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High precision patternable liquid metal based conductor and adhesive substrate enabled stretchable hybrid systems

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Nano Research 2024年第6期17卷 5595-5603页

作者： Runhui Zhou Jiaoya Huang Zemin li yushu Wang Ziyu Chen Caofeng Pan CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China School of Nanoscience and Engineering University of Chinese Academy of SciencesBeijing 100049China Center on Nanoenergy Research School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Institute of Atomic Manufacturing Beihang UniversityBeijing 100191China

Stretchable hybrid systems have been attracting tremendous attention for their essential role in soft robotics,on-skin electronics,and implantable devices.Both rigid and soft functional modules are typically required in those devices.Consequently,ensuring stable electrical contact between rigid and soft modules is a vital part.Here,we propose a simple,universal,and scalable strategy for the stretchable hybrid system through a highly precise printable liquid metal particle-based conductor and adhesive fluorine rubber substrate.The properties of liquid metal particle-based conductors could be easily tuned to realize high-precision patterning,large-scale printing,and the ability to print on various substrates.Additionally,the fluorine rubber substrate could form strong interfacial adhesion with various components and materials through simply pressing and heating,hence enabling stable electrical contact.Furthermore,we prepared a stretchable hybrid light-emitting diode(LED)display system and employed it in on-skin visualization of pressure levels,which perfectly combined rigid and soft modules,thus demonstrating the promising potential applications in complex multifunctional stretchable hybrid systems for emerging technologies.

关键词： stretchable hybrid systems liquid metal high precision interfacial adhesion

A family of oligo(p-phenylenevinylene)derivative aggregation-induced emission probes:Ultrasensitive,rapid,and anti-interfering fluorescent sensing of perchlorate via precise alkyl chain length modulation

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聚集体(英文)

聚集体(英文) 2023年第2期4卷 183-192页

作者： Fangfang Xiao yushu li Jiguang li Da Lei Guangfa Wang Tianshi Zhang Xiaoyun Hu Xincun Dou Xinjiang Key Laboratory of Explosives Safety Science Xinjiang Technical Institute of Physics&ChemistryChinese Academy of SciencesUrumqiChina Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijingChina

The precise regulation of interactions provided by aggregation-induced emission(AIE)probes is of considerable significance for improving the sensing performance in the field of on-site detection.Here,a highly sensitive perchlorate detection probe was designed by precisely modulating the van der Waals interactions by adjusting the length of the alkyl chain.The optimized AIE probe demonstrated superior perchlorate detection performance owing to its strong van der Waals interactions with perchlorate,including a low detection limit(53.81 nM),rapid response(limit as low as 15 fg under a fluorescence microscope.Moreover,the practicality of the probe was further verified by employing a sensing chip in a portable detector,and thus the probe has been proven to be highly promising for trace perchlorate monitoring in real scenarios.We expect the present study to be of great value for the efficient design of high-performance fluorescent probes.

关键词： aggregation-induced emission explosive detection fluorescent probe perchlorate trace sensing

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甲状腺结节:精准诊断指导个体化治疗

中华内科杂志 2024年第6期63卷 531-534页

作者：李玉姝单忠艳中国医科大学附属第一医院内分泌与代谢病科、国家卫生健康委员会甲状腺疾病诊治重点实验室(共建) 沈阳110001

甲状腺结节在成人中患病率高达20%~68%,高分辨率超声等影像手段的广泛应用是一个重要因素,但是增龄、肥胖、电离辐射、环境污染以及碘摄入不足等是发生甲状腺结节风险因素。大多数结节为良性,无症状,不需治疗。甲状腺超声、细针穿刺细... 详细信息

甲状腺结节在成人中患病率高达20%~68%,高分辨率超声等影像手段的广泛应用是一个重要因素,但是增龄、肥胖、电离辐射、环境污染以及碘摄入不足等是发生甲状腺结节风险因素。大多数结节为良性,无症状,不需治疗。甲状腺超声、细针穿刺细胞学检查以及必要时结合分子诊断进行良恶性鉴别,实现精准诊断。兼顾成本与效益,分层次对甲状腺癌进行个体化治疗的时代已经到来。

关键词：甲状腺结节诊断治疗

Intermolecular through-space charge transfer enabled by bicomponent assembly for ultrasensitive detection of synthetic cannabinoid JWH-018

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聚集体(英文)

聚集体(英文) 2023年第4期4卷 128-137页

作者： Chaogan liu Fangfang Xiao yushu li Da Lei Yuan liu Xiaowei Ma Chengzhi Gu Xincun Dou State Key Laboratory Incubation Base for Green Processing of Chemical Engineering School of Chemistry and Chemical EngineeringShihezi UniversityShiheziChina Xinjiang Key Laboratory of Explosives Safety Science Xinjiang Technical Institute of Physics&ChemistryChinese Academy of SciencesUrumqiChina Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijingChina

