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

Science China Chemistry 2025年第1期68卷 317-328页

作者： Qingmin Yang Jian Zhao Yujia Zhang Xingyu Zhou Hao ren Bowen Hu Zhongli Lei Lixin Chen Peng Yang Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi’an 710119China School of Material and Chemical Engineering Bengbu UniversityBengbu 233030China Anhui Provincial Engineering Laboratory of Silicon-Based Materials Bengbu 233030China Xi’an Key Laboratory of Polymeric Soft Matter School of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi’an 710119China International Joint Research Center on Functional Fiber and Soft Smart Textile School of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi’an 710119China School of Chemistry and Chemical Engineering Northwestern Polytechnical UniversityXi’an 710129China

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 ***,we propose an amyloid-mediated molecular engineering strategy to transform particulate waste into valuable adsorbents for metal *** method has the advantage of aqueous solution fabrication under mild conditions without the use of high-temperature hydrothermal methods and toxic chemical ***-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 ***,this strategy could increase the value of waste materials nearly 27 *** addition,this method is generally extendable to other conventional industrial adsorbents such as resin,clay,and Al_(2)O_(3),and enhances their adsorption capabilities at least ***,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.

关键词： amyloid-like protein aggregates surface engineering fly ash solid waste adsorption

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阶梯轴轴肩过渡曲线形状优化的实验分析

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机械管理开发 2003年第5期18卷 4-5,7页

作者：强旭东韩晋民任家骏吴风林太原理工大学山西太原030024

利用实验应力分析的电测手段,在扭转和弯曲工作条件下,对阶梯轴轴肩过渡曲线形状优化前后的应力集中变化进行了实验分析,获得了最佳的应力集中系数,验证了理论结果。

关键词：阶梯轴轴肩过渡曲线形状优化应力集中实验分析电测法

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Stokes–Einstein–Debye relation in TIP5P water

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Chinese Physics B 2025年第2期34卷 372-376页

作者： Gan ren School of Science Civil Aviation Flight University of ChinaGuanghan 628307China

The Stokes–Einstein–Debye(SED) relation in TIP5P water is tested with the original formula and its variants within the temperature range 240–390 K. The results indicate that although the variants explicitly break down, the original SED relation is almost valid. Compared with the Stokes–Einstein relation, no explicit decoupling is observed in translational and rotational motion. Variation of the effective hydrodynamic radius is critical to testing the validity of the SED relation.

关键词： Stokes–Einstein–Debye relation TIP5P water effective hydrodynamic radius Stokes'formula

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Zincophilic and hydrophobic bifunctional PFA-COOH-CNT artificial SEI film for highly stable Zn anode

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Nano Research 2025年第2期18卷 346-357页

作者： Lingyao Kuang Bohui Xu Long Zhang Zheshuai Lin Xingxing Gu Xiaolei ren Yanglong Hou Chongqing Key Laboratory of Catalysis and New Environmental Materials College of Environment and ResourcesChongqing 400067China Functional Crystals Lab Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China School of Materials Shenzhen Campus of Sun Yat-Sen UniversityShenzhen 518107China Beijing Key Laboratory for Magnetoelectric Materials and Devices(BKL-MMD) School of Materials Science and EngineeringPeking UniversityBeijing 100871China

