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MoS_(2)Lubricate‑Toughened MXene/ANF Composites for Multifunctional Electromagnetic Interference Shielding

Nano-Micro Letters 2025年第2期17卷 358-371页

作者： Jiaen Wang Wei Ming Longfu chen Tianliang Song Moxi Yele hao Zhang Long Yang Gegen Sarula Benliang Liang Luting Yan Guangsheng Wang School of Physical Science and Engineering Beijing Jiaotong UniversityBeijing 100044People’s Republic of China Key Laboratory of Bio‑Inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191People’s Republic of China

The design and fabrication of high toughness electromagnetic interference(EMI)shielding composite films with diminished reflection are an imperative task to solve electromagnetic pollution *** MXene/ANF(aramid nanofibers)–MoS_(2)composite films with nacre-like layered structure here are fabricated after the introduction of MoS_(2)into binary MXene/ANF composite *** introduction of MoS_(2)fulfills an impressive“kill three birds with one stone”improvement effect:lubrication toughening mechanical performance,reduction in secondary reflection pollution of electromagnetic wave,and improvement in the performance of photothermal *** the introduction of MoS_(2)into binary MXene/ANF(mass ratio of 50:50),the strain to failure and tensile strength increase from 22.1±1.7%and 105.7±6.4 MPa and to 25.8±0.7%and 167.3±9.1 MPa,*** toughness elevates from 13.0±4.1 to 26.3±0.8 MJ m^(−3)(~102.3%)*** the reflection shielding effectiveness(SE_(R))of MXene/ANF(mass ratio of 50:50)decreases~10.8%.EMI shielding effectiveness(EMI SE)elevates to 41.0 dB(8.2–12.4 GHz);After the introduction of MoS_(2)into binary MXene/ANF(mass ratio of 60:40),the strain to failure increases from 18.3±1.9%to 28.1±0.7%(~53.5%),the SE_(R)decreases~22.2%,and the corresponding EMI SE is 43.9 *** MoS_(2)also leads to a more efficient photothermal conversion performance(~45 to~55℃).Additionally,MXene/ANF–MoS_(2)composite films exhibit excellent electric heating performance,quick temperature elevation(15 s),excellent cycle stability(2,2.5,and 3 V),and long-term stability(2520 s).Combining with excellent mechanical performance with high MXene content,electric heating performance,and photothermal conversion performance,EMI shielding ternary MXene/ANF–MoS_(2)composite films could be applied in many industrial *** work broadens how to achieve a balance between mechanical properties and versatility of composites in the case of high-function fillers.

关键词： MXene-MoS_(2) Lubrication toughening EMI shielding Photothermal conversion Electric heating performance

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Advances in Graphene‑Based Electrode for Triboelectric Nanogenerator

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Nano-Micro Letters 2025年第1期17卷 378-403页

作者： Bin xie Yuanhui Guo Yun chen hao Zhang Jiawei xiao Maoxiang Hou Huilong Liu Li Ma xin chen Chingping Wong State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

With the continuous development of wearable electronics,wireless sensor networks and other micro-electronic devices,there is an increasingly urgent need for miniature,flexible and efficient nanopower generation *** nanogenerator(TENG)technology can convert small mechanical energy into electricity,which is expected to address this *** the core component of TENG,the choice of electrode materials significantly affects its *** metal electrode materials often suffer from problems such as durability,which limits the further application of ***,as a novel electrode material,shows excellent prospects for application in TENG owing to its unique structure and excellent electrical *** review systematically summarizes the recent research progress and application prospects of TENGs based on graphene *** precision processing methods of graphene electrodes are introduced,and the applications of graphene electrode-based TENGs in various scenarios as well as the enhancement of graphene electrodes for TENG performance are *** addition,the future development of graphene electrode-based TENGs is also prospectively discussed,aiming to promote the continuous advancement of graphene electrode-based TENGs.

