摘要
基于共聚焦检测原理,建立了双波长生物芯片检测系统。采用体全息滤光片,利用其反射衍射和带阻滤光特性,无需切换或改变光路,在同一光路中即可实现Cy3与Cy5荧光双波长扫描检测。提出了基于顺序形态变换的生物芯片荧光点阵图像的网格化处理方法,并对Cy3与Cy5荧光试剂点样玻片进行了扫描实验,对实验所得荧光点阵图像进行了网格化处理。实验结果显示,系统的检测灵敏度达到0.1 fluo/μm2,网格化算法简单、有效。
A dual-wavelength microarray scanner based on laser confocal principle is constructed to detect two-color (Cy3/Cy5) fluorescence. Volume holographic filters are employed. It is not necessary to switch filters when samples tagged with Cy3 and Cy5 are scanned because of diffraction and band elimination property of volume holographic filter. Filter and gridding of microarray images based on order morphological methods are presented. Experimental result shows that sensitivity of the system is 0. 1 fluo/μm^2. The gridding algorithm is simple and effective.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2006年第8期1097-1103,共7页
Chinese Journal of Lasers
基金
国家973计划(2005CB724300)
上海市教委重点(05ZZ26)
上海市重点学科建设项目(T0501)
上海市教委青年基金(05EZ46)资助课题
关键词
测量
图像处理
生物芯片检测
体全息
网格化
measurement
image processing
microarray scanning
volume holographic
gridding