Aqueous zinc-ion batteries(AZIBs)are regarded as one of the most promising rivals in the upcoming high-energy secondary battery market because of their safety and ***,the zinc dendrites growth and hydrogen evolution corrosion of the Zn anode have seriously restricted the application of ***,to overcome these constraints,a three-dimensional(3D)porous PFA-COOH-CNT artificial solid electrolyte interface(SEl)film with high hydrophobic and zincophilic properties was constructed on Zn anode surface by in-situ polymerization of furfuryl alcohol(FA)and carboxyl carbon nanotubes(COOH-CNT).A series of in-situ,ex-situ characterizations as well as the density functional theory(DFT)calculations reveal that the formed PFA-COOH-CNT SEI film with an abundant oxygen-containing group can provide abundant zincophilic sites and induce homogeneous deposition of Zn^(2+),as well as the hydrophobic alkyl and carbon skeleton in PFA-COOH-CNT SEI film can isolate the direct contact of H_(2)O with Zn anode,and inhibit the occurrence of hydrogen evolution reaction(HER).Accordingly,the Zn anode with PFA-COOH-CNT layer can attain an ultra-long cycle life of 2200 h at 1 mA·cm^(-2),1 mAh·cm^(-2).Simultaneously,the assembled PFA-COOH-CNT@ZnllV2Os full cell can also achieve a high reversible capacity of up to 150.2 mAh•g^(-1) at 1 A·g^(-1) after 400 cycles,with a high average coulombic efficiency(CE)of 98.8%.The designed PFA-COOH-CNT artificial SEI film provides a broad prospect for highly stable zinc anode,and can also be extended to other energy storage systems based on metal anodes.

关键词： Zn anode PFA-COOH-CNT solid electrolyte interface(SEI)film zincophilic hydrophobic

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Exosomes:the next-generation therapeutic platform for ischemic stroke

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Neural Regeneration Research 2025年第5期20卷 1221-1235页

作者： Wenjing Yin Hongyin Ma Yang Qu Jiaxin ren Yingying Sun Zhen-Ni Guo Yi Yang Stroke Center Department of NeurologyFirst Hospital of Jilin UniversityChangchunJilin ProvinceChina Neuroscience Research Center Department of NeurologyFirst Hospital of Jilin UniversityChangchunJilin ProvinceChina

Current therapeutic strategies for ischemic stroke fall short of the desired objective of neurological functional ***,there is an urgent need to develop new methods for the treatment of this *** are natural cell-derived vesicles that mediate signal transduction between cells under physiological and pathological *** have low immunogenicity,good stability,high delivery efficiency,and the ability to cross the blood–brain *** physiological properties of exosomes have the potential to lead to new breakthroughs in the treatment of ischemic *** rapid development of nanotechnology has advanced the application of engineered exosomes,which can effectively improve targeting ability,enhance therapeutic efficacy,and minimize the dosages *** in technology have also driven clinical translational research on *** this review,we describe the therapeutic effects of exosomes and their positive roles in current treatment strategies for ischemic stroke,including their antiinflammation,anti-apoptosis,autophagy-regulation,angiogenesis,neurogenesis,and glial scar formation reduction ***,it is worth noting that,despite their significant therapeutic potential,there remains a dearth of standardized characterization methods and efficient isolation techniques capable of producing highly purified *** optimization strategies should prioritize the exploration of suitable isolation techniques and the establishment of unified workflows to effectively harness exosomes for diagnostic or therapeutic applications in ischemic ***,our review aims to summarize our understanding of exosome-based treatment prospects in ischemic stroke and foster innovative ideas for the development of exosome-based therapies.

关键词： blood–brain barrier electroacupuncture engineering exercise exosomes ischemic stroke mesenchymal stem cells microglia neuroprotection stents

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A Deep Learning Estimation Method for Temperature-Induced Girder End Displacements of Suspension Bridges

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Structural Durability & Health Monitoring 2025年第2期19卷 307-325页

作者： Yao Jin Yuan ren Chong-Yuan Guo Chong Li Zhao-Yuan Guo Xiang Xu School of Transportation Southeast UniversityNanjing210096China Department of Engineering Guangzhou Expressway Operation Management Co.Ltd.Guangzhou510000China Department of Engineering CCCC Highway Bridge National Engineering Research Center Co.Ltd.Beijing100088China Department of Engineering Jiangsu Provincial Transportation Engineering Construction BureauNanjing210004China

