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Zhou D, Zhang G, Li J, Zhuang Z, Shen P, Fu X, Wang L, Qian J, Qin A, Tang BZ. Near-Infrared II Agent with Excellent Overall Performance for Imaging-Guided Photothermal Thrombolysis. ACS NANO 2024. [PMID: 39190833 DOI: 10.1021/acsnano.4c06965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
Near-infrared II (NIR-II) imaging and photothermal therapy hold tremendous potential in precision diagnosis and treatment within biological organisms. However, a significant challenge is the shortage of NIR-II fluorescent probes with both high photothermal conversion coefficient (PCE) and fluorescence quantum yield (ΦF). Herein, we address this issue by integrating a large conjugated electron-withdrawing core, multiple rotors, and multiple alkyl chains into a molecule to successfully generate a NIR-II agent 4THTPB with excellent PCE (87.6%) and high ΦF (3.2%). 4THTPB shows a maximum emission peak at 1058 nm, and the emission tail could extend to as long as 1700 nm. These characteristics make its nanoparticles (NPs) perform well in NIR-II high-resolution angiography, thereby allowing for precise diagnosis of thrombus through NIR-II imaging and enabling efficient photothermal thrombolysis. This work not only furnishes a NIR-II agent with excellent overall performance but also provides valuable guidance for the design of high-performance NIR-II agents.
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Affiliation(s)
- Daming Zhou
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Guiquan Zhang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Jiayi Li
- State Key Laboratory of Modern Optical Instrumentations, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Centre for Optical and Electromagnetic Research, Zhejiang University, Hangzhou 310058, China
| | - Zeyan Zhuang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Pingchuan Shen
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Xinyao Fu
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Lirong Wang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Jun Qian
- State Key Laboratory of Modern Optical Instrumentations, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Centre for Optical and Electromagnetic Research, Zhejiang University, Hangzhou 310058, China
| | - Anjun Qin
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Ben Zhong Tang
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Guangdong 518172, China
- Hong Kong Branch of the Chinese National Engineering Research Centre for Tissue Restoration and Reconstruction, The Hong Kong University of Science & Technology, Kowloon, Hong Kong 999077, China
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2
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Zhang X, Ma X, Zhang B, Yang D, Bai R, Gao Y, Sun H, Tang Y, Shi L. Design and Screening of Fluorescent Probes Based upon Hemicyanine Dyes for Monitoring Mitochondrial Viscosity in Living Cells. J Phys Chem B 2024; 128:3910-3918. [PMID: 38607690 DOI: 10.1021/acs.jpcb.4c00161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
Viscosity, at the subcellular level, plays a crucial role as a physicochemical factor affecting microenvironment homeostasis. Abnormal changes in mitochondrial viscosity often lead to various diseases in the organism. Based on the twisted intramolecular charge transfer mechanism, four hemicyanine dye fluorescent probes (HT-SA, HT-SA-S, HT-Bzh, and HT-NA) were designed and synthesized for viscosity response. The single bond between the nitrogen-containing heterocycle and the carbon-carbon double in the structure of the probe bond served as the viscosity response site. Finally, the probe HT-Bzh was screened as the optimal mitochondrial viscosity probe according to its responsiveness, targeting, and interference resistance. The fluorescence intensity of the probe HT-Bzh increased 22-fold when the viscosity was increased from 13.75 to 811.2 cP. In summary, all four viscosity probes we have developed can be used in different applications depending on the external environment, providing a valuable reference for the design of potential tools to address viscosity monitoring in biological systems.
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Affiliation(s)
- Xiufeng Zhang
- Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China
| | - Xiaoying Ma
- Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China
| | - Buyue Zhang
- Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China
| | - Dawei Yang
- National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Ruiyang Bai
- Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China
| | - Yuexing Gao
- Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China
| | - Hongxia Sun
- National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yalin Tang
- National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Lei Shi
- Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China
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3
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Bandyopadhyay A, Hazra R, Roy D, Bhattacharya A. HSA over BSA: Selective detection of Human Serum Albumin via a naphtho [2,1-b] furan-based system. Chem Asian J 2024; 19:e202301055. [PMID: 38192093 DOI: 10.1002/asia.202301055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/29/2023] [Accepted: 01/08/2024] [Indexed: 01/10/2024]
Abstract
Human serum albumin (HSA) is an important biomarker that can be used for the early diagnosis of many diseases. In this work, a TICT probe bearing fused naphtho-furan scaffold (NPNF) was developed and employed in the selective turn-on sensing of HSA. The probe's selectivity towards HSA was observed using steady-state fluorescence experiments, with limit of quantitation in micromolar levels. NPNF's capability to exclusively detect HSA over BSA was further studied/rationalized using anisotropy and time-resolved studies. Molecular docking was used to shed light on the location of NPNF in the subdomain IB of HSA. The practical application of the probe was also demonstrated by the detection of HSA in urine and the HSA-assisted detection of cerium.
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Affiliation(s)
- Anamika Bandyopadhyay
- Department of Chemistry, Birla Institute of Technology and Science-Pilani (Hyderabad Campus), Hyderabad, 500078, India
| | - Rituparna Hazra
- Department of Chemistry, Birla Institute of Technology and Science-Pilani (Hyderabad Campus), Hyderabad, 500078, India
| | - Durba Roy
- Department of Chemistry, Birla Institute of Technology and Science-Pilani (Hyderabad Campus), Hyderabad, 500078, India
| | - Anupam Bhattacharya
- Department of Chemistry, Birla Institute of Technology and Science-Pilani (Hyderabad Campus), Hyderabad, 500078, India
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4
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Beghennou A, Rondot O, Corcé V, Botuha C. 1 H-1,2,3-triazolyl-1,6-naphthyridin-7(6 H)-ones as Potential Fluorescent Nucleoside Analogues: Synthesis and Optical Properties. Molecules 2024; 29:687. [PMID: 38338431 PMCID: PMC10856630 DOI: 10.3390/molecules29030687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
In this article, we present the synthesis and the optical properties of three original molecules as potential fluorescent ribonucleoside analogues incorporating a 1,6-naphthyridin-7(6H)-one scaffold as a fluorescent nucleobase and a 1,2,3-triazole as a linkage. The nucleosides were prepared via a Cu alkyne-azide cycloaddition (CuAAC) reaction between a ribofuranosyl azide and a 4-ethynylpyridine partner. Construction of substituted 1,6-naphthyridin-7(6H)-ones was achieved through two additional steps. Optical property studies were investigated on nucleoside analogues. Powerful fluorescence properties have been evidenced with a remarkable change of emissivity depending on the polarity of the solvent, making these molecules suitable as a new class of artificial fluorescent nucleosides for investigating enzyme binding sites as well as probing nucleic acids. In addition, we are convinced that such analogues could be of great interest in the search for new antiviral or antitumoral drugs based on nucleosides.
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Affiliation(s)
| | | | - Vincent Corcé
- Institut Parisien de Chimie Moléculaire, CNRS UMR 9232, Sorbonne Université, F-75252 Paris, France; (A.B.); (O.R.)
| | - Candice Botuha
- Institut Parisien de Chimie Moléculaire, CNRS UMR 9232, Sorbonne Université, F-75252 Paris, France; (A.B.); (O.R.)
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5
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Xu H, Yuan L, Shi Q, Tian Y, Hu F. Ultrabright NIR-II Nanoprobe for Image-Guided Accurate Resection of Tiny Metastatic Lesions. NANO LETTERS 2024; 24:1367-1375. [PMID: 38227970 DOI: 10.1021/acs.nanolett.3c04483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Fluorescence imaging is a vital way to delineate the tumor boundaries. Here, we achieve a NIR-II aggregation-induced emission luminogen (AIEgen) with a fluorescence quantum yield (QY) of 12.6% in water through straightforward alkyl side chain modification. After loading of NIR-II AIEgen into polystyrene (PS) nanospheres, the thermal deactivation pathway is extremely limited, thereby concentrating absorption excitation on fluorescence emission. The fluorescence intensity is further enhanced by 5.4 times, the QY increases to 21.1%, and the NIR-II imaging signal is accordingly enhanced by 8.7 times, surpassing conventional DSPE-PEG carriers. The NIR-II@PS nanoprobe showcases superior resolution and tissue penetration depth compared to indocyanine green (ICG) and short-range near-infrared AIEgens. In vivo investigations underscore its tumor-to-normal tissue ratio (3.9) at 24 h post intravenous injection, enabling complete resection of ≤1 mm metastases under NIR-II bioimaging guidance. Additionally, the PS carrier-nanoparticles exhibit low toxicity in vivo, laying a promising foundation for the future design of medical nanomaterials.
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Affiliation(s)
- Huihui Xu
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Lishan Yuan
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Qiankun Shi
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Ye Tian
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Fang Hu
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
- Division of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou 510282 China
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6
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Chen X, He Z, Huang X, Sun Z, Cao H, Wu L, Zhang S, Hammock BD, Liu X. Illuminating the path: aggregation-induced emission for food contaminants detection. Crit Rev Food Sci Nutr 2023:1-28. [PMID: 37983139 DOI: 10.1080/10408398.2023.2282677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Food safety is a global concern that deeply affects human health. To ensure the profitability of the food industry and consumer safety, there is an urgent need to develop rapid, sensitive, accurate, and cost-effective detection methods for food contaminants. Recently, the Aggregation-Induced Emission (AIE) has been successfully used to detect food contaminants. AIEgens, fluorescent dyes that cause AIE, have several valuable properties including high quantum yields, photostability, and large Stokes shifts. This review provides a detailed introduction to the principles and advantages of AIE-triggered detection, followed by a focus on the past five years' applications of AIE in detecting various food contaminants including pesticides, veterinary drugs, mycotoxins, food additives, ions, pathogens, and biogenic amines. Each detection principle and component is comprehensively covered and explained. Moreover, the similarities and differences among different types of food contaminants are summarized, aiming to inspire future researchers. Finally, this review concludes with a discussion of the prospects for incorporating AIEgens more effectively into the detection of food contaminants.
