CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Jingyuan Hu,Yaqun Han,Xin Sun,Wenbo Wu,Jiaming Huyan,Suli Wu
Fabricating large-area, crack-free colloid photonic crystals (PCs) with highly saturated and robust structural color is essential for their practical applications, such as in the fields of aesthetic decoration, color printing, and textile coloring. However, due to the inhomogeneity of evaporation-induced assembly processes, the fabrication of structure-controllable and large-area PCs with rare defects remains a significant challenge. Here, a large-area, crack-free photonic crystal coating was prepared using a finely controlled doctor-blade-assisted assembly method on a pre-wetted porous leather substrate. The mixture of polymethyl methacrylate spheres suspension (12.5 wt%) and polyacrylate nano-binders was used as prepared without post-treatment. Pre-wetting the porous leather can increase fluid flow in the liquid film and effectively counteract the outward capillary force during the evaporation-induced self-assembly process, thereby reducing the cracks in the PC. Moreover, incorporating polyacrylate nano-binders improves structure stability and further prevents crack formation in the PC coating on leather. The structural colors’ richness can be tuned by varying the particle size, enabling coverage across the entire visible light spectrum. More importantly, applying a waterborne polyurethane encapsulation layer significantly enhances the mechanical and chemical stability of the colorful, enabling it to withstand over 100 cycles of friction, bending, and acid-base soaking without damage.
研究领域:
材料科学
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化学工程
✓ 已验证
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-12
·
IF 15.7
Feng Zeyu,Li Jialei,Yang Peng,Xu Xiangxiang,Wang Di,Li Jiahe,Zhang Chutian,Li Jingguo,Zhang Hongli,Zou Gang,Chen Xin
Multimodal optical-materials are highly desirable due to their advantages in enhancing information security, though independent modulation is challenging, especially accurately controlling the orthogonal relationship between the structural coloration (SC) and fluorescence (FL) pattern. Herein, we report a strategy which combines programmable structural coloration and switchable circularly polarized luminescence (CPL) for multimodal information encryption. Using photomask with aligned grating, programmable periodic patterns are fabricated on a polydiacetylene (PDA) gel film, which produces image in tunable structural colors. Introducing a chiral fluorescence layer containing perovskite nanocrystals and twisted-stacking Ag nanowires (NWs) bilayers, which provides stimuli-responsive FL and CPL with high dissymmetry factor ( g lum , up to 1.3). Importantly, the structural coloration information and FL patterns (including CPL pattern) can be independently modulated without mutual interference, even selectively concealed or exposed by varying microstructure design of the cross-linked PDA gel or by acetonitrile treatment.
研究领域:
材料科学
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光学
·
化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
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IF 9.7
Biao Li,Defei Zhang,Hualin Wu,Chenze Qi,Dekun Ma,Dongpeng Yang,Qianqian Fu,Shaoming Huang
Electrically responsive photonic crystals (ERPCs) capable of adjusting their structural colors in response to electric fields are promising next-generation smart optical materials. However, the poor color saturation and stability of conventional ERPCs significantly limit their practical applications. Here, a new kind of ZnS-silica/diethylene glycol ERPC was designed and fabricated by directly non-close-assembling ZnS-silica core–shell particles with high refractive indexes into a diethylene glycol with a low dielectric constant. Compared to traditional ERPCs, the as-fabricated ERPC exhibits: 1) brilliant structural colors and broad photonic bandgaps, owing to the large refractive index contrast; and 2) good stability under voltages, improved at least two magnitude, due to the combined intense solvation repulsion and enhanced electrostatic repulsion. This work provides new insight for designing and fabricating advanced ERPCs and will promote their practical applications in low-power displays, anti-counterfeiting, and optical devices.
研究领域:
材料科学
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光学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Ke Deng,Yafei Wang,Jinsheng Li,Xianli Fan,Lei Wang,Javad Harati,Pengfei Chen,Lijun Wang,Zheng Zhou,Xianggui Chen,Jua Kim,Haobo Pan,Tailin Guo
Surface patterns are widespread in many organisms, providing the abilities of camouflage, recognition, sexual selection, and survival in creatures. Inspired by these features, structural color stripes over large and complex surfaces were presented based on a meniscus rapidly receding assembly process triggered by lowered pressure and heat. The pattern method allows building blocks to rapidly self-organize into structural color stripes with adjustable morphology and color within several minutes on 2D or complex 3D surfaces. We demonstrate that the structural color striped pattern can be used in anti-counterfeiting, mimicking structural color organisms, and manipulation of stem cell behaviors at multiple levels. This lowered pressure and heat triggered pattern method for engineering scalable structural color stripes provides a powerful tool which cannot be achieved by conventional methods and will promote the wide application of structural color pattern in sensing, artificial robots, anti-counterfeiting, and so on.
