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Correction: Highly efficient and stable blue polymer light emitting diodes based on polysilafluorenes with pendent hole transporting groups

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Journal of Materials Chemistry C 2016年第5期4卷 1126-1126页

作者： Guangrong Jin Lianpeng Xia Zhe Liu Hong Lin Jun Ling Hongbin Wu Lintao Hou Yueqi Mo College of Materials Science and Engineering South China University of Technology Guangzhou 510640 China Siyuan Laboratory Department of Physics Jinan University Guangzhou 510632 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China

Correction for ‘Highly efficient and stable blue polymer light emitting diodes based on polysilafluorenes with pendent hole transporting groups’ by Guangrong Jin et al., J. Mater. Chem. C, 2016, DOI: 10.1039/c5tc036...

Correction for ‘Highly efficient and stable blue polymer light emitting diodes based on polysilafluorenes with pendent hole transporting groups’ by Guangrong Jin et al., J. Mater. Chem. C, 2016, DOI: 10.1039/c5tc03665h.

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A Binary Silicon-Centered Organoboron Catalyst with Superior Performance to That of Its Bifunctional Analogue

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Angewandte Chemie 2023年第48期135卷

作者： Cheng-Kai Xu Guan-Wen Yang Chenjie Lu Prof. Dr. Guang-Peng Wu MOE Key Laboratory of Macromolecular Synthesis and Functionalization Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province Department of Polymer Science and Engineering Zhejiang University Yuhangtang Road 866 Hangzhou 310058 China College of Material Chemistry and Chemical Engineering Key Laboratory of Organosilicon Chemistry and Material Technology Ministry of Education Hangzhou Normal University Hangzhou 311121 China

This work reported that a silicon-centered alkyl borane/ammonium salt binary (two-component) catalyst exhibits much higher activity than its bifunctional analogue (one-component) for the ring-opening polymerization of propylene oxide, showing 7.3 times the activity of its bifunctional analogue at a low catalyst loading of 0.01 mol %, and even 15.3 times the activity at an extremely low loading of 0.002 mol %. By using 19 F NMR spectroscopy, control experiments, and theoretical calculation we discovered that the central silicon atom displays appropriate electron density and a larger intramolecular cavity, which is useful to co-activate the monomer and to deliver propagating chains, thus leading to a better intramolecular synergic effect than its bifunctional analogue. A unique two-pathway initiation mode was proposed to explain the unusual high activity of the binary catalytic system. This study breaks the traditional impression of the binary Lewis acid/nucleophilic catalyst with poor activity because of the increase in entropy.

关键词： Boron Catalysts Ethers Polymerization Silicon

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Dual-Emissive Platinum(II) Metallacage with a Sensitive Oxygen Response for Imaging of Hypoxia and Imaging-Guided Chemotherapy

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Angewandte Chemie 2020年第45期132卷

作者： Zhu H. Li Q. Shi B. Ge F. Liu Y. Mao Z. Wang S. Yu G. Huang F. Stang P.J. State Key Laboratory of Chemical Engineering Center for Chemistry of High-Performance & Novel Materials Department of Chemistry Zhejiang University Hangzhou 310027 China Department of Chemistry University of Utah Salt Lake City UT 84112 United States College of Pharmaceutical Science Zhejiang University Hangzhou 310058 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China School of Life Sciences Tianjin University and Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology Tianjin 300072 China Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou 450001 China

Imaging of hypoxia in vivo helps with accurate cancer diagnosis and evaluation of therapeutic outcomes. A PtII metallacage with oxygen-responsive red phosphorescence and steady fluorescence for in vivo hypoxia imaging and chemotherapy is reported. The therapeutic agent and diagnostic probe were integrated into the metallacage through heteroligation-directed self-assembly. Nanoformulation by encapsulating the metallacage into nanoparticles greatly enhanced its stability the in physiological environment, rendering biomedical applications feasible. Apart from enhanced red phosphorescence upon hypoxia, the ratio between red and blue emissions, which only varies with intracellular oxygen level, provides a more precise standard for hypoxia imaging and detection. Moreover, in vivo explorations demonstrate the promising potential applications of the metallacage-loaded nanoparticles as theranostic agents for tumor hypoxia imaging and chemotherapy. © 2020 Wiley-VCH GmbH

关键词： hypoxia imaging metallacages platinum self-assembly supramolecular chemistry

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Anomalous Structural Transformation of Cu(I) Clusters into Multifunctional CuAg Nanoclusters

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Angewandte Chemie 2024年第36期136卷