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Affiliation(s)
- Xincheng Chen
- School of Food Science and Engineering, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou, China
| | - Zhenyun He
- School of Food Science and Engineering, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou, China
| | - Xiaolin Huang
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Nanchang University, Nanchang, China
| | - Zhichang Sun
- School of Food Science and Engineering, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou, China
| | - Hongmei Cao
- School of Food Science and Engineering, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou, China
| | - Long Wu
- School of Food Science and Engineering, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou, China
| | - Sihang Zhang
- School of Food Science and Engineering, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou, China
| | - Bruce D Hammock
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, Davis, California, USA
| | - Xing Liu
- School of Food Science and Engineering, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou, China
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7
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Nikaido M, Mizuse K, Ohshima Y. Torsional Wave-Packet Dynamics in 2-Fluorobiphenyl Investigated by State-Selective Ionization-Detected Impulsive Stimulated Raman Spectroscopy. J Phys Chem A 2023. [PMID: 37257002 DOI: 10.1021/acs.jpca.3c02138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report the creation and observation of vibrational wave packets pertinent to torsional motion in a biphenyl derivative in its electronic ground-state manifold. Adiabatically cooled molecular samples of 2-fluorobiphenyl were irradiated by intense nonresonant ultrashort laser pulses to drive impulsive stimulated Raman excitation of torsional motion. Spectral change due to the nonadiabatic vibrational excitation is probed in a state-selective manner using resonance-enhanced two-photon ionization through the S1 ← S0 electronic transition. The coherent nature of the excitation was exemplified by adopting irradiation with a pair of pump pulses: observed signals for excited torsional levels exhibit oscillatory variations against the mutual delay between the pump pulses due to wave-packet interference. By taking the Fourier transform of the time course of the signals, energy intervals among torsional levels with v = 0-3 were determined and utilized to calibrate a density functional theory (DFT)-calculated torsional potential-energy function. Time variation of populations in the excited torsional levels was assessed experimentally by measuring integrated intensities of the corresponding transitions while scanning the delay. Early time enhancement of the population (up to ∼2 ps) and gradual degradation of coherence (within ∼20 ps) appears. To explain the observed distinctive features, we developed a four-dimensional (4D) dynamical calculation in which one-dimensional (1D) quantum-mechanical propagation of the torsional motion was followed by solving the time-dependent Schrödinger equation, whereas three-dimensional (3D) molecular rotation was tracked by classical trajectory calculations. This hybrid approach enabled us to reproduce experimental results at a reasonable computational cost and provided a deeper insight into rotational effects on vibrational wave-packet dynamics.
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Affiliation(s)
- Makoto Nikaido
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Meguro 152-8550, Japan
| | - Kenta Mizuse
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Meguro 152-8550, Japan
- Department of Chemistry, School of Science, Kitasato University, 1-15-1 Kitazato, Minami, Sagamihara, Kanagawa 252-0373, Japan
| | - Yasuhiro Ohshima
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Meguro 152-8550, Japan
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8
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Brotherton AR, Shibu A, Meadows JC, Sayresmith NA, Brown CE, Ledezma AM, Schmedake TA, Walter MG. Leveraging Coupled Solvatofluorochromism and Fluorescence Quenching in Nitrophenyl-Containing Thiazolothiazoles for Efficient Organic Vapor Sensing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2205729. [PMID: 37186373 DOI: 10.1002/advs.202205729] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/26/2023] [Indexed: 05/17/2023]
Abstract
Solvatofluorochromic molecules provide strikingly high fluorescent outputs to monitor a wide range of biological, environmental, or materials-related sensing processes. Here, thiazolo[5,4-d]thiazole (TTz) fluorophores equipped with simple alkylamino and nitrophenyl substituents for solid-state, high-performance chemo-responsive sensing applications are reported. Nitroaromatic substituents are known to strongly quench dye fluorescence, however, the TTz core subtly modulates intramolecular charge transfer (ICT) enabling strong, locally excited-state fluorescence in non-polar conditions. In polar media, a planar ICT excited-state shows near complete quenching, enabling a twisted excited-state emission to be observed. These unique fluorescent properties (spectral shifts of 0.13 - 0.87 eV and large transition dipole moments Δµ = 20.4 - 21.3 D) are leveraged to develop highly sought-after chemo-responsive, organic vapor optical sensors. The sensors are developed by embedding the TTz fluorophores within a poly(styrene-isoprene-styrene) block copolymer to form fluorescent dye/polymer composites (ΦF = 70 - 97%). The composites respond reversibly to a comprehensive list of organic solvents and show low vapor concentration sensing (e.g., 0.04% solvent saturation vapor pressure of THF - 66 ppm). The composite films can distinguish between solvent vapors with near complete fluorescent quenching observed when exposed to their saturated solvent vapor pressures, making this an extremely promising material for optical chemo-responsive sensing.
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Affiliation(s)
- Andrew R Brotherton
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC, 28223, USA
| | - Abhishek Shibu
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC, 28223, USA
| | - Jared C Meadows
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC, 28223, USA
| | - Nickolas A Sayresmith
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC, 28223, USA
| | - Chloe E Brown
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC, 28223, USA
| | - Ana Montoya Ledezma
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC, 28223, USA
| | - Thomas A Schmedake
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC, 28223, USA
| | - Michael G Walter
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC, 28223, USA
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9
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Ma X, Shi L, Zhang B, Zhao S, Yuan X, Zhang X. Cy3 Cyanine Dye with Strong Fluorescence Enhancement for AGRO100 and Its Derivative. J Phys Chem B 2023; 127:1811-1818. [PMID: 36802619 DOI: 10.1021/acs.jpcb.2c08784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Nucleic acids, as important substances for biological inheritance, have attracted extensive attention in the biomedical field. More and more cyanine dyes are emerging as one of the probe tools for nucleic acid detection due to their excellent photophysical properties. Here, we discovered that the insertion of the AGRO100 sequence can specifically disrupt the twisted intramolecular charge transfer (TICT) mechanism of the trimethine cyanine dye (TCy3), resulting in a clear "turn-on" response. Moreover, the fluorescence enhancement of TCy3 combined with the T-rich AGRO100 derivative is more obvious. One explanation for the interaction between dT (deoxythymidine) and positively charged TCy3 may be that its outer layer carries the most negative charge. This study provides a theoretical basis for the use of TCy3 as a DNA probe, which has promising applications in the DNA detection of biological samples. It also provides the basis for the following construction of probes with specific ability for recognition.
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Affiliation(s)
- Xiaoying Ma
- Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China
| | - Lei Shi
- Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China
| | - Buyue Zhang
- Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China
| | - Shuhua Zhao
- Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China
| | - Xinyu Yuan
- Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China
| | - Xiufeng Zhang
- Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China
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10
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Huber A, Dubbert J, Scherz TD, Voskuhl J. Design Concepts for Solution and Solid-State Emitters - A Modern Viewpoint on Classical and Non-Classical Approaches. Chemistry 2023; 29:e202202481. [PMID: 36193996 PMCID: PMC10099667 DOI: 10.1002/chem.202202481] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Indexed: 11/07/2022]
Abstract
For a long time, luminescence phenomena were strictly distinguished between the emission of isolated molecules in dilute solutions or close-packed structures such as in powders or aggregates. This changed with the breakthrough observation of dual-state efficient materials, which led to a rapid boost of publications examining the influence of structural features to achieve balanced emission with disregarded molecular surroundings. Some first general structural design concepts have already been proposed based on reoccurring patterns and pivotal motifs. However, we have found another way to classify these solution and solid-state emitters (SSSEs). Hence, this minireview aims to present an overview of published structural features of SSSEs while shining light on design concepts from a more generalized perspective. Since SSSEs are believed to bridge the gap of hitherto known aggregation-sensitive compound classes, we hope to give future scientists a versatile tool in hand to efficiently design novel luminescent materials.
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Affiliation(s)
- Alexander Huber
- Institute of Organic Chemistry, CENIDE and ZMB, University of Duisburg-Essen, Universitätsstrasse 7, 45117, Essen, Germany
| | - Justin Dubbert
- Institute of Organic Chemistry, CENIDE and ZMB, University of Duisburg-Essen, Universitätsstrasse 7, 45117, Essen, Germany
| | - Tim D Scherz
- Institute of Organic Chemistry, CENIDE and ZMB, University of Duisburg-Essen, Universitätsstrasse 7, 45117, Essen, Germany
| | - Jens Voskuhl
- Institute of Organic Chemistry, CENIDE and ZMB, University of Duisburg-Essen, Universitätsstrasse 7, 45117, Essen, Germany
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11
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Li Y, Tang Y, Hu W, Wang Z, Li X, Lu X, Chen S, Huang W, Fan Q. Incorporation of Robust NIR-II Fluorescence Brightness and Photothermal Performance in a Single Large π-Conjugated Molecule for Phototheranostics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204695. [PMID: 36453572 PMCID: PMC9875648 DOI: 10.1002/advs.202204695] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/25/2022] [Indexed: 05/20/2023]
Abstract
Second near-infrared (NIR-II, 1000-1700 nm) window fluorescence imaging-guided photothermal therapy probes are promising for precise cancer phototheranostics. However, most of the currently reported probes do not demonstrate high NIR-II fluorescent brightness (molar absorption coefficient (ε) × quantum yield (QY)) and photothermal performance (ε × photothermal conversion efficiency (PCE)) in a single molecule. Herein, a versatile strategy to solve this challenge is reported by fabricating a large π-conjugated molecule (BNDI-Me) with a rigid molecular skeleton and flexible side groups. The proposed BNDI-Me nanoprobe boosts the ε and simultaneously optimizes its QY and PCE. Therefore, high NIR-II fluorescent brightness (ε × QY = 2296 m-1 cm-1 ) and strong photothermal performance (ε × PCE = 82 000) are successfully incorporated in a single small molecule, and, to the best of knowledge, either of these two parameters is better than the best currently available fluorescent or photothermal probes. Thus, superior NIR-II imaging effect in vivo and high photothermal tumor inhibition rate (81.2%) at low systemic injection doses are obtained. The work provides further insights into the relationship of photophysical mechanisms and structures, and presents promising molecular design guidelines for the integration of more efficient multiple theranostic functions in a single molecule.