To improve the accuracy of thermal response estimation and overcome the limitations of the linear regression model and Artificial Neural Network(ANN)model,this study introduces a deep learning estimation method specifically based on the Long Short-Term Memory(LSTM)network,to predict temperature-induced girder end displacements of the Dasha Waterway Bridge,a suspension bridge in ***,to enhance data quality and select target sensors,preprocessing based on the sigma rule and nearest neighbor interpolation is applied to the raw ***,to eliminate the high-frequency components from the displacement signal,the wavelet transform is ***,the linear regression model and ANN model are established,whose results do not meet the requirements and fail to address the time lag effect between temperature and *** study proceeds to develop the LSTM network model and determine the optimal parameters through hyperparameter sensitivity ***,the results of the LSTM network model are discussed by a comparative analysis against the linear regression model and ANN model,which indicates a higher accuracy in predicting temperatureinduced girder end displacements and the ability to mitigate the time-lag *** be more specific,in comparison between the linear regression model and LSTM network,the mean square error decreases from 6.5937 to 1.6808 and R2 increases from 0.683 to 0.930,which corresponds to a 74.51%decrease in MSE and a 36.14%improvement in *** to ANN,with an MSE of 4.6371 and an R2 of 0.807,LSTM shows a decrease in MSE of 63.75%and an increase in R2 of 13.23%,demonstrating a significant enhancement in predictive performance.

关键词： Suspension bridges thermal response girder end displacement deep learning

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Effect of two-pass rolling of textured roll and polished roll on surface topography and mechanical properties of 316L stainless steel ultra-thin strip

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Journal of Iron and Steel Research International 2025年第1期32卷 186-197页

作者： Zeng-qiang Zhang Xi Liao Zhong-kai ren Zhen-hua Wang Ya-xing Liu Tao Wang Qing-xue Huang College of Mechanical and Vehicle Engineering Taiyuan University of TechnologyTaiyuan030024ShanxiChina Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment of Ministry of Education Taiyuan University of TechnologyTaiyuan030024ShanxiChina National Key Laboratory of Metal Forming Technology and Heavy Equipment Taiyuan University of TechnologyTaiyuan030024ShanxiChina Shanxi TISCO Stainless Steel Precision Strip Co. Ltd.Taiyuan030032ShanxiChina

The textured roll and polished roll were applied instead of the ground roll in a 20-high mill to conduct two-pass rolling of 316L stainless steel strip with thickness of 0.027 *** the two-pass rolling with the textured roll and polished roll(TPR),the surface roughness of the strip is dramatically reduced,and the surface topographical anisotropy index is diminished to 30.9%of the initial *** with the strip rolled using the ground roll in both passes(GGR),the elongation of TPR rolled strip is obviously improved,and the mechanical property anisotropy is greatly *** anisotropy index of tensile strength and elongation are 42.58%and 52.59%of that of GGR rolled strip,which is mainly attributed to the significant decrease of the texture intensity of the strip by TPR *** results indicate that TPR process can obtain the stainless steel ultra-thin strip with smooth and uniform surface topography and good mechanical properties.

关键词： Textured roll Polished roll Surface topography Mechanical property Stainless steel ultra-thin strip

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Bacterial indole-3-propionic acid inhibits macrophage IL-1β production through targeting methionine metabolism

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Science China Life Sciences 2025年

作者： Ziyi Han Jian Fu Aiyan Gong Wenkai ren State Key Laboratory of Livestock and Poultry Breeding College of Animal Science South China Agricultural University Animal Disease-resistant Nutrition Key Laboratory of Sichuan Province Sichuan Agricultural University China Institute of Veterinary Drug Control

