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Aggregate 2024年第2期5卷 250-260页

作者： Hao Rao Zicheng Liu Ming Chen Canze Zheng Liping Xu Junkai Liu jacky.w.y.lam Baojun Li Xianguang yang Ben Zhong Tang Institute of Nanophotonics College of Chemistry and Materials ScienceGuangdong Provincial Key Laboratory of Nanophotonic ManipulationJinan UniversityGuangzhouChina Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionGuangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic MaterialsThe Hong Kong University of Science and TechnologyKowloonHong KongChina School of Science and Engineering Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong KongShenzhen(CUHK-Shenzhen)GuangdongChina

The development of high-performance organic blue light-emitting emitters is in urgent to act as an excitation source to contribute the white light *** the other hand,the investigation on optical waveguides have been received increasing attentions because they can manipulate the light propagation accurately in the microscale to boost the optoelectronic and energy conversion *** this work,we facilely prepared a deep-blue aggregation-induced emission(AIE)dye,namely TPP-4OMe,which shows high luminescent efficiency,narrow emission band and good stability in the aggregate ***-4OMe can be fabricated as deep-blue AIE microfibers readily with definite morphology and *** on the AIE microfibers,the active waveguide to transmit deep-blue emission signals can be achieved with a very low optical loss coefficient(α)of 6.7×10^(−3)dBμm^(−1).Meanwhile,the full-visible broadband low-loss passive waveguide can be well performed with these AIE microfibers,which has never been observed in the pure organic *** interestingly,the excellent properties of AIE microfibers enable them to act as a wave-guiding excitation source,resulting in a distinct and pure white light *** present work not only provides excellent blue light-emitting materials but also bridges the waveguide to realize the efficient white light emission to accelerate the practical applications.

关键词： AIE microfiber deep-blue emission energy transfer optical waveguide white light emission

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Photodegradation-Induced Turn-On Luminescence of Tetraphenylethylene-Based Trithiocarbonate Polymers

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Chinese Journal of Chemistry 2021年第10期39卷 2837-2842页

作者： Hanchen Shen wenjie wu Shunjie Liu Jing Zhang jacky wylam Ben Zhong Tang Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute of Advanced StudyThe Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Department of Laboratory Medicine Nanfang HospitalSouthern Medical UniversityGuangzhouGuangdong 510515China HKUST Shenzhen Research Institute No.9 Yuexing 1 st RDSouth Area Hi-tech ParkNanshanShenzhenGuangdong518057 China Center for Aggregation-induced Emission SCUT-HKUST Joint Research InstituteState Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhouGuangdong510640 China HKUST AIE Institute Guangzhou Development DistrictHuangpuGuangzhouGuangdong510530 China Guangdong-Hong Kong-Macao Joint laboratory of Optoelectronic and Magnetic Functional Materials The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina

Main observation and conclusion Fluorescent intelligent materials have attracted wide attention because of their great potential *** major hurdle for the development and application of fluorescent intelligent materials is the aggregation-caused quenching effect in the solid ***,tetraphenylethylene-based trithiocarbonate polymers with satisfactory molecular weights(Mw up to 24900)were synthesized through a one-pot polymerization route under mild *** polymers were non-emissive due to the quenching effect of the trithiocarbonate ***,upon UV irradiation,the polymers degraded and strong emission from the tetraphenylethylene unit was *** a unique property endows them with great potential applications,such as photopatterning,anti-counterfeit labels,and UV detection.

关键词： Photochemistry Trithiocarbonate polymers Luminescence Polymerization Aggregation-induced emission

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1-((12-Bromododecyl)oxy)-4-((4-(4-pentylcyclohexyl)phenyl)ethynyl) benzene: Liquid crystal with aggregation-induced emission characteristics

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Science China Chemistry 2013年第9期56卷 1191-1196页

作者： CHEN yaFei LIN JieSheng yUAN wangZhang yU ZhenQiang lam jacky wingyip TANG Ben Zhong Shenzhen Key Laboratory of Functional Polymers School of Chemistry and Chemical EngineeringShenzhen University National Institutes for Food and Drug Control School of Chemistry and Chemical engineering Shanghai Jiao Tong University Department of Chemistry The Hong Kong University of Science & Technology

The luminescent liquid crystals (LLCs) are expected to solve the conflicts between the aggregation caused quenching and the requirement of aggregation or self-organization for LCs. Herein, we developed a new strategy of applying aggregation-induced emission (AIE) phenomenon to the molecular design of LCs towards LLCs. In this report, a calamitic liquid crystal based on tolane with AIE characteristics was successfully synthesized and the chemical structure was characterized by 1H, 13C NMR, and matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) high-resolution mass spectra. The fluorescence behavior was studied by fluorescence spectroscopy and the liquid crystal phase behaviors were investigated by differential scanning calorimetry (DSC), polarized optical microscopy (POM). The crystal structure was obtained by X-ray diffraction crystallography with P1 space group. Results demonstrated that the sample was AIE active and the LC phases sequence during cooling was nematic, smectic C and smectic B phase.