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Affiliation(s)
- Yuanyuan Li
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu Key Laboratory for BiosensorsNanjing University of Posts & TelecommunicationsNanjing210023China
| | - Yufu Tang
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu Key Laboratory for BiosensorsNanjing University of Posts & TelecommunicationsNanjing210023China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Nanjing Tech University30 South Puzhu RoadNanjing211800P. R. China
| | - Wenbo Hu
- Shaanxi Institute of Flexible Electronics (SIFE)Northwestern Polytechnical University (NPU)Xi'an710072China
| | - Zhen Wang
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu Key Laboratory for BiosensorsNanjing University of Posts & TelecommunicationsNanjing210023China
| | - Xi Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Nanjing Tech University30 South Puzhu RoadNanjing211800P. R. China
| | - Xiaomei Lu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Nanjing Tech University30 South Puzhu RoadNanjing211800P. R. China
| | - Shufen Chen
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu Key Laboratory for BiosensorsNanjing University of Posts & TelecommunicationsNanjing210023China
| | - Wei Huang
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu Key Laboratory for BiosensorsNanjing University of Posts & TelecommunicationsNanjing210023China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Nanjing Tech University30 South Puzhu RoadNanjing211800P. R. China
- Shaanxi Institute of Flexible Electronics (SIFE)Northwestern Polytechnical University (NPU)Xi'an710072China
| | - Quli Fan
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu Key Laboratory for BiosensorsNanjing University of Posts & TelecommunicationsNanjing210023China
- Shaanxi Institute of Flexible Electronics (SIFE)Northwestern Polytechnical University (NPU)Xi'an710072China
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12
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Sharma S, Srinivas S, Rakshit S, Sengupta S. Aminoindole and naphthalimide based charge transfer fluorescent probes for pH sensing and live cell imaging. Org Biomol Chem 2022; 20:9422-9430. [PMID: 36408696 DOI: 10.1039/d2ob01614a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Fluorescent probes are essential for imaging of cancer cells and for tracking organelles inside cells. We have synthesized three molecular rotors AIN, AINP and F-AINP based on 1-aminoindole (AI) as an electron donor and naphthalimide as an electron acceptor. All compounds showed charge transfer (CT) character, aggregation induced emission (AIE) and emission responsiveness towards temperature variation and solvent viscosity. AINP was most sensitive towards viscosity among all molecules with a viscosity sensitivity of ∼0.37. AIN, AINP and F-AINP showed negative temperature coefficients in chloroform with internal sensitivities of -0.04% °C-1, -0.08% °C-1 and -0.1% °C-1, respectively. Furthermore, all the rotors were sensitive towards the pH of the solvent environment as revealed by acid titration and base back-titration and served as colorimetric pH sensors with intriguing photophysical characteristics. Additionally, AINP and F-AINP were used to image the live cancer cell line A549 and the fibroblast cell line L929, and the imaging studies revealed the incorporation of dyes in the cytoplasmic space of the cells except for the nuclei.
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Affiliation(s)
- Sushil Sharma
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, P.O. Manauli, Mohali, Punjab 140306, India.
| | - Sai Srinivas
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, P.O. Manauli, Mohali, Punjab 140306, India.
| | - Sabyasachi Rakshit
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, P.O. Manauli, Mohali, Punjab 140306, India.
| | - Sanchita Sengupta
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, P.O. Manauli, Mohali, Punjab 140306, India.
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13
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Lau MHY, Wong CH, Chan HYE, Au-Yeung HY. Development of Fluorescent Turn-On Probes for CAG-RNA Repeats. BIOSENSORS 2022; 12:1080. [PMID: 36551047 PMCID: PMC9775061 DOI: 10.3390/bios12121080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Fluorescent sensing of nucleic acids is a highly sensitive and efficient bioanalytical method for their study in cellular processes, detection and diagnosis in related diseases. However, the design of small molecule fluorescent probes for the selective binding and detection of RNA of a specific sequence is very challenging because of their diverse, dynamic, and flexible structures. By modifying a bis(amidinium)-based small molecular binder that is known to selectively target RNA with CAG repeats using an environment-sensitive fluorophore, a turn-on fluorescent probe featuring aggregation-induced emission (AIE) is successfully developed in this proof-of-concept study. The probe (DB-TPE) exhibits a strong, 19-fold fluorescence enhancement upon binding to a short CAG RNA, and the binding and fluorescence response was found to be specific to the overall RNA secondary structure with A·A mismatches. These promising analytical performances suggest that the probe could be applied in pathological studies, disease progression monitoring, as well as diagnosis of related neurodegenerative diseases due to expanded CAG RNA repeats.
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Affiliation(s)
- Matthew Ho Yan Lau
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Chun-Ho Wong
- School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Ho Yin Edwin Chan
- School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Gerald Choa Neuroscience Centre, The Chinese University of Hong Kong, Hong Kong, China
- Nexus of Rare Neurodegenerative Diseases, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Ho Yu Au-Yeung
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- Nexus of Rare Neurodegenerative Diseases, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China
- State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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14
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Visualization of Antimicrobial-Induced Bacterial Membrane Disruption with a Bicolor AIEgen. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10070284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Gram-negative bacteria are difficult to kill due to their complex cell envelope, including the outer membrane (OM) and cytoplasmic membrane (CM). To monitor the membranolytic action of antimicrobials on Gram-negative bacteria would facilitate the development of effective antimicrobials. In this paper, an aggregation-induced emission luminogen (AIEgen) with microenvironment-sensitive properties was employed to indicate the interaction of antimicrobials with the OM and CM of Gram-negative bacteria. The damaged extent of OM and CM caused by antimicrobials with the change of dosage and incubation time can be visually captured based on the variation of two emission colors of IQ-Cm responding to OM-defective (green) and CM-disruptive bacteria (orange). Meanwhile, the activity assessment of antimicrobials can be easily realized within 1~2 h based on the distinct response of IQ-Cm to live and dead E. coli, which is much faster than the agar plate culture. This probe may shed light on the understanding of the interaction between the membrane-active antimicrobials and cell envelope of Gram-negative bacteria and contribute to the future development of antimicrobials.
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15
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Klimek R, Asido M, Hermanns V, Junek S, Wachtveitl J, Heckel A. Inactivation of Competitive Decay Channels Leads to Enhanced Coumarin Photochemistry. Chemistry 2022; 28:e202200647. [PMID: 35420716 PMCID: PMC9320935 DOI: 10.1002/chem.202200647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Indexed: 11/30/2022]
Abstract
In the development of photolabile protecting groups, it is of high interest to selectively modify photochemical properties with structural changes as simple as possible. In this work, knowledge of fluorophore optimization was adopted and used to design new coumarin‐ based photocages. Photolysis efficiency was selectively modulated by inactivating competitive decay channels, such as twisted intramolecular charge transfer (TICT) or hydrogen‐bonding, and the photolytic release of the neurotransmitter serotonin was demonstrated. Structural modifications inspired by the fluorophore ATTO 390 led to a significant increase in the uncaging cross section that can be further improved by the simple addition of a double bond. Ultrafast transient absorption spectroscopy gave insights into the underlying solvent‐dependent photophysical dynamics. The chromophores presented here are excellently suited as new photocages in the visible wavelength range due to their simple synthesis and their superior photochemical properties.
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Affiliation(s)
- Robin Klimek
- Institute for Organic Chemistry and Chemical Biology Goethe University Frankfurt Max-von-Laue Str. 9 60438 Frankfurt Germany
| | - Marvin Asido
- Institute of Physical and Theoretical Chemistry Goethe University Frankfurt Max-von-Laue Str. 9 60438 Frankfurt Germany
| | - Volker Hermanns
- Institute for Organic Chemistry and Chemical Biology Goethe University Frankfurt Max-von-Laue Str. 9 60438 Frankfurt Germany
| | - Stephan Junek
- Max Planck Institute for Brain Research Max-von-Laue Str. 4 60438 Frankfurt Germany
| | - Josef Wachtveitl
- Institute of Physical and Theoretical Chemistry Goethe University Frankfurt Max-von-Laue Str. 9 60438 Frankfurt Germany
| | - Alexander Heckel
- Institute for Organic Chemistry and Chemical Biology Goethe University Frankfurt Max-von-Laue Str. 9 60438 Frankfurt Germany
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16
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Zhou C, Guo Q, Feng J, Liu Z, Qiao Y. Tunable AIE-Active Assemblies Inducing Bacterial Agglutination toward Noninvasive Photodynamic Antiseptic. ACS APPLIED BIO MATERIALS 2022; 5:3127-3133. [PMID: 35713485 DOI: 10.1021/acsabm.2c00370] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Aggregation-induced emission (AIE) photosensitizer assemblies capable of inducing bacterial agglutination were fabricated to achieve a high PDT efficacy in a noninvasive manner. An AIE-active molecule CTRA was designed to bear the donor and acceptor subunits for singlet oxygen (1O2) generation. An amphiphile DGal with a β-d-galactose headgroup was introduced to coassemble for the photosensitizer assemblies bearing glycosyls for bacteria capture as well as to tune the 1O2 generation of CTRA. At the optimal combination of two components, a highly efficient noninvasive PDT activity with nearly 100% effectiveness against S. aureus was realized.