Launching the intermolecular through-space charge transfer(TSCT)from a bicomponent assembly for photophysical property manipulation is of great significance in fluorescence probe design.Here,we demonstrate the elaborate control of droplet evaporation dynamics for intermolecular TSCT can facilitate the ultrasensitive detection of JWH-018,a representative synthetic cannabinoid.Driven by diverse intermolecular interactions,the probe,and JWH-018 assemble in a closely stacked manner to emit strong fluorescence at 477 nm,ascribing to the intermolecular TSCT at the S2 state.The strategy realizes an ultra-low limit of detection of 11 nmol/mL and great selectivity towards JWH-018.The practicability is further verified by constructing a sensing chip for JWH-018 aerosol detection,which facilitates the on-site drug abuser screening with the naked eye.Moreover,the proposed assembly-enabled TSCT is expected to find a variety of applications for optoelectronic materials design and photophysical mechanism-dominated molecular recognition.

关键词： bicomponent assembly fluorescent sensing intermolecular interaction

现代个体为何无需回家——基于黑格尔《法哲学原理》的考察

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伦理学研究 2024年第3期 59-66页

作者：李育书上海财经大学哲学系

个体的兴起是现代社会的重要特征,现代社会的诸多弊端也与个体兴起密切相关,但是,回归家庭并不是应对现代性之弊的主要出路。在黑格尔法哲学中,家庭与个体的关系是双向的,家庭虽提供了应对个体性原则的伦理性原则,但是家庭不可避免要走... 详细信息

个体的兴起是现代社会的重要特征,现代社会的诸多弊端也与个体兴起密切相关,但是,回归家庭并不是应对现代性之弊的主要出路。在黑格尔法哲学中,家庭与个体的关系是双向的,家庭虽提供了应对个体性原则的伦理性原则,但是家庭不可避免要走向解体并为市民社会提供新的个体,而且现代社会的家庭形态也发生了诸多改变,这些变化进一步贯彻了个体性原则。个体性原则是现代社会的重要根基,当前,与其通过回归家庭来回应现代性弊端,不如发挥个体之主体建构原则,通过主体的自我建构来实现现代社会的团结稳固。

关键词：家个体主体性伦理性黑格尔

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从《虚构集》看博尔赫斯小说中的梦学特性

世界文学评论（高教版） 2024年第1期 98-100页

作者：李宇舒复旦大学中国语言文学系

在博尔赫斯的短篇小说集《虚构集》中,梦境被赋予了多重含义。在扑朔迷离的叙事中,梦境与现实相交融、相对抗,产生了如梦似幻的哲学张力。本文从梦境的虚幻、惊异的荒诞、存在与虚无三个角度阐述博尔赫斯短篇小说《虚构集》中的梦学特性。

关键词：博尔赫斯《虚构集》梦学与文学

Closely packed Si@C and Sn@C nano-particles anchored by reduced graphene oxide sheet boosting anode performance of lithium ion batteries

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Journal of Materials Science & Technology 2021年第28期87卷 18-28页

作者： Chaoye Zhu Yao Zhang Ziqiang Wu Zhihong Ma Xinli Guo Fuyi Guo Jiakun Zhang yushu li School of Materials Science and Engineering Jiangsu Key Laboratory of Advanced Metallic MaterialsSoutheast UniversityNanjing211189China School of Materials Science and Engineering Baise UniversityBaise533000China

Both silicon and tin are promising anodes for new generation lithium ion batteries due to high lithium storage capacities(theoretically 4200 mA h g^(-1) and 992 mA h g^(-1),respectively).However,their large volumetric expansions(both are above 300%)usually lead to poor cycling stability.In this case,we synthesized closely packed Si@C and Sn@C nano-particles anchored by reduced graphene oxide(denoted as Si@C/Sn@C/rGO)by the way of solution impregnation and subsequent hydrogenation reduction.Sn particles with a diameter of 100 nm are coated by carbon and surrounded by Si@C particles around 40 nm in average diameter through the high-resolution transmission electron microscopy.Expansions of Si and Sn are alleviated by carbon shells,and reduced graphene oxide sheets accommodate their volume changes.The prepared Si@C/Sn@C/rGO electrode delivers an enhanced initial coulombic efficiency(78%),rate capability and greatly improved cycle stability(a high reversible capacity of nearly 1000 mA h g^(-1) is achieved after 300 cycles at a current density of 1000 mA g^(-1)).It can be believed that packing Sn@C nano-particles with Si@C relieves the volume expansion of both and releases the expansion stresses.Sn@C particles enhance anode process kinetics by reducing charge transfer resistance and increasing lithium ion diffusion coefficient.The present work provides a viable strategy for facilely synthesizing silicon-tin-carbon composite anode with long life.

