection and analysis, nanophotonics and sensor fusion technologies, abundant theory and experiment research on quasi-distributed SPR biochemical sensing system will be carried out. The proposed quasi-distributed sensing system has advantages of high sensitivity, high resolution, large measurement range, small size and easy to integr

英文关键词： surface plasmon resonance；gold nanoshells；quasi-distributed measurement；biochemical sensor；optical fiber sensor