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Affiliation(s)
- Chengcheng Zhou
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Qiaoni Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jianguo Feng
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Zhiyang Liu
- School of Chemistry and Chemical Engineering, Institute of Advanced Materials, Southeast University, Nanjing 211189, China
| | - Yan Qiao
- Beijing National Laboratory for Molecular Sciences (BNLMS) Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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17
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Sun Z, Shi S, Guan P, Liu B. Construction of heteroaryl-bridged NIR AIEgens for specific imaging of lipid droplets and its application in photodynamic therapy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 272:120946. [PMID: 35149481 DOI: 10.1016/j.saa.2022.120946] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/30/2021] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
As a kind of subcellular organelle, lipid droplets (LDs) play a critical role in the body's normal metabolism. LDs have gained increasing attention as a fluorescent photodynamic target site. Near-infrared (NIR) organic light-emitting luminescent materials, with aggregation-induced emission (AIE)-active feature, preeminent LD-imaging ability, and effective reactive oxygen species (ROS) production property, have been widely used for photodynamic therapy (PDT) in diagnostic therapeutics, but its application remains challenging. In the present work, three novel NIR organic compounds with AIE-active feature, namely, TPET-Is, TPET-Fu, and TPEF-Is, were developed and synthesized. These heteroaryl-bridged molecules possess a donor-donor-π-acceptor structure and strong intramolecular charge transfer character. These AIEgens are capable of high-fidelity LD imaging in living cells (Pearson's coefficient values: 0.94, 0.96, 0.97) due to their biocompatibility, good photostability, and strong lipophilicity (LogP values: 9.39, 7.89, 8.03), respectively. Moreover, they can be also applied in bright imaging the LDs of oil-rich plant tissues, such as those of sunflower seeds. The respective AIEgens TPET-Fu of these compounds can also produce ROS in the condition of white light to effectively kill live Hela cells. The present study thus provides a potential strategy through heteroaryl-bridged molecular engineering for LD-targeted imaging and PDT application.
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Affiliation(s)
- Zhanguo Sun
- Key Laboratory of Chemical Biology and Molecular Engineering, Ministry of Education, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China; Institute of Carbon Materials Science, Shanxi DaTong University, DaTong, Shanxi Province 037009, China
| | - Shuman Shi
- Key Laboratory of Chemical Biology and Molecular Engineering, Ministry of Education, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Pengli Guan
- Key Laboratory of Chemical Biology and Molecular Engineering, Ministry of Education, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Bin Liu
- Key Laboratory of Chemical Biology and Molecular Engineering, Ministry of Education, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
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18
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Liu D, Li PY, Wang SJ, Gong B, Lu T, Li GY. Steric hindrance effect on the excited-state proton transfer process: TDDFT study on the fluorescent sensing mechanism of a fluoride sensor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 271:120872. [PMID: 35042045 DOI: 10.1016/j.saa.2022.120872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/03/2022] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
An understanding of the excited-state process and the sensing mechanism for specific anions can be helpful for the design and synthesis of fluorescent sensors in analytical chemistry and biotechnology. Here, we theoretically investigated the fluorescent response mechanism of a reported acylhydrazone-based fluorescent sensor (Soft Matter, 2019, 15, 6690) for fluoride recognition using the time-dependent density functional theory approach. At the M06/TZVP/SCM level, the vertical excitation energies, which were calculated based on the ground state and first singlet-state geometries of the sensor molecule, agreed well with the experimental ultraviolet-visible and fluorescence spectra. Therefore, the time-dependent density functional theory method was considered reasonable and effective. According to the frontier orbital analysis and an excited-state potential energy scan, we proposed an excited-state proton transfer mechanism for the sensor-fluorine complex, where the steric hindrance leads to a high potential barrier. The excited-state proton transfer process facilitates sensor molecule deprotonation, alleviates its steric hindrance effect and expands its conjugated system. As a result, the fluorescence emission band of the sensor molecule was red-shifted significantly with the addition of fluoride anion. Based on this fluorescence difference, the sensor could be used for fluoride anion identification. This work provides a strategy to study sensor-analyte interactions in the excited state and offers an approach to tune the fluorescence emission wavelength of sensor molecules in anionic environments.
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Affiliation(s)
- Dong Liu
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China
| | - Peng-Yuan Li
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China
| | - Si-Jia Wang
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China
| | - Bo Gong
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China
| | - Ting Lu
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China.
| | - Guang-Yue Li
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China.
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19
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Duan Y, Liu Y, Han H, Geng H, Liao Y, Han T. A dual-channel indicator of fish spoilage based on a D-π-A luminogen serving as a smart label for intelligent food packaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 266:120433. [PMID: 34601370 DOI: 10.1016/j.saa.2021.120433] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 09/22/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Advances in food monitoring benefit tremendously from the naked-eye observation and device-miniaturization of colorimetric and fluorometric methods. Intelligent food packaging, containing a built-in sensor inside food bags, is capable of real-time monitoring of food quality by visibly discernible out-put signals, which effectively ensures food safety. We synthesized a donor-π-acceptor (D-π-A) compound DPABA, and disclosed its fluorescence response to amines. According to quantum chemical calculations, DPABA is apt to D-A coupling in aggregated state, causing the formation of exciplex/excimer together with intermolecular charge/energy transfer to the disadvantage of light emission; while the evasion of amine vapors would decouple the intermolecular D-A interactions to induce stronger emission with shorter wavelength. Utilizing the amine vapor generated by fish, DPABA can serve as an indicator for freshness monitoring. To create an intelligent food package, the compound was made into cellulose film, which was further cut into smart labels to be encapsulated into food bags. The as-prepared smart label exhibits red color under ambient light and glows weak red emission under UV light, while it turns into faint yellow color in response to putrid fish, and its emission changes to bright cyan. The output signals can be accurately recorded by instrument, and detected by naked eye, suggesting high signal contrast. In addition, the smart label exhibits different changing scope in response to different degree of freshness, showing high potential for in-field detection.
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Affiliation(s)
- Yuai Duan
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Yang Liu
- Beijing Key Laboratory of Radiation Advanced Materials, Beijing Research Center for Radiation Application, Beijing, 100015, China
| | - Hongliang Han
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Hua Geng
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Yi Liao
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
| | - Tianyu Han
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
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20
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Hindered Tetraphenylethylene Helicates: Chiral Fluorophores with Deep‐Blue Emission, Multiple‐Color CPL, and Chiral Recognition Ability. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202115216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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21
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Li K, Ren TB, Huan S, Yuan L, Zhang XB. Progress and Perspective of Solid-State Organic Fluorophores for Biomedical Applications. J Am Chem Soc 2021; 143:21143-21160. [PMID: 34878771 DOI: 10.1021/jacs.1c10925] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Fluorescent organic dyes have been extensively used as raw materials for the development of versatile imaging tools in the field of biomedicine. Particularly, the development of solid-state organic fluorophores (SSOFs) in the past 20 years has exhibited an upward trend. In recent years, studies on SSOFs have focused on the development of advanced tools, such as optical contrast agents and phototherapy agents, for biomedical applications. However, the practical application of these tools has been hindered owing to several limitations. Thus, in this Perspective, we have provided insights that could aid researchers to further develop these tools and overcome the limitations such as limited aqueous dispersibility, low biocompatibility, and uncontrolled emission. First, we described the inherent photophysical properties and fluorescence mechanisms of conventional, aggregation-induced emissive, and precipitating SSOFs with respect to their biomedical applications. Subsequently, we highlighted the recent development of functionalized SSOFs for bioimaging, biosensing, and theranostics. Finally, we elucidated the potential prospects and limitations of current SSOF-based tools associated with biomedical applications.
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Affiliation(s)
- Ke Li
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Tian-Bing Ren
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Shuangyan Huan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Lin Yuan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Xiao-Bing Zhang
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
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22
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Hu M, Ye FY, Du C, Wang W, Yu W, Liu M, Zheng YS. Hindered Tetraphenylethylene Helicates: Chiral Fluorophores with Deep-Blue Emission, Multiple-Color CPL, and Chiral Recognition Ability. Angew Chem Int Ed Engl 2021; 61:e202115216. [PMID: 34904350 DOI: 10.1002/anie.202115216] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Indexed: 01/18/2023]
Abstract
New hindered tetraphenylethylene (TPE) helicates with substitution at 2,6-position of phenyl rings were designed and synthesized. Due to the increased hindrance, the TPE helicates emit strong deep-blue to violet fluorescence both in the solid state and in solution, and could be resolved into enantiomers that emit strong and multicolor circularly polarized luminescence (CPL), and exhibit a high enantioselective recognition of chiral tartaric acid and its derivatives. Surprisingly, the derived helicate tetramines possess amino groups with an unpredented planar structure and sp2 -hybridized nitrogen, arousing the change between AIE effect and ACQ phenomenon through photoinduced electron transfer (PET). With advantages of short synthetic route, many modification positions, deep-blue to violet emission, wide CPL tuning, and high chiral recognition ability, the hindered TPE helicates show broad prospects as chiral materials.