关键词： Triboelectric nanogenerator Precision processing Graphene electrode Self-powered sensor

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AZD1775 synergizes with SLC7A11 inhibition to promote ferroptosis

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Science China Life Sciences 2025年第1期 204-218页

作者： chen xiong Hong Ling Yingdan Huang Hanzhi Dong Bangxiang xie Qian hao xiang Zhou Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences Fudan University Department of Oncology Shanghai Medical CollegeFudan University Department of Breast Surgery Fudan University Shanghai Cancer CenterFudan University Department of Oncology First Affiliated Hospital of Nanchang University Beijing Institute of Hepatology Beijing Youan HospitalCapital Medical University Beijing Engineering Research Center for Precision Medicine and Transformation of Hepatitis and Liver Cancer Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer CenterFudan University Shanghai Key Laboratory of Medical Epigenetics International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology)Institutes of Biomedical SciencesFudan University

Tumor suppressor p53-mediated cell cycle arrest and DNA damage repair may exert cytoprotective effects against cancer therapies, including WEE1 inhibition. Considering that p53 activation can also lead to multiple types of cell death, the role of this tumor suppressor in WEE1 inhibitor-based therapies remains disputed. In this study, we reported that nucleolar stress-mediated p53 activation enhanced the WEE1 inhibitor AZD1775-induced ferroptosis to suppress lung cancer growth. Our findings showed that AZD1775 promoted ferroptosis by blocking cystine uptake, an action similar to that of Erastin. Meanwhile, inhibition of WEE1 by the WEE1 inhibitors or si RNAs induced compensatory upregulation of SLC7A11, which conferred resistance to ferroptosis. Mechanistically, AZD1775 prevented the enrichment of H3K9me3, a histone marker of transcriptional repression, on the SLC7A11 promoter by repressing the expression of the histone methyltransferase SETDB1, thereby enhancing NRF2-mediated SLC7A11 transcription. This finding was also validated using the H3K9me3 inhibitor BRD4770. Remarkably, we found that the nucleolar stress-inducing agent Actinomycin D(Act. D) inhibited SLC7A11 expression by activating p53, thus augmenting AZD1775-induced ferroptosis. Moreover, the combination of AZD1775 and Act. D synergistically suppressed wild-type p53-harboring lung cancer cell growth both in vitro and in vivo. Altogether, our study demonstrates that AZD1775 promotes ferroptosis by targeting cystine uptake but also mediates the adaptive activation of SLC7A11 through the WEE1-SETDB1 cascade and NRF2-induced transcription, and inhibition of SLC7A11 by Act. D boosts the anti-tumor efficacy of AZD1775 by enhancing ferroptosis in cancers with wild-type p53.

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

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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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国际商务仲裁中当事人应如何选择证据收集规则

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天中学刊 2001年第6期16卷 35-38页

作者：吴定喜林浩陈艳恩中南财经政法大学湖北武汉430074 河南商业高等专科学校河南郑州450045 驻马店商校河南驻马店463000

在国际商务仲裁中,如何进行证据收集,英美法系和民法法系有着不同的传统做法。不同做法可能导致不同的仲裁结果。来自不同法律背景的当事人都倾向于选择自己熟悉的规则,因此很难达成仲裁协议,不利于国际商务纠纷的解决。探讨出现这种现... 详细信息

在国际商务仲裁中,如何进行证据收集,英美法系和民法法系有着不同的传统做法。不同做法可能导致不同的仲裁结果。来自不同法律背景的当事人都倾向于选择自己熟悉的规则,因此很难达成仲裁协议,不利于国际商务纠纷的解决。探讨出现这种现象的原因,提出和总结解决这个问题的办法,说明在国际商务仲裁中当事人选择证据收集方法应该注意的几个问题,当具有一定的现实意义。

关键词：国际商务仲裁证据收集规则英美法系当事人仲裁协议民法法系

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肿瘤酸性微环境促进肾癌细胞株769-P体外侵袭及其lncRNA表达谱分析

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现代泌尿外科杂志 2018年第5期23卷 376-381页

作者：殷喜丰孙浩陈兵海江苏大学附属医院泌尿外科江苏镇江212000

目的探索肿瘤胞外酸性微环境对肾癌细胞769-P侵袭性的影响,并分析其长链非编码RNA(lncRNA)表达谱。方法使用pH6.6酸性培养基体外模拟肿瘤酸性微环境,将肾癌细胞769-P于酸性培养基中培养,作用时间梯为0h、0.5h、1h、2h、4h、8h,并得到相... 详细信息

