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使用为指尖采血设计的微图案纸张设备测量肝功能标志物。

Measuring markers of liver function using a micropatterned paper device designed for blood from a fingerstick.

机构信息

Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States.

出版信息

Anal Chem. 2012 Mar 20;84(6):2883-91. doi: 10.1021/ac203434x. Epub 2012 Mar 2.

Abstract

This paper describes a paper-based microfluidic device that measures two enzymatic markers of liver function (alkaline phosphatase, ALP, and aspartate aminotransferase, AST) and total serum protein. A device consists of four components: (i) a top plastic sheet, (ii) a filter membrane, (iii) a patterned paper chip containing the reagents necessary for analysis, and (iv) a bottom plastic sheet. The device performs both the sample preparation (separating blood plasma from erythrocytes) and the assays; it also enables both qualitative and quantitative analysis of data. The data obtained from the paper-microfluidic devices show standard deviations in calibration runs and "spiked" standards that are acceptable for routine clinical use. This device illustrates a type of test useable for a range of assays in resource-poor settings.

摘要

本文描述了一种基于纸张的微流控装置,该装置可测量两种肝功能酶标志物(碱性磷酸酶,ALP 和天冬氨酸氨基转移酶,AST)和总血清蛋白。该装置由四个部分组成:(i)顶部塑料片,(ii)滤膜,(iii)含有分析所需试剂的图案化纸质芯片,以及(iv)底部塑料片。该装置既能进行样品制备(将血浆与红细胞分离),也能进行测定;它还能对数据进行定性和定量分析。从纸质微流控装置获得的数据显示,校准运行和“加标”标准的标准偏差可接受,可用于常规临床使用。该装置说明了一种在资源匮乏环境中可用于多种检测的测试类型。

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