Article
Chemistry, Multidisciplinary
Zhiwei Zhang, Chujing Yang, Yankai Dai, Xinying Zhang, Jingqi Chen, Lingyan Feng
Summary: An innovative strategy has been developed to achieve circularly polarized luminescence of carbon dots (CDs) by forming self-assembled helical nanostructures in different bi-solvent systems, without the need for any additional element of chirality.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Han Wu, Xin He, Biao Yang, Cui-Cui Li, Liang Zhao
Summary: The study involved constructing spirocyclic Ag-9 clusters by vertex-sharing of in-situ-generated heteroaryl diide-centered metal rings, demonstrating versatile photoluminescent and chiroptical behavior. Under different aggregation conditions, assembly led to cluster-based phosphorous luminescence and micrometer-long helical nanofibers. Exciton couplings of chelating ligands at molecular and microscopic levels in the assembled film of cluster enantiomers resulted in circularly polarized luminescence with a high anisotropy factor (0.16).
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Multidisciplinary
Jing He, Yanqing Fan, Zhe Lian, Shengzhu Guo, Ying Wang, Hua Jiang
Summary: This study presents the synthesis of double helices based on planar chiral [2.2]paracyclophane and tetraphenylethylene, which demonstrate enhanced circularly polarized luminescence induced by self-assembly, with tunable dissymmetry factors ranging from 10-4 to 10-2 and a high quantum yield of up to 51% in the PMMA films.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiqian Wang, Luyang Zhao, Chiming Wang, Xuenan Feng, Qing Ma, Gengxiang Yang, Tianyu Wang, Xuehai Yan, Jianzhuang Jiang
Summary: The article reports on the regulation of common dipeptide assemblies into unprecedented helical nanotubes exhibiting intense circularly polarized luminescence by simply doping a small number of phthalocyanine molecules. Despite varying the Fmoc-FF/Pc molar ratios over a wide range, the nanotube structures remain unchanged. The results suggest the potential for fine-tuning helix and supramolecular nanotubes with CPL properties using a small number of cofactors.
Article
Chemistry, Multidisciplinary
Qing Li, Jiaxing Zhang, Yuefei Wang, Gong Zhang, Wei Qi, Shengping You, Rongxin Su, Zhimin He
Summary: This study reports the self-assembly of peptides into hierarchical helical arrays capable of emitting circularly polarized luminescence (CPL), with the handedness of the CPL signals controlled by changing the amino acid sequence. The peptide HHAs provide hydrophobic pockets for accommodating fluorescent molecules with helical arrangement, leading to the generation of CPL signals with high g(lum) values. This work paves the way for constructing highly ordered chiral materials with potential applications in the chiroptical field.
Review
Chemistry, Multidisciplinary
Zhong-Liang Gong, Xuefeng Zhu, Zhonghao Zhou, Si-Wei Zhang, Dong Yang, Biao Zhao, Yi-Pin Zhang, Jianping Deng, Yixiang Cheng, You-Xuan Zheng, Shuang-Quan Zang, Hua Kuang, Pengfei Duan, Mingjian Yuan, Chuan-Feng Chen, Yong Sheng Zhao, Yu-Wu Zhong, Ben Zhong Tang, Minghua Liu
Summary: Research in circularly polarized luminescence has recently gained widespread interest, focusing on the development of chiral materials with high luminescence efficiency and dissymmetry factors, as well as their applications in optoelectronic devices. This review summarizes the latest advancements in this field, including the development of various chiral emissive materials and the utilization of these materials in organic light-emitting devices and other applications.
SCIENCE CHINA-CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Gui-Fei Huo, Qian Tu, Yi-Xiong Hu, Bo Jiang, Qi-Feng Zhou, Yanfei Niu, Xiaoli Zhao, Hong-Ming Ding, Jin Wen, Guang-Qiang Yin, Xueliang Shi, Lin Xu
Summary: This study presents a new approach for preparing supramolecular metallacycles with amplified CPL using hierarchical self-assembly, leading to the first example of highly effective CPL-active materials based on Pt center dot center dot center dot Pt interactions.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhong-Liang Gong, Yu-Wu Zhong
Summary: This research demonstrates the preparation of polymorphic helical architectures with highly efficient CPL and inverted handedness by controlling the assembly pathway of chiral emitters.
