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LONG-TERM STORAGE OF NANOLITRE AND PICOLITRE LIQUID VOLUMES IN POLYMER MICROFLUIDIC DEVICES
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.ORCID iD: 0000-0003-4364-794X
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.ORCID iD: 0000-0001-9651-4900
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.ORCID iD: 0000-0002-0441-6893
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2015 (English)In: the 19th International Conference on Miniaturized Systems for Chemistry and Life Sciences (Micro TAS), The Chemical and Biological Microsystems Society , 2015, 1386-1388 p.Conference paper, Published paper (Refereed)
Abstract [en]

We introduce uncomplicated nanolitre (23 nL) and picolitre (3.5 pL) liquid volume encapsulation in Off-Stoichiometry Thiol-Ene-Epoxy polymer (OSTEmerTM322) wells using spontaneous room- temperature bonding of gold films to thiol and thioether groups present on the surface of the polymer for leak free sealing. First, we show liquid encapsulation within nL, and pL polymer wells by utilizing 100 nm thin Au-film transfer-bonding onto intermediately cured, and micropatterned OSTEmerTM322. This approach yielded 3 magnitude orders smaller liquid volume encapsulation than previously reported. Secondly, we show that encapsulated liquid can be stored for >116 h. Finally, we demonstrate encapsulated liquid release by thermopneumatic bursting. We conclude that OSTEmerTM322 is excellent for metal-film sealant integration in polymer microfluidic devices. 

Place, publisher, year, edition, pages
The Chemical and Biological Microsystems Society , 2015. 1386-1388 p.
Keyword [en]
Liquid encapsulation, bonding, off-stoichiometry thiol-ene-epoxy
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-176618Scopus ID: 2-s2.0-84983353764ISBN: 978-0-9798064-8-3 (print)OAI: oai:DiVA.org:kth-176618DiVA: diva2:868141
Conference
the 19th International Conference on Miniaturized Systems for Chemistry and Life Sciences
Note

QC 20160404

Available from: 2015-11-09 Created: 2015-11-09 Last updated: 2016-04-04Bibliographically approved

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Guo, MaoxiangVastesson, AlexanderHaraldsson, Tommyvan der Wijngaart, Wouter

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