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Affiliation(s)
- Ming Hu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Feng-Ying Ye
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Cong Du
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Weizhou Wang
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, China
| | - Wei Yu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yan-Song Zheng
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
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23
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Borjihan Q, Wu H, Dong A, Gao H, Yang Y. AIEgens for Bacterial Imaging and Ablation. Adv Healthc Mater 2021; 10:e2100877. [PMID: 34342176 DOI: 10.1002/adhm.202100877] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/04/2021] [Indexed: 12/15/2022]
Abstract
Accurate and sensitive diagnosis of pathogenic bacterial infection is a fundamental first step for correct bacteria management, helping to avoid the development of drug-resistant bacteria caused by the inappropriate use and overuse of antibiotics. Fluorescence probes as a promising visual tool can help identify pathogens rapidly and reliably. However, rigidly structured traditional fluorescence probes generally suffer from the drawback of aggregation-caused quenching (ACQ) effect, which greatly undermines their advantages with respect to sensitivity. Luminogens with aggregation-induced emission properties, namely AIEgens, can overcome the ACQ effect and certain AIEgen-based materials are capable of generating reactive oxygen species (ROS) in the aggregate states. Hence, they have become powerful tools for imaging and killing bacteria. This review summarizes the recent advances in AIEgens for the diagnosis and treatment of pathogen infections. Special attention has been paid to the molecular design, the application in bacterial imaging and ablation in vitro and in vivo, and the biocompatibility of AIEgens. Finally, the challenges and prospects are discussed in terms of using AIEgens to advance precision therapies for pathogen infections.
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Affiliation(s)
- Qinggele Borjihan
- College of Chemistry and Chemical Engineering Engineering Research Center of Dairy Quality and Safety Control Technology Ministry of Education Inner Mongolia University Hohhot 010021 P. R. China
| | - Haixia Wu
- College of Chemistry and Chemical Engineering Engineering Research Center of Dairy Quality and Safety Control Technology Ministry of Education Inner Mongolia University Hohhot 010021 P. R. China
| | - Alideertu Dong
- College of Chemistry and Chemical Engineering Engineering Research Center of Dairy Quality and Safety Control Technology Ministry of Education Inner Mongolia University Hohhot 010021 P. R. China
| | - Hui Gao
- State Key Laboratory of Separation Membranes and Membrane Processes School of Materials Science and Engineering Tiangong University Tianjin 300387 P. R. China
| | - Ying‐Wei Yang
- International Joint Research Laboratory of Nano‐Micro Architecture Chemistry College of Chemistry Jilin University 2699 Qianjin Street Changchun 130012 P. R. China
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24
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Colas K, Doloczki S, Kesidou A, Sainero‐Alcolado L, Rodriguez‐Garcia A, Arsenian‐Henriksson M, Dyrager C. Photophysical Characteristics of Polarity‐Sensitive and Lipid Droplet‐Specific Phenylbenzothiadiazoles. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100040] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kilian Colas
- Department of Chemistry-BMC Uppsala University Box 576 75123 Uppsala Sweden
| | - Susanne Doloczki
- Department of Chemistry-BMC Uppsala University Box 576 75123 Uppsala Sweden
| | - Aikaterina Kesidou
- Department of Chemistry-BMC Uppsala University Box 576 75123 Uppsala Sweden
| | - Lourdes Sainero‐Alcolado
- Department of Microbiology Tumor and Cell biology (MTC), Biomedicum Karolinska Institute 17165 Stockholm Sweden
| | - Aida Rodriguez‐Garcia
- Department of Microbiology Tumor and Cell biology (MTC), Biomedicum Karolinska Institute 17165 Stockholm Sweden
| | - Marie Arsenian‐Henriksson
- Department of Microbiology Tumor and Cell biology (MTC), Biomedicum Karolinska Institute 17165 Stockholm Sweden
| | - Christine Dyrager
- Department of Chemistry-BMC Uppsala University Box 576 75123 Uppsala Sweden
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25
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Dong L, Si-Jia W, Bo G, Lei S, Guang-Yue L. Theoretical study on the sensing mechanism of a coumarin-based fluorescent probe for biological thiols. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 248:119268. [PMID: 33310616 DOI: 10.1016/j.saa.2020.119268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 11/15/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
The sensing mechanism of a reported fluorescence probe for cysteine, homocysteine and glutathione (Yin et al., 2018) has been investigated by time-dependent density functional theory. Experimental absorption and emission spectra of the probe before and after thiol addition were reproduced well by theoretical calculations, which validated the rationality of the method. Optimized geometries showed that the probe molecule had distinctly different geometries in its ground and excited states. It corresponded to the photoisomerization process and explained the weak fluorescence of the probe molecule. Moreover, by the potential energy curve scan, photoisomerization was further confirmed to be a spontaneous process with a barrier that barely existed. Frontier orbital analysis indicated that this photoinduced isomerization of the probe molecule derived from the antibonding character for lowest unoccupied molecular orbital at its CC double bond. In contrast, probe-thiol complexes exhibited similar geometries in their ground and excited states, which was responsible for the strong fluorescence of the probe with thiols. Due to distinct excited-processes, the probe can be used to sense thiols by monitoring the fluorescent change.
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Affiliation(s)
- Liu Dong
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China
| | - Wang Si-Jia
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China
| | - Gong Bo
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China
| | - Shi Lei
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China.
| | - Li Guang-Yue
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China.
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26
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Liu S, Li Y, Zhang J, Zhang H, Wang Y, Chuah C, Tang Y, Lam J, Kwok R, Ou H, Ding D, Tang B. A two-in-one Janus NIR-II AIEgen with balanced absorption and emission for image-guided precision surgery. Mater Today Bio 2021; 10:100087. [PMID: 33889836 PMCID: PMC8050777 DOI: 10.1016/j.mtbio.2020.100087] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 11/23/2020] [Accepted: 11/25/2020] [Indexed: 02/07/2023] Open
Abstract
Fluorescence imaging in the near-infrared II (NIR-II, 1000-1700 nm) region opens up new avenues for biological systems due to suppressed scattering and low autofluorescence at longer-wavelength photons. Nonetheless, the development of organic NIR-II fluorophores is still limited mainly due to the shortage of efficient molecular design strategy. Herein, we propose an approach of designing Janus NIR-II fluorophores by introducing electronic donors with distinct properties into one molecule. As a proof-of-concept, fluorescent dye 2 TT-m, oC6B with both twisted and planar electronic donors displayed balanced absorption and emission which were absent in its parent compound. The key design strategy for Janus molecule is that it combines the merits of intense absorption from planar architecture and high fluorescence quantum yield from twisted motif. The resulting 2 TT-m, oC6B nanoparticles exhibit a high molar absorptivity of 1.12 ⨯104 M-1 cm-1 at 808 nm and a NIR-II quantum yield of 3.7%, displaying a typical aggregation-induced emission (AIE) attribute. The highly bright and stable 2 TT-m, oC6B nanoparticles assured NIR-II image-guided cancer surgery to resect submillimeter tumor nodules. The present study may inspire further development of molecular design philosophy for highly bright NIR-II fluorophores for biomedical applications.
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Affiliation(s)
- S. Liu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Y. Li
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - J. Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - H. Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Y. Wang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - C. Chuah
- Institute for NanoScale Science and Technology, College of Science and Engineering, Flinders University, South Australia, 5042, Australia
| | - Y. Tang
- Institute for NanoScale Science and Technology, College of Science and Engineering, Flinders University, South Australia, 5042, Australia
| | - J.W.Y. Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - R.T.K. Kwok
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - H. Ou
- Key Laboratory of Bioactive Materials Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - D. Ding
- Key Laboratory of Bioactive Materials Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - B.Z. Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology, Guangzhou, 510640, China
- AIE Institute, Guangzhou Development District, Huangpu, Guangzhou, 510530, China
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27
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Qi J, Feng L, Zhang X, Zhang H, Huang L, Zhou Y, Zhao Z, Duan X, Xu F, Kwok RTK, Lam JWY, Ding D, Xue X, Tang BZ. Facilitation of molecular motion to develop turn-on photoacoustic bioprobe for detecting nitric oxide in encephalitis. Nat Commun 2021; 12:960. [PMID: 33574252 PMCID: PMC7878857 DOI: 10.1038/s41467-021-21208-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 01/07/2021] [Indexed: 12/19/2022] Open
Abstract
Nitric oxide (NO) is an important signaling molecule overexpressed in many diseases, thus the development of NO-activatable probes is of vital significance for monitoring related diseases. However, sensitive photoacoustic (PA) probes for detecting NO-associated complicated diseases (e.g., encephalitis), have yet to be developed. Herein, we report a NO-activated PA probe for in vivo detection of encephalitis by tuning the molecular geometry and energy transformation processes. A strong donor-acceptor structure with increased conjugation can be obtained after NO treatment, along with the active intramolecular motion, significantly boosting "turn-on" near-infrared PA property. The molecular probe exhibits high specificity and sensitivity towards NO over interfering reactive species. The probe is capable of detecting and differentiating encephalitis in different severities with high spatiotemporal resolution. This work will inspire more insights into the development of high-performing activatable PA probes for advanced diagnosis by making full use of intramolecular motion and energy transformation processes.