研究领域:
材料科学
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生物仿生学
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
DYES AND PIGMENTS
·
2024
·
IF 4.1
XiaoHua Cheng,Shuai Peng,Zhengfei Tan,Yahui Zhou,Huiyu Yang,Bo Deng
Structural color is an important way to achieve the ecological coloring of textiles. SiO 2 microspheres with sizes in the range of 200–337 nm were synthesized by the Stober method and then covered with highly light-absorbing melanin PDA to form SiO 2 @PDA photonic crystals. The SiO 2 @PDA photonic crystals were assembled onto the surface of white cotton fabrics by gravity deposition to achieve structural color. The addition of polyvinylpyrrolidone (PVP) enhances interfacial bonding by forming multiple hydrogen bonds between its lactam group and the phenolic hydroxyl group of PDA, resulting in a structured color cotton fabric with high color fastness. Scanning electron microscopy (SEM) was used to study the structure and morphology of SiO 2 @PDA microspheres. The chemical compositions of PDA and PVP were surveyed by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The surface structural color of cotton fabrics was investigated by UV–Vis reflectance spectroscopy.
研究领域:
材料科学
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纺织工程
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生态学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Cleaner Production
·
2021
·
IF 9.297
Yinchun Fang,Xinhua Liu,Hongliang Zheng,Hailong Liu
Traditional textile dyeing industry usually use chemical pigments and dyes, which bring about a large amount of colored wastewater causing serious environmental pollution . Replacing the traditional high pollution dyeing methods to realize eco-friendly dyeing is very important to the textile dyeing industry, structural colorization maybe one of the most promising methods. In this study, a novel approach was proposed to fabricate eco-friendly coloration of textile originating from polydopamine (PDA) structural color nanofilm with high colorfastness. Four different bright colors were obtained by the polymerization of PDA nanofilm with different reaction times on cotton fabric. However, capillary tension during the formation of PDA nanofilm and weak interaction with fabric substrate resulted in cracking and poor colorfastness. The novel synthesis adhesive of poly (glycidyl methacrylate co-polyethylene glycol methyl ether methacrylate) containing reactive epoxy groups was used to avoid cracking and improve the colorfastness which would form covalent bond on the interface between structural color film and substrate. Therefore, crack-free PDA structural color nanofilm with high colorfastness on cotton fabric surface was obtained. This facile approach provide novel idea for eco-friendly dyeing different kinds of textiles with structural color boosting the cleaner dyeing in textile industrial field.
研究领域:
材料科学
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纺织工程
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
DYES AND PIGMENTS
·
2017
·
IF 3.473
Feihu Li,Bingtao Tang,Shufen Zhang
Artificial structural color materials from self-assembled colloidal spheres, which are similar to natural opals, are currently a subject of extensive investigation. However, the shortage of available colloidal spheres, especially polymer spheres for building artificial opals is still a major restriction for their practical application. Herein, a new kind of artificial opals with iridescent structural colors were prepared from the self-assembly of novel polythiourethane microspheres (PTUMS). The PTUMS with narrow size distribution were prepared through a simple phase separation process. Particle sizes can be easily adjusted from 175 nm to 304 nm, which is important for the construction of tunable structural colors. Sufficient surface charges were obtained from the reaction between the terminal isocyanate groups and water. Thus, PTUMS can arranged into periodic opal structures through self-assembly process and generate iridescent structural colors. The present study provided an effective and convenient approach to prepare artificial structural color materials from new kind of polymer microspheres. This was very important for the practical application of artificial opals in coating and paints.
研究领域:
材料科学
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光学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2013
·Vol. 2
·期 11
·1990-1994
·
IF 0
Yuxia Luo,Jianfei Zhang,Aihua Sun,Chengyi Chu,Shi Zhou,Jianjun Guo,Tao Chen,Gaojie Xu
A shell size adjustable core–shell nano building block of SiO2@TiO2 using high refractive index materials of TiO2 as shell to coat SiO2 colloidal NPs by one step approach was prepared. Corresponding colloidal suspension of SiO2@TiO2 photonic crystals in propylene carbonate showed a highly adjustable structure color change with the high-refractive index upon applying of electric fields.
