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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

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

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

The application of clean production in organic synthesis

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Chinese Chemical Letters 2021年第5期32卷 1637-1644页

作者： Jun Jiang Fang Xiao Wei-Min He Leyong wang School of Chemistry and Chemical Engineering University of South ChinaHengyang 421001China Xiangya School of Public Health Central South UniversityChangsha 410078China Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Clean production,as an important part of green chemistry,has received great attention and considerable development in recent years.In this perspective article,we summarized some examples of(nearly)quantitative synthesis,clean separation and purification to emphasize clean production.These reactions were carried out by using eco-friendly solvents and the pure products could be easily obtained through clean procedures.

关键词： Green chemistry Green solvent Water Solvent free Purification

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

Construction of a sequential light-harvesting system via supramolecular copolymerization

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中国化学快报:英文版 2023年第8期34卷 1-2页

作者： Hongwei Qian Tangxin Xiao Robert B.P.Elmes Leyong wang School of Petrochemical Engineering Changzhou UniversityChangzhou 213164China Department of Chemistry Maynooth UniversityNational University of IrelandMaynoothCo.KildareIreland State Key Laboratory of Analytical Chemistry for Life Science Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

The current energy crisis is a worldwide problem and the search for clean and economic energy production is a global challenge.In this context,the exploitation and utilization of solar energy is becoming more and more popular.Photosynthesis in nature sets an outstanding example to harvest,transfer and store solar energy[1].In most of the photosynthetic organisms such as purple photosynthetic bacteria,the rigid protein scaffolds serve as key elements to bind pigments and control their excitation energy transfer.Sequential energy transfer is especially intriguing in this field to make full use of full-band solar energy.To mimic natural photosynthesis[2].

关键词： becoming harvesting store

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

Construction of molecular nanotubes with precise length,diameter and chirality

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中国化学快报:英文版 2023年第9期34卷 3-4页

作者： Qiaona Zhang Hongwei Qian Tangxin Xiao Robert B.P.Elmes Leyong wang School of Petrochemical Engineering Changzhou UniversityChangzhou 213164China Department of Chemistry Maynooth UniversityNational University of IrelandMaynoothCo.KildareIreland State Key Laboratory of Analytical Chemistry for Life Science Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Molecular nanotubes are nanoscale organic materials with tubular architecture,that show potential applications in molecular recognition/separation,cross-membrane transportation,catalysis in confined spaces,and nanoelectronics[1].However,the precise construction of molecular nanotubes with well-defined cavity sizes and shapes is non-trivial.

关键词： precise sizes molecular