Nie, ZhihongNijhuis, Christian A.Gong, JinlongChen, XinKumachev, AlexanderMartinez, Andres W.Narovlyansky, MaxWhitesides, George2015-03-122010Nie, Zhihong, Christian A. Nijhuis, Jinlong Gong, Xin Chen, Alexander Kumachev, Andres W. Martinez, Max Narovlyansky, and George McClelland Whitesides. 2010. "Electrochemical Sensing in Paper-Based Microfluidic Devices." Lab on a Chip 10 (4): 477-483.1473-01971473-0189http://nrs.harvard.edu/urn-3:HUL.InstRepos:14121876This paper describes the fabrication and the performance of microfluidic paper-based electrochemical sensing devices (we call the microfluidic paper-based electrochemical devices, µPEDs). The µPEDs 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 µPEDs 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.en-USJournal Article2015-03-1210.1039/b917150a