JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
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IF 9.4
Xin Li,Jian Zhang,Jie Liu,Feng Zhang,Siyuan Luo,Huaiqiang Ba,Yu Zhang,Xuhui Xu,Zhichao Liu
Due to the sensitivity to water, the all-inorganic CsPbBr 3 nanocrystals have been widely applied in information encryption with spatial dimensions. However, the absence of time-dimension information limits the information capacity for the application of CsPbBr 3 . In this work, the CsPbBr 3 nanocrystal was combined with water-sensitive borophosphate glass, achieving decomposing/recrystallization of CsPbBr 3 nanocrystal with multi-dimension. The addition of SiO 2 confirms that the collapse of the borophosphate glass network structure causes the exposure of the CsPbBr 3 nanocrystals. The decomposition and recrystallization mechanism of CsPbBr 3 nanocrystals in glass-ceramics upon encountering water has been verified. Finally, an information encryption strategy, using the mixture of CsPbBr 3 glass ceramic and sodium carboxymethylcellulose as ink, is designed via adopting screen-printing technology, which not only provides a new idea for the preparation of CsPbBr 3 nanocrystals, but also establish a new avenue for the information encryption technology.
研究领域:
材料科学
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光学工程
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信息安全
✓ 已验证
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
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2021
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IF 5.161
Kai Liu,Xiangxin Xu,Huiping Liu,Zitian Liu,Kaixuan Zhao,Yunhao Ma,Kai Zhang
This study addresses the classic problems of high water solubility, hydrophilicity and low tensile strength of soybean protein isolate films. The effects of incorporation of sodium caseinate and transglutaminase treatment on the properties of film-forming solutions and their resultant films were systematically studied, changes in the former explaining improved properties of the latter. Increases in protein molecular weight, particle size, and viscosity, and decreases in lysine residue content of the solutions confirmed the formation of new macromolecular proteins following transglutaminase cross-linking. Increased hydrophobicity of proteins revealed the reason for decreases in water sensitivity of the films. The tensile strength and the hydrophobicity of the films significantly increased, while water solubility, water vapor permeability and elongation at break decreased by 37 %, 32 % and 71 %, respectively, in the presence of sodium caseinate and transglutaminase. In general, the coexistence of sodium caseinate and transglutaminase treatment significantly improve critical properties of soybean protein isolate-based films, particularly water sensitivity and tensile strength, and expand their potential applications in humid environments.
研究领域:
食品科学
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材料科学
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生物技术
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产品关联
DOI
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 48
·35490-35497
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IF 3.9
Lili Xie,Haiyan Qiu,Yuxin Chen,Yingxue Lu,Yanyan Chen,Lanlan Chen,Shanwen Hu
Zero-dimensional (0D) halide perovskites have garnered significant interest due to their novel properties in optoelectronic and energy applications. However, the mechanisms underlying their phase transformations and fluorescence properties remain poorly understood. In this study, we have synthesized a micron-scale 0D perovskite observable under confocal laser scanning microscopy (CLSM). This approach enables us to trace the phase transformation process from 0D to three-dimensional (3D) structures, offering a deeper understanding of the underlying mechanisms. Remarkably, we discovered that this in situ transformation is highly sensitive to water, allowing for label-free fluorescent analysis of trace amounts of water in organic solvents through the phase transformation process. Additionally, we have designed a reusable paper strip for humidity analysis leveraging this sensitivity as an application of the micron scale material. Our findings not only elucidate the physicochemical properties of perovskites but also expand the potential of halide perovskite materials in analytical chemistry.
研究领域:
材料科学
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光电
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分析化学
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纳米技术
✓ 已验证
DOI
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2024
·
IF 7.4
Shaochan Duan,Xiaonan Wu,Hongyu Wang,Jianying Hu,Yingcheng Luan,Tao Ma
To enhance the environmental sustainability and pavement performance of steel bridge deck paving, a novel semi self-compacting cold mix polyurethane mixture (CMPU-10) for steel bridge deck paving was specifically designed and evaluated. Herein, this study presents the first comprehensive documentation of the research process involved in the mix design of CMPU-10. Initially, based on the theory of maximum density curve, a gradation with a Talbot index ( n ) of 0.40 was identified as the preliminary gradation for designing CMPU-10 by void ratio, compressive strength and slump tests. Subsequently, the aggregate grade-by-grade filling test revealed the critical influence of sieve sizes (0.075 mm, 0.6 mm, and 2.36 mm) on the mixture dense degree. From these findings, an in-depth analysis of the effects of aggregate passage under the key sieve on the degree of mixture density, compressive strengths, and flow properties led to the determination of the gradation range of CMPU-10. The optimum binder-aggregate ratio for the median gradation was determined to be 9.2%. Finally, wheel tracking, semi-circular bending (SCB) and freeze-thaw splitting tests showed that the designed CMPU-10 exhibits superior high-temperature stability performance, low-temperature cracking resistance and moisture susceptibility compared to the TAF epoxy asphalt mixture (EA-10). This paper not only provides a new potential low-carbon material for steel bridge deck paving projects, but also establishes a theoretical foundation for the optimization design and promotion polyurethane mixture.
研究领域:
土木工程
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材料科学
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环境工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）