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Enhancing photodynamic inactivation via tunning spatial constraint on photosensitizer

Science China Chemistry 2024年第2期67卷 652-663页

作者： Chong li Minghao Han Ji Gao Shuxian Wang Song-Bo Lu Yaxi li Zhao liu Chen Zhang zhaojin Wang Fangliang Wang Yuang Sun Chun Loong Ho Kai Wang Yun Shen Kai li Shenzhen Key Laboratory of Smart Healthcare Engineering Guangdong Provincial Key Laboratory of Advanced BiomaterialsDepartment of Biomedical EngineeringSouthern University of Science and TechnologyShenzhen518055China Department of Chemical and Environmental Engineering University of California RiversideRiverside92521USA Department of Electrical and Electronic Engineering Southern University of Science and TechnologyShenzhen518055China

The critical factor of spatial constraint,provided by the external confinement(e.g.,matrix),is often overlooked during photodynamic inactivation,despite playing a crucial role in determining the molecular photophysical process and subsequent antipathogen performance.Here,as a proof-of-concept model,we employed two types of polymers with varying interaction energies with dopants to investigate the intrinsic relationship between spatial constraint and the essential excited-state behaviors of doped photosensitizer(4-(2-(5-(4-(diphenylamino)phenyl)thiophen-2-yl)ethyl)-1-methylquinolin-1-ium iodine,TPP).Through experimental investigation and theoretical calculations,we found that TPP tends to remain in the excited state for a shorter dwell time under weaker spatial constraints due to less restricted molecular motion in polyurethane(PU) nanofibers.Consequently,the singlet oxygen(^(1)O_(2)) generated from doped-TPP shows a 9.23-fold enhancement in PU than in the polyvinylchloride(PVC) matrix.Under light irradiation,the PU@TPP nanofiber can efficiently eliminate the coronavirus MHV-A59(≥99.9997%) at a 220,000-fold higher concentration than the infected space.Its antibacterial efficacy has also been demonstrated,with a killing rate of ≥99%.

关键词： photodynamic antibacterial singlet oxygen triphenylamine nanofiber

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Synergistically enabling the interface stability of lithium metal batteries with soft ionic gel and garnet-type li_(6.4)La_(3)Zr_(1.4)Ta_(0.6)O_(12)ceramic filler

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Journal of Materiomics 2023年第3期9卷 568-576页

作者： Qiujun Wang Weiqi Zhu Ya Su Di Zhang zhaojin li Huan Wang Huilan Sun Bo Wang Dan Zhou li-Zhen Fan Hebei Key Laboratory of Flexible Functional Materials School of Materials Science and EngineeringHebei University of Science and TechnologyShijiazhuang050000China Beijing Advanced Innovation Center for Materials Genome Engineering Institute of Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing100083China

lithium metal batteries based on solid electrolytes are considered as promising candidates with high energy density and safety.However,the weak solid-solid contact between electrolyte and electrode can easily lead to interface instability and lithium ions discontinuous migration,which seriously reduces the electrochemical performance of the battery.Herein,we construct a soft gel interfacial layer to improve the stability of the solid-solid interface between electrolyte and electrode by means of polyester-based monomers and imidazole-based ionic liquids.Based on this,garnet-type li_(6.4)La_(3)Zr_(1.4)Ta_(0.6)O_(12)(LLZTO)particles as inorganic ceramic filler were introduced in the layer to obtain composite electrolytes with high ionic conductivity(up to 1.1×10^(-3)S/cm at 25℃).As a result,the assembled lithium symmetric battery of li|THCE-15%LLZTO|li suggests excellent cycling stability with 700 h at 0.1 mA/cm^(2)at 50℃,and the lithium metal batteries of LFP|THCE-15%LLZTO|li delivers high initial discharge capacity of 128.2 mA·h/g with capacity retain of 75.48%after 150 cycles at 2 C.This work paves a new route to build safe and stable lithium metal batteries with synergistic introduction of composite electrolytes between electrolyte and electrode using soft gel interfacial layer and inorganic filler.

