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Construction and application of the polyelectrolyte-based sequential artificial light-harvesting system

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中国化学快报:英文版 2023年第8期34卷 162-166页

作者： Chaoqun Ma Ning Han Ying Wang Hui Liu Rongzhou Wang Shengsheng Yu yuebo Wang Lingbao Xing School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo 255000China Department of Materials Engineering KU LeuvenLeuven 3001Belgium

In this work,we have designed and synthesized a cyano-substituted p-phenylenevinylene derivative(PPTA),which can self-assemble into positively charged nanoparticles in an aqueous solution with a deep green fluorescence.An anionic polyelectrolyte material guar gum modified by carboxylic acid(GP5A)was chosen to build an artificial light-harvesting system(LHS)through self-assembly with PPTA,in which two acceptors Eosin Y(EY)and Nile red(NiR)were loaded into the PPTA-GP5A assemblies through electrostatic interaction and Van der Waals force.By adjusting the molar ratio of PPTA-GP5A/EY at 1:0.004,the one-step artificial LHS can exhibit high energy transfer efficiency(Φ_(ET))(38.9%)and antenna effect(AE)(4.6).Subsequently,with the addition of NiR,theΦET and AE of the two-step sequential artificial LHS were calculated to be 71.9%and 13.5,respectively.Moreover,the two-step artificial LHS constructed by the polyelectrolyte material GP5A can be used as a nanoreactor to photocatalyst alkylation of C-H bonds of phenyl vinyl sulfone(PVS)and tetrahydrofuran(THF)in water with a yield of 42%.Therefore,we have constructed an artificial LHS with two-step energy transfer based on polyelectrolytes through the electrostatic interaction to improve energy transfer efficiency,which can also be used as a nanoreactor for photocatalysis.

关键词： Supramolecular assembly Light-harvesting system Electrostatic interaction Energy transfer Photocatalysis

A novel strategy of constructing 2D supramolecular organic framework sensor for the identification of toxic metal ions

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纳米材料科学:英文版 2023年第3期5卷 335-342页

作者： Ying Wang Ning Han Chao-Qun Ma Hui Liu Shengsheng Yu Rongzhou Wang Vijay Kumar Thakur Ling-Bao Xing School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo255000PR China Department of Materials Engineering KU LeuvenLeuven3001Belgium Biorefining and Advanced Materials Research Center Scotland's Rural College(SRUC)Kings BuildingsWest Mains RoadEdinburghEH93JGUK

Two novel two-dimensional(2D)supramolecular organic frameworks were fabricated in water based on the encapsulation-enhanced donor-acceptor interaction between the methyl viologen(MV)units,methoxy naphthyl(MN)units,and CB[8].The tetraphenylethylene(TPE)derivatives 1 with four MV units were employed as rigid building blocks and the two MN units modified oligoethylene glycol derivatives 2 and 3 served as flexible edges,respectively.The obtained two SOFs have obvious sheet-like structures and exhibit fluorescence emission at 350-500 nm.In addition,these two SOFs were employed for the luminescent detection of Cr(Ⅵ)and Mn(Ⅶ)in aqueous solutions,and the detection limits of CrO_(4)^(2-),Cr_(2)_(O)_(7)^(2-),and MnO_(4)were calculated in a very low concentration range,indicating that these two SOFs can serve as a potential sensor for Cr(Ⅵ)and Mn(Ⅶ)detection in water.This work constructs two SOFs in an aqueous solution through a facile method and further enriches the applications of SOFs.

