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Evanescent Wave Optical Trapping and Sensing on Polymer Optical Fibers for Ultra-Trace Detection of Glucose.
ACS Omega ( IF 3.7 ) Pub Date : 2020-08-25 , DOI: 10.1021/acsomega.0c01908 Tahereh Azargoshasb 1 , H Ali Navid 1 , Roghaieh Parvizi 2 , Hadi Heidari 3
ACS Omega ( IF 3.7 ) Pub Date : 2020-08-25 , DOI: 10.1021/acsomega.0c01908 Tahereh Azargoshasb 1 , H Ali Navid 1 , Roghaieh Parvizi 2 , Hadi Heidari 3
Affiliation
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Graphene sensitization of glucose-imprinted polymer (G-IP)-coated optical fiber has been introduced as a new biosensor for evanescent wave trapping on the polymer optical fiber to detect low-level glucose. The developed sensor operates based on the evanescent wave modulation principle. Full characterization via atomic force microscopy (AFM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy, high-resolution transmission electron microscopy (HRTEM), and N2 adsorption/desorption of as-prepared G-IP-coated optical fibers was experimentally tested. Accordingly, related operational parameters such as roughness and diameter were optimized. Incorporating graphene into the G-IP not only steadily promotes the electron transport between the fiber surface and as-proposed G-IP but also significantly enhances the sensitivity by acting as a carrier for immobilizing G-IP with specific imprinted cavities. The sensor demonstrates a fast response time (5 s) and high sensitivity, selectivity, and stability, which cause a wide linear range (10–100 nM) and a low limit of detection (LOD = 2.54 nM). Experimental results indicate that the developed sensor facilitates online monitoring and remote sensing of glucose in biological liquids and food samples.
中文翻译：
聚合物光纤上的van逝波光学陷波和传感，用于葡萄糖的超痕量检测。
引入葡萄糖印迹聚合物（G-IP）涂层的光纤的石墨烯敏化已被用作一种新型生物传感器，用于将polymer逝波捕获在聚合物光纤上以检测低水平的葡萄糖。研发的传感器基于van逝波调制原理工作。通过原子力显微镜（AFM），傅立叶变换红外（FTIR）光谱，X射线衍射（XRD），扫描电子显微镜（SEM），拉曼光谱，高分辨率透射电子显微镜（HRTEM）和N 2进行全面表征实验测试了制备的G-IP涂层光纤的吸附/解吸。因此，优化了相关的操作参数，例如粗糙度和直径。将石墨烯掺入G-IP中，不仅可以稳定地促进纤维表面与拟议的G-IP之间的电子传输，而且还可以通过将G-IP固定在具有特定压印腔的载体上来显着提高灵敏度。该传感器显示出快速的响应时间（5 s）和高灵敏度，选择性和稳定性，可导致宽线性范围（10–100 nM）和低检测限（LOD = 2.54 nM）。实验结果表明，开发的传感器有助于在线监测和遥感生物液体和食品样品中的葡萄糖。
更新日期：2020-09-08
中文翻译：
聚合物光纤上的van逝波光学陷波和传感，用于葡萄糖的超痕量检测。
引入葡萄糖印迹聚合物（G-IP）涂层的光纤的石墨烯敏化已被用作一种新型生物传感器，用于将polymer逝波捕获在聚合物光纤上以检测低水平的葡萄糖。研发的传感器基于van逝波调制原理工作。通过原子力显微镜（AFM），傅立叶变换红外（FTIR）光谱，X射线衍射（XRD），扫描电子显微镜（SEM），拉曼光谱，高分辨率透射电子显微镜（HRTEM）和N 2进行全面表征实验测试了制备的G-IP涂层光纤的吸附/解吸。因此，优化了相关的操作参数，例如粗糙度和直径。将石墨烯掺入G-IP中，不仅可以稳定地促进纤维表面与拟议的G-IP之间的电子传输，而且还可以通过将G-IP固定在具有特定压印腔的载体上来显着提高灵敏度。该传感器显示出快速的响应时间（5 s）和高灵敏度，选择性和稳定性，可导致宽线性范围（10–100 nM）和低检测限（LOD = 2.54 nM）。实验结果表明，开发的传感器有助于在线监测和遥感生物液体和食品样品中的葡萄糖。
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