关键词： lithium metal batteries Ionic liquid In-situ polymerization Soft interfacial layer Composite electrolyte

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Hierarchically designed MoWSe_(2)/WO_(3)/C anode for fast and efficient Na+storage

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Journal of Energy Chemistry 2023年第5期80卷 291-301,I0008页

作者： Jian Wang Yachuan Shao Fei Yuan Huilan Sun Di Zhang zhaojin li S.Ramesh H.J.Woo Bo Wang Centre for Ionics University of Malay1 Department of PhysicsFaculty of ScienceUniversity of MalayaKuala Lumpur 50603Malaysia Hebei Key Laboratory of Flexible Functional Materials School of Materials Science and EngineeringHebei University of Science and TechnologyShjiazhuang 0500000HebeiChina

Exploring anode materials with high energy and power density is one of the critical milestones in developing sodium-ion batteries/capacitors(SIBs/SICs).Here,the Mo and W-based bimetallic organic framework(Mo-W-MOF)with core-shell structure is first formed by a facile strategy,followed by a selenization and carbonization strategy to finally prepare multileveled Mo WSe_(2)/WO_(3)/C anode materials with core-shell petal like curled nanosheet structure.Between the petal(MoSe_(2))-core(WO_(3))structure,the formation of WSe_(2)flakes by partial selenization on the surface of WO_(3)serves as a heterogeneous connection between MoSe_(2)and WO_(3).The enlarged layer distance(0.677 nm)between MoSe_(2)and WSe_(2)can facilitate the rapid transfer of Na+and electrons.The density functional theory(DFT)calculations verify that the Mo WSe_(2)/WO_(3)/C heterostructure performs excellent metallic properties.Ex-situ X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),and transmission electron microscopy(TEM)confirm the activation process from the initial insertion reaction to the later conversion reaction.Resultantly,when employed as the anode of SIBs,a remarkable capacity of 384.3 mA h g-1after 950 cycles at 10 A g^(-1)is performed.Furthermore,the SICs assembled with commercial activated carbon(AC)as the cathode exhibits a remarkable energy density of 81.86 W h kg^(-1)(at 190 W kg^(-1))and 72.83 W h kg^(-1)(at 3800 W kg^(-1)).The unique structural design and the reaction investigation of the electrode process can provide a reference for the development of transition metal chalcogenides anodes.

关键词： Multileveled MoWSe2/WO_(3)/C Structure change Heterostructure Metallic properties Enlarged lattice distance The activation process

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A two-step strategy for constructing stable gel polymer electrolyte interfaces for long-life cycle lithium metal batteries

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Journal of Materiomics 2022年第5期8卷 1048-1057页

作者： Qiujun Wang Pin Zhang Weiqi Zhu Di Zhang zhaojin li Huan Wang Huilan Sun Bo Wang li-Zhen Fan Hebei Key Laboratory of Flexible Functional Materials School of Materials Science and EngineeringHebei University of Science and TechnologyShijiazhuang050018China Beijing Advanced Innovation Center for Materials Genome Engineering Institute of Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing100083China

Due to the high reactivity between the lithium metal and traditional organic liquid electrolyte,the reaction of lithium metal electrode is usually uneven and there are also unexpected side reactions.Therefore,construction of a stable solid electrolyte interface(SEI)is highly essential to improve the performance of lithium metal anode.Herein,a sandwich-like gel polymer electrolyte(GPE)is accurately prepared by in-situ polymerization of Polyacrylonitrile(PAN)nanofiber membrane with trihydroxymethylpropyl trimethylacrylate(TMPTMA)and 1,6-hexanediol diacrylate(HDDA).The resulting GPE with a tightly cross-linked gel skeleton exhibits high ionic conductivity and electrochemical window of 5.6 V versus li/li^(+).In particular,the pretreatment of li metal anode can improve the interfacial wettability,and the synergy of the chemically pretreated li metal anode surface and the GPE can electrochemically in situ generate SEI with compositionally stable and fluorine-rich inorganic components.Owing to these unique advantages,the interfacial compatibility between the GPE and lithium metal is greatly improved.Meanwhile,the formed SEI can inhibit the formation of lithium dendrites,and decomposition of GPE would be alleviated.The assembled li-FEC|GPE|liFePO_(4) full cell shows a high initial discharge capacity of 157.1 mA h g^(-1),and maintains a capacity retention of 92.3%after 100 cycles at 0.2C.

关键词： Gel polymer electrolyte Pre-lithiation lithium-metal batteries In-situ polymerization

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Constructing arbitrary self-similar Bessel-like beams via transverse-longitudinal mapping

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Chinese Optics Letters 2024年第2期22卷 167-171页

作者：李岩珂邹昱郭兆金刘圣李鹏魏冰妍温丹丹赵建林 Key Laboratory of light Field Manipulation and Information Acquisition Ministry of Industry and Information TechnologyShaanxi Key Laboratory of Optical Information TechnologySchool of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi’an 710129China

Based on the transverse-longitudinal mapping of Bessel beams,we propose a simple method to construct a self-similar Bessel-like beam whose transverse profile maintains a stretched form during propagation.Specifically,the propagatingvariant width of this beam can be flexibly predesigned.We experimentally demonstrate three types of self-similar Bessellike beams whose width variations are linear,piecewise,and period functions of propagation distance,respectively.The experimental results match well with the theoretical predictions.We also demonstrate that our approach enables the generation of self-similar higher-order vortex Bessel-like beams.

