دورية أكاديمية
Structural Colors from Amyloid-Based Liquid Crystals
| العنوان: | Structural Colors from Amyloid-Based Liquid Crystals |
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| المؤلفون: | Jin, Tonghui, Yuan, Ye, id_orcid:0 000-0003-3020-0700, Bagnani, Massimo, id_orcid:0 000-0002-1326-1600, Wu, Chao, id_orcid:0 000-0003-3517-1064, Liu, Bin, Mezzenga, Raffaele |
| المصدر: | Advanced Materials, 36 (8) |
| بيانات النشر: | Wiley-VCH |
| سنة النشر: | 2024 |
| المجموعة: | ETH Zürich Research Collection |
| مصطلحات موضوعية: | amyloid fibrils, chiral, photonic bandgap, cholesteric liquid crystals, structural color |
| الوصف: | The helical periodicity and layered structure in cholesteric liquid crystals (CLCs) may be tuned to generate structural color according to the Bragg's law of diffraction. A wide range of natural-based materials such as condensed DNA, collagen, chitin, cellulose, and chiral biopolymers exhibit cholesteric phases with left-handed helixes and ensued structural colors. Here, the possibility of using amyloid CLCs is reported to prepare films with iridescent color reflection and opposite handedness. Right-handed CLCs assembled by left-handed amyloid fibrils are dried into layered structures with variable pitch controlled by the addition of glucose. Circularly polarized light with the same handedness of amyloid CLCs helix is reflected in the Bragg regime. Varying the drying speed leads to the switching between films with a rainbow-like color gradient and large area uniform color. It is confirmed that the origin of the colors derives from the layered structures of the amyloid CLCs, given the negligeable birefringence of the films, calculated from optical rotatory dispersion. These findings provide a facile approach to constructing biosourced cholesteric materials and introduce an original class of proteinaceous materials for the generation of structural colors from right-handed circularly polarized light. ; ISSN:0935-9648 ; ISSN:1521-4095 |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/application/pdf |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/001118509600001; http://hdl.handle.net/20.500.11850/648554Test |
| DOI: | 10.3929/ethz-b-000648554 |
| الإتاحة: | https://doi.org/20.500.11850/648554Test https://doi.org/10.3929/ethz-b-000648554Test https://doi.org/10.1002/adma.202308437Test https://hdl.handle.net/20.500.11850/648554Test |
| حقوق: | info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by/4.0Test/ ; Creative Commons Attribution 4.0 International |
| رقم الانضمام: | edsbas.19748F5 |
| قاعدة البيانات: | BASE |
| DOI: | 10.3929/ethz-b-000648554 |
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