Electrochemical sensing in paper-based microfluidic devicesElectronic supplementary information (ESI) available: Geometry of the hydrodynamic µPED for the analysis of metals, estimation of diffusion coefficient, Cottrell plot for the analysis of glucose, chronoamperometric analysis of glucose in blood plasma and bovine blood, performance of gold electrodes on the paper-based devices. See DOI: 10.1039/b917150a

Autor:	Zhihong Nie, Christian A. Nijhuis, Jinlong Gong, Xin Chen, Alexander Kumachev, Andres W. Martinez, Max Narovlyansky, George M. Whitesides
Předmět:	ELECTROCHEMICAL sensors MICROFLUIDIC devices PAPER DIFFUSION HYDRODYNAMICS CEROGRAPHY PHOTOLITHOGRAPHY QUANTITATIVE chemical analysis
Zdroj:	Lab on a Chip; 2/21/2010, Vol. 10 Issue 4, p477-483, 7p
Abstrakt:	This 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. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
Externí odkaz:	Zobrazit plný text záznamu