关键词： Bessel beams self-similarity transverse-longitudinal mapping

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Copolymerization-Assisted Preparation of Porous liMn_2O_4 Hollow Microspheres as High Power Cathode of lithium-ion Batteries

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Journal of Materials Science & Technology 2017年第8期33卷 781-787页

作者： Zhimin Zou zhaojin li Hui Zhang Xiaohui Wang Chunhai Jiang Fujian Provincial Key Laboratory of Functional Materials and Applications Institute of Advanced Energy Materials School of Materials Science and Engineering Xiamen University of Technology Institute of Metal Research Chinese Academy of Sciences

Porous liMn2O4 hollow microspheres were facilely prepared by incorporation of li and Mn elements into a spherical polymeric precursor through copolymerization of lithium and manganese acetates with resorcinol and hexamethylenetetramine and then burning off the organic matrix at appropriate temperatures in air. The liMn2O4 inherited the spherical morphology of the polymeric precursor but showed hollow porous structure assembled by nanocrystals of about 50–100 nm in size. When tested as cathode of li-ion batteries, the liMn2O4 hollow spheres exhibited excellent rate capability and cycle stability.A discharge capacity of above 90 mAh g-1was maintained at 10 C（1C = 120 mAg-1）, and the cells can still deliver a discharge capacity over 100 mAhg-1after another 115 cycles at 0.5 C. With such excellent electrochemical properties, the prepared liMn2O4 hollow microspheres could be promising cathode of li-ion batteries for long term and high power applications.

关键词： li-ion batteries Cathode liMn2O4 Hollow spheres Rate capability

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基于不同组织和器官角度回顾PGC-1α在运动抗衰老中的作用

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中国组织工程研究 2024年第29期28卷 4717-4725页

作者：李兆进郑鹏程孔健达朱腾旗姜付高曲阜师范大学体育学部山东省济宁市272000 曲阜师范大学体育科学学院山东省济宁市272000

背景:过氧化物酶体增殖物激活受体γ共激活因子1α(peroxisome proliferators-activated receptors gamma co-activator 1α,PGC-1α)和衰老密切相关,且其在运动抗衰老中发挥着重要的调控作用,但缺乏从不同组织和器官视角下PGC-1α在运... 详细信息

背景:过氧化物酶体增殖物激活受体γ共激活因子1α(peroxisome proliferators-activated receptors gamma co-activator 1α,PGC-1α)和衰老密切相关,且其在运动抗衰老中发挥着重要的调控作用,但缺乏从不同组织和器官视角下PGC-1α在运动抗衰老中作用的相关综述。目的:详细回顾PGC-1α在运动抗衰老中的作用,并从不同组织和器官的角度探讨其调控情况。方法:于2023-05-01/07-01进行文献检索。检索范围包括自各数据库建库至2023年7月,并在Web of Science、PubMed、中国知网、万方和维普数据库上进行检索。中文检索词:“PGC-1α,过氧化物酶体增殖物激活受体γ共激活因子1α,PPARGC1A,衰老,运动,老年人等”;英文检索词:“PGC-1α,aging,exercise,exercise training,older adults”。运用布尔逻辑运算符将检索词连接进行检索,并制定了相应的检索策略。根据纳入和排除标准进行筛选,最终纳入文献83篇进行综述分析。结果与结论:①PGC-1α是一个重要的转录共激活因子,在维持线粒体功能、调控能量代谢和适应不同代谢需求方面发挥着关键的调节作用。②在线粒体衰老中的多种功能,在多种细胞类型中的调节作用,在多种细胞类型中发挥着重要的调节作用,与炎症途径和氧化还原控制的关系及其相关蛋白修饰和表观遗传变化。③PGC-1α的表达水平能够被运动训练提高,并通过调节线粒体生物发生、能量代谢和抗氧化应激等途径发挥积极的作用,其在运动改善脂肪组织衰老、心血管老化、神经系统老化、肾脏衰老、骨骼肌衰老和肝脏老化等中发挥重要作用。④课题组专家建议未来研究方向包括探索不同类型、强度和时长的运动对PGC-1α表达的调节影响,研究PGC-1α的蛋白修饰和表观遗传变化的调节机制,以及加强对PGC-1α在不同衰老相关疾病中的作用机制的研究。