关键词： Two-dimensional supramolecular organic framework Encapsulation-enhanced donor-acceptor interaction Luminescent detection

Metal-ligand cooperative iridium complex catalyzed C-alkylation of oxindole and 1,3-dimethylbarbituric acid using alcohols

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绿色合成与催化(英文)

绿色合成与催化(英文) 2023年第3期4卷 246-252页

作者： Ao Song yunbo Liu Xuan Jin Dianrun Su Zhaopeng Li Shengsheng Yu Lingbao Xing Xiangchao Xu Rongzhou Wang Feng Li School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo255000China School of Chemistry and Chemical Engineering Nanjing University of Science&TechnologyNanjing210094China

A general and high-efficiency C-alkylation of oxindoles and barbituric acids has been developed by a Cp*Ir complex[Cp*Ir(2,20-bpyO)(OH)]Na with a bipyridine-based functional ligand.In particular,H_(2)O was selected as the solvent instead of the organic solvent in this catalytic system.Through mild reaction conditions gave a variety of corresponding alkylated heterocyclic compounds with good to excellent yields.More importantly,the gramscale C-alkylation reaction was successfully carried out with good yield using a common route with only a single purification by column chromatography.

关键词： C-Alkylation Borrowing hydrogen Iridium complex Oxindole 1,3-Dimethylbarbituric acid

腹腔镜下子宫深静脉入路C型宫颈癌根治术的疗效

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中国微创外科杂志 2024年第1期24卷 45-49页

作者：于鹃鹏秦珊珊郁胜胜高迎春南京医科大学附属淮安第一医院妇科淮安223300

目的探讨腹腔镜下子宫深静脉入路C型宫颈癌根治术治疗宫颈癌的疗效。方法2021年1月~2022年12月我院采用腹腔镜下子宫深静脉入路C型宫颈癌根治术+盆腔淋巴结清扫术±腹主动脉旁淋巴结切除术治疗58例宫颈癌。建立通道后,在阔韧带后叶定位... 详细信息

目的探讨腹腔镜下子宫深静脉入路C型宫颈癌根治术治疗宫颈癌的疗效。方法2021年1月~2022年12月我院采用腹腔镜下子宫深静脉入路C型宫颈癌根治术+盆腔淋巴结清扫术±腹主动脉旁淋巴结切除术治疗58例宫颈癌。建立通道后,在阔韧带后叶定位输尿管,分离输尿管后暴露子宫动脉,沿子宫动静脉背侧分离结缔组织,逐渐暴露子宫深静脉。将包绕子宫深静脉周围的宫旁淋巴结切除,单独送病理检查。继续向膀胱方向追踪子宫深静脉,游离其属支,血管夹双重夹闭。结果手术时间(307.2±54.1)min,出血量中位数50(20,100)ml,淋巴结清扫(26.3±6.9)枚,留置导尿管时间(20.6±4.7)d,拔除腹腔引流管时间(9.4±4.1)d,肛门排气时间(36.7±4.1)h,抗生素使用时间(9.2±4.2)d,住院时间(13.4±2.6)d。术后并发症发生率3.4%(2/58)。术后病理分期升级率为22.4%(13/58)。术后欧洲癌症研究治疗组织(European Organization of Research and Treatment of Cancer,EORTC)生活质量核心30问卷(Quality of Life Questionnaire-Core 30,QLQ-C30)评分较术前显著升高[(78.6±10.7)分vs.(47.1±7.6)分,t=17.177,P=0.000]。58例随访4~25个月,(13.5±6.2)月,无复发。结论腹腔镜下子宫深静脉入路C型宫颈癌根治术疗效确切、安全可靠。

关键词：子宫深静脉宫颈癌腹腔镜 C型子宫切除术

An Artificial Light-Harvesting System with Tunable Fluorescence Color in Aqueous Sodium Dodecyl Sulfonate Micellar Systems for Photochemical Catalysis

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Chinese Journal of Chemistry 2021年第10期39卷 2725-2730页

作者： Xinglong Li Ying Wang Ao Song Minghui Zhang Mengning Chen Man Jiang Shengsheng Yu Rongzhou Wang Lingbao Xing School of Chemistry and Chemical Engineering Shandong University of TechnologyZiboShandong255000 China Resources and Environmental Engineering Shandong University of TechnologyZiboShandong 255000China

