期刊
LAB ON A CHIP
卷 21, 期 23, 页码 4707-4715出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1lc00708d
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资金
- Institute for Basic Science [IBS-R020-D1]
- Korean Government
- Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI) - Ministry of Health & Welfare, Republic of Korea [HI19C1122]
Platelet function tests are crucial in diagnosing inherited platelet function disorders and monitoring antiplatelet therapies. Light transmission aggregometry (LTA) is considered the gold standard, but lacks standardization and requires a large volume of blood. A centrifugal microfluidic disc has been developed to automate LTA testing from a small blood sample, producing more precise results in a shorter time.
Platelet function tests, a group of assays that measure the ability of platelets to aggregate and promote clotting in a sample of blood, are performed in various medical fields to assess inherited platelet function disorders and monitor antiplatelet therapies. Light transmission aggregometry (LTA) is considered the gold standard for platelet function assessment. However, the lack of a standardized protocol is a major drawback when applied at the point of care. Moreover, it is a time-consuming and labor-intensive assay that requires a large volume of blood. Here, we describe the design, fabrication, and operation of a centrifugal microfluidic disc that can perform a fully automated LTA assay from a small volume of a whole blood sample (<1 mL), achieving highly reproducible results (3.2% coefficient of variation) within a short period (<25 min). The assays performed with this device yield more precise and accurate results than traditional LTA because of the automation of the reaction steps, minimal human operation, robust detection strategy via the distinctive structure of the microfluidic chamber, and quick analysis that minimizes the adverse effects of platelet instability.
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