SCIENCE CHINA-CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Yi Ru, Baowei Zhang, Xue Yong, Laizhi Sui, Jingkun Yu, Haoqiang Song, Siyu Lu
Summary: Chiral carbon dots (Ch-CDs) were used to induce full-color circularly polarized luminescence (CPL) in CsPbX3 nanocrystals (NCs). Ch-CDs-CsPbBr3 NCs were successfully synthesized through ligand-assisted coprecipitation at room temperature. The combination of perovskites and Ch-CDs paves the way for the design of new chiral perovskite materials for multifunctional applications.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yue Wu, Chenxu Yan, Xin-Shun Li, Li Hong You, Zhen-Qiang Yu, Xiaofeng Wu, Zhigang Zheng, Guofeng Liu, Zhiqian Guo, He Tian, Wei-Hong Zhu
Summary: A unique CPL transmission method using circularly polarized fluorescence resonance energy transfer (C-FRET) has been discovered, showing significant potential for various applications. This mode provides a novel strategy concept for high-level information processing.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Polymer Science
Mengdie Zhou, Jiafan Zhang, Yueyue Chen, Zhong Chen, Yongjie Yuan, Yongyang Gong, Hailiang Zhang
Summary: In this study, chiral liquid crystals were used to obtain circularly polarized luminescence (CPL) materials with high dissymmetry factor (glum) values. PM6Chol-coated film exhibited efficient CPL due to the helical arrangement of cholesterol, while PM6Chol thermal-treated film showed no CPL signal but demonstrated room-temperature phosphorescence.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Hui Li, Jie Gu, Zijie Wang, Juan Wang, Fei He, Ping Li, Ye Tao, Huanhuan Li, Gaozhan Xie, Wei Huang, Chao Zheng, Runfeng Chen
Summary: The authors developed a strategy to achieve multicolor circularly polarized organic afterglow (CPOA) by inserting a chirality center into a non-conjugated organic cluster. This approach enabled highly efficient and significantly tuned CPOA emissions from blue to yellowish-green with dissymmetry factor over 2.3 x 10(-3) and lifetime up to 587 ms under different excitation wavelengths, showcasing the potential for diverse applications in CPL and RTP materials.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Qingxiang Li, Xuemin Lu, Zhiguo Lv, Bangshang Zhu, Qinghua Lu
Summary: In this study, a highly efficient approach for constructing macroscopic crystal dendrites with hierarchical chirality in a block copolymer film was developed. The chiral dendrites exhibited strong circularly polarized luminescence emission and the emission bands could be fine-tuned by contriving the emissive bands of fluorescent molecules. The chiral signals could be wiped when the fluorescent group photodimerized under UV irradiation.
Article
Chemistry, Applied
Ziqing Zhou, Fengyun Shi, Hongkun Li, Yonggang Yang, Yongfang Li
Summary: A pair of valine-containing tetraphenylethene-based pyridinium salts were designed and synthesized. They exhibit aggregation-induced emission and circular dichroism features in the aggregated state, as well as circular polarization luminescence properties. Furthermore, they can be used as templates for fabricating twisted hybrid silica nanofibers.
Article
Chemistry, Physical
Shibing Chen, Liangbin Lin, Sining Zheng, Hongyu Guo, Fafu Yang
Summary: This study provides a new strategy for tuning the inverted CPL signal of molecular systems by achieving the sign inversion of CPL in assemblies in both smectic mesophase and suspension.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Chemistry, Multidisciplinary
Yanhong Duo, Guanghong Luo, Wentao Zhang, Renzhi Wang, Gary Guishan Xiao, Zihuang Li, Xianming Li, Meili Chen, Juyoung Yoon, Ben Zhong Tang
Summary: Noncancerous diseases are a significant cause of mortality worldwide and pose many unanswered questions and challenges in clinical research. The evolution of bio-nanomedicine, particularly aggregation-induced emission luminogens (AIEgens), has led to advancements in biosensing, diagnosis, bioimaging, and therapeutics for these diseases. AIEgens exhibit strong emission after aggregation, overcoming the quenching effect seen in traditional methods, and have unique properties that make them an excellent multimodal theranostic platform. This review summarizes the progress and potential applications of AIEgen-based nanoplatforms in detecting, diagnosing, and treating noncancerous diseases, hoping to stimulate further interest in this field.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Medicinal
Guoyu Jiang, Jianguo Wang, Ben Zhong Tang
Summary: Anion-pi interactions have been gaining attention since 2017 as an important type of non-covalent interactions that prevent pi-pi interaction and quenching of luminescence. Anion-pi type AIEgens obtained have good water solubility, excellent photostability, and reactive oxygen species generation ability, making them suitable for applications in wash-free bioimaging, subcellular organelle tracking, photodynamic therapy, and antibacterial therapy. Furthermore, anion-pi type AIEgens have also been used for the development of room temperature phosphorescence by utilizing heavy-atom participated anion-pi interactions. This concept article provides a brief summary of the design strategy, photophysical properties, and applications of anion-pi type AIEgens.
