Flexographically Printed Fluidic Structures in Paper

This Technical Note demonstrates a simple method based on flexographic printing of polystyrene to form liquid guiding boundaries and layers on paper substrates. The method allows formation of hydrophobic barrier structures that partially or completely penetrate through the substrate. This unique pro...

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Bibliographic Details
Published inAnalytical chemistry (Washington) Vol. 82; no. 24; pp. 10246 - 10250
Main Authors Olkkonen, Juuso, Lehtinen, Kaisa, Erho, Tomi
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 15.12.2010
Subjects
Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Exact sciences and technology
Flexographic printing
Hydrophobic and Hydrophilic Interactions
Mechanical properties
Methods
Microfluidics
Molecular structure
Polystyrene
Polystyrenes
Printing - methods
Substrates
Printing
Device
Sample
Hydrophobic compound
Barrier
Method
Liquid layer
Substrate
Volume
Production
Diagnosis
Large scale
Flexography
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Summary:This Technical Note demonstrates a simple method based on flexographic printing of polystyrene to form liquid guiding boundaries and layers on paper substrates. The method allows formation of hydrophobic barrier structures that partially or completely penetrate through the substrate. This unique property enables one to form very thin fluidic channels on paper, leading to reduced sample volumes required in point-of-care diagnostic devices. The described method is compatible with roll-to-roll flexography units found in many printing houses, making it an ideal method for large-scale production of paper-based fluidic structures.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0003-2700
1520-6882
DOI:10.1021/ac1027066