Cellulose

, Volume 17, Issue 3, pp 649–659

Progress in patterned paper sizing for fabrication of paper-based microfluidic sensors

Article

DOI: 10.1007/s10570-010-9401-2

Cite this article as:
Li, X., Tian, J. & Shen, W. Cellulose (2010) 17: 649. doi:10.1007/s10570-010-9401-2

Abstract

In this paper, we report the progress in using paper sizing chemistry to fabricate patterned paper for chemical and biological sensing applications. Patterned paper sizing uses paper sizing agents to selectively hydrophobize certain area of a sheet. The hydrophilic-hydrophobic contrast of the pattern so created has an excellent ability to control capillary penetration of aqueous liquids in channels of the pattern. Incorporating this idea with digital ink jet printing technique, a new fabrication method of paper-based microfluidic devices is established. Ink jet printing can deliver biomolecules and chemicals with precision into the microfluidic patterns to form biological/chemical sensing sites within the patterns, forming the complete sensing devices. This study shows the potential of combining paper sizing chemistry and ink jet printing to produce paper-based sensors at low cost and at commercial volume.

Keywords

Paper microfluidics Ink jet printing Paper sizing Low-cost sensors 

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Department of Chemical Engineering, Australian Pulp and Paper InstituteMonash UniversityMelbourneAustralia