The gut microbiota plays key roles in host health by shaping the host immune responses through their metabolites, like indole derivatives from tryptophan. However, the direct role of these indole derivatives in macrophage fate decision and the underlying mechanism remains unknown. Here, we found that bacterial indole-3-propionic acid(IPA) downregulates interleukin-1beta(IL-1β) production in M1 macrophages through inhibition of nuclear factor-kappa B(NF-κB) signaling. Mechanistically, IPA binds specifically with methionine adenosyltransferase 2A(MAT2A) to promote S-adenosylmethionine(SAM) synthesis, which facilitates the DNA methylation of ubiquitin-specific peptidase 16(USP16, a deubiquitinase), and in turn promotes Toll-like receptor 4(TLR4) ubiquitination and NF-κB inhibition. Furthermore,IPA administration attenuates sepsis in mouse models induced by lipopolysaccharides(LPS), showcasing its potential as a microbial-derived adjunct in alleviating inflammation. Collectively, our findings reveal a newly found microbial metabolite-immune system regulatory pathway mediated by IPA.

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Electroacupuncture stimulation of auricular concha region improves loss of control over stress induced depression-like behavior by modulating 5-hydroxytryptamine 1A receptor

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Journal of Traditional Chinese Medicine 2025年

作者： LI Yongfeng CHEN Xinyi ren Wei QIAO Haifa Acupuncture and Moxibustion College， Shaanxi University of Traditional Chinese Medicine Faculty of Education， Shaanxi Normal University

OBJECTIVE: To observe whether electroacupuncture stimulation of auricular concha region （EA-ACR） on behavior changes of depression by loss of control over stress model （LOC）， and whether its effect is improved by regulating the expression levels of hydroxytryptamine （serotonin， 5-HT） 1A receptor (5-HT1AR)/hydroxytryptamine （serotonin， 5-HT） 2A receptor (5-HT1AR) in ***: LOC was prepared using a Skinner box， and EA-ACR to observe behavioral changes， and Western Blot was used to detect the changes of 5-HT1AR/5-HT2AR in the hippocampus， and then observe the changes of EA-ACR behavior after microinjection of 5-HT1AR/5-HT2AR antagonist into the hippocampus. RESULTS: EA-ACR improve depressive-like behavior， up-regulated 5-HT1AR expression and down-regulated 5-HT2AR expression in hippocampal brain area. EA-ACR did not improve depression-like behavior after hippocampal microinjection of 5-HT1AR antagonist， while injection of 5-HT2AR antagonists can improve depression-like behaviors. CONCLUSION: EA-ACR can improve depressive-like behaviors. Loss of control over stress leads to up-regulation of 5-HT1AR and down-regulation of 5-HT2AR in the hippocampus， while EA-ACR mainly improves depressive behavior by regulating 5-HT1AR in Hip.

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Privacy-preserving explainable AI: a survey

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Science China(Information Sciences) 2025年第1期68卷 23-56页

作者： Thanh Tam NGUYEN Thanh Trung HUYNH Zhao ren Thanh Toan NGUYEN Phi Le NGUYEN Hongzhi YIN Quoc Viet Hung NGUYEN School of Information and Communication Technology Griffith University School of Computer and Communication Sciences Ecole Polytechnique Federale de Lausanne Faculty of Mathematics and Computer Science University of Bremen Faculty of Information Technology HUTECH University Department of Computer Science Hanoi University of Science and Technology School of Electrical Engineering and Computer Science The University of Queensland

As the adoption of explainable AI(XAI) continues to expand, the urgency to address its privacy implications intensifies. Despite a growing corpus of research in AI privacy and explainability, there is little attention on privacy-preserving model explanations. This article presents the first thorough survey about privacy attacks on model explanations and their countermeasures. Our contribution to this field comprises a thorough analysis of research papers with a connected taxonomy that facilitates the categorization of privacy attacks and countermeasures based on the targeted explanations. This work also includes an initial investigation into the causes of privacy leaks. Finally, we discuss unresolved issues and prospective research directions uncovered in our analysis. This survey aims to be a valuable resource for the research community and offers clear insights for those new to this domain. To support ongoing research, we have established an online resource repository, which will be continuously updated with new and relevant findings.

关键词： privacy-preserving explainable AI privacy attacks privacy defences PrivEx PPXAI

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