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Transforming waste particles into valuable adsorbents via amyloid-mediated molecular engineering

Science China Chemistry 2025年第01期 317-328页

作者： Qingmin Yang jian zhao Yujia Zhang Xingyu Zhou Hao Ren Bowen Hu Zhongli Lei Lixin Chen Peng Yang School of Material and Chemical Engineering Bengbu University Anhui Provincial Engineering Laboratory of Silicon-Based Materials School of Chemistry and Chemical Engineering Northwestern Polytechnical University Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an Key Laboratory of Polymeric Soft Matter School of Chemistry and Chemical Engineering Shaanxi Normal University International Joint Research Center on Functional Fiber and Soft Smart Textile School of Chemistry and Chemical EngineeringShaanxi Normal University

The high-value utilization of industrial solid waste using a facile and eco-friendly process is of great interest and significance in reducing environmental pollution and developing a green circular economy. Herein, we propose an amyloid-mediated molecular engineering strategy to transform particulate waste into valuable adsorbents for metal ions. Our method has the advantage of aqueous solution fabrication under mild conditions without the use of high-temperature hydrothermal methods and toxic chemical reagents. Amyloid-mediated molecular engineering manipulates the phase transition of bovine serum albumin(BSA)on particulate waste surfaces, resulting in a remarkable ～3.1 times improvement in the adsorption capacity of fly ash, a typical industrial solid waste for gold ions after modification with the phase-transitioned BSA(PTB). The resultant adsorption ability was 69–1,980 times higher than those of conventional and emerging adsorbent materials such as ion exchange resins, activated carbon(AC), covalent organic frameworks(COFs), and metal-organic frameworks(MOFs). We further demonstrated the application of our PTB-modified materials in the recovery of precious metals from low-grade gold ore and electronic waste leachates. Consequently, this strategy could increase the value of waste materials nearly 27 times. In addition, this method is generally extendable to other conventional industrial adsorbents such as resin, clay, and Al2O3, and enhances their adsorption capabilities at least twofold. Overall, this work provides a simple and green approach for improving the adsorption performance of solid particles, and is expected to develop into a universal strategy for transforming waste particles into high-value-added products.

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Multidimensional Multiplicative Large Sets in Totally Minimal Systems

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Acta Mathematica Sinica,English Series 2023年第8期39卷 1635-1649页

作者： jian Jie zhao School of Mathematics Hangzhou Normal UniversityHangzhou 311121P.R.China

In this paper,it is shown that for a residual set of points in a totally minimal system with finitely many commuting homeomorphisms,the set of return times to any non-empty open set contains a subset with positive multidimensional multiplicative upper Banach density,extending a previous result by Glasscock,Koutsogiannis and ***,we give some combinatorial properties of the sets with positive multidimensional multiplicative upper Banach density.

关键词： Multidimensional multiplicative upper Banach density totally minimal systems

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研磨处理可注射牙髓细胞外基质促进牙髓再生

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中国组织工程研究 2025年第22期29卷 4663-4670页

作者：杨毓茜李文俊赵健陈岗大连医科大学附属第一医院口腔科辽宁省大连市116011

背景:可注射细胞外基质材料用于牙髓组织再生时,首先需要经过胃蛋白酶消化,再与其他基质成分如水凝胶结合使用,而这也意味着天然细胞外基质材料所保留的微环境遭到破坏。目的:探讨研磨处理条件下制备的可注射牙髓细胞外基质材料用于牙... 详细信息

背景:可注射细胞外基质材料用于牙髓组织再生时,首先需要经过胃蛋白酶消化,再与其他基质成分如水凝胶结合使用,而这也意味着天然细胞外基质材料所保留的微环境遭到破坏。目的:探讨研磨处理条件下制备的可注射牙髓细胞外基质材料用于牙髓组织再生的效果。方法:(1)将获取的猪牙来源牙髓组织经过脱细胞处理后制备成牙髓脱细胞基质材料,经过液氮冷冻、高速研磨处理后,制备成可注射牙髓细胞外基质材料,比较可注射牙髓细胞外基质材料和天然牙髓细胞外基质在细胞黏附效率和微结构方面的差异,免疫组化分析可注射牙髓细胞外基质中的细胞外基质蛋白质成分;(2)将接种有牙髓干细胞的可注射牙髓细胞外基质材料注入到牙本质基质材料构建的牙髓腔中,植入裸鼠皮下1,3,5周后取材,观察可注射牙髓细胞外基质材料的体内改建速率及其在裸鼠皮下的异位牙髓组织再生能力。结果与结论:(1)与天然牙髓细胞外基质相比,可注射牙髓细胞外基质材料显著提高了细胞黏附率,并保留了与天然牙髓细胞外基质相似的多孔胶原结构;(2)与天然牙髓细胞外基质相比,免疫组化染色显示可注射牙髓细胞外基质材料中层粘连蛋白、Ⅰ型胶原蛋白和整合素β1的表达没有显著变化,而纤连蛋白的表达显著下降;(3)体内实验显示,可注射牙髓细胞外基质材料具有优异的成血管能力,并促进了牙髓样组织的形成。结果表明,研磨处理的可注射牙髓细胞外基质材料可促进牙髓再生。

