DataVXNordic Pulp & Paper Research JournalPaper
journal article·2016-05-01Open access

Planar fluidic channels on TiO2 nanoparticle coated paperboard

Dimitar Valtakari, Milena Stepien, Janne Haapanen, Hannu Teisala, Mikko Tuominen, Jurkka Kuusipalo, Jyrki M. Mäkelä, Martti Toivakka, Jarkko J. Saarinen

Nordic Pulp & Paper Research Journal· Volume 31· Issue 2
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Source abstract

Abstract

A new design for permanent, low-cost, and planar fluidic channels on TiO2 nanoparticle coated paperboard is demonstrated. Initially superhydrophobic TiO2 nanoparticle coatings can be converted to hydrophilic by ultraviolet (UVA) light, and fluidic channels can be generated. A simple water treatment after the UVA illumination converts the channels permanent when nanoparticles are removed from the illuminated and wetted areas as shown by water contact angle, FE-SEM, XPS, and ToF-SIMS analysis. This suggests new routes for inexpensive, easy to use point-of-care diagnostics based on planar fluidic channels.
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Research context

Nanomaterials

OpenAlex topics: Material Properties and Processing

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Affiliations

Abo Akademi University, Laboratory of Paper Coatingand Converting, Center for Functional Materials at Biological Interfaces (FUNMAT), Porthansgatan 3 , Åbo/Turku , Finland

AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, al. A.Mickiewicza 30 , Krakow , Poland

Tampere University of Technology, Aerosol Physics Laboratory, Department of Physics , Tampere , Finland

Tampere University of Technology, Paper Converting and Packaging Technology, Department of Materials Science, Tampere University of Technology , Tampere , Finland

SP Technical Research Institute of Sweden , Borås , Sweden

References

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