研究领域:
材料科学
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光学
✓ 已验证
产品关联
DOI
RSC Advances
·
2022
·Vol. 12
·期 6
·3602-3610
·
IF 4.036
Tianchen Wei,Xiaowei Zhu,Xueni Hou,Yijiang Li,Aoqing Dong,Xinying Jiang,Yu Huang,Xue Dong,Xiangrong Wang,Guoqiang Chen,Tieling Xing
Caffeic acid (CA), as a natural plant-derived polyphenol, has been widely used in surface coating technology in recent years due to its excellent properties. In this work, caffeic acid was introduced into the preparation of photonic band gap materials. By controlling the variables, a reasonable preparation method of polystyrene (PS) @polycaffeic (PCA)–Cu(II) core–shell microspheres was achieved: 1 mmol L−1 cupric chloride anhydrous (CuCl2), 3 mmol L−1 sodium perborate tetrahydrate (NaBO3·4H2O), 2 mmol L−1 CA and 2 g L−1 polystyrene (PS) were reacted at 50 °C for 10 min to prepare PS@PCA–Cu(II) core–shell microspheres through rapid oxidative polymerization of CA coated PS of different particle diameters. The amorphous photonic crystal structure was self-assembled through thermal assisted-gravity sedimentation, resulting in structural color nanomaterials with soft and uniform color, no angle dependence, stable mechanical fastness and excellent UV resistance.
研究领域:
材料科学
·
仿生学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LIQUID CRYSTALS
·
2023
·
IF 2.2
Yongxing Guo,Jinghua Zhao,Yi Li,Wei Liu,Yonggang Yang
Polymer-stabilised cholesteric liquid crystal (PSCLC) films attracted much attention in decoration and anti-counterfeiting. Herein, the PSCLC films were prepared using the mixtures of epoxy monomers through cationic photopolymerisation. The structural colour was tunable by changing the concentration of chiral dopant in the reaction mixture and polymerisation temperature. Due to polymerisation shrinkage, microcracks were formed at the surfaces of the PSCLC films, which originated from the oily streak defects of the CLC mixtures. Colourful patterns were prepared by controlling the polymerisation temperature. In addition, since light can leak out through the microcracks, the tetraphenylethylene-doped patterns can be applied in anti-counterfeiting.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Site Luo,Yangjie Li,Wei Yang,Wenjing Gao,Haihu Yu,Niu Huang
A simple yet powerful approach to obtain structural color is the amorphous assembly of colloidal spheres, which is also referred to as the amorphous photonic structure or photonic glasses (PGs). Additionally, the functionalization of the colloidal spheres as building blocks can further endow the resulting PGs with multifunctions. Herein, we have developed a facile strategy to prepare SiO2 colloidal spheres with concentrically embedded carbon dots (CDs). Notably, the CDs are prepared and silane-functionalized simultaneously, which enables the perfect incorporation of CDs into the Si–O network during the Stöber reaction and thus leads to the formation of a concentric SiO2/CD interlayer within the obtained SiO2 spheres. Moreover, the obtained SiO2/CD spheres can be applied as photonic pigments by assembling them into PGs, which exhibit structural color under daylight and fluorescence under UV illumination. With incorporation of carbon black, the structural color saturation and fluorescence intensity can be further manipulated. Owing to the combination of structural colored PGs and fluorescent CDs, our study can offer inspiration for color- and fluorescence-related applications such as sensing, in vivo imaging, LEDs, and anticounterfeiting.
研究领域:
材料科学
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光学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
National Science Review
·
2019
·Vol. 7
·期 3
·644-651
·
IF 13.222
Cai Lijun,Wang Huan,Yu Yunru,Bian Feika,Wang Yu,Shi Keqing,Ye Fangfu,Zhao Yuanjin
Artificial micromotors have a demonstrated value in the biomedical area. Attempts to develop this technology tend to impart micromotors with novel functions to improve the values. Herein, we present novel structural color-barcode micromotors for the multiplex assays. We found that, by rapidly extracting solvent and assembling monodispersed nanoparticles in droplets, it could form stomatocyte colloidal crystal clusters, which not only showed striking structural colors and characteristic reflection peaks due to their ordered nanoparticles arrangement, but also provided effective cavities for the integration of functional elements. Thus, the micromotors with catalysts or magnetic elements in their cavities, as well as with the corresponding structural color coding, could be achieved by using the platinum and ferric oxide dispersed pre-gel to fill and duplicate the stomatocyte colloidal crystal clusters. We have demonstrated that the self-movement of these structural color-barcode micromotors could efficiently accelerate the mixing speed of the detection sample and greatly increase the probe–target interactions towards faster and more sensitive single or multiplex detection, and the magnetism of these barcode micromotors enables the flexible collection of the micromotors, which could facilitate the detection processes. These features make the stomatocyte structural color-barcode micromotors ideal for biomedical applications.
研究领域:
生物医学工程
·
纳米技术
✓ 已验证
DOI
高影响因子
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