关键词： aggregation-induced emission tolane liquid crystal phase behavior

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white-light emission from organic aggregates:a review

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Advanced Photonics 2022年第1期4卷 13-29页

作者： Jianyu Zhang Xueqian Zhao Hanchen Shen jacky.w.y.lam Haoke Zhang Ben Zhong Tang The Hong Kong University of Science and Technology Department of ChemistryHong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstructionand Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional MaterialsClear Water BayKowloonHong KongChina Zhejiang University MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringHangzhouChina ZJU-Hangzhou Global Scientific and Technological Innovation Center HangzhouChina South China University of Technology Guangdong Provincial Key Laboratory of Luminescence from Molecular AggregatesGuangzhouChina The Chinese University of Hong Kong Shenzhen Institute of Aggregate Science and TechnologySchool of Science and EngineeringShenzhenChina AIE Institute Guangzhou Development DistrictGuangzhouChina

white light,which contains polychromic visible components,affects the rhythm of organisms and has the potential for advanced applications of lighting,display,and *** with traditional incandescent bulbs and inorganic diodes,pure organic materials are superior in terms of better compatibility,flexibility,structural diversity,and environmental *** the past few years,polychromic emission has been obtained based on organic aggregates,which provides a platform to achieve white-light *** white-light emitters are sporadically reported,but the underlying mechanistic picture is still not fully *** on these considerations,we will focus on the single-component and multicomponent strategies to achieve efficient white-light emission from pure organic ***,single-component strategy is introduced from four parts:dual fluorescence,fluorescence and phosphorescence,dual phosphorescence with anti-Kasha’s behavior,and ***,doping,supramolecular assembly,and cocrystallization are summarized as strategies for multicomponent *** the construction strategies of white-light emitters,their advanced representative applications,such as organic light-emitting diodes,white luminescent dyes,circularly polarized luminescence,and encryption,are also *** is expected that this review will draw a comprehensive picture of white-light emission from organic aggregates as well as their emerging applications.

关键词： aggregate white-light emission aggregation-induced emission organic mechanism

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HyPERBRANCHED CONJUGATIVE MACROMOLECULES CONSTRUCTED FROM TRIPLE-BOND BUILDING BLOCKS

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Chinese Journal of Polymer Science 2005年第6期23卷 567-591页

作者： Matthias HaeuBler Hong-chen Dong jacky wing yip lam Rong-hua Zheng An-jun Qin Ben-zhong Tang Department of Chemistry The Hong Kong University of Science ＆ Technology Clear Water Bay Kowloon Hong Kong China Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China

Polycyclotrimerization and polycoupling of acetylenic monomers respectively furnish hyperbranched polyarylenes and polyynes with high molecular weights （up to 1 × 10^6） in high yields （up to 99.9%）. The polymers possess low intrinsic viscosities and high thermal stabilities, losing little of their weights when heated to 〉 400℃. Upon pyrolysis at 〉 800℃, the polymers graphitize with high char yields （up to 86%）. Hyperbranched polyarylenes efficiently emit deep-blue to blue-green lights with fluorescence quantum yields up to 98% and strongly attenuate intense laser pulses with optical power-limiting performances superior to that of C60, a well-known optical limiter. Poly（alkenephenylenes）, poly（aroylarylenes） and polyynes are readily cross-linkable by UV irradiation, serving as excellent photoresist materials for the generation of patterns with nanometer resolution. Thin films of hyperbranched polyynes exhibit very high refractive indexes （n up to 1.86）. The internal and terminal acetylene moieties of the polyynes readily form complexes with cobalt carbonyls, which can be transformed into soft ferromagnetic ceramics with high magnetic susceptibilities （Ms up to ca. 118 emu/g） and near-zero magnetic losses.

关键词： Hyperbranched polymers Alkyne polycyclotrimerization Alkyne polycoupling Polyarylenes Polyynes Optical materials Photoresists Soft ferromagnetic ceramics

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In Situ Generation of N-Heteroaromatic Polymers:Metal-Free Multicomponent Polymerization for Photopatterning,Morphological Imaging,and Cr(Ⅵ)Sensing

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CCS Chemistry 2022年第7期4卷 2308-2320页

