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首页> 外文期刊>Applied optics >Tapered Mach-Zehnder interferometer based on PbS quantum dots modified by polymers for copper ion sensing
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Tapered Mach-Zehnder interferometer based on PbS quantum dots modified by polymers for copper ion sensing

机译:基于PBS量子点的锥形马赫Zehnder干涉仪通过用于铜离子传感的聚合物改性

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摘要

An optical fiber interferometer coated with PbS quantum dots (QDs) was developed for copper ion (Cu2+) detection. The QDs were modified by a multifunctional copolymer that enabled QD surface ligation, dispersion, and coordination with Cu2+. Cu2+ coordination with the polymer induced changes in the surrounding refractive index of the interferometer. The sensor was highly selective for Cu2+ and showed a linear detection range of 0-1000 mu M with a limit of detection of 2.20 mu M in both aqueous and biological solutions. (C) 2021 Optical Society of America
机译:研制了一种用于铜离子检测的PbS量子点光纤干涉仪。量子点由一种多功能共聚物进行修饰,该共聚物使量子点能够与Cu2+进行表面连接、分散和配位。Cu2+与聚合物的配位引起干涉仪周围折射率的变化。该传感器对Cu2+具有高度选择性,在水溶液和生物溶液中的线性检测范围为0-1000μM,检测限为2.20μM。(2021)美国光学学会

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  • 来源
    《Applied optics》 |2021年第16期|共7页
  • 作者单位

    Shanghai Univ Key Lab Specialty Fiber Opt &

    Opt Access Networks Joint Int Res Lab Specialty Fiber Opt &

    Adv Commu Shanghai Inst Adv Commun &

    Data Sci Sch Commun &

    Shanghai 200444 Peoples R China;

    Shanghai Univ Key Lab Specialty Fiber Opt &

    Opt Access Networks Joint Int Res Lab Specialty Fiber Opt &

    Adv Commu Shanghai Inst Adv Commun &

    Data Sci Sch Commun &

    Shanghai 200444 Peoples R China;

    Shanghai Univ Key Lab Specialty Fiber Opt &

    Opt Access Networks Joint Int Res Lab Specialty Fiber Opt &

    Adv Commu Shanghai Inst Adv Commun &

    Data Sci Sch Commun &

    Shanghai 200444 Peoples R China;

    Shanghai Univ Key Lab Specialty Fiber Opt &

    Opt Access Networks Joint Int Res Lab Specialty Fiber Opt &

    Adv Commu Shanghai Inst Adv Commun &

    Data Sci Sch Commun &

    Shanghai 200444 Peoples R China;

    Ruijinerlu Community Hlth Serv Ctr Huangpu Dist Shanghai 200025 Peoples R China;

    Shanghai Univ Coll Environm &

    Chem Engn Inst Nanochem &

    Nanobiol Shanghai 200444 Peoples R China;

    Univ Arizona Coll Opt Sci Tucson AZ 85721 USA;

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  • 正文语种 eng
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