1. Electrochemical sensing in paper-based microfluidic devices.
- Author
-
Nie Z, Nijhuis CA, Gong J, Chen X, Kumachev A, Martinez AW, Narovlyansky M, and Whitesides GM
- Subjects
- Animals, Cattle, Disposable Equipment, Electrochemistry, Electrodes, Glycosuria, Humans, Metals, Heavy analysis, Microfluidic Analytical Techniques economics, Reproducibility of Results, Systems Integration, Time Factors, Water chemistry, Microfluidic Analytical Techniques methods, Paper
- Abstract
This paper describes the fabrication and the performance of microfluidic paper-based electrochemical sensing devices (we call the microfluidic paper-based electrochemical devices, microPEDs). The microPEDs comprise paper-based microfluidic channels patterned by photolithography or wax printing, and electrodes screen-printed from conducting inks (e.g., carbon or Ag/AgCl). We demonstrated that the microPEDs are capable of quantifying the concentrations of various analytes (e.g., heavy-metal ions and glucose) in aqueous solutions. This low-cost analytical device should be useful for applications in public health, environmental monitoring, and the developing world.
- Published
- 2010
- Full Text
- View/download PDF