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Fluid Flow Programming in Paper-Derived Silica–Polymer Hybrids

Dubois, Christelle ; Herzog, Nicole ; Rüttiger, Christian ; Geißler, Andreas ; Grange, Eléonor ; Kunz, Ulrike ; Kleebe, Hans-Joachim ; Biesalski, Markus ; Meckel, Tobias ; Gutmann, Torsten ; Gallei, Markus ; Andrieu-Brunsen, Annette (2022):
Fluid Flow Programming in Paper-Derived Silica–Polymer Hybrids. (Postprint)
In: Langmuir, 33 (1), ACS Publications, ISSN 0743-7463, e-ISSN 1520-5827,
DOI: 10.26083/tuprints-00021675,

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Item Type: Article
Origin: Secondary publication service
Status: Postprint
Title: Fluid Flow Programming in Paper-Derived Silica–Polymer Hybrids
Language: English

In paper-based devices, capillary fluid flow is based on length-scale selective functional control within a hierarchical porous system. The fluid flow can be tuned by altering the paper preparation process, which controls parameters such as the paper grammage. Interestingly, the fiber morphology and nanoporosity are often neglected. In this work, porous voids are incorporated into paper by the combination of dense or mesoporous ceramic silica coatings with hierarchically porous cotton linter paper. Varying the silica coating leads to significant changes in the fluid flow characteristics, up to the complete water exclusion without any further fiber surface hydrophobization, providing new approaches to control fluid flow. Additionally, functionalization with redox-responsive polymers leads to reversible, dynamic gating of fluid flow in these hybrid paper materials, demonstrating the potential of length scale specific, dynamic, and external transport control.

Journal or Publication Title: Langmuir
Volume of the journal: 33
Issue Number: 1
Place of Publication: Darmstadt
Publisher: ACS Publications
Collation: 22 Seiten
Uncontrolled Keywords: mesoporous silica hybrid paper, sol-gel chemistry, redox-gating, capillary fluid flow, paper-based microfluidic devices
Classification DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
Divisions: 10 Department of Biology > Membrane Dynamics
11 Department of Materials and Earth Sciences > Material Science > Physical Metallurgy
07 Department of Chemistry > Fachgebiet Makromolekulare Chemie
Date Deposited: 20 Jul 2022 12:07
Last Modified: 20 Jul 2022 12:07
DOI: 10.26083/tuprints-00021675
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-216753
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21675
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