目的探索肿瘤胞外酸性微环境对肾癌细胞769-P侵袭性的影响,并分析其长链非编码RNA(lncRNA)表达谱。方法使用pH6.6酸性培养基体外模拟肿瘤酸性微环境,将肾癌细胞769-P于酸性培养基中培养,作用时间梯为0h、0.5h、1h、2h、4h、8h,并得到相应培养条件下的肾癌细胞。使用荧光定量PCR检测Snail基因及其下游E-cadherin基因的表达;通过transwell肿瘤细胞体外侵袭实验分析酸性条件下培养的肾癌细胞其侵袭能力的改变;最后通过lncRNA表达谱芯片分析酸性培养基作用后,肾癌细胞769-P的lncRNA表达谱变化。结果 pH 6.6酸性培养液培养4h后肾癌细胞769-P的Snail基因表达水平较对照组即pH6.6酸性培养液培养0h组显著上调(P<0.05),下游E-cadherin基因表达与其呈负相关,即pH6.6酸性培养液培养4h组显著下调(P<0.05);transwell肿瘤细胞体外侵袭实验证实,经pH6.6酸性培养液培养4h,肾癌细胞769-P的侵袭性较对照组显著提高(P<0.05);lncRNA表达谱芯片筛选结果显示,与对照组相比,经pH6.6酸性培养液培养4h后,肾癌细胞769-P中BC040587、KCNQ1DN、PCAT-43表达水平上调(P<0.05),CTBP1-AS、MEG3表达水平下调(P<0.05)。结论肿瘤胞外酸性微环境增强肾癌细胞769-P的侵袭能力,其作用机制可能与lncRNA BC040587、KCNQ1DN、PCAT-43、CTBP1-AS、MEG3的异常表达有关。

关键词：酸性微环境肾癌侵袭 Snail lncRNA

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A facile enantioselective synthesis of (+)-rolipram via C-H insertion process

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合成化学 2004年第Z1期12卷 30-30页

作者： LIU Wei-jun chen Zhen-liang WANG Yuan-hua HU Qing-quan HUANG hao-xi chen Zhi-yong HU Wen-hao Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China Key Laboratory for Asymmetric Synthesis and Chirotechnology of Sichuan Province Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China

Rolipram, (±)-4-(3-cyclopentyloxyl-4-methoxylphenyl)-2-pyrrolidinone,is known as a potent and selective inhibitor of phosphodiesterase type Ⅳ(PDE Ⅳ)*** fact, although both enantiomers are active, the levorotatory isomer, for which several synthesis has been recently reported2, has proved to be the most active one. Hashimoto and Jung have repored rolipram's synthesis via intramolecular C-H insertion reaction of α -methoxylcarbonyl- α -diazoacetamide and α-phenylsulfonyl-α-diazoacetamide3,4. Based on the discovery of the excellent N-protecting group:cumyl, we have now explored a new and facile route to 1

关键词： Rolipram, enantioselective synthesis, C-H insertion, N-cumyl, chiral dirhodium(Ⅱ)carboxamide.

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Low-Temperature Fabrication of Stable Black-Phase CsPbI₃ Perovskite Flexible Photodetectors Toward Wearable Health Monitoring

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NANO-MICRO LETTERS 2025年第1期17卷 1-14页

作者： Zhao, Yingjie Sun, Yicheng Pei, Chaoxin Yin, xing Li, xinyi hao, Yi Zhang, Mengru Yuan, Meng Zhou, Jinglin chen, Yu Song, Yanlin Zhengzhou Univ Coll Chem Zhengzhou 450001 Peoples R China Zhengzhou Univ Pingyuan Lab Zhengzhou 450001 Peoples R China Chinese Acad Sci Inst Chem Key Lab Green Printing Beijing 100190 Peoples R China Chinese Acad Sci Tech Inst Phys & Chem Key Lab Bioinspired Mat & Interfacial Sci Beijing 100190 Peoples R China Chinese Acad Sci Inst High Energy Phys Beijing 100049 Peoples R China

