Two-dimensional droplet-based surface plasmon resonance imaging using electrowetting-on-dielectric microfluidics

Lab Chip. 2009 Feb 7;9(3):473-5. doi: 10.1039/b814697g. Epub 2008 Nov 7.

Abstract

This article presents a multichannel droplet-based surface plasmon resonance platform. The platform comprises a digital electrowetting-on-dielectric (EWOD) microfluidic device coupled to surface plasmon resonance imaging (SPRi). SPRi is now a well-established detection technique that enables in-situ monitoring of multiple reactions occurring at the surface of the chip without the use of labels. Currently, the limiting factor in the application of SPRi for high-throughput applications is the flow-cell technology which relies on sequential sample processing within the continuous fluid flow. An original solution compared to the continuous flow-cell technology is proposed to increase the capability of existing SPRi technology. A parallel SPRi detection of different samples on the surface is achieved using the array-based digital microfluidic device.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electrodes
  • Equipment Design
  • Microfluidics / instrumentation*
  • Surface Plasmon Resonance / instrumentation*
  • Surface Properties
  • Wettability