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Artificial stepwise light harvesting system in water constructed by quadruple hydrogen bonding supramolecular polymeric nanoparticles

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Chinese Chemical Letters 2024年第2期35卷 370-373页

作者： Tangxin Xiao Xiuxiu Li Liangliang Zhang Kai Diao Zheng-Yi Li Xiao-Qiang Sun leyong wang Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology School of Petrochemical EngineeringChangzhou UniversityChangzhou 213164China Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Stepwise energy transfer is ubiquitous in natural photosynthesis,which greatly promotes the widespread use of solar energy.Herein,we constructed a supramolecular light harvesting system based on sequential energy transfer through the hierarchical self-assembly of M,which contains a cyanostilbene core flanked by two ureidopyrimidinone motifs,endowing itself with both aggregation-induced emission behavior and quadruple hydrogen bonding ability.The monomer M can self-assemble into hydrogen bonded polymers and then form supramolecular polymeric nanoparticles in water through a mini-emulsion process.The nanoparticles were further utilized to encapsulate the relay acceptor ESY and the final acceptor NDI to form a two-step FRET system.Tunable fluorescence including a white-light emission was successfully achieved.Our work not only shows a desirable way for the fabrication of efficient two-step light harvesting systems,but also shows great potential in tunable photoluminescent nanomaterials.

关键词： Light harvesting system Supramolecular polymer Quadruple hydrogen bonding AIE Self-assembly

Recent advances in two-step energy transfer light-harvesting systems driven by non-covalent self-assembly

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Chinese Chemical Letters 2024年第1期35卷 31-39页

作者： Zhiying Wu Hongwei Qian Xiuxiu Li Tangxin Xiao leyong wang Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology School of Petrochemical EngineeringChangzhou UniversityChangzhou 213164China Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Sequential energy transfer is ubiquitous in natural light-harvesting systems(LHSs),which greatly promotes the exploitation of light energy.The LHSs in nature are sophisticated supramolecular assemblies of chlorophyll molecules that carry out efficient light harvesting through cascade energy transfer process.Inspired by nature,scientists have paid much attention to fabricate stepwise LHSs based on assorted supramolecular scaffolds in recent years.Light-harvesting antennas and energy acceptors can be accommodated in particular scaffolds,which offer great convenience for energy transfer between them.These systems not only further mimic photosynthesis,but also demonstrate many potential applications,such as photocatalysis,tunable luminescence,and information encryption,etc.In this review article,aiming at offering a practical guide to this emerging research field,the introduction of construction strategies towards sequential LHSs will be presented.Different scaffolds are classified and highlighted,including host-guest assemblies,metal-coordination assemblies,as well as bio-macromolecular and other supramolecular scaffolds.

关键词： Light-harvesting system Supramolecular self-assembly Sequential energy transfer Tunable fluorescence FRET

Supramolecular systems for bioapplications:recent research progress in China

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Science China Chemistry 2024年第5期67卷 1397-1441页

