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Structuring of Functional Spider Silk Wires, Coatings, and Sheets by Self-Assembly on Superhydrophobic Pillar Surfaces
KTH, Skolan för elektro- och systemteknik (EES), Mikro- och nanosystemteknik.ORCID-id: 0000-0002-8925-2815
KTH, Skolan för bioteknologi (BIO), Proteinteknologi.
KTH, Skolan för bioteknologi (BIO), Proteinteknologi.
KTH, Skolan för elektro- och systemteknik (EES), Mikro- och nanosystemteknik.ORCID-id: 0000-0001-8248-6670
2018 (engelsk)Inngår i: Advanced Materials, ISSN 0935-9648, E-ISSN 1521-4095, Vol. 30, nr 3, artikkel-id 1704325Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Spider silk has recently become a material of high interest for a large number of biomedical applications. Previous work on structuring of silk has resulted in particles (0D), fibers (1D), films (2D), and foams, gels, capsules, or microspheres (3D). However, the manufacturing process of these structures is complex and involves posttreatment of chemicals unsuitable for biological applications. In this work, the self-assembly of recombinant spider silk on micropatterned superhydrophobic surfaces is studied. For the first time, structuring of recombinant spider silk is achieved using superhydrophobic surfaces under conditions that retain the bioactivity of the functionalized silk. By tuning the superhydrophobic surface geometry and the silk solution handling parameters, this approach allows controlled generation of silk coatings, nanowires, and sheets. The underlying mechanisms and governing parameters are discussed. It is believed that the results of this work pave the way for fabrication of silk formations for applications including vehicles for drug delivery, optical sensing, antimicrobial coatings, and cell culture scaffolds.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2018. Vol. 30, nr 3, artikkel-id 1704325
Emneord [en]
spider silk, superhydrophobic, nanowires, coating, self-assembly, patterning
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-219393DOI: 10.1002/adma.201704325ISI: 000429097600018Scopus ID: 2-s2.0-85037617442OAI: oai:DiVA.org:kth-219393DiVA, id: diva2:1162681
Forskningsfinansiär
Swedish Research Council, 621-2014-6200
Merknad

QC 20171212

Tilgjengelig fra: 2017-12-05 Laget: 2017-12-05 Sist oppdatert: 2018-05-03bibliografisk kontrollert

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Gustafsson, LinneaJansson, RonnieHedhammar, Myvan der Wijngaart, Wouter
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