Projekteja vuodessa
Abstrakti
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.
Alkuperäiskieli | Englanti |
---|---|
Artikkeli | eaaw2541 |
Julkaisu | Science Advances |
Vuosikerta | 5 |
Numero | 9 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 13 syysk. 2019 |
OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Sormenjälki
Sukella tutkimusaiheisiin 'Biomimetic composites with enhanced toughening using silk-inspired triblock proteins and aligned nanocellulose reinforcements'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.Projektit
- 3 Päättynyt
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Biomimetiska adhesiver
Linder, M. (Vastuullinen tutkija)
01/09/2018 → 31/08/2022
Projekti: Academy of Finland: Other research funding
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AI hämähäkin seitti
Linder, M. (Vastuullinen tutkija)
01/01/2018 → 31/12/2021
Projekti: Academy of Finland: Other research funding
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Uusi tie silkkiin: Silkki-materiaalien biopohjainen tuotanto
Linder, M. (Vastuullinen tutkija)
01/01/2017 → 31/12/2020
Projekti: Academy of Finland: Other research funding
Lehtileikkeet
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Wood Fibre and Spider Silk Mix Could Rival Plastic
Aranko, A. S., Linder, M. & Ikkala, O.
17/09/2019
1 kohde/ Medianäkyvyys
Lehdistö/media: Esiintyminen mediassa