作者： Yue-Yang Liu Xiao-Yong Yu Yu-Chen Pan Hang Yin Shuang Chao Yujie Li He Ma Minzan Zuo Kun-Xu Teng Jun-Li Hou Yong Chen Dong-Sheng Guo Ruibing wang Yuxin Pei Zhichao Pei Jiang-Fei Xu Xiao-Yu Hu Chunju Li Qing-Zheng Yang leyong wang Yu Liu Zhan-Ting Li State Key Laboratory of Organometallic Chemistry Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional MoleculesShanghai Institute of Organic ChemistryChinese Academy of SciencesUniversity of Chinese Academy of SciencesShanghai 200032China Department of Chemistry Fudan UniversityShanghai 200438China College of Chemistry State Key Laboratory of Elemento-Organic ChemistryCollaborative Innovation Center of Chemical Science and EngineeringNankai UniversityTianjin 300071China State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoMacao 999078China College of Chemistry&Pharmacy Northwest A&F UniversityYangling 712100China Key Lab of Organic Optoelectronics&Molecular Engineering Department of ChemistryTsinghua UniversityBeijing 100084China College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 211106China Key Laboratory of Radiopharmaceuticals Ministry of EducationCollege of ChemistryBeijing Normal UniversityBeijing 100875China Tianjin Key Laboratory of Structure and Performance for Functional Molecules College of ChemistryTianjin Normal UniversityTianjin 300387China State Key Laboratory of Analytical Chemistry for Life Science Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Supramolecular systems feature dynamic,reversible and stimuli-responsive characteristics,which are not easily achieved by molecular entities.The last decade has witnessed tremendous advances in the investigations of supramolecular systems for various bioapplications,which include drug delivery,anticancer therapy,antibacterial therapy,photodynamic therapy,photothermal therapy,combination therapy,antidotes for residual drugs or toxins,and bioimaging and biosensing.Host-guest chemistry has played a key role in the development of such bioactive supramolecular systems,and natural macrocycles(such as cyclodextrins),synthetic macrocycles(such as calixarenes,cucurbit[n]urils,and pillararenes),and porous framework polymers(such as supramolecular organic frameworks and flexible organic frameworks)have been most successfully used as hosts to build different kinds of host-guest systems for attaining designed biofunctions.The self-assembly of rationally designed amphiphilic molecules,macromolecules and polymers represent another important approach for the construction of supramolecular architectures with advanced biofunctions.In this review,we summarize the important contributions made by Chinese researchers in this field,with emphasis on those reported in the past five years.

关键词： host-guest chemistry drug delivery anticancer and antibacterial photodynamic therapy photothermal therapy antidote transmembrane channel bioimaging and biosensing

Diabetic wound healing activated by supramolecular cascade reaction

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Chinese Chemical Letters 2023年第1期34卷 1-2页

作者： Fang-Fang Shen Yuguo wang leyong wang Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China Ultrasound Department Nanjing Lishui District Hospital of Traditional Chinese MedicineNanjing 211200China Key Laboratory of Mesoscopic Chemistry of MOE Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Diabetes is a chronic disease,and its complications such us diabetic foot ulcer and other chronic wounds often cause great pain to patients.Diabetic wounds are more prone to bacterial infection due to the environment of high blood sugar,resulting in difficult wound healing[1].Therefore,how to protect the wound and cure drug-resistant bacterial infections in diabetes is an important scientific problem that needs to be solved.

关键词： wound healing Diabetic

The emerging applications of pillararene architectures in supramolecular catalysis

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Chinese Chemical Letters 2022年第1期33卷 89-96页

作者： Kaiya wang Xueqi Tian Jacobs H.Jordan Krishnasamy Velmurugan leyong wang Xiao-Yu Hu College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 211106China The Southern Regional Research Center Agricultural Research ServiceUSDANew OrleansLA 70124United States Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Over the last decade,numerous research efforts have been devoted to pillar[n]arenes since their debut.The popularity of pillararenes is a reflection of current research trend in supramolecular and macrocyclic chemistry in general.Among the vast applications(such as chemosensors,drug delivery,transmembrance channels,and separation)of pillararenes,their utilization in catalysis is a relatively less explored area.However,soaring attention has been paid by researchers in recent years and this field has seen gradual increasing publications.Therefore,in this review we will discuss progress in the emerging applications of pillararene architectures in catalysis based on various reaction genre including reduction,oxidation,coupling,decomposition and others.Furthermore,this review not only focuses on the pillararenes based current progress in catalysis,but also provides the signs for future development in this research field.

关键词： Supramolecular catalysis Host–guest chemistry Macrocycles Pillararene Self-assembly

The construction of aggregation-induced charge transfer emission systems in aqueous solution directed by supramolecular strategy

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Chinese Chemical Letters 2022年第4期33卷 1975-1978页

作者： Weirui Qian Minzan Zuo Pengbo Niu Xiao-Yu Hu leyong wang Key Laboratory of Mesoscopic Chemistry of MOE Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 211106China Department of Chemistry Xihua UniversityChengdu 610039China

