Citation: YANG Wen-Tao, ZHANG Lin, LIU Hong, GU Zhong-Ze. Smartphone-based Paper Microfluidic Device for Potentiometric Detection of Pesticide[J]. Chinese Journal of Analytical Chemistry, ;2016, 44(4): 586-590. doi: 10.11895/j.issn.0253-3820.160135 shu

Smartphone-based Paper Microfluidic Device for Potentiometric Detection of Pesticide

1.
State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China

Corresponding author: LIU Hong,
Received Date: 27 February 2016
Available Online: 3 March 2016
Fund Project: 本文系国家自然科学基金(No.21405014) (No.21405014)江苏省自然科学基金(No.BK20140619) (No.BK20140619)苏州市科技计划项目(No.ZXY201439) (No.ZXY201439)

The paper-based microfluidic devices have emerged as simple yet powerful platforms for performing low-cost analytical tests. A novel paper-based microfluidic chip for potentiometric detection using the principle of concentration cell was developed and examined for smartphone-based pesticide detection. Paper-based device was fabricated via wax printing and preloaded with reagents. After sample introduction and reaction for 5 minutes, screen-printed electrodes were attached and assembled into a 3D-printed holder for the potentiometric measurement using the smartphone-based reader. For the proof-of-concept, a pesticide(trichlorfon) was quantitatively detected with a limit of detection of 0.89μmol/L.
- Smartphone,
- Concentration cell,
- Paper-based microfluidic chip,
- Acetylcholinesterase,
- Pesticide detection
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沈阳化工大学材料科学与工程学院沈阳 110142