Screen-printed microfluidic paper-based analytical device (μPAD) as a barcode sensor for magnesium detection using rubber latex waste as a novel hydrophobic reagent.
作者： Purim Jarujamrus , Rattapol Meelapsom , Puttharaksa Naksen , Nadh Ditcharoen , Wipark Anutrasakda
DOI: 10.1016/J.ACA.2019.06.058
关键词:
摘要: Abstract This work reports the first use of cis-1,4-polyisoprene obtained from rubber latex (RL) waste as hydrophobic reagent for fabrication a microfluidic paper-based analytical device (μPAD), providing user-friendly means magnesium detection. The μPAD was fabricated using screen printing technique and barcode-like paper sensor then used detection Mg(II) ions in RL water samples. Using different types media (paper towel, Whatman No.1 No.4), results indicate that key factors optimizing quality include viscosity solution which could be adjusted solvents heating temperatures, mesh size, pore size substrates, dimension sample zone. μPAD, showed high chemical resistance, durability design flexibility, tested reaction based on complexometric titration with EDTA where Eriochrome Black T an indicator. An Android application “UBU OMg Sensor” also developed to provide simple, fast, accurate end-users interpret generated by our μPAD.
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