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Microfluidic cytometers with integrated on-chip optical systems for red blood cell and platelet counting

机译:具有集成的光学系统的微流式细胞仪用于红细胞和血小板计数

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摘要

A microfluidic cytometer with integrated on-chip optical systems was designed for red blood cell (RBC) and platelet (PLT) counting. The design, fabrication, and characterization of the microfluidic cytometer with on-chip optical signal detection were described. With process using only a single mask, the device that integrates optical fibers and on-chip microlens with microfluidic channels on a polydimethylsiloxane layer by standard soft photolithography. This compact structure increased the sensitivity of the device and eliminated time-consuming free-space optical alignments. The microfluidic cytometer was used to count red blood cells and platelets. Forward scatter and extinction were collected simultaneously for each cell. Experimental results indicated that the microfluidic cytometer exhibited comparable performance with a conventional cytometer and demonstrated superior capacity to detect on-chip optical signals in a highly compact, simple, truly portable, and low-cost format that is well suitable for point-of-care clinical diagnostics.
机译:具有集成的片上光学系统的微流式细胞仪被设计用于红细胞(RBC)和血小板(PLT)计数。描述了具有芯片上光学信号检测的微流式细胞仪的设计,制造和表征。通过仅使用单个掩模的工艺,该设备即可通过标准的软光刻技术在聚二甲基硅氧烷层上将光纤和芯片上的微透镜与微流体通道集成在一起。这种紧凑的结构提高了设备​​的灵敏度,并消除了耗时的自由空间光学对准。微流式细胞仪用于计数红细胞和血小板。同时收集每个细胞的前向散射和消光。实验结果表明,微流式细胞仪表现出与常规细胞仪相当的性能,并显示出以高度紧凑,简单,真正便携且低成本的格式检测芯片上光信号的出色能力,非常适合即时护理临床诊断。

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