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首页> 外文期刊>Advanced Functional Materials >Molecular Engineering of Efficient Singlet Oxygen Generators with Near-Infrared AIE Features for Mitochondrial Targeted Photodynamic Therapy
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Molecular Engineering of Efficient Singlet Oxygen Generators with Near-Infrared AIE Features for Mitochondrial Targeted Photodynamic Therapy

机译:具有近红外AIE特征的高效单线氧发电机的分子工程,用于线粒体靶向光动力治疗

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摘要

Aggregation-caused fluorescence quenching with insufficient production of reactive oxygen species (ROS) has limited the application of photosensitizers (PSs) in fluorescence-imaging-guided photodynamic therapy (PDT). Aggregation-induced emission PSs (AIE-PSs) exhibit enhanced fluorescence intensity and a high efficiency of ROS generation in the aggregation state, which provides an opportunity to solve the above problems. Herein, a series of AIE-PSs are successfully designed and synthesized by adjusting the D-A intensity through molecular engineering. The photophysical properties and theoretical calculations prove that the synergistic effect of 3,4-ethylenedioxythiophene and quinolinium increases the intramolecular charge transfer effect (ICT) of the whole molecule and promotes the intersystem crossing (ISC) from the lowest excited singlet state (S-1) to the lowest triplet state (T-1). Among these AIE-PSs, the optimal AIE-PS (TPA-DT-Qy) exhibits the highest generation yield of O-1(2) (5.3-fold of Rose Bengal). Further PDT experiments show that the TPA-DT-Qy has a highly efficient photodynamic ablation of breast cancer cells (MCF-7 and MDA-MB-231) under white light irradiation. Moreover, the photodynamic antibacterial study indicates that TPA-DT-Qy has the discrimination and excellent photodynamic inactivation of S. aureus. This work provides a feasible strategy for the molecular engineering of novel AIE-PSs to improve the development of fluorescence-imaging-guided PDT.
机译:聚集引起的荧光猝灭与反应性氧(ROS)不足(ROS)限制了光敏剂(PSS)在荧光显影引导的光动力疗法(PDT)中的应用。聚集诱导的发射PSS(AIE-PSS)表现出增强的荧光强度和聚集状态中的ROS产生的高效率,这提供了解决上述问题的机会。这里,通过通过分子工程调节D-A强度,成功设计和合成了一系列AIE-PSS。光物理性质和理论计算证明,3,4-亚乙二氧基噻吩和喹啉的协同作用增加了整个分子的分子内电荷转移效果(ICT),并从最低激发单态状态促进了跨越式交叉(ISC)(S-1 )到最低三重态(T-1)。在这些AIE-PS中,最佳AIE-PS(TPA-DT-QY)表现出O-1(2)的最高产生产率(玫瑰孟加拉的5.3倍)。此外PDT实验表明,TPA-DT-QY在白光照射下具有高效的光动力消融乳腺癌细胞(MCF-7和MB-231)。此外,光动力学抗菌研究表明,TPA-DT-QY具有鉴别和优异的光动力灭活S.UUREUS。这项工作为新型AIE-PSS的分子工程提供了一种可行的策略,以改善荧光显像引导PDT的发育。

著录项

  • 来源
    《Advanced Functional Materials》 |2021年第36期|2104026.1-2104026.11|共11页
  • 作者单位

    Hubei Univ Coll Chem & Chem Engn Minist Educ Key Lab Synth & Applicat Organ Funct Collaborat Innovat Ctr Adv Organ Chem Mat Coconst Youyi Rd 368 Wuhan 430062 Hubei Peoples R China;

    Tongji Univ Sch Med Shanghai East Hosp Translat Med Ctr Stem Cell Therapy & Inst Regener Shanghai 200123 Peoples R China;

    Hubei Univ Coll Life Sci Wuhan 430062 Peoples R China;

    Hubei Univ Coll Chem & Chem Engn Minist Educ Key Lab Synth & Applicat Organ Funct Collaborat Innovat Ctr Adv Organ Chem Mat Coconst Youyi Rd 368 Wuhan 430062 Hubei Peoples R China;

    Tongji Univ Sch Med Shanghai East Hosp Translat Med Ctr Stem Cell Therapy & Inst Regener Shanghai 200123 Peoples R China;

    Hubei Univ Coll Chem & Chem Engn Minist Educ Key Lab Synth & Applicat Organ Funct Collaborat Innovat Ctr Adv Organ Chem Mat Coconst Youyi Rd 368 Wuhan 430062 Hubei Peoples R China;

    Hubei Univ Coll Chem & Chem Engn Minist Educ Key Lab Synth & Applicat Organ Funct Collaborat Innovat Ctr Adv Organ Chem Mat Coconst Youyi Rd 368 Wuhan 430062 Hubei Peoples R China;

    Hubei Univ Coll Chem & Chem Engn Minist Educ Key Lab Synth & Applicat Organ Funct Collaborat Innovat Ctr Adv Organ Chem Mat Coconst Youyi Rd 368 Wuhan 430062 Hubei Peoples R China;

    Hubei Univ Coll Chem & Chem Engn Minist Educ Key Lab Synth & Applicat Organ Funct Collaborat Innovat Ctr Adv Organ Chem Mat Coconst Youyi Rd 368 Wuhan 430062 Hubei Peoples R China;

    Tongji Univ Sch Med Shanghai East Hosp Translat Med Ctr Stem Cell Therapy & Inst Regener Shanghai 200123 Peoples R China;

    Hubei Univ Coll Chem & Chem Engn Minist Educ Key Lab Synth & Applicat Organ Funct Collaborat Innovat Ctr Adv Organ Chem Mat Coconst Youyi Rd 368 Wuhan 430062 Hubei Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    aggregation-induced emission; mitochondrial targeting; near-infrared emission; photodynamic antibacterial therapies; photodynamic breast cancer therapies;

    机译:聚集诱导的发射;线粒体靶向;近红外发射;光动力抗菌疗法;光动力乳腺癌疗法;

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