作者： yubing Hu Neng yan Xiaolin Liu Lingyu Pei Canbin ye wen-Xiong wang jacky.w.y.lam Ben Zhong Tang Department of Chemistry The Hong Kong Branch of ChineseNational Engineering Research Center for Tissue Restoration and ReconstructionInstitute for Advanced StudyThe Hong Kong University of Science and TechnologyGuangdong-Hong Kong-Macro Joint Laboratory of Optoelectronic and Magnetic Functional MaterialsClear Water BayKowloonHong Kong 999077 HKUST-Shenzhen Research Institute NanshanShenzhen 518057 School of Energy and Environment State Key Laboratory of Marine PollutionCity University of Hong KongKowloonHong Kong 999077 Center for Aggregation-Induced Emission From Molecular AggregatesSCUT-HKUST Joint Research InstituteState Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou 510640 Shenzhen Institute of Molecular Aggregate Science and Engineering School of Science and EngineeringThe Chinese University of Hong KongShenzhenGuangdong 518172 AIE Institute Guangzhou Development DistinctHuangpuGuangzhou 510530

Electron-deficient N-heteroaromatic polymers are crucial for the high-tech applications of organicmaterials,especially in the electronic and optoelectronic ***,the development of new polymerizations to afford adaptable electron-donating-accepting scaffolds in N-heteroaromatic polymers is in high ***,we have developed metal-free multicomponent polymerizations of diynes,diamines,and glyoxylates successfully for in situ generation of poly(quinoline)s with high molecular weights(Mw up to 16,900)in nearly quantitative *** tuning the electron distributions of the polymer backbones,the resulting poly(quinoline)s showed various aggregation-induced behaviors and photoresponsive abilities:The thin films of the poly(quinoline)s could be fabricated readily intowell-resolved photopatterns by photolithography *** could be utilized as fluorescent probes to visualize themorphologies of polymer materials directly;these include spherulites and microphase separation of polymer *** nanoparticles demonstrated sensitive and highly selective fluorescence quenching to hexavalent chromium ion Cr(Ⅵ),thereby providing access for biological imaging of Cr(Ⅵ)in unicellular algae.

关键词： heteroaromatic polymers multicomponent polymerization morphology photopatterns chromium sensor

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Polarity-triggered anti-Kasha system for high-contrast cell imaging and classification

Aggregate

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Aggregate 2023年第2期4卷 216-226页

作者： Junyi Gong Peifa wei Junkai Liu yuncong Chen Zheng Zhao weijun Zhao Huilin Xie Chao Ma jacky.w.y.lam Kam Sing wong ying Li Ben Zhong Tang Shenzhen Institute of Aggregate Science and Technology School of Science and EngineeringThe Chinese University of Hong KongShenzhenChina Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionInstitute for Advanced StudyState Key Laboratory of Molecular NanoscienceDivision of Life Science and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and TechnologyClear Water BayKowloonChina Institutes of Physical Science and Information Technology Anhui UniversityHefeiChina Department of Physics HKUSTKowloonChina Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology The NMPA and State Key Laboratory of Respiratory DiseaseInnovation Research Center for AIE Pharmaceutical BiologySchool of Pharmaceutical Sciences and the Fifth Affiliated HospitalGuangzhou Medical UniversityGuangzhouChina Center for AIE Research Shenzhen Key Laboratory of Polymer Science and TechnologyGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Material Science and EngineeringShenzhen UniversityShenzhenChina Center for Aggregation-Induced Emission SCUT-HKUST Joint Research InstituteState Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhouChina AIE Institute Guangzhou Development DistrictHuangpuChina

Kasha’s rule,which states that all exciton emissions occur from the lowest excited state and are independent of excitation energy,makes high-energy excitons difficult to use and severely hinders the widespread applications of organic photoluminescent materials in the real *** decades,scientists have tried to break this rule to unleash the power of high-energy excitons,but only minimal progress has been achieved,with no rational guiding principles provided,and few applications *** far,breaking Kasha’s rule has remained a purely academic *** this paper,we introduce a design principle for a purely organic anti-Kasha system and synthesise a series of compounds based on the design *** predicted,these compounds all display evident S_(2) emissions in dilute *** addition,we introduce a highly accurate(over 90%)convolutional neural network as an assistant for the classification of cells using anti-Kasha luminogens,thereby providing a new application direction for anti-Kasha systems.

关键词： anti-Kasha cell classification excited-state dynamics fluorescence

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具有不同长度间隔基的含联苯基团的侧链液晶聚炔的荧光行为(英文)

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物理化学学报 2010年第8期26卷 2281-2285页

作者：余振强张昕李子臣陈尔强 lam jacky w. y. 唐本忠北京大学化学与分子工程学院高分子科学与工程系高分子化学与物理教育部重点实验室北京分子科学国家实验室北京100871 深圳大学化学与化工学院深圳市功能高分子重点实验室广东深圳518060 香港科技大学化学系香港九龙

对一系列具有不同长度间隔基的含联苯基团的侧链液晶聚炔的稳态荧光和荧光衰减行为进行了研究.为便于比较,选取其中一个单体作为模型化合物.稳态荧光光谱结果表明,聚合物和单体均显示一个荧光发射,该荧光发射来源于聚合物侧链的联苯基团... 详细信息