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Affiliation(s)
- Ji Qi
- Department of Chemistry, The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, Department of Chemical and Biological Engineering and Institute of Molecular Functional Materials, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
| | - Leyan Feng
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Haihe Education Park, Tianjin, China
| | - Xiaoyan Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Sciences, Nankai University, Tianjin, China
| | - Haoke Zhang
- Department of Chemistry, The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, Department of Chemical and Biological Engineering and Institute of Molecular Functional Materials, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
| | - Liwen Huang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Haihe Education Park, Tianjin, China
| | - Yutong Zhou
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Haihe Education Park, Tianjin, China
| | - Zheng Zhao
- Department of Chemistry, The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, Department of Chemical and Biological Engineering and Institute of Molecular Functional Materials, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
| | - Xingchen Duan
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Sciences, Nankai University, Tianjin, China
| | - Fei Xu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Haihe Education Park, Tianjin, China
| | - Ryan T K Kwok
- Department of Chemistry, The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, Department of Chemical and Biological Engineering and Institute of Molecular Functional Materials, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
- HKUST-Shenzhen Research Institute, Nanshan, Shenzhen, China
| | - Jacky W Y Lam
- Department of Chemistry, The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, Department of Chemical and Biological Engineering and Institute of Molecular Functional Materials, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
- HKUST-Shenzhen Research Institute, Nanshan, Shenzhen, China
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Sciences, Nankai University, Tianjin, China
| | - Xue Xue
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Haihe Education Park, Tianjin, China.
| | - Ben Zhong Tang
- Department of Chemistry, The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, Department of Chemical and Biological Engineering and Institute of Molecular Functional Materials, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China.
- HKUST-Shenzhen Research Institute, Nanshan, Shenzhen, China.
- NSFC Centre for Luminescence from Molecular Aggregates, SCUT-HKUST Joint Research Institute, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, China.
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28
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Colas K, Holmberg KO, Chiang L, Doloczki S, Swartling FJ, Dyrager C. Indolylbenzothiadiazoles as highly tunable fluorophores for imaging lipid droplet accumulation in astrocytes and glioblastoma cells. RSC Adv 2021; 11:23960-23967. [PMID: 35479010 PMCID: PMC9036785 DOI: 10.1039/d1ra04419b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 06/21/2021] [Indexed: 12/11/2022] Open
Abstract
We present an extensive photophysical study of a series of fluorescent indolylbenzothiadiazole derivatives and their ability to specifically image lipid droplets in astrocytes and glioblastoma cells. All compounds in the series displayed positive solvatochromism together with large Stokes shifts, and π-extended derivatives exhibited elevated brightness. It was shown that the fluorescence properties were highly tunable by varying the electronic character or size of the N-substituent on the indole motif. Three compounds proved capable as probes for detecting small quantities of lipid deposits in healthy and cancerous brain cells. In addition, all twelve compounds in the series were predicted to cross the blood–brain barrier, which raises the prospect for future in vivo studies for exploring the role of lipid droplets in the central nervous system. We present an extensive photophysical study of a series of fluorescent indolylbenzothiadiazole derivatives and their ability to specifically image lipid droplets in astrocytes and glioblastoma cells.![]()
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Affiliation(s)
- Kilian Colas
- Department of Chemistry – BMC
- Uppsala University
- 75123 Uppsala
- Sweden
| | - Karl O. Holmberg
- Department of Immunology, Genetics and Pathology
- Science for Life Laboratory
- Uppsala University
- 75185 Uppsala
- Sweden
| | - Linus Chiang
- Department of Chemistry
- University of the Fraser Valley
- Abbotsford
- Canada
| | - Susanne Doloczki
- Department of Chemistry – BMC
- Uppsala University
- 75123 Uppsala
- Sweden
| | - Fredrik J. Swartling
- Department of Immunology, Genetics and Pathology
- Science for Life Laboratory
- Uppsala University
- 75185 Uppsala
- Sweden
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29
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30
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Sharma S, Wei Z, Grozema FC, Sengupta S. Structure-property relationships in multi-stimuli responsive BODIPY-biphenyl-benzodithiophene TICT rigidochromic rotors exhibiting (pseudo-)Stokes shifts up to 221 nm. Phys Chem Chem Phys 2020; 22:25514-25521. [PMID: 33164016 DOI: 10.1039/d0cp04579a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structure-property relationships of donor-π-acceptor (D-π-A) type molecular dyad (pp-AD) and triads (pp-ADA and Me-pp-ADA) based on benzodithiophene and BODIPY with biphenyl spacers have been reported. Rotors pp-AD and pp-ADA showed efficient twisted intramolecular charge transfer (TICT) with near infrared (NIR) emissions at ∼712 nm and ∼725 nm with (pseudo-)Stokes shifts of ∼208 nm and ∼221 nm, respectively, and prominent solvatochromism. A structurally similar triad, Me-pp-ADA, with tetramethyl substituents on the BODIPY core instead was TICT inactive and exhibited excitation energy transfer with a transfer efficiency of ∼88% as revealed using steady state emission and transient absorption measurements. Rotors pp-AD and pp-ADA showed NIR emission with an enhancement in intensity with the addition of water in THF solution as well as a pronounced change in emission intensity with temperature and viscosity variations, which justify their utility as temperature and viscosity sensors. Furthermore, the linear correlation of lifetime with fluorescence intensity ratios of the donor and acceptor justifies the rigidochromic behaviour of these rotors.
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Affiliation(s)
- Sushil Sharma
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, Punjab-140306, India.
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31
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Dhara A, Sadhukhan T, Sheetz EG, Olsson AH, Raghavachari K, Flood AH. Zero-Overlap Fluorophores for Fluorescent Studies at Any Concentration. J Am Chem Soc 2020; 142:12167-12180. [PMID: 32539380 DOI: 10.1021/jacs.0c02450] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Fluorophores are powerful tools for the study of chemistry, biology, and physics. However, fluorescence is severely impaired when concentrations climb above 5 μM as a result of effects like self-absorption and chromatic shifts in the emitted light. Herein, we report the creation of a charge-transfer (CT) fluorophore and the discovery that its emission color seen at low concentrations is unchanged even at 5 mM, some 3 orders of magnitude beyond typical limits. The fluorophore is composed of a triphenylamine-substituted cyanostar macrocycle, and it exhibits a remarkable Stokes shift of 15 000 cm-1 to generate emission at 633 nm. Crucial to the performance of this fluorophore is the observation that its emission spectrum shows near-zero overlap with the absorption band at 325 nm. We propose that reducing the spectral overlap to zero is a key to achieving full fluorescence across all concentrations. The triphenylamine donor and five cyanostilbene acceptor units of the macrocycle generate an emissive CT state. Unlike closely related donor-acceptor control compounds showing dual emission, the cyanostar framework inhibited emission from the second state to create a zero-overlap fluorophore. We demonstrated the use of emission spectroscopy for characterization of host-guest complexation at millimolar concentrations, which are typically the exclusive domain of NMR spectroscopy. The binding of the PF6- anion generates a 2:1 sandwich complex with blue-shifted emission. Distinct from twisted intramolecular charge-transfer (TICT) states, experiment-supported density functional theory shows a 67° twist inside an acceptor unit in the CT state instead of displaying a twist between the donor and acceptor; it is TICT-like. Inspired by the findings, we uncovered similar concentration-independent behavior from a control compound, strongly suggesting this behavior may be latent to other large Stokes-shift fluorophores. We discuss strategies capable of generating zero-overlap fluorophores to enable accurate fluorescence characterization of processes across all practical concentrations.
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Affiliation(s)
- Ayan Dhara
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Tumpa Sadhukhan
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Edward G Sheetz
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Andrew H Olsson
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Krishnan Raghavachari
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Amar H Flood
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
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32
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Liu S, Li Y, Kwok RTK, Lam JWY, Tang BZ. Structural and process controls of AIEgens for NIR-II theranostics. Chem Sci 2020; 12:3427-3436. [PMID: 34163616 PMCID: PMC8179408 DOI: 10.1039/d0sc02911d] [Citation(s) in RCA: 123] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 06/12/2020] [Indexed: 12/21/2022] Open
Abstract
Aggregation-induced emission (AIE) is a cutting-edge fluorescence technology, giving highly-efficient solid-state photoluminescence. Particularly, AIE luminogens (AIEgens) with emission in the range of second near-infrared window (NIR-II, 1000-1700 nm) have displayed salient advantages for biomedical imaging and therapy. However, the molecular design strategy and underlying mechanism for regulating the balance between fluorescence (radiative pathway) and photothermal effect (non-radiative pathway) in these narrow bandgap materials remain obscure. In this review, we outline the latest achievements in the molecular guidelines and photophysical process control for developing highly efficient NIR-II emitters or photothermal agents with aggregation-induced emission (AIE) attributes. We provide insights to optimize fluorescence efficiency by regulating multi-hierarchical structures from single molecules (flexibilization) to molecular aggregates (rigidification). We also discuss the crucial role of intramolecular motions in molecular aggregates for balancing the functions of fluorescence imaging and photothermal therapy. The superiority of the NIR-II region is demonstrated by fluorescence/photoacoustic imaging of blood vessels and the brain as well as photothermal ablation of the tumor. Finally, a summary of the challenges and perspectives of NIR-II AIEgens for in vivo theranostics is given.
