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双色光纤SPR成像生物传感器

发表时间:2017-04-14  浏览量:1235  下载量:215
全部作者: 刘强,刘云,彭伟
作者单位: 大连理工大学物理与光电工程学院
摘 要: 在传统的单色表面等离子体共振(surface plasmon resonance,SPR)成像传感器基础上,提出利用数码相机内置的颜色选择性,分别提取图像的Red平面和Green平面灰度图像数据。从这两个颜色平面对传感器的实时响应情况进行分析,实现双色SPR成像传感器,在提高灵敏度的同时降低装置成本。基于LabVIEW开发实时图像处理系统,实现对自定义区域进行图像处理并保存检测过程中的图片数据。对1.330~1.354 RIU折射率范围的盐水进行检测,结果显示相对光强与折射率成线性关系,折射率灵敏度达-1 033.2%/RIU.
关 键 词: 光学;光纤传感;双色SPR成像;颜色选择性;实时检测
Title: Dual-color fiber optic SPR imaging biosensor
Author: LIU Qiang, LIU Yun, PENG Wei
Organization: School of Physics and Optoelectronic Engineering, Dalian University of Technology
Abstract: In this paper, based on the traditional single color surface plasmon resonance (SPR) imaging sensor, we proposed to use the color selectivity inside the digital camera to extract the Red plane and Green plane gray image data, and the real-time response of the sensor is analyzed from the two color planes. Dual-color SPR imaging sensor is realized. This results increased sensitivity while reducing instrument costs. Based on LabVIEW, real-time image processing system is designed, realizing image processing of region of interest and saving the current picture data during detection process. Experimental results show that the relationship between the relative intensity and refractive index is a linear relation in a range from 1.330 RIU to 1.354 RIU, and the sensitivity is calculated to be -1 033.2%/RIU.
Key words: optics; fiber optic sensing; dual-color SPR imaging; color selectivity; real-time detection
发表期数: 2017年4月第7期
引用格式: 刘强,刘云,彭伟. 双色光纤SPR成像生物传感器[J]. 中国科技论文在线精品论文,2017,10(7):755-758.
 
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