Article
Chemistry, Multidisciplinary
Shengde Xiong, Yu Xiong, Deliang Wang, Yiwen Pan, Keyao Chen, Zheng Zhao, Dong Wang, Ben Zhong Tang
Summary: A facile strategy is presented to achieve polymer-based materials with ultralong room-temperature phosphorescence (RTP), multicolor afterglow, and reversible response to UV irradiation. Pyridine-substituted triphenylamine derivatives are embedded into the polymer matrix of poly(vinyl alcohol) (PVA) and poly(methyl methacrylate) (PMMA). The doped PVA system exhibits excellent RTP properties with an ultralong lifetime of 798.4 ms and a high quantum yield of 15.2%, while the doped PMMA system shows reversible photoactivated ultralong RTP properties.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jie Cui, Fei Zhang, Dingyuan Yan, Ting Han, Lei Wang, Dong Wang, Ben Zhong Tang
Summary: This study successfully developed a versatile molecule DHTDP with aggregation-induced emission, which can simultaneously exhibit second near-infrared (NIR-II) fluorescence emission and efficient photothermal conversion. By camouflaging DHTDP nanoparticles with cancer cell membrane, the resultant biomimetic nanoparticles not only have facilitated delivery efficiency and homologous targeting capability, but also provide precise imaging guidance through NIR-II fluorescence imaging, photoacoustic imaging, and photothermal imaging. This study presents a new approach to explore superior phototheranostics for practical cancer theranostics using biomimetic multimodal phototheranostics loaded by homogeneity-targeting cell membrane.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ziteng Zhang, Jianyu Zhang, Zuping Xiong, Bo Chu, Chengjian Zhang, Jing Zhi Sun, Haoke Zhang, Xing-Hong Zhang, Ben Zhong Tang
Summary: This work presents the design and synthesis of six phenolic resins with clusteroluminescence (CL) property. By increasing the number of through-space interactions (TSIs) units and introducing electron-donating/-withdrawing groups, these non-conjugated polymers achieve near-infrared (NIR) emission with high absolute quantum yield. Through experiments and theoretical analysis, the crucial roles of through-space locally excited state and through-space charge transfer state in achieving CL from non-conjugated polymers are revealed.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Multidisciplinary Sciences
Changhuo Xu, Hanchen Shen, Tzu-Ming Liu, Ryan T. K. Kwok, Jacky W. Y. Lam, Ben Zhong Tang
Summary: In the late 19th century, scientists discovered the phenomena of aggregation-caused quenching and aggregation-induced emission (AIE) while studying the photophysical differences between chromophores in solution and aggregate states. The concept of AIE has led to the innovation of luminogenic materials with high emission in the aggregate state based on the restriction of intramolecular motion. This review explores recent advances in molecular engineering techniques for highly emissive AIE dots, such as nanoscale crystallization and matrix-assisted rigidification, with the goal of improving their brightness and inspiring the rational design of functional aggregates.
Letter
Materials Science, Multidisciplinary
Jun-Cheng Yang, Zhiyuan Fu, Huili Ma, Tao Wang, Kai Wang, Lin Wu, Ben Zhong Tang, Hai-Tao Feng, Pu Chen, Qiuying Li
Summary: This study focuses on the stimuli-responsive luminescence of a novel emitter, DCzPy, which emits bluegreen fluorescence in crystal form. Upon gentle grinding, the fluorescence intensity of DCzPy is significantly enhanced with a hypsochromic shift. The emission wavelength returns to its original value after heavy grinding. Moreover, DCzPy exhibits a large bathochromic-shifted and weakened fluorescence under isotropic compression. In film form, the thermoresponsive behavior of DCzPy changes the emission from green to blue. Based on this thermo-induced fluorescence switching, a two-dimensional code for information anticounterfeiting is successfully fabricated.
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Dan Li, Zhenjiang Liu, Manman Fang, Jie Yang, Ben Zhong Tang, Zhen Li
Summary: In this study, an ultralong room-temperature phosphorescence (RTP) system in water was achieved through assembly based on a β-cyclodextrin host and p-biphenylboronic acid guest. The long-lived phosphorescence depends on the host-guest inclusion as well as intermolecular hydrogen bonding interactions, suppressing nonradiative relaxation and avoiding quenching effectively. Additionally, the addition of fluorescent dyes allows for tuning the afterglow color through radiative energy transfer of reabsorption.
