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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202308437
|2 doi
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|a eng
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| 100 |
1 |
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|a Jin, Tonghui
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Structural Colors from Amyloid-Based Liquid Crystals
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|c 2024
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|a Text
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|a ƒaComputermedien
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|a Date Revised 22.02.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a 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
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|a Journal Article
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|a amyloid fibrils
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|a chiral
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4 |
|a cholesteric liquid crystals
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| 650 |
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4 |
|a photonic bandgap
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| 650 |
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|a structural color
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| 700 |
1 |
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|a Yuan, Ye
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bagnani, Massimo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Chao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Bin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mezzenga, Raffaele
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 8 vom: 01. Feb., Seite e2308437
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g volume:36
|g year:2024
|g number:8
|g day:01
|g month:02
|g pages:e2308437
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202308437
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