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Folic acid-based supramolecules for enhanced stability in potassium ion batteries

中国化学快报:英文版 2023年第9期34卷 284-288页

作者： Yanan Wang Dandan Ouyang Liuqian Yang Chunyan Wang Jian Sun Hui Zhu Jiao Yin Laboratory of Environmental Sciences and Technology Xinjiang Technical Institute of Physics&Chemistryand Key Laboratory of Functional Materials and Devices for Special EnvironmentsChinese Academy of SciencesUrumqi 830000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Changchun Institute of Applied Chemistry Chinese Academy of ScienceChangchun 130022China

Organics present significant prospects as environmentally friendly and sustainable electrode materials for potassium ion batteries(PIBs)because of their abundant,recyclable and highly customizable ***,small molecular organics are easily solubilized in organic electrolytes,resulting in a low capacity and poor ***,the folic acid-based supermolecules(SM-FAs)are successfully prepared by a hydrothermal assisted self-assembly *** to multi-locus hydrogen bonds(HBs)and the cyclizedπ-conjugated interactions,the structural stability of SM-FAs has been significantly improved,and the solubility in carbonate electrolytes has been effectively *** an anode for PIB,the SM-FA-6sample exhibits a large capacity(206 mAh/g at 50 mA/g)and an outstanding cycle stability(capacity retention of 91%after 1000 cycles at 50 m A/g).More impressively,an integrative storage mechanism which combines both the general enolization reaction between C=O groups and K^(+),and the atypicalπ–K^(+)interaction within the assembled conjugation framework,is unraveled for potassium ion *** is envisioned that this facile self-assemble strategy opens up a promising avenue to modulate the stability of small molecular organic electrodes with enhanced storage capacity.

关键词： supramolecules Hydrogen bond Solubility Potassium-ion battery Anode

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Kinetically Controlled Supramolecular Block Copolymer Self-Assembly:Multicolor Photonic Crystal Patterns from a Single Formulation

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CCS Chemistry 2023年第10期5卷 2301-2311页

作者： Shuai Deng Renhua Deng Xi Mao Bijin Xiong Mian Wang Senbin Chen Wolfgang H.Binder Jintao Zhu Zhenzhong Yang State Key Laboratory of Materials Processing and Die&Mould Technology Key Laboratory of Materials Chemistry for Energy Conversion and Storage(Ministry of Education)School of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074 Chair of Macromolecular Chemistry Faculty of Natural Science II(ChemistryPhysicsand Mathematics)Martin Luther University Halle-WittenbergHalle(Saale) Department of Chemical Engineering Tsinghua UniversityBeijing 100084

Photonic crystal(PC)patterns with tunable and changeable nonvolatile structural colors printed from a single ink are of great interest for optical products but have rarely been reported because most inks can only output one respective structural ***,we propose a facile yet effective kinetically controlled self-assembly strategy to address this *** ink formulation containing supramolecular block copolymers(SBCPs)is *** patterns were printed by direct-ink-writing followed by solvent annealing to generate different structural colors by simply controlling the annealing *** self-assembly kinetic regime suggests that different colors result from various kinetically trapped metastable *** turn,the variation in structural color enables“visualization”of the self-assembly ***,we demonstrate that these kinetically trapped structures exhibit different responsive color-change *** addition,this kinetic control strategy can be synergistic with thermodynamic control to extend the color *** study provides a facile yet effective solution for well-designed PC patterns with tunable,responsive,and unfading colors printed from the simplest single-nozzle printer with a single colorless ink,presenting great potential in broad applications,including information storage,encryption,and anti-fake.