Article
Chemistry, Multidisciplinary
Michelle M. S. Lee, Eric Y. Y. Yu, Dingyuan Yan, Joe H. C. Chau, Qian Wu, Jacky W. Y. Lam, Dan Ding, Ryan T. K. Kwok, Dong Wang, Ben Zhong Tang
Summary: The aggregation-induced emission photosensitizer (AIEPS) has emerged as a promising option for bacterial theranostics. With the use of cationic AIEPS, it has been possible to discriminate and eliminate bacteria effectively. This study investigates the relationship between hydrophobicity variation of cationic amphiphilic AIEPS and bacterial targeting outcomes, providing insights into the design strategies for better development in bacterial theranostics.
Article
Chemistry, Multidisciplinary
Hao Fang, Yaofeng Zhou, Yanbing Ma, Qi Chen, Weipeng Tong, Shengnan Zhan, Qian Guo, Yonghua Xiong, Ben Zhong Tang, Xiaolin Huang
Summary: This study presents a highly sensitive quantitative detection strategy for low-abundance target analytes by utilizing the synergistic combination of M13 phage-mediated leverage effect and GISG-amplified light scattering signal modulation. The strategy achieves ultrasensitive and rapid quantification of target analytes and displays about 4 orders of magnitude enhancement in sensitivity compared to traditional methods.
Article
Chemistry, Multidisciplinary
Yue Tan, Di Huang, Caiming Luo, Jiahao Tang, Ryan T. K. Kwok, Jacky W. Y. Lam, Jianwei Sun, Jinbin Liu, Ben Zhong Tang
Summary: In this study, clearable mercaptosuccinic acid (MSA) coated Au-Ag bimetallic nanoparticles (NPs) were designed to enhance reactive oxygen species (ROS) production. The strong COO-Ag coordination bonds between MSA and Ag atoms on the NPs restricted intrananoparticle motions, leading to enhanced ROS generation. The bimetallic NPs also exhibited pH-responsive self-assembly capability, further boosting ROS production and showing high tumor targeting efficiency and effective cancer cell destruction.
Article
Materials Science, Multidisciplinary
Yi Qin, Xue Li, Shuai Lu, Miaomiao Kang, Zhijun Zhang, Yixiong Gui, Xiaopeng Li, Dong Wang, Ben Zhong Tang
Summary: We developed a general and straightforward protocol to formulate supramolecular cages with an aggregation-induced emission (AIE) tendency using donor-acceptor-donor (D-A-D) adducts as building blocks. A series of box-shaped cages MA-MG with adjustable fluorescence from red to the second near-infrared (NIR-II) region were successfully prepared. In particular, the emission maximum of MG was located at 981 nm, behaving like the rare NIR-II emissive supramolecular cages thus far, and the cage-loaded nanoparticles MGNPs featured a high absolute quantum yield in the NIR-II region, enabling them to perform well in blood vessel imaging.
ACS MATERIALS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Xing Wu, Xiaoluo Peng, Letian Chen, Zujin Zhao, Ben Zhong Tang
Summary: A novel through-space conjugated molecule (2,3-PICz-XT) with dual delayed fluorescence and room-temperature phosphorescence is developed, which exhibits short phosphorescence lifetimes and high photoluminescence quantum yields. 2,3-PICz-XT functions as an efficient emitter and sensitizer in OLEDs, achieving high external quantum efficiencies and improved EL performances.
ACS MATERIALS LETTERS
(2023)
Review
Chemistry, Physical
Peiying Liu, Danxia Li, Miaomiao Kang, Yinzhen Pan, Ziyao Wen, Zhijun Zhang, Dong Wang, Ben Zhong Tang
Summary: The continuous threat of antibiotic-resistant bacterial biofilms due to the complex microenvironment has posed a challenge to public health. The exploration of high-performance antibiofilm systems fueled by the urgent demand for effective biofilm combating has drawn attention to aggregation-induced emission luminogens (AIEgens). This review summarizes the current progress of AIEgens in bacterial biofilm imaging and antibiofilm theranostics, highlighting their potential in fluorescence imaging, enzyme-responsive biofilm imaging, and eradication of preexisting biofilms.
Article
Chemistry, Multidisciplinary
Shinsuke Segawa, Jiajie Wu, Ryan T. K. Kwok, Terence T. W. Wong, Xuewen He, Ben Zhong Tang
Summary: This study presents a simple, fast, and convenient strategy for probe preparation using co-aggregation of hydrophobic molecules. The co-aggregation of tetrazine molecules and fluorophores enables the on-demand selection of fluorophore-functional unit combinations and bioorthogonal fluorogenicity. The study also showcases the potential of this method for time-gated fluorescence bioimaging and multi-organelle imaging.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)