• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optical fiber technology >Refractive index sensing characteristics of carbon nanotube-deposited photonic crystal fiber SPR sensor
【24h】

Refractive index sensing characteristics of carbon nanotube-deposited photonic crystal fiber SPR sensor

机译：碳纳米管沉积光子晶体光纤SPR传感器的折射率传感特性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, the carbon nanotubes (CNTs)-deposited Au film photonic crystal fiber (PCF) surface plasmon resonance (SPR) sensor (CNTs/Au-PCF sensor) and CNTs-deposited Ag film PCF SPR sensor (CNTs/Ag-PCF sensor) were developed and utilized to conduct a series of experiments for the refractive index sensing characteristics study of the CNTs-deposited SPR sensors. The PCF, spliced between two sections of multimode fibers (MMFs), was coated with a metal (Au or Ag) film and then deposited with CNTs for further sensing. CNTs coating can enhance the confined electric field intensity surrounding the sensing layer, making the SPR sensor more sensitive to the changes in the ambient medium. Compared with conventional Au film PCF SPR sensor (Au-PCF sensor), the sensitivity of CNTs/Au-PCF sensor increases by 1016.09 nm/RIU. Compared with conventional Ag film PCF SPR sensor (Ag-PCF sensor), the sensitivity of CNTs/Ag-PCF sensor increases by 709.22 nm/RIU. Therefore, we find that CNTs have a more significant effect on the Au-PCF sensor than the Ag-PCF sensor. The experimental measurements results agreed well with the simulation results. Furthermore, CNTs have high surface-to-volume ratio and extremely excellent biocompatibility. Bovine serum albumin (BSA) was employed as the target analyze to evaluate the feasibility of the CNTs/Au-PCF sensor for the detection of biomolecules, and the sensor exhibits higher sensitivity (8.18 nm/(mg/mL)), lower limit of detection (LOD) (2.5 mu g/mL), and faster response time (8 s) than the Au-PCF sensor. Such CNTs-deposited SPR sensors with high sensitivities and fast response present highly promising potential for application in the field of biochemistry.
机译：本文研究了碳纳米管（CNTs）沉积的金膜光子晶体纤维（PCF）表面等离子体共振（SPR）传感器（CNTs / Au-PCF传感器）和碳纳米管沉积的Ag膜PCF SPR传感器（CNTs / Ag-PCF开发并用于进行一系列实验，以研究碳纳米管沉积SPR传感器的折射率传感特性。拼接在两段多模光纤（MMF）之间的PCF涂有金属（Au或Ag）膜，然后沉积CNT以进一步传感。 CNTs涂层可以增强传感层周围的受限电场强度，从而使SPR传感器对周围介质的变化更加敏感。与传统的金膜PCF SPR传感器（Au-PCF传感器）相比，CNTs / Au-PCF传感器的灵敏度提高了1016.09 nm / RIU。与传统的银膜PCF SPR传感器（Ag-PCF传感器）相比，CNTs / Ag-PCF传感器的灵敏度提高了709.22 nm / RIU。因此，我们发现CNT对Au-PCF传感器的影响比对Ag-PCF传感器的影响更大。实验测量结果与仿真结果吻合良好。此外，CNT具有高的表面体积比和极好的生物相容性。以牛血清白蛋白（BSA）为目标分析，以评估CNTs / Au-PCF传感器检测生物分子的可行性，该传感器具有较高的灵敏度（8.18 nm /（mg / mL）），下限较低检测（LOD）（2.5μg / mL）和比Au-PCF传感器更快的响应时间（8 s）。这种具有高灵敏度和快速响应的碳纳米管沉积SPR传感器为生物化学领域的应用提供了非常有前途的潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号