关键词： block copolymers self-assembly supramolecules photonic crystals direct write printing kinetics

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Recent Progress in Fluorescent Vesicles with Aggregation-induced Emission

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Chinese Journal of Polymer Science 2019年第4期37卷 352-371,I0006页

作者： Hui Chen Min-Hui Li Chimie ParisTech PSL University ParisCNRSInstitut de Recherche de Chimie Paris Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology

Fluorescent vesicles have recently attracted increasing attention because of their potential applications in bioimaging,diagnostics, and theranostics, for example, in vivo study of the delivery and the distribution of active substances. However, fluorescent vesicles containing conventional organic dyes often suffer from the problem of aggregation-caused quenching(ACQ) of *** vesicles working with aggregation-induced emission(AIE) offer an extraordinary tool to tackle the ACQ issue, showing advantages such as high emission efficiency, superior photophysical stability, low background interference, and high sensitivity. AIE fluorescent vesicles represent a new type of fluorescent and functional nanomaterials. In this review, we summarize the recent advances in the development of AIE fluorescent vesicles. The review is organized according to the chemical structures and architectures of the amphiphilic molecules that constitute the AIE vesicles, i.e., small-molecule amphiphiles, amphiphilic polymers, and amphiphilic supramolecules and supramacromolecules. The studies on the applications of these AIE vesicles as stimuli-responsive vesicles,fluorescence-guided drug release carriers, cell imaging tools, and fluorescent materials based on fluorescence resonance energy transfer(FRET) are also discussed.

关键词： Vesicles Polymersomes Aggregation-induced emission Small-molecule amphiphiles Amphiphilic polymers Amphiphilic supramolecules Amphiphilic supramacromolecules

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pH-Responsive supramolecular micelle based on host-guest interaction of poly(β-amino ester) derivatives and adamantyl-terminated poly(ethylene glycol) for cancer inhibition

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Chinese Chemical Letters 2018年第12期29卷 1839-1844页

作者： Zhuting Yang Yan Peng Liyan Qiu Ministry of Educational (MOE) Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang University

Supramolecular structures have received growing attention and been widely applied in many ***, we synthesized hydrophobic β-cyclodextrin-contained poly(β-amino ester)(PAE-β-CD) and hydrophilic adamantyl-terminated poly(ethylene glycol)(PEG-AD) to form a supramolecular micelle via the host-guest interaction. The micelle displayed pH responsive structure change due to the transform of hydrophobic PAE core to hydrophilic form in weakly acid condition. After the anticancer drug curcumin(Cur) was loaded into the micelle, the drug release behavior of the Cur-loaded micelle was studied, and it turned out that the Cur-loaded supramolecular micelle could effectively unload the drug at pH ***, the antitumor efficiency of the Cur-loaded micelle was also examined both in vitro and in vivo, indicating considerable inhibition ratio as high as 62.14% against mouse sarcoma 180.

关键词： supramolecules Micelle Poly(β-amino ester) pH-Sensitive β-Cyclodextrin Curcumin

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Self-Assembly of Constrained Cyclic Peptides Controlled by Ring Size

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CCS Chemistry 2020年第1期2卷 42-51页

作者： Kuan Hu Wei Xiong Chengjie Sun Chan Wang Jingxu Li Feng Yin Yixiang Jiang Ming-Rong Zhang Zhou Li Xinwei Wang Zigang Li State Key Laboratory of Chemical Oncogenomics The School of Chemical Biology and BiotechnologyPeking UniversityShenzhen Graduate SchoolShenzhen 518055(China) School of Advanced Materials Peking UniversityShenzhen Graduate SchoolShenzhen 518055(China) Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijing 100083(China) Department of Advanced Nuclear Medicine Sciences The National Institute of Radiological SciencesThe National Institutes for Quantum and Radiological Science and TechnologyChiba263-8555(Japan) Pingshan Translational Medicine Center Shenzhen Bay LaboratoryShenzhen 518055(China)

The de novo design of new peptide assemblies that expands the repertoire of biomaterial nanostructures has been of a tremendous ***,it is evident that a successful research achievement in this area would increase the understanding of molecular interactions in supramolecules and create novel scaffolds exploitable in biotechnology and synthetic *** manipulation of cyclic peptide self-assembly is particularly intriguing for this ***,we report that a novel type of cyclic peptides,referred to as chiral tether constrained cyclic peptides(CCP),shows promising self-assembly *** are the first example of a controllable assembly of all-L-α-cyclic peptides with different ring sizes.A noteworthy feature of the CCP system is good tolerance of different secondary structures,ring size,and peptide *** on this system,a variety of nanostructures could be constructed,which display different physical properties,rendering it an excellent platform for molecular interaction ***,demonstrate potential applications of these peptide assemblies in bioimaging and energy storage.

