Intelligent dual-responsive cellulose surfaces via surface-initiated ATRP
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Updated: Jul 3, 2026

Preparation of Thermoresponsive Nanostructured Surfaces for Tissue Engineering
Published on: March 1, 2016
Josefina Lindqvist1, Daniel Nyström, Emma Ostmark
1Department of Fibre and Polymer Technology, Royal Institute of Technology, KTH School of Chemical Science and Engineering, Stockholm, Sweden.
Abstract:
Novel thermo-responsive cellulose (filter paper) surfaces of N-isopropylacrylamide (NIPAAm) and pH-responsive cellulose surfaces of 4-vinylpyridine (4VP) have been achieved via surface-initiated ATRP. Dual-responsive (pH and temperature) cellulose surfaces were also obtained through the synthesis of block-copolymer brushes of PNIPAAm and P4VP. With changes in pH and temperature, these "intelligent" surfaces showed a reversible response to both individual triggers, as indicated by the changes in wettability from highly hydrophilic to highly hydrophobic observed by water contact angle measurements. Adjusting the composition of the grafted block-copolymer brushes allowed for further tuning of the wettability of these "intelligent" cellulose surfaces.
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