期刊
BIOSENSORS & BIOELECTRONICS
卷 136, 期 -, 页码 47-52出版社
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2019.04.024
关键词
Thread-paper microfluidic device; Glucose determination; Whole blood; Reaction rate; Smartphone
类别
资金
- Spanish MINECO [CTQ2016-78754-C2-1-R]
A combined thread-paper microfluidic device (mu TPAD) is presented for the determination of glucose in blood. The device is designed to include all the analytical operations needed: red blood cell separation, conditioning, enzymatic recognition, and colorimetric transduction. The signal is captured with a smartphone or tablet working in video mode and processed by custom Android-based software in real-time. The automatic detection of the region of interest on the thread allows for the use of either initial rate or equilibrium signal as analytical parameters. The time needed for analysis is 12 s using initial rate, and 100 s using the equilibrium measurement with a LOD of 48 mu M and 12 mu M, respectively, and a precision around 7%. The mu TPAD allows a rapid determination of glucose in real samples using only 3 mu L of whole blood.
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