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Fluid flow control in cotton threads with mesoporous silica coatings

Mikolei, Joanna J. ; Stanzel, Mathias ; Pardehkorram, Raheleh ; Lehn, Robert ; Ceolin, Marcelo ; Andrieu‐Brunsen, Annette (2023)
Fluid flow control in cotton threads with mesoporous silica coatings.
In: Advanced Materials Interfaces, 10 (21)
doi: 10.1002/admi.202300211
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

Microfluidic devices are important, e.g. in the field of point of care diagnostics. They are of special importance, if they are fabricated out of cheap and renewable materials. Tackling complex separation or sensing problems profits from modular three‐dimensional fluidic devices. Using cotton threads as renewable material allows the modular design of three‐dimensional fluidic devices and networks. Here, fluidic threads with modular designed and tunable thread wettability are presented. The wettability is gradually adjusted from highly hydrophilic to hydrophobic. The thread wettability directly affects the fluid imbibition velocity as well as the distance, which the fluid imbibes into the thread. The wettability adjustment is based on a simple dense or mesoporous silica coating applied onto the cotton thread using sol‐gel chemistry and evaporation induced self‐assembly. In addition to wettability, the mesoporosity and the pore functionalization are used to tune the fluid velocity within the thread. Connecting different silica functionalized threads into one device by knotting them together, fluids can be guided through this network in a predicted manner, which allows a modular design of 3D microfluidic thread‐based devices.

Typ des Eintrags: Artikel
Erschienen: 2023
Autor(en): Mikolei, Joanna J. ; Stanzel, Mathias ; Pardehkorram, Raheleh ; Lehn, Robert ; Ceolin, Marcelo ; Andrieu‐Brunsen, Annette
Art des Eintrags: Bibliographie
Titel: Fluid flow control in cotton threads with mesoporous silica coatings
Sprache: Englisch
Publikationsjahr: 2023
Ort: Weinheim
Verlag: Wiley-VCH
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Advanced Materials Interfaces
Jahrgang/Volume einer Zeitschrift: 10
(Heft-)Nummer: 21
Kollation: 9 Seiten
DOI: 10.1002/admi.202300211
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Kurzbeschreibung (Abstract):

Microfluidic devices are important, e.g. in the field of point of care diagnostics. They are of special importance, if they are fabricated out of cheap and renewable materials. Tackling complex separation or sensing problems profits from modular three‐dimensional fluidic devices. Using cotton threads as renewable material allows the modular design of three‐dimensional fluidic devices and networks. Here, fluidic threads with modular designed and tunable thread wettability are presented. The wettability is gradually adjusted from highly hydrophilic to hydrophobic. The thread wettability directly affects the fluid imbibition velocity as well as the distance, which the fluid imbibes into the thread. The wettability adjustment is based on a simple dense or mesoporous silica coating applied onto the cotton thread using sol‐gel chemistry and evaporation induced self‐assembly. In addition to wettability, the mesoporosity and the pore functionalization are used to tune the fluid velocity within the thread. Connecting different silica functionalized threads into one device by knotting them together, fluids can be guided through this network in a predicted manner, which allows a modular design of 3D microfluidic thread‐based devices.

Freie Schlagworte: microfluidic in threads, nanopore functionalization, nanopores, silica coatings, sol‐gel‐chemistry, surface modification
ID-Nummer: 2300211
Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 540 Chemie
Fachbereich(e)/-gebiet(e): 07 Fachbereich Chemie
07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Makromolekulare Chemie
Hinterlegungsdatum: 23 Jan 2024 08:55
Letzte Änderung: 23 Jan 2024 08:55
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