关键词： Sn-Si-C nano-composites Anode lithium ion batteries

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人体器官捐献中的死亡标准问题

器官移植 2024年第3期15卷 359-366页

作者：杨顺良江哲龙吕立志李羽抒王栋中国人民解放军联勤保障部队第九〇〇医院泌尿外科福州350025 中国人民解放军联勤保障部队第九〇〇医院OPO 福州350025 中国人民解放军联勤保障部队第九〇〇医院肝胆外科福州350025 中国人民解放军联勤保障部队第九〇〇医院卫勤部福州350025

死亡后捐献是开展公民逝世后器官捐献工作最重要的伦理原则。新修订的《人体器官捐献和移植条例》未定义死亡,且回避了“是否承认脑死亡”这一关键性问题,器官捐献工作中可能存在一定的法律风险或损害捐献者权益的情况。死亡是人类生命... 详细信息

死亡后捐献是开展公民逝世后器官捐献工作最重要的伦理原则。新修订的《人体器官捐献和移植条例》未定义死亡,且回避了“是否承认脑死亡”这一关键性问题,器官捐献工作中可能存在一定的法律风险或损害捐献者权益的情况。死亡是人类生命过程最终无法避免的事实,任何时代都需要而且只能通过一些具体的标准来判定死亡。死亡标准的建立基础是人们所持有的死亡观,并受到生产力发展水平和其他社会因素制约。中西方死亡判定标准的认定上存在明显差异。为了规范器官捐献和移植工作,推进器官捐献高质量发展,必须坚持动机纯正原则,以知情同意为前提,尊重捐献者及其近亲属的死亡标准自主选择权,严格遵循死亡判定程序和操作规范,确保死亡认定的科学性、准确性和公正性。

关键词：器官捐献死亡标准脑死亡器官捐献心脏死亡器官捐献器官移植伦理知情同意自主选择

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基于网络药理学和实验验证探讨补阳还五汤含药血清对高糖损伤血管内皮细胞的影响

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中药药理与临床 2024年第4期40卷 34-41页

作者：洪玉书张晶李玉梅刘婧宋张婕王楚盈长春中医药大学药学院长春130117

目的:基于网络药理学结合实验验证,探讨补阳还五汤含药血清对高糖损伤血管内皮细胞的影响。方法:基于复方网络药理学从TCMSP数据库、化源网、Swisstarget prediction数据库获取补阳还五汤有效化学成分及靶点,通过GeneCards、OMIM、Drugb... 详细信息

目的:基于网络药理学结合实验验证,探讨补阳还五汤含药血清对高糖损伤血管内皮细胞的影响。方法:基于复方网络药理学从TCMSP数据库、化源网、Swisstarget prediction数据库获取补阳还五汤有效化学成分及靶点,通过GeneCards、OMIM、Drugbank数据库收集糖尿病血管并发症相关靶点,运用String数据库构建关键靶点PPI网络图。基于Metascape数据库进行GO和KEGG富集分析。使用Autodock和Pymol软件进行分子对接验证。建立高糖诱导的HUVECS细胞损伤模型,给予5%、10%补阳还五汤含药血清;采用CCK-8法检测HUVECs细胞增殖情况,TBA法测定MDA含量;黄嘌呤氧化酶法测定SOD活性;Annexin V-FITC/PI双标记法联合Hoechst 33258、JC-1检测细胞凋亡情况;EliSA法检测IL-6、TNF-ɑ炎性因子含量;Western Blot法检测VEGF、p-AKT和AKT蛋白的表达。结果:补阳还五汤治疗糖尿病血管并发症有效成分为69个,潜在靶点306个,涉及的主要有效成分为槲皮素、山柰酚、β-谷甾醇,关键靶点有血管内皮生长因子(VEGFA),细胞炎性因子TNF、IL6等;生物学过程涉及对激素的反应、细胞对氮化合物的反应及对细胞因子的反应等,细胞组成涉及膜筏、膜侧和受体复合物等;分子功能涉及激酶活性与结合、脂质结合和转录因子结合等过程,其发挥作用机制的通路可能与脂质和动脉粥样硬化,细胞凋亡与衰老,生长激素的合成分泌,胰岛素抵抗,糖尿病并发症中的AGE-RAGE信号通路及PI3K-AKT信号通路等相关。基于网络药理学结果佐以实验验证,结果表明与模型对照组比较,18.5 g/kg补阳还五汤10%含药血清组细胞存活率显著增加(P<0.01),18.5 g/kg补阳还五汤含药血清5%、10%组可降低受损内皮细胞MDA含量(P<0.05或P<0.01),显著提高SOD活力(P<0.01),显著抑制细胞凋亡,降低受损内皮细胞IL-6、TNF-ɑ含量(P<0.05或P<0.01),降低VEGF、p-AKT/AKT蛋白表达(P<0.01),改善高糖状态的血管内环境。结论:补阳还五汤能够改善高糖状态的血管内环境,治疗糖尿病血管并发症,机制可能与其保护高糖损伤内皮细胞,促进细胞增殖,抑制细胞凋亡及炎症因子生成,以及下调VEGF和p-AKT/AKT蛋白,调节调控PI3K/AKT信号通路有关。

关键词：补阳还五汤糖尿病血管并发症网络药理学实验验证血管内皮蛋白激酶炎症因子