Protein nanofibrils and their use as building blocks of sustainable materials

Lendel, Christofer; Solin, Niclas

doi:10.1039/d1ra06878d

Cited by 36 publications

(38 citation statements)

References 259 publications

(361 reference statements)

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“…However, the ability to perform mixing in the absence of solvents allows for mechanochemical supramolecular modification of proteins. Milling can be employed to mix a water‐soluble protein powder with hydrophobic dyes [117,118a,119,120] . When the resulting hybrid material is dissolved in water, the hydrophobic effect will act as a cohesive force keeping the hydrophobic dyes associated with the protein.…”

Section: Mechanochemistry Vs Solvent‐based Chemistrymentioning

confidence: 99%

Mechanochemistry: New Tools to Navigate the Uncharted Territory of “Impossible” Reactions

et al. 2022

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Mechanochemical transformations have made chemists enter unknown territories, forcing a different chemistry perspective. While questioning or revisiting familiar concepts belonging to solution chemistry, mechanochemistry has broken new ground, especially in the panorama of organic synthesis. Not only does it foster new "thinking outside the box", but it also has opened new reaction paths, allowing to overcome the weaknesses of traditional chemistry exactly where the use of well-established solution-based methodologies rules out progress. In this Review, the reader is introduced to an intriguing research subject not yet fully explored and waiting for improved understanding. Indeed, the study is mainly focused on organic transformations that, although impossible in solution, become possible under mechanochemical processing conditions, simultaneously entailing innovation and expanding the chemical space.This publication is part of a joint Special Collection of Chemistry-Methods and ChemSusChem including invited contributions focusing on "Methods and Applications in Mechanochemistry". Please visit chemsuschem.org/ collections to view all contributions.

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Section: Mechanochemistry Vs Solvent‐based Chemistrymentioning

confidence: 99%

Mechanochemistry: New Tools to Navigate the Uncharted Territory of “Impossible” Reactions

et al. 2022

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“… 39 − 43 PNFs have lengths in the μm range and diameters up to about 10 nm. 44 A wide range of proteins have been demonstrated to form PNFs, including proteins isolated from plants and industrial side streams, 45 and many interesting materials systems incorporating PNFs have been developed. 46 − 50 An interesting approach for formation of electrically conductive PNF materials is functionalization with conductive polymers.…”

Section: Introductionmentioning

confidence: 99%

Protein-Based Flexible Conductive Aerogels for Piezoresistive Pressure Sensors

Yuan

Solin

2022

ACS Appl. Bio Mater.

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Gelatin is an excellent gelling agent and is widely employed for hydrogel formation. Because of the poor mechanical properties of gelatin when dry, gelatin-aerogels are comparatively rare. Herein we demonstrate that protein nanofibrils can be employed to improve the mechanical properties of gelatin aerogels, and the materials can moreover be functionalized with a an electrically conductive polyelectrolyte resulting in formation of an elastic electrically conductive aerogel that can be employed as a piezoresistive pressure sensor. The aerogel sensor shows a good linear relationship in a wide pressure range (1.8–300 kPa) with a sensitivity of 1.8 kPa –1 . This work presents a convenient way to produce electrically conductive elastic aerogels from low-cost protein precursors.

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“…PNFs can be formed from a wide range of proteins, many of which are available in large quantities and low cost (e.g., from plant resources or industrial side streams). [ 11 ] Herein, hen egg white lysozyme (HEWL) is employed as protein source. HEWL is available in large quantities (as food additive E1105) at relatively low‐cost.…”

Section: Introductionmentioning

confidence: 99%

Water Processable Bioplastic Films from Functionalized Protein Fibrils

Yuan

Solin

2022

Adv Materials Inter

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A combination of mechanochemistry and aqueous self‐assembly is employed to prepare protein nanofibrils (PNFs) functionalized with perylene diimide (PDI) dyes. These materials are then mixed with poly(vinyl alcohol) (PVA) and casted into bioplastic films. The functionalization process not only results in luminescent hybrid materials, but the presence of the dye modifies the physical properties of the PNFs. Films formed from PNFs functionalized with PDIs display anisotropic organization, which enables emission of polarized light. Crucially, the presence of PDI dyes improves the stability of PNF‐PVA films in water and moreover the films are processable when wet. By applying water, films can be glued together or self‐healed by applying water. Mechanochemical methodology can thus be employed for modifying properties of protein materials. This represents a new highly flexible and novel strategy for tuning both properties and functionality of protein materials.

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Protein nanofibrils and their use as building blocks of sustainable materials

Abstract: Protein nanofibrils produced from renewable resources provide opportunities to create novel materials for sustainable development.

Cited by 36 publications

References 259 publications

Mechanochemistry: New Tools to Navigate the Uncharted Territory of “Impossible” Reactions

Mechanochemistry: New Tools to Navigate the Uncharted Territory of “Impossible” Reactions

Protein-Based Flexible Conductive Aerogels for Piezoresistive Pressure Sensors

Water Processable Bioplastic Films from Functionalized Protein Fibrils

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