Main observation and conclusion In the present work,an artificial light-harvesting system with fluorescence resonance energy transfer(FRET)is successfully fabricated in aqueous sodium dodecyl sulfonate(SDS)micellar systems.Since the tight and orderly arrangement of dodecyl in the SDS micelles is hydrophobic,tetra-(4-pyridylphenyl)ethylene(4PyTPE)can be easily encapsulated into the hydrophobic layer of SDS micelles through noncovalent interaction,which exhibits aggregation-induced emission(AIE)phenomenon and can be used as energy donor.By using amphoteric sulforhodamine 101(SR101)fluorescent dye attached to the negatively charged surface of SDS micelles through electrostatic interaction as energy acceptor,the light-harvesting FRET process can be efficiently simulated.Through the steady-state emission spectra analysis in the micelle-mediated energy transfer from 4PyTPE to SR101,the fluorescence emission can be tuned and white light emission with CIE coordinates of(0.31,0.29)can be successfully achieved by tuning the donor/acceptor ratio.More importantly,to better mimic natural photosynthesis,the SDS micelles with 4PyTPE and SR101 FRET system showed enhanced catalytic activity in photochemical catalysis for dehalogenation ofα-bromoacetophenone in aqueous solution and the photocatalytic reaction could be extended to gram levels.

关键词： Micelles Self-assembly Light-harvesting Energy transfer Photochemical catalysis

冻土层对桩基础铁路重力式桥墩抗震性能的影响研究

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地震工程与工程振动 2024年第1期44卷 225-236页

作者：徐振江张熙胤管嘉达于生生孙斌洁张益舶兰州交通大学土木工程学院甘肃兰州730070

为研究冻土影响下桩基础铁路重力式桥墩的地震破坏特征以及不同影响因素对季节性冻土区桩基础铁路重力式桥墩抗震性能的影响,首先通过拟静力模型试验研究了冻土影响下桩基础铁路重力式桥墩的地震破坏特征;其次建立了考虑冻土效应的桩基... 详细信息

为研究冻土影响下桩基础铁路重力式桥墩的地震破坏特征以及不同影响因素对季节性冻土区桩基础铁路重力式桥墩抗震性能的影响,首先通过拟静力模型试验研究了冻土影响下桩基础铁路重力式桥墩的地震破坏特征;其次建立了考虑冻土效应的桩基础桥墩有限元分析模型,采用数值模拟方法探讨了季节性冻土层厚度、剪跨比、轴压比和承台埋入深度4个参数对冻土区桩基础铁路桥墩抗震性能的影响。研究结果表明:在一定范围内季节性冻土层厚度的增加有利于提高桩基础铁路重力式桥墩的抗震性能,但当冻土层厚度超出这一范围再增加时,其对桩基础桥墩水平承载能力的影响会变弱,同时冻土层厚度的增加会加速桩-土-桥墩体系的破坏;剪跨比的增大和承台埋入深度的减少均会显著降低冻土影响下桩基础桥墩的抗震性能;轴压比的增大会提高桩基础桥墩的水平承载能力,但会加速桩基础桥墩峰值荷载的出现,同时也会加速桩-土-桥墩体系的破坏。

关键词：季节性冻土桩基础铁路重力式桥墩抗震性能滞回耗能特性

光响应有机模块自组装导致的氧自由基转化及其光催化应用

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Science China Materials 2024年第3期67卷 833-841页

作者：姚娴雅于胜胜张荣震王发栋刘辉牛凯凯邢令宝李培洲 School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo 255000China School of Chemistry and Chemical Engineering Shandong Provincial Key Laboratory for Science of Material Creation and Energy ConversionScience Center for Material Creation and Energy ConversionInstitute of Frontier and Interdisciplinary ScienceShandong UniversityJinan 250100China

在光催化反应中实现对活性氧物种的单线态氧和超氧阴离子自由基的有效控制仍然是一个巨大挑战.本工作报道了一个从光敏模块构筑主客体超分子有机框架(SOF)策略,有效地实现了单线态氧到超氧阴离子自由基的转化.该TPA-BP-SOF结构中的光敏... 详细信息

