Biomimetic composites with enhanced toughening using silk-inspired triblock proteins and aligned nanocellulose reinforcements

Tutkimustuotos: Lehtiartikkeli

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Biomimetic composites with enhanced toughening using silk-inspired triblock proteins and aligned nanocellulose reinforcements. / Mohammadi, Pezhman; Sesilja Aranko, A.; Landowski, Christopher P.; Ikkala, Olli; Jaudzems, Kristaps; Wagermaier, Wolfgang; Linder, Markus B.

julkaisussa: Science Advances, Vuosikerta 5, Nro 9, eaaw2541, 13.09.2019.

Tutkimustuotos: Lehtiartikkeli

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Bibtex - Lataa

@article{f6d9b0e41e5c4525b7d7ce3fe84282eb,
title = "Biomimetic composites with enhanced toughening using silk-inspired triblock proteins and aligned nanocellulose reinforcements",
abstract = "Silk and cellulose are biopolymers that show strong potential as future sustainable materials. They also have complementary properties, suitable for combination in composite materials where cellulose would form the reinforcing component and silk the tough matrix. A major challenge concerns balancing structure and functional properties in the assembly process. We used recombinant proteins with triblock architecture, combining structurally modified spider silk with terminal cellulose affinity modules. Flow alignment of cellulose nanofibrils and triblock protein allowed continuous fiber production. Protein assembly involved phase separation into concentrated coacervates, with subsequent conformational switching from disordered structures into b sheets. This process gave the matrix a tough adhesiveness, forming a new composite material with high strength and stiffness combined with increased toughness. We show that versatile design possibilities in protein engineering enable new fully biological materials and emphasize the key role of controlled assembly at multiple length scales for realization.",
author = "Pezhman Mohammadi and {Sesilja Aranko}, A. and Landowski, {Christopher P.} and Olli Ikkala and Kristaps Jaudzems and Wolfgang Wagermaier and Linder, {Markus B.}",
year = "2019",
month = "9",
day = "13",
doi = "10.1126/sciadv.aaw2541",
language = "English",
volume = "5",
journal = "Science Advances",
issn = "2375-2548",
number = "9",

}

RIS - Lataa

TY - JOUR

T1 - Biomimetic composites with enhanced toughening using silk-inspired triblock proteins and aligned nanocellulose reinforcements

AU - Mohammadi, Pezhman

AU - Sesilja Aranko, A.

AU - Landowski, Christopher P.

AU - Ikkala, Olli

AU - Jaudzems, Kristaps

AU - Wagermaier, Wolfgang

AU - Linder, Markus B.

PY - 2019/9/13

Y1 - 2019/9/13

N2 - Silk and cellulose are biopolymers that show strong potential as future sustainable materials. They also have complementary properties, suitable for combination in composite materials where cellulose would form the reinforcing component and silk the tough matrix. A major challenge concerns balancing structure and functional properties in the assembly process. We used recombinant proteins with triblock architecture, combining structurally modified spider silk with terminal cellulose affinity modules. Flow alignment of cellulose nanofibrils and triblock protein allowed continuous fiber production. Protein assembly involved phase separation into concentrated coacervates, with subsequent conformational switching from disordered structures into b sheets. This process gave the matrix a tough adhesiveness, forming a new composite material with high strength and stiffness combined with increased toughness. We show that versatile design possibilities in protein engineering enable new fully biological materials and emphasize the key role of controlled assembly at multiple length scales for realization.

AB - Silk and cellulose are biopolymers that show strong potential as future sustainable materials. They also have complementary properties, suitable for combination in composite materials where cellulose would form the reinforcing component and silk the tough matrix. A major challenge concerns balancing structure and functional properties in the assembly process. We used recombinant proteins with triblock architecture, combining structurally modified spider silk with terminal cellulose affinity modules. Flow alignment of cellulose nanofibrils and triblock protein allowed continuous fiber production. Protein assembly involved phase separation into concentrated coacervates, with subsequent conformational switching from disordered structures into b sheets. This process gave the matrix a tough adhesiveness, forming a new composite material with high strength and stiffness combined with increased toughness. We show that versatile design possibilities in protein engineering enable new fully biological materials and emphasize the key role of controlled assembly at multiple length scales for realization.

UR - http://www.scopus.com/inward/record.url?scp=85072256801&partnerID=8YFLogxK

U2 - 10.1126/sciadv.aaw2541

DO - 10.1126/sciadv.aaw2541

M3 - Article

VL - 5

JO - Science Advances

JF - Science Advances

SN - 2375-2548

IS - 9

M1 - eaaw2541

ER -

ID: 37054449