Novel aggregation-induced charge transfer(CT) emission systems with long luminescence lifetime directed by supramolecular strategy have been successfully developed in water. The dimethylacridine-based electron donor(Br Ac) with excellent aggregation ability can co-aggregate with a triazine-based electron acceptor(TRZ) to form nanorods in water, which exhibit CT emission with long lifetime(τ = 0.92 μs).As for a similar electron donor(Qa Ac) with poor aggregation ability, water-soluble pillar[5]arene(WP5)can be introduced to promote the aggregation process, leading to the obvious CT emission with long lifetime(τ = 0.61 μs). In addition, structural modification of the acceptor with substituent groups possessing stronger electron-accepting capabilities will cause red-shift(about 50 nm) of the emission, which allows conveniently constructing long lifetime organic luminescent materials with different emission colors.

关键词： Aggregation-induced charge transfer emission Supramolecular strategy Long luminescence lifetime Self-assemble Co-aggregate

Mechanisms of photoluminescence in the molecular state of carbon dots prepared from o-phenylenediamine

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Chinese Chemical Letters 2023年第7期34卷 1-2页

作者： Feishi Shan Jing Zhang Chengshuang Liao Zhouyu wang leyong wang Asymmetric Synthesis and Chiral Technology Key Laboratory of Sichuan Province Research and Application of Small Organic Chiral Molecules Key Laboratory of Yibin CityDepartment of ChemistryXihua UniversityChengdu 610039China State Key Laboratory of Analytical Chemistry for Life Science Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Carbon dots (CDs) is an emerging photoluminescent (PL) carbon nanomaterial.Since its discovery in 2004 [1],CDs have been used in a wide range of applications such as sensing,optical devices,invitro imaging,in-vivo ima... 详细信息

关键词： material. carbon state

High-resolution and instantaneous imaging of latent fingerprints

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Chinese Chemical Letters 2023年第4期34卷 1-2页

作者： Ming Cheng Juli Jiang Jean-Claude Chambron leyong wang Key Laboratory of Mesoscopic Chemistry of MOE Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Institut de Chimie de Strasbourg UMR 7177CNRSUniversitéde StrasbourgStrasbourg Cedex 67008France

Fingerprints can serve as an information storage platform for individuals and play an important role in forensic investigation and security[1].Most of them are invisible to the naked eye and are called latent fingerprints(LFPs).Conventional imaging techniques suffer from limitations like low resolution and sensitivity[2],restricting the recognition of LFPs to macroscopic features,such as shape,core,ending,bifurcation,island,pores,and so on,which correspond to levels 1 and 2.Features of level 3 including ridges and their edges,are challenging to recognize.

关键词： latent resolution restrict

Chiral selection of Troger's base-based macrocycles with different ethylene glycol chains length in crystallization

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Chinese Chemical Letters 2023年第7期34卷 127-130页

作者： Haohui Feng Yuan Chen Ranran wang Pengbo Niu Conghao Shi Zhen Yang Ming Cheng Juli Jiang leyong wang Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Maanshan High-Tech Research Institute of Nanjing University Maanshan 238200China The Cancer Hospital of the University of Chinese Academy of Sciences(Zhejiang Cancer Hospital) Institute of Basic Medicine and Cancer(IBMC)Chinese Academyof SciencesHangzhou310022China

In the present work,two Troger's base-based macrocycles(TBBMs)with different bridging ethylene glycol chains(T1,n=1;T3,n=3)were successfully synthesized and studied via the crystal analysis.These two TBBMs possess rare rectangular-like cavities and show chiral selection during the crystallization.T1with short glycol chain(n=1)crystallized as racemates,while T3 with long glycol chain(n=3)was found as meso isomer.In contrast to T1 and T3,for T2(n=2)both rac-T2 and meso isomer R2NS2N-T2has been observed in our previous report.Thus,the synthesis of new TBBMs T1 and T3 with different bridging ethylene glycol chains not only makes the study of TBBMs more systematically,but also helps to understand the relationship between the size of the rectangular cavity and the chiral selection of Troger's base-based macrocycles during their crystallization.

关键词： Supramolecular macrocycle Tr?ger’s base Chiral selection Rectangular cavity Glycol chains