关键词：过氧化物酶体增殖物激活受体γ共激活因子1α PGC-1α 运动运动训练衰老老化组织器官综述

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TLR4/ERK1/2信号通路在不明原因自然流产蜕膜组织中的作用研究

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中国免疫学杂志 2024年第3期40卷 503-506页

作者：李娜栾兆进杨美霞宫晓玲赵紫薇宋芳包头医学院组织学与胚胎学教研室包头014000 包钢第三职工医院包头014000

目的:探讨Toll样受体4(TLR4)和细胞外信号调节蛋白激酶1/2(ERK1/2)在不明原因自然流产患者蜕膜组织中的表达情况及二者的相关性。方法:分别采用免疫组织化学和Western blot技术检测32例不明原因自然流产患者(流产组)和32例正常妊娠者(... 详细信息

目的:探讨Toll样受体4(TLR4)和细胞外信号调节蛋白激酶1/2(ERK1/2)在不明原因自然流产患者蜕膜组织中的表达情况及二者的相关性。方法:分别采用免疫组织化学和Western blot技术检测32例不明原因自然流产患者(流产组)和32例正常妊娠者(对照组)蜕膜组织TLR4、ERK1/2和p-ERK1/2的表达差异及表达水平;采用Pearson等级相关性分析流产组TLR4与p-ERK1/2之间的相关性。结果:在免疫组织化学实验中,蜕膜细胞的胞质是TLR4、ERK1/2和p-ERK1/2的表达定位点,且3种蛋白表达有所差异,在流产组TLR4和p-ERK1/2的表达均明显高于对照组(P0.05),流产组TLR4的蛋白水平高于对照组(P0.05);在流产组TLR4与p-ERK1/2的表达呈正相关(r=0.890,P<0.01)。结论:TLR4/ERK1/2信号通路的异常激活可能是不明原因自然流产发生机制之一。

关键词： TLR4 ERK1/2 p-ERK1/2 自然流产蜕膜

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地下城市综合体连通规划设计研究

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城市建筑 2024年第6期21卷 98-100页

作者：李昕诺李兆金滕绍鹏解旭东青岛理工大学建筑与城乡规划学院青岛环海湾投资发展集团有限公司

现阶段城市建成区地面开发容量趋于饱和,一味地向上开发并不能有效解决交通拥堵、环境恶化等问题,反而会导致生活质量明显下降。地下空间的开发不仅能促使城市空间朝立体化方向发展,还能缓解城市化造成的土地资源紧缺。文章对地下城市... 详细信息

现阶段城市建成区地面开发容量趋于饱和,一味地向上开发并不能有效解决交通拥堵、环境恶化等问题,反而会导致生活质量明显下降。地下空间的开发不仅能促使城市空间朝立体化方向发展,还能缓解城市化造成的土地资源紧缺。文章对地下城市综合体基本空间构成展开剖析,并从立体化的视角对其进行分类,即鱼骨状、辐射状、网络状。同时详细研究了与城市元素之间的连通设计,以期发挥地下城市综合体的最大社会效益和经济效益,同时希望为之后的地下城市综合体规划设计提供一定的借鉴,促使其发挥应有的价值。

关键词：地下空间地下城市综合体连通

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太阳能吸收式制冷系统及其蓄能技术研究

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制冷与空调 2024年第4期24卷 12-23,32页

作者：张丽影毕月虹李召金刘林威北京工业大学城建学部北京工业大学绿色建筑环境与节能技术北京市重点实验室

在分析国内外现有太阳能吸收式制冷系统的基础上,从太阳能集热器、蓄能形式、辅助热源、吸收式冷水机组以及太阳能集热器与吸收式冷水机组的匹配等方面详细阐述太阳能吸收式制冷系统及其蓄能技术的发展现状,并对太阳能制冷空调系统的控... 详细信息

在分析国内外现有太阳能吸收式制冷系统的基础上,从太阳能集热器、蓄能形式、辅助热源、吸收式冷水机组以及太阳能集热器与吸收式冷水机组的匹配等方面详细阐述太阳能吸收式制冷系统及其蓄能技术的发展现状,并对太阳能制冷空调系统的控制策略、优化分析及理论研究进行总结,最后指出太阳能吸收式制冷系统及其蓄能技术的发展方向。

关键词：制冷空调冷水机组吸收式太阳能集热器蓄能

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