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Hierarchical propagation of structural features in protein nanomaterials

Kamada, Ayaka (author)
KTH,Kemi,University Of Cambridge,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
Herneke, Anja (author)
Sveriges lantbruksuniversitet (SLU),Swedish University of Agricultural Sciences (SLU),Department of Molecular Sciences, SLU, Swedish University of Agricultural Sciences, BioCentrum, Almas allé 5, SE-756 61, Uppsala, Sweden
Lopez-Sanchez, Patricia, 1977 (author)
Chalmers tekniska högskola,Chalmers University of Technology,Department of Molecular Sciences, SLU, Swedish University of Agricultural Sciences, BioCentrum, Almas allé 5, SE-756 61, Uppsala, Sweden
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Harder, Constantin (author)
Technische Universität München (TUM),Technical University of Munich (TUM),Deutsches Elektronen-Synchrotron (DESY),Deutsches Elektronen-Synchrotron, Notkestr. 85, D-22607 Hamburg, Germany;Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, D-85748 Garching, Germany
Ornithopoulou, Eirini (author)
KTH,Proteinteknologi,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
Wu, Qiong (author)
KTH,Biokompositer,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
Wei, Xinfeng (author)
Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
Schwartzkopf, Matthias (author)
Deutsches Elektronen-Synchrotron (DESY),Deutsches Elektronen-Synchrotron, Notkestr. 85, D-22607 Hamburg, Germany
Mueller-Buschbaum, Peter (author)
Technische Universität München (TUM),Technical University of Munich (TUM),Heinz Maier-Leibniz Zentrum (MLZ), Technische Universität München, Lichtenbergstraße. 1, D-85748 Garching, Germany;Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, D-85748 Garching, Germany
Roth, (author)
Deutsches Elektronen-Synchrotron (DESY),Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH),Deutsches Elektronen-Synchrotron, Notkestr. 85, D-22607 Hamburg, Germany;Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, SE-100 44, Stockholm, Sweden
Hedenqvist, Mikael S. (author)
KTH,Fiber- och polymerteknologi,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
Langton, Maud (author)
Sveriges lantbruksuniversitet (SLU),Swedish University of Agricultural Sciences (SLU),Department of Molecular Sciences, SLU, Swedish University of Agricultural Sciences, BioCentrum, Almas allé 5, SE-756 61, Uppsala, Sweden
Lendel, Christofer (author)
KTH,Tillämpad fysikalisk kemi,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
Wei, Xin-Feng (author)
KTH,Fiber- och polymerteknologi
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 (creator_code:org_t)
2022
2022
English.
In: Nanoscale. - : Royal Society of Chemistry (RSC). - 2040-3372 .- 2040-3364. ; 14:6, s. 2502-2510
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https://pubs.rsc.org...
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https://urn.kb.se/re...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Natural high-performance materials have inspired the exploration of novel materials from protein building blocks. The ability of proteins to self-organize into amyloid-like nanofibrils has opened an avenue to new materials by hierarchical assembly processes. As the mechanisms by which proteins form nanofibrils are becoming clear, the challenge now is to understand how the nanofibrils can be designed to form larger structures with defined order. We here report the spontaneous and reproducible formation of ordered microstructure in solution cast films from whey protein nanofibrils. The structural features are directly connected to the nanostructure of the protein fibrils, which is itself determined by the molecular structure of the building blocks. Hence, a hierarchical assembly process ranging over more than six orders of magnitude in size is described. The fibril length distribution is found to be the main determinant of the microstructure and the assembly process originates in restricted capillary flow induced by the solvent evaporation. We demonstrate that the structural features can be switched on and off by controlling the length distribution or the evaporation rate without losing the functional properties of the protein nanofibrils.

Subject headings

NATURVETENSKAP  -- Kemi -- Fysikalisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Physical Chemistry (hsv//eng)
NATURVETENSKAP  -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
NATURVETENSKAP  -- Biologi -- Biofysik (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Biophysics (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP  -- Medicinsk bioteknologi -- Biomaterialvetenskap (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Medical Biotechnology -- Biomaterials Science (hsv//eng)

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