关键词：研磨人牙髓干细胞细胞外基质可注射牙髓组织再生支架材料

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Digital watermarking algorithm based on scale-invariant feature regions in non-subsampled contourlet transform domain

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Journal of Systems Engineering and Electronics 2015年第6期26卷 1310-1315页

作者： jian zhao Na Zhang jian Jia Huanwei Wang School of Information Science and Technology Northwest University

Contraposing the need of the robust digital watermark for the copyright protection field, a new digital watermarking algorithm in the non-subsampled contourlet transform （NSCT） domain is proposed. The largest energy sub-band after NSCT is selected to embed watermark. The watermark is embedded into scaleinvariant feature transform （SIFT） regions. During embedding, the initial region is divided into some cirque sub-regions with the same area, and each watermark bit is embedded into one sub-region. Extensive simulation results and comparisons show that the algorithm gets a good trade-off of invisibility, robustness and capacity, thus obtaining good quality of the image while being able to effectively resist common image processing, and geometric and combo attacks, and normalized similarity is almost all reached.

关键词： multi-scale geometric analysis (MGA) non-subsampled contourlet transform (NSCT) scale-invariant featureregion.

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Lensless ultrafast optical imaging

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Light(Science & Applications) 2022年第5期11卷 733-735页

作者： jian zhao Mingsheng Li Department of Electrical and Computer Engineering Boston UniversityBostonMA 02215USA

Lensless single-shot ultrafast optical imaging is realized by integrating an acousto-optic programmable dispersive filter with spectrally filtered sequentially time all-optical mapping photography,which enables indepe... 详细信息

关键词： optical sequentially filtered

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An overview of particle-based numerical manifold method and its application to dynamic rock fracturing

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Journal of Rock Mechanics and Geotechnical Engineering 2019年第3期11卷 684-700页

作者： Xing Li jian zhao School of Civil Engineering Southeast UniversityNanjing211189China Department of Civil Engineering Monash UniversityClaytonVIC3800Australia

This review summarizes the development of particle-based numerical manifold method(PNMM)and its applications to rock *** fundamental principle of numerical manifold method(NMM)is first briefly ***,the history of the newly developed PNMM is *** idea of PNMM and its simulation procedure are *** that PNMM could be regarded as an NMM-based model,a comparison of PNMM and NMM is discussed from several points of view in this ***,accomplished applications of PNMM to the dynamic rock fracturing are also ***,some recommendations are provided for the future work of PNMM.

关键词： Dynamic rock fracturing Numerical modeling Numerical manifold method(NMM) Particle-based numerical manifold method(PNMM)

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On Boolean elements and derivations in 2-dimension linguistic lattice implication algebras

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Applied Mathematics(A Journal of Chinese Universities) 2023年第2期38卷 274-292页

作者： ZHU Hua zhao jian-bin School of Mathematics and Statistics Zhengzhou UniversityZhengzhou 450001China Henan Academy of Big Data Zhengzhou UniversityZhengzhou 450001China Henan Key Laboratory of Financial Engineering Zhengzhou 450001China Key Laboratory of Big Data Analysis and Application Zhengzhou 450001China

A 2-dimension linguistic lattice implication algebra(2DL-LIA)can build a bridge between logical algebra and 2-dimension fuzzy linguistic *** this paper,the notion of a Boolean element is proposed in a 2DL-LIA and some properties of Boolean elements are *** derivations on 2DL-LIAs are introduced and the related properties of derivations are ***,it proves that the derivations on 2DL-LIAs can be constructed by Boolean elements.

