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Near-infrared organic photosensitizers with aggregation-induced emission and switchable fluorescence for fungal infection therapy

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Science China Chemistry 2025年

作者： Xinzhe Yang Zixuan Huang Keke Ding Huili Yang Lirong Wang qing Xia Rong Hu Guang Shi Bingjia Xu anjun qin School of Chemistry South China Normal University State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates Center for Aggregation-Induced Emission AIE Institute South China University of Technology Department of Urology The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College) School of Chemistry and Chemical Engineering University of South China

The development of near-infrared (NIR) photosensitizers with aggregation-induced emission (AIE) properties,switchable luminescence colors,and satisfactory photodynamic therapy (PDT) effects on the treatment of fungal infection is of great importance but very ***,two ionic organic luminogens are constructed by employing diphenylamine,diphenylacrylonitrile/1,2-diphenylethene,and methylated quinoline cation as building *** is found that the resulting compounds TCQF and TQF show apparent AIE properties and produce intense fluorescence with high photoluminescence quantum yields of up to 31.2%in the solid *** the meantime,their emission colors can be switched between red and NIR and in the NIR region by mechanical force and solvent vapor,respectively,thereby enabling remarkable and reversible mechanochromism with emission variations of up to 104 *** excitingly,TCQF and TQF can efficiently generate ROS under the illumination of white light and show excellent antimicrobial activities and satisfactory PDT *** by the unique anti-fungus properties,TCQF is employed as a biocompatible NIR photosensitizer for treating wound infection with ***,and apparent PDT effects are *** work provides a new direction for the development of multifunctional NIR materials with AIE properties.

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A general strategy for realization of efficient room-temperature phosphorescence from amorphous metal-free small molecules

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Science China Chemistry 2018年第6期61卷 635-636页

作者： anjun qin Center for Aggregation-Induced Emission State Key Laboratory of Luminescent Materials and Devices South China University of Technology

Luminescent materials with room-temperature phosphorescence(RTP)have drawn tremendous attention due to their remarkable advantages,such as long emission wavelength and lifetime,large Stokes shift,and high signal-noise ***,most RTP materials are inorganics or organometallic complexes containing expensive and toxic noble *** promote the development of the field of RTP,it is necessary and important to design and prepare metal-free RTP materials because of their potential applications in molecular switches,anti-counterfeiting,chemical sensors and biological imaging,etc.[1].

关键词：有机金属房间温度磷光小分子非结晶 RTP 光材料建筑群

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Structural Controls of Tetraphenylbenzene-based AIEgens for Non-doped Deep Blue Organic Light-emitting Diodes

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Chemical Research in Chinese Universities 2021年第1期37卷 16-24页

作者： HAN Pengbo qin anjun TANG Ben Zhong1 2State Key Laboratory of Luminescent Materials and DevicesGuangdong Provincial Key Laboratory of Luminescence from Molecular AggregatesSCUT-HKUST Joint Research InstituteAIE InstituteCenter for Aggregation-induced EmissionSouth China University of Technology(SCUT)Guangzhou510640P.R.China Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration and ReconstructionInstitute for Advanced Studyand Department of Chemical and Biological EngineeringThe Hong Kong University of Science&Technology(HKUST)Clear Water BayKowloonHong KongP.R.China

Aggregation-induced emission(AIE)has emerged as a new concept,giving highly efficient solid-state ***,AIE luminogens(AIEgens)with deep blue emission(400–450 nm)have displayed salient advantages for non-doped organic light-emitting diodes(OLEDs).However,deep blue emitters with Commission Internationale de L’Eclairage(CIE)coordinates less than 0.08 are still *** this review,we outline the latest achievements in the molecular guidelines based on the AIE core of tetraphenylbenzene(TPB)for developing efficient deep blue *** provide insights into the construction of deep blue emitters with high horizontal orientation by regulating the length of the linear *** also discuss the luminescence mechanisms of these AIEgens-based OLEDs by using the magnetic field effects ***,a summary of the challenges and perspectives of deep blue AIEgens for non-doped OLEDs is also presented.

