期刊
LAB ON A CHIP
卷 13, 期 23, 页码 4653-4662出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3lc50403d
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资金
- Korea University
- National Research Foundation of Korea
- Ohio Center for Microfluidic Innovation (OCMI) at the University of Cincinnati
- Ohio Third Frontier Program
A new sample-to-answer polymer lab-on-a-chip, which can perform immunoassay with minimum user intervention through on-chip reservoirs for reagents and single-channel assay system, has been designed, developed and successfully characterized as a point-of-care testing (POCT) cartridge for the detection of thyroid stimulating hormone (TSH). Test results were obtained within 30 minutes after a sample was dropped into the POCT cartridge. The analyzed results of TSH showed a linear range of up to 55 mu IU mL(-1) with the limit of detection (LOD) of 1.9 mu IU mL(-1) at the signal-to-noise ratio (SNR) of 3. The reagents stored in the on-chip reservoirs maintained more than 97% of their initial volume for 120 days of storage time while the detection antibody retained its activity above 98% for 120 days. The sample-to-answer polymer lab-on-a-chip developed in this work using the mass-producible and low-cost polymer is well suited for the point-of-care testing of rapid in vitro diagnostics (IVD) of TSH.
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