ShanghaiTech University Knowledge Management System
| Uniformly aligned flexible magnetic films from bacterial nanocelluloses for fast actuating optical materials | |
| 2022-10-03 | |
| Source Publication | NATURE COMMUNICATIONS
 |
| EISSN | 2041-1723 |
| Volume | 13Issue:1 |
| Status | 已发表 |
| DOI | 10.1038/s41467-022-33615-z |
| Abstract | Naturally derived biopolymers have attracted great interest to construct photonic materials with multi-scale ordering, adaptive birefringence, chiral organization, actuation and robustness. Nevertheless, traditional processing commonly results in non-uniform organization across large-scale areas. Here, we report magnetically steerable uniform biophotonic organization of cellulose nanocrystals decorated with superparamagnetic nanoparticles with strong magnetic susceptibility, enabling transformation from helicoidal cholesteric (chiral nematic) to uniaxial nematic phase with near-perfect orientation order parameter of 0.98 across large areas. We demonstrate that magnetically triggered high shearing rate of circular flow exceeds those for conventional evaporation-based assembly by two orders of magnitude. This high rate shearing facilitates unconventional unidirectional orientation of nanocrystals along gradient magnetic field and untwisting helical organization. These translucent magnetic films are flexible, robust, and possess anisotropic birefringence and light scattering combined with relatively high optical transparency reaching 75%. Enhanced mechanical robustness and uniform organization facilitate fast, multimodal, and repeatable actuation in response to magnetic field, humidity variation, and light illumination. |
| URL | 查看原文 |
| Indexed By | SCIE |
| Language | 英语 |
| Scopus ID | 2-s2.0-85139090596 |
| Source Data | Scopus |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/241045 |
| Collection | 物质科学与技术学院_硕士生 物质科学与技术学院_PI研究组_叶春洪组 |
| Corresponding Author | Tsukruk, Vladimir V. |
| Affiliation | 1.State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan,430200,China 2.School of Materials Science and Engineering,Georgia Institute of Technology,Atlanta,30332-0245,United States 3.State Key Laboratory of Polymer Materials Engineering,Polymer Research Institute of Sichuan University,Chengdu,610065,China 4.School of Physical Science and Technology,Shanghai Tech University,Shanghai,201210,China |
| Recommended Citation GB/T 7714 | Zhang, Xiaofang,Kang, Saewon,Adstedt, Katarina,et al. Uniformly aligned flexible magnetic films from bacterial nanocelluloses for fast actuating optical materials[J]. NATURE COMMUNICATIONS,2022,13(1). |
| APA | Zhang, Xiaofang.,Kang, Saewon.,Adstedt, Katarina.,Kim, Minkyu.,Xiong, Rui.,...&Tsukruk, Vladimir V..(2022).Uniformly aligned flexible magnetic films from bacterial nanocelluloses for fast actuating optical materials.NATURE COMMUNICATIONS,13(1). |
| MLA | Zhang, Xiaofang,et al."Uniformly aligned flexible magnetic films from bacterial nanocelluloses for fast actuating optical materials".NATURE COMMUNICATIONS 13.1(2022). |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
Edit Comment
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.