对一系列具有不同长度间隔基的含联苯基团的侧链液晶聚炔的稳态荧光和荧光衰减行为进行了研究.为便于比较,选取其中一个单体作为模型化合物.稳态荧光光谱结果表明,聚合物和单体均显示一个荧光发射,该荧光发射来源于聚合物侧链的联苯基团.随着间隔基长度的减小,聚合物的荧光强度降低.荧光衰减结果表明单体的荧光衰减可以拟合为一个单指数衰减,而聚合物的荧光衰减拟合为三指数衰减.这种三指数衰减可能由溶液局部高浓度引起的猝灭和侧链联苯基团的旋转受阻所引起.溶剂效应表明,溶剂与联苯基团之间的相互作用随溶剂极性增加而增大.

关键词：稳态荧光单取代聚炔联苯荧光寿命溶剂效应

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A Simple Approach to Bioconjugation at Diverse Levels: Metal-Free Click Reactions of Activated Alkynes with Native Groups of Biotargets without Prefunctionalization

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Research 2018年第1期2018卷 172-183页

作者： Xianglong Hu Xueqian Zhao Benzhao He Zheng Zhao Zheng Zheng Pengfei Zhang Xiujuan Shi Ryan T.K.Kwok jacky.w.y.lam Anjun Qin Ben Zhong Tang Department of Chemistry Hong Kong Branch of Chinese National EngineeringResearch Center for Tissue Restoration and ReconstructionInstitute of Advanced StudyState Key Laboratory of Molecular NanoscienceDivision of Life Science and Diversion of Biomedical EngineeringTe Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Ministry of Education Key Laboratory of Laser Life Science&Institute of Laser Life Science College of BiophotonicsSouth China Normal UniversityGuangzhou 510631China HKUST-Shenzhen Research Institute Shenzhen 518057China NSFC Center for Luminescence from Molecular Aggregates SCUT-HKUST Joint Research InstituteState Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou 510640China

Te efcient bioconjugation of functional groups/molecules to targeted matrix and bio-related species drives the great development of material science and biomedicine,while the dilemma of metal catalysis,uneasy premodifcation,and limited reaction efciency in traditional bioconjugation has restricted the booming development to some ***,we provide a strategy for metal-free click bioconjugation at diverse levels based on activated *** a proof-of-concept,the abundant native groups including amine,thiol,and hydroxyl groups can directly react with activated alkynes without any modifcation in the absence of metal *** this strategy,high-efcient modifcation and potential functionalization can be achieved for natural polysaccharide,biocompatible polyethylene glycol(PEG),synthetic polymers,cell penetrating peptide,protein,fast whole-cell mapping,and even quick diferentiation and staining of Gram-positive bacteria,***,current metal-free click bioconjugation strategy based on activated alkynes is promising for the development of quick fuorescence labeling and functional modifcation of many targets and can be widely applied towards the fabrication of complex biomaterials and future in vivo labeling and detection.

关键词： proof catalysis biomaterials

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ASBase:The universal database for aggregate science

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Aggregate 2023年第1期4卷 148-157页

作者： Junyi Gong wanjun Gong Bowu Haoran wang wei He Zhongyang Dai yangzhong Li yong Liu Zhiming wang Xiaojun Tuo jacky.w.y.lam Zijie Qiu Zheng Zhao Ben Zhong Tang Shenzhen Institute of Aggregate Science and Technology School of Science and EngineeringThe Chinese University of Hong KongShenzhenGuangdongChina AIE-Institute State Key Laboratory of Luminescence Materials and DevicesCenter of Aggregation-induced EmissionKey Laboratory of Luminescence from Molecular Aggregates of Guangdong ProvinceSouth China University of Technology(SCUT)GuangzhouChina High Performance Computing Department National Supercomputing Center in ShenzhenShenzhenChina Department of Chemistry Hong Kong University of Science and TechnologyKowloonHong KongChina

This paper reports the first universal and versatile database on aggregate materials for the field of aggregate science *** the current stage,the database(http://119.***.135.188:8080/)contains over 1000 entries of organic aggregate material systems(mainly luminescent systems at the current stage)with a unique data structure which is designed particularly for aggregate materials and containing the photophysics and physicochemical properties of the compounds in different statuses of aggregation,including dilute solution form,pristine solid-state,stable crystalline,and nanoaggregates formed in *** web-based interface of the database provided functions to index,search,manipulate,fetch and deposit data *** addition,a background calculation service optimizes the chemical structure of new entries on different levels of *** database also provided background API for interactive developments of prediction or regression models based on machine-learning algorithms.

关键词： aggregate science aggregation-induced emission data-driven model database

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