A paper based microfluidic device for the detection of arsenic using a gold nanosensor

被引：85
作者：
Nath, Peuli [1 ,2 ]
Arun, Ravi Kumar [1 ,2 ]
Chanda, Nripen [1 ,2 ]
机构：
[1] CSIR, Cent Mech Engn Res Inst, Micro Syst Technol Lab, Durgapur 713209, India
[2] AcSIR, New Delhi 110001, India
来源：
RSC ADVANCES | 2014年 / 4卷 / 103期
关键词：
NANOPARTICLES;
D O I：
10.1039/c4ra12946f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A paper based microfluidic device is fabricated that can rapidly detect very lowconcentrations of As3+ ions using a gold nanosensor, Au-TA-TG. This simple but efficient system develops a visible bluish-black colour precipitate due to the formation of nanoparticle aggregates through transverse diffusive mixing of Au-TA-TG with As3+ ions on a paper substrate. The approach is extremely selective for arsenic with a detection limit of 1.0 ppb, which is lower than the WHO's reference standard for drinking water.
引用
收藏
页码：59558 / 59561
页数：4
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