关键词： cyclic peptide self-assembly chiral center ring size nanostructure supramolecules supercapacitor

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Research on the design synthesis and structural transformation of molecular figure-eight and trefoil knot

Research on the design synthesis and structural transformati...

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河南省化学会2020年学术年会

作者：李婷婷党理龙张淑华马录芳洛阳师范学院化学化工学院桂林理工大学化学与生物工程学院

Due to the inherent complex topological properties and the function of biological simulation,the study of molecular knot compounds has been in the forefront of supramolecular ***,most of molecular knot compounds still exist only as mathematical symbols,and very few of them are synthesized *** is mainly due to its complex entanglement which brings great challenges to design and synthesis. To overcome these challenges,synthetic chemists designed a template-free coordination driven self-assembly *** on the advantages of the half-sandwich construction unit Cp*Ir/Rh (Cp*=pentamethyl-cyclopentadienyl),the method has shown excellent advantages in complex supramolecular synthesis,such as better solubility,directional coordination,and diverse types of coordination *** this article,based on half a sandwich rhodium building units,we designed and synthesized flexible pyridine ligands with multiple conjugate centers and chelating ligands,through coordination drive self-assembly,a series of discrete"8"shaped molecules and trefoil knot structures were *** the guest and solvent induction can realize the reversible topological structure transformation between the trefoil knot structure and organometallic ring!The structure and transformation characteristics of the compound were studied in detail by NMR spectroscopy and single crystal X-ray diffraction *** synthesis and properties of these compounds play a vital role in promoting the development of molecular machines and intelligent materials.

关键词： supramolecules Hydroxy hydrocarbons Molecular knot Structural transformation

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超分子聚合物自组装-解组装途径构筑新型纳米材料

超分子聚合物自组装-解组装途径构筑新型纳米材料

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2012年全国高分子材料科学与工程研讨会

作者：邓仁华朱锦涛华中科技大学化学与化工学院

＜正＞三维空间受限条件下,由于各嵌段之间的微相分离,嵌段共聚物通过自组装可以形成各种纳米结构的微球,这些具有特殊内部结构的微球在药物释放、催化、光子晶体等领域有重要的应用前景。微球的内部微结构可以通过调节嵌段的体积分数... 详细信息

＜正＞三维空间受限条件下,由于各嵌段之间的微相分离,嵌段共聚物通过自组装可以形成各种纳米结构的微球,这些具有特殊内部结构的微球在药物释放、催化、光子晶体等领域有重要的应用前景。微球的内部微结构可以通过调节嵌段的体积分数来调节,例如加入某一

关键词： supramolecules Mesoporous particles Nano-objects Self-assembly Disassembly

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软金属配位高分子:新型功能材料

软金属配位高分子:新型功能材料

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中国化学会第28届学术年会

作者：阎云杨璐梁亚唯赵靖黄建滨北京大学化学与分子工程学院

＜正＞软金属配位高分子（SCSP）是在溶液中存在的金属配位超分子结构,是最近五年超分子化学领域迅速崛起的一个研究热点。我们通过静电作用实现了SCSP有效组装,制备出成具有独特功能的软物质微钠器件。例如,通过形成静电复合胶束,含有... 详细信息

＜正＞软金属配位高分子（SCSP）是在溶液中存在的金属配位超分子结构,是最近五年超分子化学领域迅速崛起的一个研究热点。我们通过静电作用实现了SCSP有效组装,制备出成具有独特功能的软物质微钠器件。例如,通过形成静电复合胶束,含有铕离子的金属配位超分子荧光可以显著增强;含有铁离子的胶束能够实现氧化还原可控的释放与摄取。而通过静电层层组装,含铁的金属配位高分子修饰的电极能够显著降低电极的超电势,从而降低电化学反应的活化能并显著增强催化电流。我们的研究表明,软金属配位高分子将在软物质功能器件领域大放异彩。

关键词： Coordiantion Polymers supramolecules PIC micelles Fluorescence Electrochemistry

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