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Affiliation(s)
- Shunjie Liu
- Department of Chemistry, The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, Department of Chemical and Biological Engineering, Division of Life Science, State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Yuanyuan Li
- Department of Chemistry, The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, Department of Chemical and Biological Engineering, Division of Life Science, State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Ryan T K Kwok
- Department of Chemistry, The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, Department of Chemical and Biological Engineering, Division of Life Science, State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Jacky W Y Lam
- Department of Chemistry, The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, Department of Chemical and Biological Engineering, Division of Life Science, State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Ben Zhong Tang
- Department of Chemistry, The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, Department of Chemical and Biological Engineering, Division of Life Science, State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- Center for Aggregation-Induced Emission, SCUT-HKUST Joint Research Institute, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology Guangzhou 510640 China
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33
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Li Y, Liu S, Ni H, Zhang H, Zhang H, Chuah C, Ma C, Wong KS, Lam JWY, Kwok RTK, Qian J, Lu X, Tang BZ. ACQ‐to‐AIE Transformation: Tuning Molecular Packing by Regioisomerization for Two‐Photon NIR Bioimaging. Angew Chem Int Ed Engl 2020; 59:12822-12826. [DOI: 10.1002/anie.202005785] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Indexed: 12/31/2022]
Affiliation(s)
- Yuanyuan Li
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan Shenzhen 518057 China
| | - Shunjie Liu
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Huwei Ni
- State Key Laboratory of Modern Optical Instrumentations Centre for Optical and Electromagnetic Research College of Optical Science and Engineering Zhejiang University Hangzhou 310058 China
| | - Haoke Zhang
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Hequn Zhang
- State Key Laboratory of Modern Optical Instrumentations Centre for Optical and Electromagnetic Research College of Optical Science and Engineering Zhejiang University Hangzhou 310058 China
- Interdisciplinary Institute of Neuroscience and Technology (ZIINT) the Second Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310020 China
| | - Clarence Chuah
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Chao Ma
- Department of Physics The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Kam Sing Wong
- Department of Physics The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Jacky W. Y. Lam
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Ryan T. K. Kwok
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan Shenzhen 518057 China
| | - Jun Qian
- State Key Laboratory of Modern Optical Instrumentations Centre for Optical and Electromagnetic Research College of Optical Science and Engineering Zhejiang University Hangzhou 310058 China
| | - Xuefeng Lu
- Department of Materials Science Fudan University Shanghai 200438 China
| | - Ben Zhong Tang
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan Shenzhen 518057 China
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34
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Li Y, Liu S, Ni H, Zhang H, Zhang H, Chuah C, Ma C, Wong KS, Lam JWY, Kwok RTK, Qian J, Lu X, Tang BZ. ACQ‐to‐AIE Transformation: Tuning Molecular Packing by Regioisomerization for Two‐Photon NIR Bioimaging. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005785] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yuanyuan Li
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan Shenzhen 518057 China
| | - Shunjie Liu
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Huwei Ni
- State Key Laboratory of Modern Optical Instrumentations Centre for Optical and Electromagnetic Research College of Optical Science and Engineering Zhejiang University Hangzhou 310058 China
| | - Haoke Zhang
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Hequn Zhang
- State Key Laboratory of Modern Optical Instrumentations Centre for Optical and Electromagnetic Research College of Optical Science and Engineering Zhejiang University Hangzhou 310058 China
- Interdisciplinary Institute of Neuroscience and Technology (ZIINT) the Second Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310020 China
| | - Clarence Chuah
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Chao Ma
- Department of Physics The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Kam Sing Wong
- Department of Physics The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Jacky W. Y. Lam
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Ryan T. K. Kwok
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan Shenzhen 518057 China
| | - Jun Qian
- State Key Laboratory of Modern Optical Instrumentations Centre for Optical and Electromagnetic Research College of Optical Science and Engineering Zhejiang University Hangzhou 310058 China
| | - Xuefeng Lu
- Department of Materials Science Fudan University Shanghai 200438 China
| | - Ben Zhong Tang
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Department of Chemical and Biological Engineering State Key Laboratory of Molecular Neuroscience and Division of Life Science, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan Shenzhen 518057 China
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35
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Zhou C, Jiang M, Du J, Bai H, Shan G, Kwok RTK, Chau JHC, Zhang J, Lam JWY, Huang P, Tang BZ. One stone, three birds: one AIEgen with three colors for fast differentiation of three pathogens. Chem Sci 2020; 11:4730-4740. [PMID: 34122928 PMCID: PMC8159167 DOI: 10.1039/d0sc00256a] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 04/14/2020] [Indexed: 01/02/2023] Open
Abstract
Visually identifying pathogens favors rapid diagnosis at the point-of-care testing level. Here, we developed a microenvironment-sensitive aggregation-induced emission luminogen (AIEgen), namely IQ-Cm, for achieving fast discrimination of Gram-negative bacteria, Gram-positive bacteria and fungi by the naked-eye. With a twisted donor-acceptor and multi-rotor structure, IQ-Cm shows twisted intramolecular charge transfer (TICT) and AIE properties with sensitive fluorescence color response to the microenvironment of pathogens. Driven by the intrinsic structural differences of pathogens, IQ-Cm with a cationic isoquinolinium moiety and a membrane-active coumarin unit as the targeting and interacting groups selectively locates in different sites of three pathogens and gives three naked-eye discernible emission colors. Gram-negative bacteria are weak pink, Gram-positive bacteria are orange-red and fungi are bright yellow. Therefore, based on their distinctive fluorescence response, IQ-Cm can directly discriminate the three pathogens at the cell level under a fluorescence microscope. Furthermore, we demonstrated the feasibility of IQ-Cm as a visual probe for fast diagnosis of urinary tract infections, timely monitoring of hospital-acquired infection processes and fast detection of molds in the food field. This simple visualization strategy based on one single AIEgen provides a promising platform for rapid pathogen detection and point-of-care diagnosis.
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Affiliation(s)
- Chengcheng Zhou
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- HKUST Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan Shenzhen 518057 China
| | - Meijuan Jiang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Laboratory of Evolutionary Theranostics, School of Biomedical Engineering, Health Science Center, Shenzhen University Shenzhen 518060 China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University Shenzhen 518060 China
| | - Jian Du
- Urinary Surgery, The First Affiliated Hospital of Soochow University Pinghai Road Suzhou 215006 China
| | - Haotian Bai
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- HKUST Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan Shenzhen 518057 China
| | - Guogang Shan
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- HKUST Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan Shenzhen 518057 China
| | - Ryan T K Kwok
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- HKUST Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan Shenzhen 518057 China
| | - Joe H C Chau
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Jun Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- HKUST Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan Shenzhen 518057 China
| | - Peng Huang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Laboratory of Evolutionary Theranostics, School of Biomedical Engineering, Health Science Center, Shenzhen University Shenzhen 518060 China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- HKUST Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan Shenzhen 518057 China
- State Key Laboratory of Luminescent Materials and Devices, Center for Aggregation-Induced Emission, Guangzhou International Campus, South China University of Technology Guangzhou 510640 China
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36
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Li Y, Cai Z, Liu S, Zhang H, Wong STH, Lam JWY, Kwok RTK, Qian J, Tang BZ. Design of AIEgens for near-infrared IIb imaging through structural modulation at molecular and morphological levels. Nat Commun 2020; 11:1255. [PMID: 32152288 PMCID: PMC7062876 DOI: 10.1038/s41467-020-15095-1] [Citation(s) in RCA: 204] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 02/20/2020] [Indexed: 11/09/2022] Open
Abstract
Fluorescence imaging in near-infrared IIb (NIR-IIb, 1500-1700 nm) spectrum holds a great promise for tissue imaging. While few inorganic NIR-IIb fluorescent probes have been reported, their organic counterparts are still rarely developed, possibly due to the shortage of efficient materials with long emission wavelength. Herein, we propose a molecular design philosophy to explore pure organic NIR-IIb fluorophores by manipulation of the effects of twisted intramolecular charge transfer and aggregation-induced emission at the molecular and morphological levels. An organic fluorescent dye emitting up to 1600 nm with a quantum yield of 11.5% in the NIR-II region is developed. NIR-IIb fluorescence imaging of blood vessels and deeply-located intestinal tract of live mice based on organic dyes is achieved with high clarity and enhanced signal-to-background ratio. We hope this study will inspire further development on the evolution of pure organic NIR-IIb dyes for bio-imaging.
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Affiliation(s)
- Yuanyuan Li
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering and Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Zhaochong Cai
- State Key Laboratory of Modern Optical Instrumentations, Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Shunjie Liu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering and Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Haoke Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering and Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Sherman T H Wong
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering and Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering and Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Ryan T K Kwok
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering and Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Jun Qian
- State Key Laboratory of Modern Optical Instrumentations, Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering, Zhejiang University, Hangzhou, 310058, China.
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemical and Biological Engineering and Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China. .,HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China. .,Center for Aggregation-Induced Emission, SCUT-HKUST Joint Research Institute, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China. .,Ming Wai Lau Centre for Reparative Medicine, Karolinska Institutet, Hong Kong, China.
