Micro-writing under water droplet using photo-switchable titanium oxide on nanocellulose coated micro-hoodoos

Sasha Hoshian; Ville Jokinen; Klas Hjort; Robin H.A. Ras; Sami Franssila

Micro-writing under water droplet using photo-switchable titanium oxide on nanocellulose coated micro-hoodoos

Sasha Hoshian^*
, Ville Jokinen
, Klas Hjort
, Robin H.A. Ras
, Sami Franssila

^*Corresponding author for this work

VTT Technical Research Centre of Finland

Aalto University
Uppsala University

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

In this work we develop fast and locally photo-switching transition between rolling state (Cassie-Baxter (CB)) and sticky state (Wenzel (W)) using photo-switchable titanium dioxide (TiO2) deposited by atomic layer deposition (ALD). It takes 1 min of UV exposure for switching from CB to W and 5 min of dark storage in oven (200°C) to recover the surface energy. We use crystal nanocellulose (CNC) on T-shaped micro-pillars (micro-hoodoos [1] Figure1-j) to make hierarchical structures. Photo-masked UV exposure causes the locally transition from CB to W.

Original language	English
Title of host publication	18th International Conference on Miniaturized Systems for Chemistry and Life Sciences
Pages	117-119
Volume	1
Publication status	Published - 2014
MoE publication type	A4 Article in a conference publication
Event	18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014 - San Antonio, United States Duration: 26 Oct 2014 → 30 Oct 2014 Conference number: 18

Conference

Conference	18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014
Abbreviated title	MicroTAS 2014
Country/Territory	United States
City	San Antonio
Period	26/10/14 → 30/10/14

Keywords

nanocellulose
photo-switching
superhydrophobic

Access to Document

http://www.rsc.org/images/loc/2014/PDFs/Papers/038_0335.pdf

Cite this

@inproceedings{9ab962713d4a4e7195431bfa587cee37,

title = "Micro-writing under water droplet using photo-switchable titanium oxide on nanocellulose coated micro-hoodoos",

abstract = "In this work we develop fast and locally photo-switching transition between rolling state (Cassie-Baxter (CB)) and sticky state (Wenzel (W)) using photo-switchable titanium dioxide (TiO2) deposited by atomic layer deposition (ALD). It takes 1 min of UV exposure for switching from CB to W and 5 min of dark storage in oven (200°C) to recover the surface energy. We use crystal nanocellulose (CNC) on T-shaped micro-pillars (micro-hoodoos [1] Figure1-j) to make hierarchical structures. Photo-masked UV exposure causes the locally transition from CB to W.",

keywords = "nanocellulose, photo-switching, superhydrophobic",

author = "Sasha Hoshian and Ville Jokinen and Klas Hjort and Ras, \{Robin H.A.\} and Sami Franssila",

year = "2014",

language = "English",

isbn = "978-0-9798064-7-6",

volume = "1",

pages = "117--119",

booktitle = "18th International Conference on Miniaturized Systems for Chemistry and Life Sciences",

note = "18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014, MicroTAS 2014 ; Conference date: 26-10-2014 Through 30-10-2014",

}

Hoshian, S, Jokinen, V, Hjort, K, Ras, RHA & Franssila, S 2014, Micro-writing under water droplet using photo-switchable titanium oxide on nanocellulose coated micro-hoodoos. in 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences. vol. 1, pp. 117-119, 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014, San Antonio, Texas, United States, 26/10/14. <http://www.rsc.org/images/loc/2014/PDFs/Papers/038_0335.pdf>

Micro-writing under water droplet using photo-switchable titanium oxide on nanocellulose coated micro-hoodoos. / Hoshian, Sasha; Jokinen, Ville; Hjort, Klas et al.
18th International Conference on Miniaturized Systems for Chemistry and Life Sciences. Vol. 1 2014. p. 117-119.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Micro-writing under water droplet using photo-switchable titanium oxide on nanocellulose coated micro-hoodoos

AU - Hoshian, Sasha

AU - Jokinen, Ville

AU - Hjort, Klas

AU - Ras, Robin H.A.

AU - Franssila, Sami

N1 - Conference code: 18

PY - 2014

Y1 - 2014

N2 - In this work we develop fast and locally photo-switching transition between rolling state (Cassie-Baxter (CB)) and sticky state (Wenzel (W)) using photo-switchable titanium dioxide (TiO2) deposited by atomic layer deposition (ALD). It takes 1 min of UV exposure for switching from CB to W and 5 min of dark storage in oven (200°C) to recover the surface energy. We use crystal nanocellulose (CNC) on T-shaped micro-pillars (micro-hoodoos [1] Figure1-j) to make hierarchical structures. Photo-masked UV exposure causes the locally transition from CB to W.

AB - In this work we develop fast and locally photo-switching transition between rolling state (Cassie-Baxter (CB)) and sticky state (Wenzel (W)) using photo-switchable titanium dioxide (TiO2) deposited by atomic layer deposition (ALD). It takes 1 min of UV exposure for switching from CB to W and 5 min of dark storage in oven (200°C) to recover the surface energy. We use crystal nanocellulose (CNC) on T-shaped micro-pillars (micro-hoodoos [1] Figure1-j) to make hierarchical structures. Photo-masked UV exposure causes the locally transition from CB to W.

KW - nanocellulose

KW - photo-switching

KW - superhydrophobic

M3 - Conference article in proceedings

SN - 978-0-9798064-7-6

SN - 978-1-63439-697-4

VL - 1

SP - 117

EP - 119

BT - 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences

T2 - 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014

Y2 - 26 October 2014 through 30 October 2014

ER -

Micro-writing under water droplet using photo-switchable titanium oxide on nanocellulose coated micro-hoodoos

Abstract

Conference

Keywords

Access to Document

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Cite this