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Aligned cellulose nanocrystals and directed nanoscale deposition of colloidal spheres
KTH Royal Institute of Technology, Sweden.ORCID iD: 0000-0002-9816-5270
2014 (English)In: Cellulose, ISSN 0969-0239, E-ISSN 1572-882X, Vol. 21, no 3, p. 1591-1599Article in journal (Refereed) Published
Abstract [en]

Cellulose nanocrystals are aligned in wrinkled polydimethylsiloxane templates and transferred to polyethyleneimine-coated silica surfaces in a printing process similar to microcontact printing. The highly aligned nanorods were deposited onto the surfaces with a line-to-line distance of 225-600 nm without loss of alignment. It was also possible to repeat the transfer process on the same surface at a 90-degree angle to create a network structure. This demonstrates the versatility of the technique and creates more options for advanced multilayering of materials. To demonstrate that the surface properties of the anionic cellulose nanorods were unaffected by the transfer process and to prove the concept of functionalizing transferred particles, cationic latex particles were electrostatically self-assembled onto the cellulose nanorods. The directed deposition of these particles resulted in excellent site specificity and the highest resolution to date for controlled deposition of colloids on an electrostatically patterned surface.

Place, publisher, year, edition, pages
Kluwer Academic Publishers , 2014. Vol. 21, no 3, p. 1591-1599
Keywords [en]
Cellulose; Colloids; Deposition; Electron device manufacture; Nanorods; Printing; Self assembly; Silicones, Cellulose nano-crystals; Directed assembly; Surface patterning; Templated; Wrinkled PDMS, Cellulose derivatives, Cellulose; Cellulose Derivatives; Colloids; Deposition; Polysilicones; Printing
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-68243DOI: 10.1007/s10570-014-0205-7Scopus ID: 2-s2.0-84901201525OAI: oai:DiVA.org:ri-68243DiVA, id: diva2:1817438
Available from: 2023-12-06 Created: 2023-12-06 Last updated: 2023-12-06Bibliographically approved

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Fall, Andreas

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