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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.2c01004
|2 doi
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|a pubmed24n1141.xml
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|a (DE-627)NLM342531425
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|a (NLM)35731984
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Xia, Ke
|e verfasserin
|4 aut
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|a Biomimetic Chiral Photonic Materials with Tunable Metallic Colorations Prepared from Chiral Melanin-like Nanorods for UV Shielding, Humidity Sensing, and Cosmetics
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 07.07.2022
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|a Date Revised 24.08.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Many biological species combine the helical organization of cellulose or chitin microfibrils with broadband light absorption of black melanin to produce brilliant structural colors with metallic and glossy effects and other diverse functions. In this work, based on core-shell CNCPDA chiral nanorods consisting of cellulose nanocrystals (CNCs) as the core and melanin-like polydopamine (PDA) as the shell that can form well-defined chiral liquid crystal phases, we report chiral photonic materials that closely mimic the unique coloration mechanisms and functionalities mastered by several biological species. The photonic films formed by such single CNC@PDA nanorods have brilliant iridescent structural colors originating from selective reflection of circularly polarized lights by the helical organization of CNC@PDAs across the films. Furthermore, the colors of such films have background-independent brightness, high visibility, and metallic effects that arise from the light absorption of the PDA component. Especially, the color ranges and metallic effects of the films can be conveniently tuned by varying the thickness of the PDA shell. In addition, the UV absorption and hygroscopic properties of PDA endow these CNC@PDA films with efficient broadband UV shielding and sensitive humidity-induced dynamic color changes. Due to the mussel-like superior adhesion of PDA, CNC@PDA-based photonic coatings can be formed conformably onto diverse kinds of substrates. A shiny eye shadow with viewing angle-dependent colorful patterns was used to demonstrate the potential applications. With combinations of multiple unique properties in one photonic material fabricated from a single building block, these CNC@PDA-based films are expected to have potential applications in cosmetics, UV protection, anticounterfeiting, chiral reflectors, etc
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Cosmetics
|2 NLM
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|a Melanins
|2 NLM
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|a Cellulose
|2 NLM
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|a 9004-34-6
|2 NLM
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| 700 |
1 |
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|a Zheng, Xiaonan
|e verfasserin
|4 aut
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1 |
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|a Wang, Yuhan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhong, Weiting
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dong, Ziyue
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ye, Zihan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Zhenkun
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 38(2022), 26 vom: 05. Juli, Seite 8114-8124
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:38
|g year:2022
|g number:26
|g day:05
|g month:07
|g pages:8114-8124
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|u http://dx.doi.org/10.1021/acs.langmuir.2c01004
|3 Volltext
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