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Aggregate 2023年第2期4卷 102-122页

作者： Wu-Jie Guo Tuokai Peng Wenping Zhu Shixiang Ma Guang Wang Ying Li Bin Liu Hui-Qing Peng Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical TechnologyBeijingChina Innovation research Center for AIE Pharmaceutical Biology Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical PharmacologyThe NMPA and State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences and The Fifth Affiliated HospitalGuangzhou Medical UniversityGuangzhouChina Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of TechnologyGuangzhouChina

Supramolecular architectures are constructed by the self-assembly of small building blocks via the use of metal-ligand coordination,π–πstacking interactions,hydrogen bonding,host-guest interactions,and other noncovalent driving forces,which confer unique dynamic reversibility and stimulus responsiveness to the supramolecular materials and also lead to the demand of expensive and complex equipment for the characterization of supramolecular assembly ***,the self-assembly processes bring the monomeric chromophores together,offering possibilities to establish ties between the supramolecular assembly and aggregation-induced emission(AIE)*** to conventional luminescent molecules,AIE luminogens(AIEgens)exhibit significant fluorescence enhancement upon the restriction of molecular motions,thus displaying the advantages of signal amplification and low background *** the above,the real-time,sensitive,and in situ visualization of the formation of self-assemblies and their stimuli responsiveness based on AIE becomes ***,we review recent works that encompass the visualization of supramolecular assembly-related behaviors by means of AIE characteristics of *** organization of this review will be by different types of supramolecular architectures,including metallacycles/cages,micelles/vesicles,supramolecular polymers,and supramolecular *** overview of future opportunities and challenges for the real-time monitoring of supramolecular assembly by AIE is also provided.

关键词： aggregation-induced emission metallacycles/cages micelles/vesicles supramolecular gels supramolecular polymers visualization

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Assembling aggregation-induced emission with natural DNA to maximize donor/acceptor ratio for efficient light-harvesting antennae

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Aggregate 2023年第4期4卷 239-245页

作者： Xiaofang Tang Yaping Zhu Weijiang Guan Chao Lu Green Catalysis Center and College of ChemistryZhengzhou UniversityZhengzhouChina State Key Laboratory of Chemical Resource Engineering and College of ChemistryBeijing University of Chemical TechnologyBeijingChina

Arranging dense donors around a single acceptor for the assembly of effi-cient light-harvesting antennas is a long-standing challenge due to the intractable aggregation-caused quenching of dense ***,we designed a cationic aggregation-induced emission(AIE)amphiphile to self-assemble with natural DNA *** an efficient donor,the as-prepared cationic AIE amphiphile could be densely attached to the phosphate groups of natural DNA duplexes by using the smaller cationic *** long alkyl chain between the cationic trimethylammonium and the AIEfluorophore allowed for avoiding the insuffi-cient binding caused by the steric hindrance of the AIEfluorophore,resulting in a remarkably high donor/acceptor ratio comparable to that of the widely developed custom DNA *** proposed self-assembly strategy provided novelflex-ible avenues for the assembling offinely controlled and efficient light-harvesting systems into natural DNA with little synthetic modifications and low cost.

关键词： aggregation-induced emission DNA energy transfer light-harvesting supramolecular assembly

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Fused-ring induced end-on orientation in conjugated molecular dyads toward efficient single-component organic solar cells

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Aggregate 2023年第2期4卷 291-299页

作者： Dongdong Xia Shengxi Zhou Wen Liang Tan Safakath Karuthedath Chengyi Xiao Chaowei Zhao Frédéric Laquai Christopher R.McNeill Weiwei Li Institute of Applied Chemistry Jiangxi Academy of SciencesNanchangChina Beijing Advanced Innovation Center for Soft Matter Science and Engineering&State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijingChina Department of Materials Science and Engineering Monash UniversityClaytonAustralia KAUST Solar Center(KSC) Physical Sciences and Engineering Division(PSE)Material Science and Engineering Program(MSE)King Abdullah University of Science and Technology(KAUST)ThuwalSaudi Arabia

The molecular orientations of conjugated materials on the substrate mainly include edge-on,face-on,and ***-on and face-on orientations have been widely observed,while end-on orientation has been rarely *** in organic solar cells(OSCs)charge transport is along the vertical direction,end-on orientation with conjugated backbones perpendicular to the substrate is recognized as the ideal microstructure for *** this work,we for the first time obtained the preferential end-on orientation in a conjugated molecular dyad that contains a conjugated backbone as donor and perylene bisimide side units as *** was realized by introducing a fused-ring structure to replace linear terthiophenes with conjugated backbones,yielding F-MDPBI and L-MDPBI ***,a shifting trend of the molecular orientation from dominating edge-on in L-MDPBI to preferential end-on in F-MDPBI was *** a consequence,vertical charge carrier mobilities in F-MDPBI are one order of magnitude higher than those with preferential edge-on orientation,so single-component OSCs based on this molecular dyad as a single photoactive layer provided a power conversion efficiency of 4.89% compared to 1.70% based on L-MDPBI with preferential edge-on orientation.

关键词： conjugated molecular dyads crystallinity edge-on end-on single-component organic solar cells

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Advanced strategies of scaffolds design for bone regeneration

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BMEMat(BioMedical Engineering Materials) 2023年第4期1卷 29-49页

作者： Jian Song Longfei Li Lei Fang Enshuo Zhang Yu Zhang Zhuxuan Zhang Pranav Vangari Yaqin Huang Feng Tian Yu Zhao Wei Chen Jiajia Xue Beijing Laboratory of Biomedical Materials State Key Laboratory of Organic-Inorganic CompositesBeijing University of Chemical TechnologyBeijingChina Department of Physics University of Texas at ArlingtonArlingtonTexasUSA Department of Orthopaedics Peking Union Medical College HospitalChinese Academy of Medical SciencesBeijingChina

Bone defects are encountered substantially in clinical practice,and bionic scaffolds represent a promising solution for repairing bone ***,it is difficult to fabricate scaffolds with bionic structures and reconstruct the microenvironment to fulfill the satisfying repair *** this review article,we first discuss various strategies for the design and construction of bionic scaffolds to promote bone defect repair,especially including the structural construction of the scaffold and the integration of bioactive substances together with the application of external *** then discuss the roles of artificial intelligence and medical imaging in aiding clinical ***,we point out the challenges and future outlooks in developing multifunctional bone repair scaffolds,aiming to provide insights for improving bone regeneration efficacy and accelerating clinical translation.

关键词： bionic scaffold bone regeneration bone repair external stimuli medical imaging tissue engineering

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