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首页> 外文期刊>Advanced Functional Materials >Hybrid Photonic Nanostructures by In Vivo Incorporation of an Organic Fluorophore into Diatom Algae
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Hybrid Photonic Nanostructures by In Vivo Incorporation of an Organic Fluorophore into Diatom Algae

机译：体内将有机荧光团掺入硅藻中的杂化光子纳米结构。

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摘要

Biotechnological processes harnessing living organisms' metabolism are low-cost routes to nanostructured materials for applications in photonics, electronics, and nanomedicine. In the pursuit of photonic biohybrids, diatoms microalgae are attractive given the properties of the porous micro-to-nanoscale structures of the biosilica shells (frustules) they produce. The investigations have focused on in vivo incorporation of tailored molecular fluorophores into the frustules of Thalassiosira weissflogii diatoms, using a procedure that paves the way for easy biotechnological production of photonic nanostructures. The procedure ensures uniform staining of shells in the treated culture and permits the resulting biohybrid photonic nanostructures to be isolated with no damage to the dye and periodic biosilica network. Significantly, this approach ensures that light emission from the dye embedded in the isolated biohybrid silica is modulated by the silica's nanostructure, whereas no modulation of photoluminescence is observed upon grafting the fluorophore onto frustules by an in vitro approach based on surface chemistry. These results pave the way to the possibility of easy production of photonic nanostructures with tunable properties by simple feeding the diatoms algae with tailored photoactive molecules.
机译：利用生物的新陈代谢的生物技术过程是低成本途径，可用于光子学，电子学和纳米医学中的纳米结构材料。在追求光子生物杂交体时，硅藻微藻很有吸引力，因为它们产生的生物硅壳（壳层）具有多孔的微纳尺度结构。研究集中在使用特制的方法为光子纳米结构的简单生物技术生产铺平道路的过程中，将定制的分子荧光团体内掺入硅藻中。该程序可确保对处理过的培养物中的壳进行均匀染色，并允许分离得到的生物杂交光子纳米结构，而不会损坏染料和周期性的生物二氧化硅网络。重要的是，这种方法可确保通过嵌入的生物杂化二氧化硅中的染料发出的光受到二氧化硅的纳米结构的调节，而通过基于表面化学的体外方法将荧光团接枝到壳上时，则不会观察到光致发光的调节。这些结果为通过简单地向硅藻藻类喂入定制的光敏分子，为容易生产具有可调谐特性的光子纳米结构铺平了道路。

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  • 来源
    《Advanced Functional Materials》 |2018年第24期|1706214.1-1706214.9|共9页
  • 作者

    Ragni Roberta; Scotognella Francesco; Vona Danilo; Moretti Luca; Altamura Emiliano; Ceccone Giacomo; Mehn Dora; Cicco Stefania R.; Palumbo Fabio; Lanzani Guglielmo; Farinola Gianluca M.;

  • 作者单位

    Univ Bari Aldo Moro, Dipartimento Chim, Via Orabona 4, I-70126 Bari, Italy;

    Politecn Milan, Dipartimento Fis, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy;

    Univ Bari Aldo Moro, Dipartimento Chim, Via Orabona 4, I-70126 Bari, Italy;

    Politecn Milan, Dipartimento Fis, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy;

    Univ Bari Aldo Moro, Dipartimento Chim, Via Orabona 4, I-70126 Bari, Italy;

    European Commiss, Directorate Gen Joint Res Ctr, Directorate F Hlth Consumers & Reference Mat, Consumer Prod Safety Unit, Via E Fermi 2749,TP125, I-121027 Ispra, Italy;

    European Commiss, Directorate Gen Joint Res Ctr, Directorate F Hlth Consumers & Reference Mat, Consumer Prod Safety Unit, Via E Fermi 2749,TP125, I-121027 Ispra, Italy;

    CNR, ICCOM Bari, Dipartimento Chim, Via Orabona 4, I-70126 Bari, Italy;

    CNR, NANOTECH Bari, Dipartimento Chim, Via Orabona 4, I-70126 Bari, Italy;

    Politecn Milan, Dipartimento Fis, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy;

    Univ Bari Aldo Moro, Dipartimento Chim, Via Orabona 4, I-70126 Bari, Italy;

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  • 正文语种 eng
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  • 关键词

    biosilica; diatoms; molecular emitters; photoluminescence; photonic crystals;

    机译：生物硅;硅藻;分子发射体;光致发光;光子晶体;

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