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首页> 外文期刊>Journal of Fluorescence >Acetylene-Substituted Two-Photon Absorbing Molecules With Rigid Elongated Pi-Conjugation: Synthesis, Spectroscopic Properties and Two-Photon Fluorescence Cell Imaging Applications
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Acetylene-Substituted Two-Photon Absorbing Molecules With Rigid Elongated Pi-Conjugation: Synthesis, Spectroscopic Properties and Two-Photon Fluorescence Cell Imaging Applications

机译：刚性延长的π共轭取代乙炔的双光子吸收分子：合成，光谱性质和双光子荧光细胞成像应用。

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摘要

Two asymmetrical molecules with substituted acetylene as central rigid elongated conjugation are reported as potential chromophores for two-photon microscopic imaging. These molecules consist of a typical D–π–A structure, have different donors (D), the same π-conjugated center (π) and the same acceptor (A). Structural characterization and spectroscopic properties, including single-photon (linear) absorption, quantum yields, single-photon fluorescence, and two-photon absorption spectra, were studied in solvents with different polarity. These acetylene-substituted molecules were found to have high two-photon absorption cross-sections (for example, 690 GM for molecule 1 in toluene), which were determined by a two-photon induced fluorescence method using a femtosecond Ti: sapphire laser as excitation source. Single- and two-photon cellular imaging experiments demonstrate that the substituted acetylene derivatives could be one kind of promising two-photon fluorescence probes for cellular imaging.
机译：据报道，两个带有取代乙炔的不对称分子作为中心刚性细长共轭物，是双光子显微成像的潜在发色团。这些分子由典型的D–π–A结构组成，具有不同的供体（D），相同的π共轭中心（π）和相同的受体（A）。在不同极性的溶剂中研究了结构表征和光谱性质，包括单光子（线性）吸收，量子产率，单光子荧光和双光子吸收光谱。发现这些乙炔取代的分子具有较高的双光子吸收截面（例如，甲苯中的分子1的分子具有690 GM），这是通过使用飞秒Ti：蓝宝石激光作为激发的双光子诱导荧光法确定的资源。单光子和双光子细胞成像实验表明，取代的乙炔衍生物可能是一种有希望的细胞成像双光子荧光探针。

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  • 来源
    《Journal of Fluorescence》 |2007年第5期|573-579|共7页
  • 作者

    Bo Liu; Hai-Li Zhang; Jun Liu; Zhen-Li Huang; Yuan-Di Zhao; Qing-Ming Luo;

  • 作者单位

    Key Laboratory of Biomedical Photonics of Ministry of Education Huazhong University of Science and Technology Wuhan 430074 People’s Republic of China;

    Key Laboratory of Biomedical Photonics of Ministry of Education Huazhong University of Science and Technology Wuhan 430074 People’s Republic of China;

    Key Laboratory of Biomedical Photonics of Ministry of Education Huazhong University of Science and Technology Wuhan 430074 People’s Republic of China;

    Key Laboratory of Biomedical Photonics of Ministry of Education Huazhong University of Science and Technology Wuhan 430074 People’s Republic of China;

    Key Laboratory of Biomedical Photonics of Ministry of Education Huazhong University of Science and Technology Wuhan 430074 People’s Republic of China;

    Key Laboratory of Biomedical Photonics of Ministry of Education Huazhong University of Science and Technology Wuhan 430074 People’s Republic of China;

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  • 正文语种 eng
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  • 关键词

    Spectroscopic property; Structure-property relationship; Substituted acetylene; Two-photon absorption; Two-photon microscopic imaging;

    机译：光谱性质;结构-性质关系;取代乙炔;双光子吸收;双光子显微成像;

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