关键词： derivation Boolean element Lattice implication algebra(LIA) 2-dimension linguistic lattice implication algebra(2DL-LIA) 2-dimension fuzzy linguistic information

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Discrete Methods Based on First Order Reversal Curves to Identify Preisach Model of Smart Materials

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Chinese Journal of Aeronautics 2007年第2期20卷 157-161页

作者： LI Fan zhao jian-hui School of Instrument Science and Opto-electronics Engineering Beijing University of Aeronautics and Astronautics Beijing 100083 China

Preisach model is widely used in modeling of smart materials. Although first order reversal curves （FORCs） have often found applications in the fields of physics and geology, they are able to serve to identify Preisach model. In order to clarify the relationship between the Preisach model and the first order reversal curves, this paper is directed towards：（1） giving the reason a first order reversal curve is introduced; （2） presenting, for identifying Preisach model, two discrete methods, which are analytically based on first order reversal curves. Herein also is indicated the solution＇s uniqueness of these two identifying methods. At last, the validity of these two methods is verified by simulating a real smart actuator both methods have been applied to.

关键词： first order reversal curve Preisach model smart material discrete identify

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A Gradient-Based Optimization Method for the Design of Layered Phononic Band-Gap Materials

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Acta Mechanica Solida Sinica 2016年第4期29卷 429-443页

作者： Yu Huang Shutian Liu jian zhao State Key Laboratory of Structural Analysis for Industrial Equipment Department of Engineering MechanicsDalian University of Technology

Phononic materials with specific band-gap characteristics at desired frequency ranges are in great demand for vibration and noise isolation, elastic wave filters, and acoustic devices. The attenuation coefficient curve depicts both the frequency range of band gap and the attenuation of elastic wave, where the frequency ranges corresponding to the none-zero attenuation coefficients are band gaps. Therefore, the band-gap characteristics can be achieved through maximizing the attenuation coefficient at the corresponding frequency or within the corresponding frequency range. Because the attenuation coefficient curve is not smooth in the frequency domain, the gradient-based optimization methods cannot be directly used in the design optimization of phononic band-gap materials to achieve the maximum attenuation within the desired frequency range. To overcome this difficulty, the objective of maximizing the attenuation coefficient is transformed into maximizing its Cosine, and in this way, the objective function is smoothed and becomes differentiable. Based on this objective function, a novel gradient-based optimization approach is proposed to open the band gap at a prescribed frequency range and to further maximize the attenuation efficiency of the elastic wave at a specific frequency or within a prescribed frequency range. Numerical results demonstrate the effectiveness of the proposed gradient-based optimization method for enhancing the wave attenuation properties.

关键词： optimization band gap gradient-based optimization two-step optimization approach

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Structure,Property,and Performance of Catalyst Layers in Proton Exchange Membrane Fuel Cells

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Electrochemical Energy Reviews 2023年第1期6卷 403-463页

作者： jian zhao Huiyuan Liu Xianguo Li Department of Mechanical and Mechatronics Engineering University of Waterloo200 University Avenue WestWaterlooON N2L 3G1Canada

Catalyst layer(CL)is the core component of proton exchange membrane(PEM)fuel cells,which determines the performance,durability,and ***,difficulties remain for a thorough understanding of the CLs’inhomogeneous structure,and its impact on the physicochemical and electrochemical properties,operating performance,and *** inhomogeneous structure of the CLs is formed during the manufacturing process,which is sensitive to the associated materials,composi-tion,fabrication methods,procedures,and *** state-of-the-art visualization and characterization techniques are crucial to examine the CL *** structure-dependent physicochemical and electrochemical properties are then thoroughly scrutinized in terms of fundamental concepts,theories,and recent progress in advanced experimental *** relation between the CL structure and the associated effective properties is also examined based on experimental and theoretical *** studies indicated that the CL inhomogeneous structure also strongly affects the performance and degradation of the whole fuel cell,and thus,the interconnection between the fuel cell performance,failure modes,and CL structure is comprehensively *** analytical model is established to understand the effect of the CL structure on the effective properties,performance,and durability of the PEM fuel ***,the challenges and prospects of the CL structure-associated studies are highlighted for the development of high-performing PEM fuel cells.

关键词： PEM fuel cell Catalyst layer Microstructure Effective property Performance Durability

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