Micro-patterns on nanocellulose films and paper by photo-induced thiol–yne click coupling: a facile method toward wetting with spatial resolution

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Micro-patterns on nanocellulose films and paper by photo-induced thiol–yne click coupling : a facile method toward wetting with spatial resolution. / Guo, Jiaqi; Filpponen, Ilari; Johansson, Leena Sisko; Heiβler, Stefan; Li, Lei; Levkin, Pavel; Rojas, Orlando J.

In: Cellulose, Vol. 25, No. 1, 2018, p. 367–375.

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@article{551f054695024afc90954d6ae2dca8da,
title = "Micro-patterns on nanocellulose films and paper by photo-induced thiol–yne click coupling: a facile method toward wetting with spatial resolution",
abstract = "We report a facile approach to tailor the wettability of ligno-cellulosic substrates via photo-induced thiol–yne click coupling. First, cellulosic surfaces were functionalized with 4-pentynoic acid to introduce terminal alkyne moieties for the subsequent photo-induced coupling in heterogeneous phase. Next, the (primed) surfaces were reacted with various thiol-containing molecules to systematically tailor the surface energy. Finally, the method was applied to nanocellulose films and paper to develop micro-patterned surfaces via UV lithography, endowing the substrates with thin hydrophilic channels (~ 250 μm thickness) and hydrophobic boundaries between neighboring water droplets, as small as 100 μm in width. Overall, we propose thiol-click as a facile method toward spatially-resolved wetting that enables paper-based electronics in smart labels and point-of-care bioplatforms.",
keywords = "Micro-patterns, Nanocellulose, Photo-induced thiol–yne reaction, Surface functionalization",
author = "Jiaqi Guo and Ilari Filpponen and Johansson, {Leena Sisko} and Stefan Heiβler and Lei Li and Pavel Levkin and Rojas, {Orlando J.}",
year = "2018",
doi = "10.1007/s10570-017-1593-2",
language = "English",
volume = "25",
pages = "367–375",
journal = "Cellulose",
issn = "0969-0239",
number = "1",

}

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TY - JOUR

T1 - Micro-patterns on nanocellulose films and paper by photo-induced thiol–yne click coupling

T2 - a facile method toward wetting with spatial resolution

AU - Guo, Jiaqi

AU - Filpponen, Ilari

AU - Johansson, Leena Sisko

AU - Heiβler, Stefan

AU - Li, Lei

AU - Levkin, Pavel

AU - Rojas, Orlando J.

PY - 2018

Y1 - 2018

N2 - We report a facile approach to tailor the wettability of ligno-cellulosic substrates via photo-induced thiol–yne click coupling. First, cellulosic surfaces were functionalized with 4-pentynoic acid to introduce terminal alkyne moieties for the subsequent photo-induced coupling in heterogeneous phase. Next, the (primed) surfaces were reacted with various thiol-containing molecules to systematically tailor the surface energy. Finally, the method was applied to nanocellulose films and paper to develop micro-patterned surfaces via UV lithography, endowing the substrates with thin hydrophilic channels (~ 250 μm thickness) and hydrophobic boundaries between neighboring water droplets, as small as 100 μm in width. Overall, we propose thiol-click as a facile method toward spatially-resolved wetting that enables paper-based electronics in smart labels and point-of-care bioplatforms.

AB - We report a facile approach to tailor the wettability of ligno-cellulosic substrates via photo-induced thiol–yne click coupling. First, cellulosic surfaces were functionalized with 4-pentynoic acid to introduce terminal alkyne moieties for the subsequent photo-induced coupling in heterogeneous phase. Next, the (primed) surfaces were reacted with various thiol-containing molecules to systematically tailor the surface energy. Finally, the method was applied to nanocellulose films and paper to develop micro-patterned surfaces via UV lithography, endowing the substrates with thin hydrophilic channels (~ 250 μm thickness) and hydrophobic boundaries between neighboring water droplets, as small as 100 μm in width. Overall, we propose thiol-click as a facile method toward spatially-resolved wetting that enables paper-based electronics in smart labels and point-of-care bioplatforms.

KW - Micro-patterns

KW - Nanocellulose

KW - Photo-induced thiol–yne reaction

KW - Surface functionalization

UR - http://www.scopus.com/inward/record.url?scp=85035812239&partnerID=8YFLogxK

U2 - 10.1007/s10570-017-1593-2

DO - 10.1007/s10570-017-1593-2

M3 - Article

VL - 25

SP - 367

EP - 375

JO - Cellulose

JF - Cellulose

SN - 0969-0239

IS - 1

ER -

ID: 16585653