作者： Yuqing Yao Wei Hao Jin Tang Kristin Kirschbaum Christopher G. Gianopoulos An Ren Liang Ma Letian Zheng Hanying Li Qi Li Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China Department of Chemistry and Biochemistry University of Toledo Toledo Ohio 43606 United States The State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical Engineering Zhejiang University Hangzhou 310027 China

We report an anomalous structural transformation of a Cu(I) cluster into two different types of copper-silver (CuAg) alloy nanoclusters. Different from previous reports, we demonstrate that under specifically designed reaction conditions, the Ag-doping could induce a substantial growth of the starting Cu 15 and a Ag 13 Cu 20 nanocluster was obtained via the unexpected insertion of an Ag 13 kernel inside the Cu(I)-S shell. Ag 13 Cu 20 demonstrates high activity to initiate the photopolymerization of previously hard-to-print inorganic polymers in 3D laser microprinting. Interestingly, a slight modification of the reaction condition leads to the formation of another Ag 18-x Cu x S (8≤x) nanocluster templated by a central S 2− anion, which possesses a unique electronic structure compared to conventional template-free CuAg nanoclusters. Overall, this work unveils the intriguing doping chemistry of Cu clusters, as well as their capability to create different types of alloy nanoclusters with previously unobtainable structures and multifunctionality.

关键词： nanocluster doping transformation 3D laser printing

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Rücktitelbild: Anomalous Structural Transformation of Cu(I) Clusters into Multifunctional CuAg Nanoclusters (Angew. Chem. 36/2024)

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Angewandte Chemie 2024年第36期136卷

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聚集诱导发光聚合物的制备及其性能研究

聚集诱导发光聚合物的制备及其性能研究

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2012年两岸三地高分子液晶态与超分子有序结构学术会议暨第十二届全国高分子液晶态与超分子有序结构学术论文报告

作者： Anjun Qin 秦安军 Ben Zhong Tang 唐本忠 MoE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science 浙江大学高分子合成及功能构造教育部重点实验室高分子科学与工程学系杭州310027 MoE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science 浙江大学高分子合成及功能构造教育部重点实验室高分子科学与工程学系杭州310027 香港科技大学化学系香港九龙清水湾

聚集诱导发光(AIE)是唐本忠教授于2001年发现的一类非常规的光物理现象：一些螺旋桨状分子在溶液态不发光或发光微弱，而在聚集后荧光显著增强.AIE效应已经引起了世界范围内研究人员的兴趣.目前，已有多种AIE体系被报道，但主要还是集... 详细信息

聚集诱导发光(AIE)是唐本忠教授于2001年发现的一类非常规的光物理现象：一些螺旋桨状分子在溶液态不发光或发光微弱，而在聚集后荧光显著增强.AIE效应已经引起了世界范围内研究人员的兴趣.目前，已有多种AIE体系被报道，但主要还是集中于小分子方面.如果将AIE小分子体系用于器件方面，将需要使用真空蒸镀等复杂工艺以及昂贵的设备，且不利于大面积器件的制备.由于其良好的成膜性和可加工性，聚合物材料可以使用旋涂、打印等简单的方法制备大面积的薄膜，因此引起了人们的关注.
　　在前期工作基础上，本文将报告在具有聚集诱导发光特性的线形和超支化聚合物制备及其性能研究方面的工作.采用炔和叠氮的点击聚合以及季胺化反应等制备了一系列聚合物并研究了它们的聚集行为以及性能和应用，例如良好的透明性、高且可调的折光指数、可光交联图案化、爆炸物检测、细胞成像等.

关键词：聚合物聚集行为点击化学法季胺化反应发光性能

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Engineered Coatings via the Assembly of Amino-Quinone Networks

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Angewandte Chemie 2020年第5期133卷

作者： Qi-Zhi Zhong Dr. Joseph J. Richardson Ai He Dr. Tian Zheng Dr. René P. M. Lafleur Dr. Jianhua Li Dr. Wen-Ze Qiu Denzil Furtado Dr. Shuaijun Pan Prof. Zhi-Kang Xu Prof. Ling-Shu Wan Prof. Frank Caruso MOE Key Laboratory of Macromolecular Synthesis and Functionalization Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia

Engineering coatings with precise physicochemical properties allows for control over the interface of a material and its interactions with the surrounding environment. However, assembling coatings with well-defined properties on different material classes remains a challenge. Herein, we report a co-assembly strategy to precisely control the structure and properties (e.g., thickness, adhesion, wettability, and zeta potential) of coatings on various materials (27 substrates examined) using quinone and polyamine building blocks. By increasing the length of the amine building blocks from small molecule diamines to branched amine polymers, we tune the properties of the films, including the thickness (from ca. 5 to ca. 50 nm), interfacial adhesion (0.05 to 5.54 nN), water contact angle (130 to 40°), and zeta potential (−42 to 28 mV). The films can be post-functionalized through the in situ formation of diverse nanostructures, including nanoparticles, nanorods, and nanocrystals. Our approach provides a platform for the rational design of engineered, substrate-independent coatings for various applications.

