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

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

Research output: Contribution to journal › Article › Scientific › peer-review

5 Citations (Scopus)

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.

Original language	English
Pages (from-to)	232-238
Number of pages	7
Journal	Nordic Pulp and Paper Research Journal
Volume	31
Issue number	2
Publication status	Published - 2016
Publication type	A1 Journal article-refereed

Keywords

Wetting
TIO2
Nanoparticle
Fluidic channel
Liquid flame spray (LFS)
Paperboard

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Cite this

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title = "Planar fluidic channels on TiO2 nanoparticle coated paperboard",

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. ",

keywords = "Wetting, TIO2, Nanoparticle, Fluidic channel, Liquid flame spray (LFS), Paperboard",

author = "Dimitar Valtakari and Milena Stepien and Janne Haapanen and Hannu Teisala and Mikko Tuominen and Jurkka Kuusipalo and M{\"a}kel{\"a}, {Jyrki M.} and Martti Toivakka and Saarinen, {Jarkko J.}",

note = "EXT={"}Tuominen, Mikko{"}",

year = "2016",

language = "English",

volume = "31",

pages = "232--238",

journal = "Nordic Pulp and Paper Research Journal",

issn = "0283-2631",

publisher = "Walter de Gruyter GmbH",

number = "2",

}

TY - JOUR

T1 - Planar fluidic channels on TiO2 nanoparticle coated paperboard

AU - Valtakari, Dimitar

AU - Stepien, Milena

AU - Haapanen, Janne

AU - Teisala, Hannu

AU - Tuominen, Mikko

AU - Kuusipalo, Jurkka

AU - Mäkelä, Jyrki M.

AU - Toivakka, Martti

AU - Saarinen, Jarkko J.

N1 - EXT="Tuominen, Mikko"

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

KW - Wetting

KW - TIO2

KW - Nanoparticle

KW - Fluidic channel

KW - Liquid flame spray (LFS)

KW - Paperboard

M3 - Article

SN - 0283-2631

VL - 31

SP - 232

EP - 238

JO - Nordic Pulp and Paper Research Journal

JF - Nordic Pulp and Paper Research Journal

IS - 2

ER -

Planar fluidic channels on TiO2 nanoparticle coated paperboard

Abstract

Keywords

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