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Na W, An L, Wu Q, Cai K, Ou C, Zhuang W. Sulfone/Carbonyl-Based Donor-Acceptor Fluorescent Dyes: Synthesis, Structures, Photophysical Properties and Cell Imaging. Chemistry 2023; 29:e202301997. [PMID: 37658616 DOI: 10.1002/chem.202301997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/31/2023] [Accepted: 08/31/2023] [Indexed: 09/03/2023]
Abstract
Electron-accepting units play vital roles in constructing donor-acceptor (D-A) conjugated organic optoelectronic materials; the electronic structures and functions of the acceptors need to be carefully unveiled to controllably tailor the optoelectronic properties. We have synthesized two D-A conjugated organic fluorophores, TPA-SO and TPA-CO, with similar molecular skeletons based on sulfone- or carbonyl-containing polycyclic aromatic acceptors. Both TPA-SO and TPA-CO display obvious solvent polarity-dependent photophysical properties and large Stokes shift of over 100 nm for strong intramolecular charge transfer processes. Experimental evidence indicates that the sulfone group in TPA-SO merely serves as a strong electron-withdrawing unit. TPA-SO shows yellowish-green emission with a peak at 542 nm and an absolute photoluminescence quantum yield (PLQY) of 98 % in solution, whereas the carbonyl group in TPA-CO can act as both an electron-withdrawing unit and spin transition convertor, so TPA-CO displays red emission with a low absolute PLQY of 0.32 % in solution. Impressively, upon going from solution to aggregate state, TPA-SO nanoparticles keep a high PLQY of 9.5 % and moderate biocompatibility, thus they are good nano-agents for cellular fluorescence imaging. The results reveal that the inherent acceptor characteristic acts as a crucial effect in the photophysical properties and applications of the organic fluorophores.
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Affiliation(s)
- Weidan Na
- College of Chemistry and Chemical Engineering, Xuzhou University of Technology, Xuzhou, 221111, P. R. China
| | - Lei An
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China
| | - Qiong Wu
- College of Chemistry and Chemical Engineering, Xuzhou University of Technology, Xuzhou, 221111, P. R. China
| | - Keying Cai
- College of Chemistry and Chemical Engineering, Xuzhou University of Technology, Xuzhou, 221111, P. R. China
| | - Changjin Ou
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China
| | - Wenchang Zhuang
- College of Chemistry and Chemical Engineering, Xuzhou University of Technology, Xuzhou, 221111, P. R. China
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Zheng Q, Duan Z, Zhang Y, Huang X, Xiong X, Zhang A, Chang K, Li Q. Conjugated Polymeric Materials in Biological Imaging and Cancer Therapy. Molecules 2023; 28:5091. [PMID: 37446753 DOI: 10.3390/molecules28135091] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/22/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Conjugated polymers (CPs) have attracted much attention in the fields of chemistry, medicine, life science, and material science. Researchers have carried out a series of innovative researches and have made significant research progress regarding the unique photochemical and photophysical properties of CPs, expanding the application range of polymers. CPs are polymers formed by the conjugation of multiple repeating light-emitting units. Through precise control of their structure, functional molecules with different properties can be obtained. Fluorescence probes with different absorption and emission wavelengths can be obtained by changing the main chain structure. By modifying the side chain structure with water-soluble groups or selective recognition molecules, electrostatic interaction or specific binding with specific targets can be achieved; subsequently, the purpose of selective recognition can be achieved. This article reviews the research work of CPs in cell imaging, tumor diagnosis, and treatment in recent years, summarizes the latest progress in the application of CPs in imaging, tumor diagnosis, and treatment, and discusses the future development direction of CPs in cell imaging, tumor diagnosis, and treatment.
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Affiliation(s)
- Qinbin Zheng
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Medicine, Linyi University, Linyi 276005, China
- College of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, China
| | - Zhuli Duan
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Medicine, Linyi University, Linyi 276005, China
- College of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, China
| | - Ying Zhang
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Medicine, Linyi University, Linyi 276005, China
- College of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, China
| | - Xinqi Huang
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Medicine, Linyi University, Linyi 276005, China
- College of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, China
| | - Xuefan Xiong
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Medicine, Linyi University, Linyi 276005, China
- College of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, China
| | - Ang Zhang
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Medicine, Linyi University, Linyi 276005, China
| | - Kaiwen Chang
- Key Laboratory of Medical Molecular Probes, Department of Medical Chemistry, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - Qiong Li
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Medicine, Linyi University, Linyi 276005, China
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