关键词： Aggregation-induced emission(AIE) Non-doped device Organic light-emitting diode Deep blue emitter Tetraphenylbenzene

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Special topic on aggregation-induced emission

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Science China Chemistry 2018年第8期61卷 879-881页

作者： anjun qin Ben Zhong Tang State Key Laboratory of Luminescent Materials and Devices Center for Aggregation-Induced Emission Guangzhou International CampusSouth China University of Technology Department of Chemistry Hong Kong Branch of National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study and Department of Chemical and Biological Engineering The Hong Kong University of Science & Technology

Aggregation-induced emission（AIE）,conceptually termed in 2001 by our group at the Hong Kong University of Science＆Technology,refers to a unique phenomenon that a kind of nonemissive or weakly emissive molecules in ... 详细信息

关键词： AIE In BODIPY Special topic on aggregation-induced emission

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Special topic on research frontier in polymer science in China

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Science China Chemistry 2016年第12期59卷 1529-1530页

作者： anjun qin Ben Zhong Tang State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640. China Department of Chemistry Hong Kong Branch of National Engineering Research Center for Tissue Restoration and Reconstruction The Hong Kong University of Science & Technology Clear Water Bay Kowloon Hong Kong China

Polymer science is a multiple discipline that studies synthe- sis, structure, function and application of macromolecules. It encompasses subdisciplines of polymer chemistry, phys- ics and engineering. Despite the fact... 详细信息

关键词： Special topic on research frontier in polymer science in China

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Diverge from the norm

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National Science Review 2014年第1期1卷 22-24页

作者： Zhen Li anjun qin Department of Chemistry Wuhan University Department of Polymer Science and Engineering Zhejiang University Guangdong Innovative Research Team State Key Laboratory of Luminescent Materials and DevicesSouth China University of Technology

It has been a general belief that luminophore aggregation normally quenches light *** conceptualization of‘aggregation-induced emission’(AIE)breaks this‘common law’and provides a new stage for the exploration of practically useful light-emiting *** booming development in this emerging area of research has recently been showcased at the First International Symposium on Aggregation-Induced Emission(ISAIE)held in Wuhan,China.

关键词： AIE Diverge from the norm

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Recyclable Cu nanoparticle catalyzed azide-alkyne click polymerization

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Science China Chemistry 2019年第8期62卷 1017-1022页

作者： Yizhao Chen Benzhao He anjun qin Ben Zhong Tang State Key Laboratory of Luminescent Materials and Devices Center for Aggregation-Induced EmissionSouth China University of TechnologyGuangzhou 510640China Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced StudyDepartment of Chemical and Biological EngineeringThe Hong Kong University of Science & Technology Hong KongChina

The Cu(I)-catalyzed alkyne-azide cycloaddition(CuAAC) has been developed into a powerful polymerization reaction for the synthesis of new polytriazoles with versatile properties. However, research on recyclable and reusable copper catalyst for click polymerization to meet the requirement of green chemistry was rarely reported. Copper nanoparticles were reported to be capable catalysts for CuAAC. Replacing conventional copper catalyst with copper nanoparticles may realize the recycle and reuse of the copper catalyst in click polymerization. In this paper, copper nanoparticles were prepared and used as an effective catalyst for click polymerization, and soluble polytriazoles with high molecular weights were obtained in excellent yields under optimized reaction conditions. Importantly, the copper nanoparticles can be recycled and reused for up to 11 times for the click polymerization. Moreover, introducing aggregation-induced emission(AIE)-active moiety of tetraphenylethylene into the monomers makes the resultant polymers retain the AIE feature. This work not only provides an efficient recyclable catalytic system for the azide-alkyne click polymerization, but also might inspire polymer chemists to use recyclable copper species to catalyze other polymerizations.