Low-temperature fabrication of black-phase CsPbI3 perovskite films is first demonstrated by using diphenylphosphinic chloride additive under 30-50 degrees C, arising from the steric effect and chloride insertion ***-area high-quality all-inorganic perovskite films with fewer defects enhanced crystallographic orientation, and excellent environmental stability is *** record performances are demonstrated for flexible wearable photodetectors with a responsivity of 42.1 A W-1, a detectivity of 1.3 x 1014 Jones, high-fidelity image, photoplethysmography sensor functions, and high mechanical stability. Flexible wearable optoelectronic devices fabricated from organic-inorganic hybrid perovskites significantly accelerate the development of portable energy, biomedicine, and sensing fields, but their poor thermal stability hinders further applications. Conversely, all-inorganic perovskites possess excellent thermal stability, but black-phase all-inorganic perovskite film usually requires high-temperature annealing steps, which increases energy consumption and is not conducive to the fabrication of flexible wearable devices. In this work, an unprecedented low-temperature fabrication of stable black-phase CsPbI3 perovskite films is demonstrated by the in situ hydrolysis reaction of diphenylphosphinic chloride additive. The released diphenyl phosphate and chloride ions during the hydrolysis reaction significantly lower the phase transition temperature and effectively passivate the defects in the perovskite films, yielding high-performance photodetectors with a responsivity of 42.1 A W-1 and a detectivity of 1.3 x 1014 Jones. Furthermore, high-fidelity image and photoplethysmography sensors are demonstrated based on the fabricated flexible wearable photodetectors. This work provides a new perspective for the low-temperature fabrication of large-area all-inorganic perovskite flexible optoelectronic devices.

关键词： In situ hydrolyzation Low-temperature processing All-inorganic perovskite Flexible photodetectors Health monitoring

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Potassium ions and cyano group modified g-C3N4 for effective generation of H2O2 through two-electron oxygen reduction

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Science China Chemistry 2025年第1期 192-200页

作者： Dongying Wang Shulan Pu Yongmin chen Ke Lei Yujie Duan Linjiao Mao Xuhui Zeng xi Luo Yuntao Zhang Yuqin Dong Jin Zhong Zhang Yan Sun School of Mechanical Engineering Chengdu University Department of Chemistry and Biochemistry University of California

Potassium ions （K+） doped graphitic carbon nitride （g-C3N4） was prepared by a thermal etching method using potassium hydroxide （KOH） as an ion *** transform infrared spectroscopy （FTIR） and X-ray photoelectron spectroscopy （XPS）results showed that the generation of the cyano group was detected while introducing K+.Under simulated sunlight irradiation,the sample with a K+doping amount of 10%showed the highest hydrogen peroxide （H2O2） generation rate of2,140.2μmol *** apparent quantum yield （AQY） at 400 nm and the solar-to-chemical conversion （SCC） are 4.35%and1.23%,respectively.K+acted as a bridge between g-C3N4layers,which enhanced charge transfer ***,the cyano group enhanced the adsorption capacity of protons （H+） and promoted the yield of *** catalyst exhibited excellent photocatalytic stability based on four-cycle *** addition,a mechanism study showed that superoxide radicals （·O2-）were the most important active species in the reaction *** production of H2O2was achieved through consecutive single-electron *** study deepens the understanding of the oxygen reduction reaction process and opens up a new venue for improving H2O2generation.

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银发经济中备老人群消费特征与发展趋势研究

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新疆师范大学学报（哲学社会科学版） 2025年第2期46卷 48-58,F0002页

作者：彭希哲陈倩复旦大学老龄研究院上海200433

银发经济已成为我国未来经济持续增长的重要领域,发展银发经济需要从供给和需求两方面同时发力。银发经济有特定的年龄针对性,文本关注银发经济中未老阶段的备老经济。备老人群呈现身体健康状况良好、预期寿命持续延长,文化教育水平较... 详细信息

银发经济已成为我国未来经济持续增长的重要领域,发展银发经济需要从供给和需求两方面同时发力。银发经济有特定的年龄针对性,文本关注银发经济中未老阶段的备老经济。备老人群呈现身体健康状况良好、预期寿命持续延长,文化教育水平较高、消费观念开放包容,互联网普及程度较高、消费个性化、注重悦己等群体特征,具有较强的消费能力和消费意愿,备老人群的消费将为银发经济带来巨大的增量空间。深入理解并满足备老人群的消费需求,对推动供需在更高水平实现良性循环、促进银发经济高质量发展具有重要意义。

关键词：银发经济备老经济高质量发展良性循环消费特征

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