在光催化反应中实现对活性氧物种的单线态氧和超氧阴离子自由基的有效控制仍然是一个巨大挑战.本工作报道了一个从光敏模块构筑主客体超分子有机框架(SOF)策略,有效地实现了单线态氧到超氧阴离子自由基的转化.该TPA-BP-SOF结构中的光敏模块由四个4,4′-联吡啶盐(BP)单元修饰的苯基桥接双(三苯胺)衍生物(TPA-BP)构成.来自于不同的TPA-BP中的两个BP单元通过与葫芦[8]脲(CB[8])发生首尾相连的强络合作用,形成了具有周期性孔结构和均匀溶解度的二维超分子有机框架纳米片结构.与单体TPA-BP中检测到的生成单线态氧的能量转移机制不同,通过主客体相互作用形成的TPA-BP-SOF能够有效促进电子转移高效产生超氧阴离子自由基.同时,该TPA-BP-SOF生成的超氧阴离子自由基能有效地用于水相芳基硼酸的氧化羟基化和N-苯基四氢异喹啉的氧化,收率分别高达88%和83%.本研究提出了一种利用SOF实现II型光敏剂向I型光敏剂有效转化的新方法,成功展示了其在光催化有机转化中的实际应用.

关键词： photocatalysis reactive oxygen species singlet oxygen supramolecular organic frameworks superoxide radical

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考虑碳市场交易的寡头电力市场均衡分析

南方电网技术 2024年第1期18卷 143-152页

作者：邓盛盛陈皓勇肖东亮黄宇翔余哲轩曾鑫广东电网有限责任公司广州供电局广州510620 华南理工大学电力学院广州510641

在碳市场上线的背景下,发电商需同时参与碳市场与电力市场,并对电力市场均衡产生影响。为研究碳市场及电力市场中发电商的交易决策及两个市场之间的交互影响关系,建立了考虑碳市场交易的寡头电力市场双层均衡模型,该模型可同时考虑发电... 详细信息

在碳市场上线的背景下,发电商需同时参与碳市场与电力市场,并对电力市场均衡产生影响。为研究碳市场及电力市场中发电商的交易决策及两个市场之间的交互影响关系,建立了考虑碳市场交易的寡头电力市场双层均衡模型,该模型可同时考虑发电商在电力市场和碳市场中的博弈行为。针对所建立模型,采用协同进化算法进行纳什均衡的求解。最后通过算例验证了相关模型和算法的有效性,并重点研究了碳市场对电力市场均衡及发电商市场博弈行为的影响。结果表明:在当前采用基准线法进行初始碳配额分配情况下,发电商的策略性行为同时抬高了电价与碳价,其中电价的上涨幅度远小于碳价的上涨幅度。

关键词：电力市场碳市场发电商市场均衡博弈协同进化

“财务管理”教学内容的系统整合与教学方法创新

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科教导刊 2024年第10期 104-106页

作者：于生生王斌许乐鑫李建良北京信息科技大学北京102206 武汉大学财务部湖北武汉430072

在财务管理教学中,其教学内容和教学方法应不断创新,目的是培养全面、新型的财务管理人才。教学内容要适合外部财会人才就业市场的实际情况;在教学过程中,可根据教学内容灵活使用观念教学法、案例教学法、情景模拟教学法、模型教学法等... 详细信息

在财务管理教学中,其教学内容和教学方法应不断创新,目的是培养全面、新型的财务管理人才。教学内容要适合外部财会人才就业市场的实际情况;在教学过程中,可根据教学内容灵活使用观念教学法、案例教学法、情景模拟教学法、模型教学法等教学方法和手段,增强教学活动的吸引力,全方位激发学生的学习积极性,增强教育效果,培育出具备强大实践技能、创新思维和国际视野的实用型财务管理人才。

关键词：财务管理教学内容教学方法应用型人才

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