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Micromachines 2016, 7(1), 9; doi:10.3390/mi7010009

Aspartate Aminotransferase and Alanine Aminotransferase Detection on Paper-Based Analytical Devices with Inkjet Printer-Sprayed Reagents

Department of Engineering Science, National Cheng Kung University, Tainan 70101, Taiwan
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Author to whom correspondence should be addressed.
Academic Editor: Sergey S. Shevkoplyas
Received: 30 October 2015 / Revised: 4 January 2016 / Accepted: 11 January 2016 / Published: 15 January 2016
(This article belongs to the Special Issue Paper-Based Microfluidic Devices for Point-of-Care Diagnostics)
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Abstract

General biochemistry detection on paper-based microanalytical devices (PADs) uses pipette titration. However, such an approach is extremely time-consuming for large-scale detection processes. Furthermore, while automated methods are available for increasing the efficiency of large-scale PAD production, the related equipment is very expensive. Accordingly, this study proposes a low-cost method for PAD manufacture, in which the reagent is applied using a modified inkjet printer. The optimal reaction times for the detection of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) are shown to be 6 and 7 min, respectively, given AST and ALT concentrations in the range of 5.4 to 91.2 U/L (R2 = 0.9932) and 5.38 to 86.1 U/L (R2 = 0.9944). The experimental results obtained using the proposed PADs for the concentration detection of AST and ALT in real human blood serum samples are found to be in good agreement with those obtained using a traditional spectrophotometric detection method by National Cheng Kung University hospital. View Full-Text
Keywords: paper-based analytical devices; biochemistry detection; low-cost; inkjet printer paper-based analytical devices; biochemistry detection; low-cost; inkjet printer
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Wang, H.-L.; Chu, C.-H.; Tsai, S.-J.; Yang, R.-J. Aspartate Aminotransferase and Alanine Aminotransferase Detection on Paper-Based Analytical Devices with Inkjet Printer-Sprayed Reagents. Micromachines 2016, 7, 9.

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