关键词： click polymerization Cu nanoparticles recyclability reusability

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X-yne click polymerization

Aggregate

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Aggregate 2023年第5期4卷 12-33页

作者： Xinyao Fu anjun qin Ben Zhong Tang State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Luminescence from Molecular AggregatesSouth China University of TechnologyGuangzhouChina Center for Aggregation-Induced Emission AIE InstituteSouth China University of TechnologyGuangzhouChina School of Science and Engineering Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong KongShenzhenGuangdongChina Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration and Reconstruction The Hong Kong University of Science&TechnologyKowloonHong KongChina

Alkyne-based click polymerizations have been nurtured into a powerful synthetic technique for the preparation of new polymers with advanced structures and versatile *** them,the emerging thiol-yne,hydroxyl-yne,and amino-yne click polymerizations have made remarkable progress from reactions to *** polymerizations avoid the usage of inherently dangerous monomers and are safer to operate than the classical azide-alkyne click polymerization(AACP),making them more prospective for diverse *** greatly promote the new alkyne-based click polymerizations beyond AACP,a new concept of“X-yne click polymerization”is proposed to unify them,where“X”denotes the monomers that can react with alkynes under mild reaction conditions,including thiols,alcohols,amines,and other promising *** this review,we mainly present a brief account of the progress of X-yne click polymerization and discuss in detail the challenges and opportunities in this field.

关键词： alkyne-based polymerization click chemistry click polymerization

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Responsive hyperbranched poly(formyl-1,2,3-triazole)s toward quadruple-modal information security protection

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Science China Chemistry 2022年第4期65卷 771-777页

作者： Baixue Li Zhen Li Kai You anjun qin Ben Zhong Tang State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Luminescence from Molecular AggregatesCenter for Aggregation Induced EmissionSouth China University of TechnologyGuangzhou 510640China Shenzhen Institute of Molecular Aggregate Science and Engineering School of Science and EngineeringThe Chinese University of Hong KongShenzhen 518172China Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006China Foshan Nanhai Guangdong Technology University CNC Equipment Cooperative Innovation Institute Foshan 528225China

Secrecy has received tremendous attention in modern information society. Innovative polymer-based fluorescent materials with multiple mode emission are quite desirable to achieve multistage data security. Herein, a series of soluble and thermally stable hyperbranched poly(formyl-1,2,3-triazole)s(hb-PFTAs) with high molecular weights were facilely prepared by catalyst-free polycycloaddition of aldehyde-activated internal triyne and diazides. Functional moieties of triphenylamine and binaphthyl could be incorporated into the polymers to offer them with unique fluorescence and circular dichroism properties, *** taking advantage of activated ethynyl and aldehyde groups on their peripheries and in the internal branch chains, the hbPFTAs can undergo efficient single-and double-stage post-functionalization. More importantly, based on the remarkable fluorescence responses to hydrazine and hydrochloric acid, the hyperbranched polymers are featured with triple-mode fluorescent patterns and have been applied in quadruple-modal information encryption and storage with enhanced security and density. Collectively, this work not only enriches the structural diversity of the existing triazole-based material library, but also provides new polymeric materials for data and information security application.

关键词： activated internal triyne hyperbranched poly(formyl-1,2,3-triazole)s post-polymerization modification multilevel information security

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Self-healing hyperbranched polytriazoles prepared by metal-free click polymerization of propiolate and azide monomers

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Science China Chemistry 2016年第12期59卷 1554-1560页

作者： Xin Wang Rongrong Hu Zujin Zhao anjun qin Ben Zhong Tang Guangdong Innovative Research Team State Key Laboratory of Luminescent Materials and Devices South China University of Technology Department of Chemistry Hong Kong Branch of National Engineering Research Center for Tissue Restoration & ReconstructionThe Hong Kong University of Science & Technology Clear Water Bay

The last decade has witnessed the quick develop of self-healing materials. As a newborn strategy, the alternative of irreversible covalent bond formation is, however, to be further developed. In this paper, self-healing hyperbranched poly(aroxycarbonyltriazole)based on such mechanism were prepared by our developed metal-free click polymerization of simplified dipropiolate and triazide. Thanks to their excellent processability and film-forming ability, high quality homogeneous films free from defects were obtained by casting. The cut films could be healed by stacking or pressing the halves together at room temperature and elevated temperature. Thus, this design concept for self-healing materials should be generally applicable to other hyperbranched polymers with reactive groups on their peripheries.

关键词： self-healing hyperbranched polytriazole metal-free click polymerization film

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