关键词： nanostructures quinones self-assembly surface modification thin films

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Back Cover: Anomalous Structural Transformation of Cu(I) Clusters into Multifunctional CuAg Nanoclusters (Angew. Chem. Int. Ed. 36/2024)

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Angewandte Chemie International Edition 2024年第36期63卷

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Correction: Encapsulation of a photosensitizer into cell membrane capsules for photodynamic therapy

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RSC advances 2024年第39期14卷 28956页

作者： Lijie Han Ying Chen Jie Niu Lihua Peng Zhengwei Mao Changyou Gao Department of Polymer Science and Engineering MOE Key Laboratory of Macromolecular Synthesis and Functionalization Zhejiang University Hangzhou 310027 China zwmao@*** +86-571-87951108. Institute of Pharmaceutics College of Pharmaceutical Sciences Zhejiang University Hangzhou P. R. China.

[This corrects the article DOI: 10.1039/C6RA07480D.].

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A Honeybee Stinger Inspired Self-Interlocking Microneedle Patch and its Application in Myocardial Infarction Treatment

SSRN

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SSRN 2022年

作者： Lu, Yuwen Ren, Tanchen Zhang, Hua Jin, Qiao Shen, Liyin Shan, Mengqi Zhao, Xinzhe Chen, Qichao Dai, Haoli Yao, Lin Xie, Jieqi Ye, Di Lin, Tengxiang Hong, Xiaoqian Deng, Kaicheng Shen, Ting Pan, Jiazhen Jia, Mengyan Ling, Jun Li, Peng Zhang, Yue Wang, Huanan Zhuang, Lenan Gao, Changyou Mao, Jifu Zhu, Yang MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou310027 China Department of Cardiology Cardiovascular Key Laboratory of Zhejiang Province Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou310009 China College of Animal Sciences Zhejiang University Hangzhou310058 China Institute of Genetics and Reproduction College of Animal Sciences Zhejiang University Hangzhou China College of Textiles Donghua University Shanghai201620 China Shanghai Banyun Med Tech Co. Ltd. Shanghai201203 China State Key Laboratory of Modern Optical Instrumentation College of Optical Science and Engineering Zhejiang University Hangzhou310027 China Department of Surgery University of California San FranciscoCA United States Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province Department of Cardiology Sir Run Run Shaw Hospital College of Medicine Zhejiang University Hangzhou China Binjiang Institute of Zhejiang University Hangzhou310053 China

Weak tissue adhesion remains a major challenge in clinical translation of microneedle patches. Mimicking the structural features of honeybee stingers, stiff polymeric microneedles with unidirectionally backward facing barbs were fabricated and embedded into various elastomer films to produce self-interlocking microneedle patches. The spirality of the barbing pattern was adjusted to increase interlocking efficiency. In addition, the micro-bleeding caused by microneedle puncturing adhered the porous surface of the patch substrate to the target tissue via coagulation. In the demonstrative application of myocardial infarction treatment, the bioinspired microneedle patches firmly fixed on challenging beating hearts, significantly reduced cardiac wall stress and strain in the infarct, maintained left ventricular function and morphology. In addition, the microneedle patch was minimally invasively implanted onto beating porcine heart in 10 minutes, free of sutures and adhesives. Therefore, the honeybee stinger inspired microneedles could provide an adaptive and convenient means to adhere patches for various medical *** Information: This study is financially supported by the National key Research and Development Program of China (No. 2019YFE0117400), National Natural Science Foundation of China (No. 32000971, 52005097, 81941003), "Leading Goose" R&D Program of Zhejiang, Natural Science Foundation of Shanghai (No. 21ZR1401300).Conflict of Interests: Y.Z., Y.L., C.G., T.R., L.S., X.H. have patent applications (CN113907915A) related to the present study and thus may have related financial interests. All other authors declare no competing *** Approval: All animal experiments were approved by the Institutional Animal Care and Use Committee of Zhejiang University (No. ZJU20210245). © 2022, The Authors. All rights reserved.

关键词： Medical applications

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