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首页> 外文期刊>Advanced Functional Materials >Novel Quercetin Aggregation-Induced Emission Luminogen (AlEgen) with Excited-State Intramolecular Proton Transfer for In Vivo Bioimaging
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Novel Quercetin Aggregation-Induced Emission Luminogen (AlEgen) with Excited-State Intramolecular Proton Transfer for In Vivo Bioimaging

机译：激发态分子内质子转移的新型槲皮素聚集诱导的发光原（AlEgen）用于体内生物成像。

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摘要

Aggregation-induced emission luminogens (AIEgens) that undergo excited-state intramolecular proton transfer (ESIPT) have many applications in bioimaging since they have high quantum efficiency in the aggregated state and a low background signal in aqueous solutions because of their large Stokes shift. One disadvantage of many of the AIEgens with ESIPT that has been described so far is that they require time-consuming synthesis and the use of toxic reagents. Another disadvantage with most of these materials is that they are only used for bioimaging in cells and are unsuitable for in vivo bioimaging. Herein, a new AIEgen with ESIPT, quercetin (QC) is described, which is easily prepared from Sophora japonica. AIE is attributed to crystallization-promoted keto emission. The fluorescence is temperature dependent and shows strong resistance to photobleaching. QC AIEgen with ESIPT is shown to have excellent biocompatibility and is successfully used for bioimaging both in cellular cytoplasm and in vivo.
机译：经历激发态分子内质子转移（ESIPT）的聚集诱导发射发光剂（AIEgens）在生物成像中有许多应用，因为它们在聚集态具有高量子效率，并且由于其较大的斯托克斯位移而在水溶液中具有低背景信号。迄今为止已描述的许多具有ESIPT的AIEgen的缺点之一是它们需要耗时的合成和使用有毒的试剂。这些材料中的大多数的另一个缺点是它们仅用于细胞中的生物成像，而不适用于体内生物成像。在此，描述了一种新的带有ESIPT的槲皮素（QC）的AIEgen，可以容易地从槐花中制备。 AIE归因于结晶促进的酮释放。荧光是温度依赖性的，并且显示出对光漂白的强抵抗力。带有ESIPT的QC AIEgen被证明具有出色的生物相容性，已成功用于细胞质和体内的生物成像。

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  • 来源
    《Advanced Functional Materials》 |2018年第11期|1706196.1-1706196.7|共7页
  • 作者

    He Ting; Niu Na; Chen Zhijun; Li Shujun; Liu Shouxin; Li Jian;

  • 作者单位

    Northeast Forestry Univ, Minist Educ, Key Lab Biobased Mat Sci & Technol, Hexing Rd 26, Harbin 150040, Heilongjiang, Peoples R China;

    Northeast Forestry Univ, Minist Educ, Key Lab Biobased Mat Sci & Technol, Hexing Rd 26, Harbin 150040, Heilongjiang, Peoples R China;

    Northeast Forestry Univ, Minist Educ, Key Lab Biobased Mat Sci & Technol, Hexing Rd 26, Harbin 150040, Heilongjiang, Peoples R China;

    Northeast Forestry Univ, Minist Educ, Key Lab Biobased Mat Sci & Technol, Hexing Rd 26, Harbin 150040, Heilongjiang, Peoples R China;

    Northeast Forestry Univ, Minist Educ, Key Lab Biobased Mat Sci & Technol, Hexing Rd 26, Harbin 150040, Heilongjiang, Peoples R China;

    Northeast Forestry Univ, Minist Educ, Key Lab Biobased Mat Sci & Technol, Hexing Rd 26, Harbin 150040, Heilongjiang, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    aggregation-induced emission; cellular cytoplasm; excited-state intramolecular proton transfer; in vivo bioimaging; quercetin;

    机译：聚集诱导发射细胞质激发态分子内质子转移体内生物成像槲皮素;

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