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37
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Zhang M, Li J, Yu L, Wang X, Bai M. Tuning the fluorescence based on the combination of TICT and AIE emission of a tetraphenylethylene with D–π–A structure. RSC Adv 2020; 10:14520-14524. [PMID: 35497165 PMCID: PMC9051877 DOI: 10.1039/d0ra00107d] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 04/02/2020] [Indexed: 12/28/2022] Open
Abstract
A simple D–π–A structured tetraphenylethylene with two electron-rich methyloxy groups and two electron withdrawing cyano groups, which features both twisted intramolecular charge-transfer (TICT) and aggregation-induced emission (AIE) properties, namely TPEOMeCN has been prepared. The emission of TPEOMeCN examined in various solvents is dependent on the polarities of solvents, which indicates the TICT character. The emission intensity of the compound also enhances with the increasing water fraction in H2O–DMSO mixtures, demonstrating the typical AIE property. Excitingly, the TICT and AIE emission could be observed separately or simultaneously by adjusting the water fraction or viscosity of the solvent. Encouragingly, the combined emission of the TPEOMeCN derived from this single molecule could be readily tuned via regulating the viscosity of the system, resulting in a broad emission peak which covers the visible spectrum (400–700 nm). This work provides a general strategy for designing molecules combining TICT emission and AIE for application as full-color emitters. The combination of the TICT and AIE properties in a tetraphenylethylene based molecule with D–π–A structure is observed by simply adjusting the viscosity of the solvent.![]()
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Affiliation(s)
- Mengxing Zhang
- Marine College
- Shandong University, Weihai
- Weihai 264209
- People's Republic of China
| | - Jiale Li
- Marine College
- Shandong University, Weihai
- Weihai 264209
- People's Republic of China
| | - Lirong Yu
- Marine College
- Shandong University, Weihai
- Weihai 264209
- People's Republic of China
| | - Xi Wang
- Marine College
- Shandong University, Weihai
- Weihai 264209
- People's Republic of China
| | - Ming Bai
- Marine College
- Shandong University, Weihai
- Weihai 264209
- People's Republic of China
- SDU-ANU Joint Science College
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38
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Liu D, Shi L, Gao SH, Wu YH, Li GY, Zhou CH. Twisted intramolecular charge transfer: A time-dependent density functional theory study on the sensing mechanism of a Schiff base sensor for fluoride. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2019.136894] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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39
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Aswathy PR, Sharma S, Tripathi NP, Sengupta S. Regioisomeric BODIPY Benzodithiophene Dyads and Triads with Tunable Red Emission as Ratiometric Temperature and Viscosity Sensors. Chemistry 2019; 25:14870-14880. [DOI: 10.1002/chem.201902952] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/17/2019] [Indexed: 02/06/2023]
Affiliation(s)
- P. R. Aswathy
- Department of Chemical SciencesIndian Institute of Science, Education and Research (IISER) Mohali Punjab 140306 India
| | - Sushil Sharma
- Department of Chemical SciencesIndian Institute of Science, Education and Research (IISER) Mohali Punjab 140306 India
| | - Narendra Pratap Tripathi
- Department of Chemical SciencesIndian Institute of Science, Education and Research (IISER) Mohali Punjab 140306 India
| | - Sanchita Sengupta
- Department of Chemical SciencesIndian Institute of Science, Education and Research (IISER) Mohali Punjab 140306 India
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40
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Tu Y, Liu J, Zhang H, Peng Q, Lam JWY, Tang BZ. Restriction of Access to the Dark State: A New Mechanistic Model for Heteroatom-Containing AIE Systems. Angew Chem Int Ed Engl 2019; 58:14911-14914. [PMID: 31343100 DOI: 10.1002/anie.201907522] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Indexed: 01/02/2023]
Abstract
Restriction of intramolecular motion (RIM), as the working mechanism of aggregation-induced emission (AIE), cannot fully explain some heteroatom-containing systems. Now, two excited states are taken into account and a mechanism, restriction of access to dark state (RADS), is specified to elaborate RIM and complete the picture of AIE mechanism. A nitrogen-containing molecule named APA is chosen as a model compound; its weak fluorescence in solution is ascribed to the easy access from the bright (π,π*) state to the close-lying dark (n,π*) state. By either metal complexation or aggregation, the dark state is less accessible due to restriction of the molecular motion leading to the dark state and elevation of the dark state energy, thus the bright state emission is restored. RADS is powerful in elucidating the AIE effect of molecules with excited states favoring non-radiative decay, including overlap-forbidden states such as (n,π*) and CT states, spin-forbidden triplet states, and so on.
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Affiliation(s)
- Yujie Tu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Junkai Liu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Haoke Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Qian Peng
- Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,State Key Laboratory of Luminescent Materials and Devices, Center for Aggregation-Induced Emission (Guangzhou International Campus,), South China University of Technology, Guangzhou, 510640, China
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41
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Tu Y, Liu J, Zhang H, Peng Q, Lam JWY, Tang BZ. Restriction of Access to the Dark State: A New Mechanistic Model for Heteroatom‐Containing AIE Systems. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907522] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Yujie Tu
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Junkai Liu
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Haoke Zhang
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Qian Peng
- Key Laboratory of Organic Solids Beijing National Laboratory for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Jacky W. Y. Lam
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
| | - Ben Zhong Tang
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China
- State Key Laboratory of Luminescent Materials and Devices Center for Aggregation-Induced Emission (Guangzhou International Campus,) South China University of Technology Guangzhou 510640 China
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42
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Lu Z, Quanz H, Ruhl J, Albrecht G, Logemann C, Schlettwein D, Schreiner PR, Wegner HA. Control of Excited-State Conformations in B,N-Acenes. Angew Chem Int Ed Engl 2019; 58:4259-4263. [PMID: 30657239 DOI: 10.1002/anie.201814104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Indexed: 11/07/2022]
Abstract
We present a new concept to control the conformations of molecules in the excited state through harvesting negative hyperconjugation. The strategy was realized with the 2,3,1,4-benzodiazadiborinane scaffold, which was prepared by a new synthetic procedure. Photochemical studies identified dual light emission, which was assigned to well-defined conformers. The emission at longer wavelength can be switched off by restricting the rotational degrees of freedom in the solid state as well as by controlling the energy levels of the excited states through adjusting the solvent polarity.
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Affiliation(s)
- Zhenpin Lu
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392, Giessen, Germany.,Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392, Giessen, Germany
| | - Henrik Quanz
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392, Giessen, Germany.,Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392, Giessen, Germany
| | - Julia Ruhl
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392, Giessen, Germany.,Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392, Giessen, Germany
| | - Georg Albrecht
- Institute of Applied Physics and Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392, Giessen, Germany
| | - Christian Logemann
- Institute of Inorganic Chemistry, Department of Chemistry, University of Cologne, Greinstr. 6, 50939, Köln, Germany
| | - Derck Schlettwein
- Institute of Applied Physics and Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392, Giessen, Germany
| | - Peter R Schreiner
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392, Giessen, Germany.,Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392, Giessen, Germany
| | - Hermann A Wegner
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392, Giessen, Germany.,Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392, Giessen, Germany
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43
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Lu Z, Quanz H, Ruhl J, Albrecht G, Logemann C, Schlettwein D, Schreiner PR, Wegner HA. Control of Excited‐State Conformations in B,N‐Acenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhenpin Lu
- Institute of Organic ChemistryJustus Liebig University Heinrich-Buff-Ring 17 35392 Giessen Germany
- Center for Materials Research (LaMa)Justus Liebig University Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Henrik Quanz
- Institute of Organic ChemistryJustus Liebig University Heinrich-Buff-Ring 17 35392 Giessen Germany
- Center for Materials Research (LaMa)Justus Liebig University Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Julia Ruhl
- Institute of Organic ChemistryJustus Liebig University Heinrich-Buff-Ring 17 35392 Giessen Germany
- Center for Materials Research (LaMa)Justus Liebig University Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Georg Albrecht
- Institute of Applied Physics and Center for Materials Research (LaMa)Justus Liebig University Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Christian Logemann
- Institute of Inorganic ChemistryDepartment of ChemistryUniversity of Cologne Greinstr. 6 50939 Köln Germany
| | - Derck Schlettwein
- Institute of Applied Physics and Center for Materials Research (LaMa)Justus Liebig University Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Peter R. Schreiner
- Institute of Organic ChemistryJustus Liebig University Heinrich-Buff-Ring 17 35392 Giessen Germany
- Center for Materials Research (LaMa)Justus Liebig University Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Hermann A. Wegner
- Institute of Organic ChemistryJustus Liebig University Heinrich-Buff-Ring 17 35392 Giessen Germany
- Center for Materials Research (LaMa)Justus Liebig University Heinrich-Buff-Ring 16 35392 Giessen Germany
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44
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Liu S, Zhou X, Zhang H, Ou H, Lam JWY, Liu Y, Shi L, Ding D, Tang BZ. Molecular Motion in Aggregates: Manipulating TICT for Boosting Photothermal Theranostics. J Am Chem Soc 2019; 141:5359-5368. [PMID: 30865831 DOI: 10.1021/jacs.8b13889] [Citation(s) in RCA: 317] [Impact Index Per Article: 63.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Planar donor and acceptor (D-A) conjugated structures are generally believed to be the standard for architecting highly efficient photothermal theranostic agents, in order to restrict intramolecular motions in aggregates (nanoparticles). However, other channels of extra nonradiative decay may be blocked. Now this challenge is addressed by proposing an "abnormal" strategy based on molecular motion in aggregates. Molecular rotors and bulky alkyl chains are grafted to the central D-A core to lower intermolecular interaction. The enhanced molecular motion favors the formation of a dark twisted intramolecular charge transfer state, whose nonradiative decay enhances the photothermal properties. Result shows that small-molecule NIRb14 with long alkyl chains branched at the second carbon exhibits enhanced photothermal properties compared with NIRb6, with short branched chains, and much higher than NIR6, with short linear chains, and the commercial gold nanorods. Both in vitro and in vivo experiments demonstrate that NIRb14 nanoparticles can be used as nanoagents for photoacoustic imaging-guided photothermal therapy. Moreover, charge reversal poly(β-amino ester) makes NIRb14 specifically accumulate at tumor sites. This study thus provides an excited molecular motion approach toward efficient phototheranostic agents.
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Affiliation(s)
- Shunjie Liu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, and Division of Biomedical Engineering , The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon , Hong Kong, China
| | - Xin Zhou
- Department of Medical Imaging , Shanxi Medical University , Taiyuan 030001 , China.,Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Sciences , Nankai University , Tianjin 300071 , China
| | - Haoke Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, and Division of Biomedical Engineering , The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon , Hong Kong, China
| | - Hanlin Ou
- Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Sciences , Nankai University , Tianjin 300071 , China.,State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, and College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, and Division of Biomedical Engineering , The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon , Hong Kong, China
| | - Yang Liu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, and College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Linqi Shi
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, and College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Dan Ding
- Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Sciences , Nankai University , Tianjin 300071 , China.,State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, and College of Chemistry , Nankai University , Tianjin 300071 , China.,Center for Aggregation-Induced Emission, SCUT-HKUST Joint Research Institute, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, and Division of Biomedical Engineering , The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon , Hong Kong, China.,Center for Aggregation-Induced Emission, SCUT-HKUST Joint Research Institute, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , China
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