Liquid-induced colour change in a beetle: The concept of a photonic cell

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Résumé

The structural colour of male Hoplia coerulea beetles is notable for changing from blue to green upon contact with water. In fact, reversible changes in both colour and fluorescence are induced in this beetle by various liquids, although the mechanism has never been fully explained. Changes enacted by water are much faster than those by ethanol, in spite of ethanols more rapid spread across the elytral surface. Moreover, the beetles photonic structure is enclosed by a thin scale envelope preventing direct contact with the liquid. Here, we note the presence of sodium, potassium and calcium salts in the scale material that mediate the penetration of liquid through putative micropores. The result leads to the novel concept of aphotonic cell: namely, a biocompatible photonic structure that is encased by a permeable envelope which mediates liquid-induced colour changes in that photonic structure. Engineered photonic cells dispersed in culture media could revolutionize the monitoring of cell-metabolism.

langueAnglais
Numéro d'article19322
Nombre de pages10
journalScientific Reports
Volume6
Les DOIs
étatPublié - 13 janv. 2016

Empreinte digitale

Photonics
Color
Liquids
Ethanol
Water
Metabolism
Contacts (fluid mechanics)
Culture Media
Potassium
Salts
Sodium
Fluorescence
Calcium
Monitoring

mots-clés

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    @article{c7a346d9c2bf4b8d976256b235bd95bb,
    title = "Liquid-induced colour change in a beetle: The concept of a photonic cell",
    abstract = "The structural colour of male Hoplia coerulea beetles is notable for changing from blue to green upon contact with water. In fact, reversible changes in both colour and fluorescence are induced in this beetle by various liquids, although the mechanism has never been fully explained. Changes enacted by water are much faster than those by ethanol, in spite of ethanols more rapid spread across the elytral surface. Moreover, the beetles photonic structure is enclosed by a thin scale envelope preventing direct contact with the liquid. Here, we note the presence of sodium, potassium and calcium salts in the scale material that mediate the penetration of liquid through putative micropores. The result leads to the novel concept of aphotonic cell: namely, a biocompatible photonic structure that is encased by a permeable envelope which mediates liquid-induced colour changes in that photonic structure. Engineered photonic cells dispersed in culture media could revolutionize the monitoring of cell-metabolism.",
    keywords = "Photonic bandgap materials, Photonic crystals, Color, porosity, Beetle, Beetle scale, Colorimetry",
    author = "S\{'e}bastien Mouchet and {Van Hooijdonk}, Eloise and Victoria Welch and Pierre Louette and Jean-Fran\{cc}ois Colomer and Su, {Bao Lian} and Olivier Deparis",
    year = "2016",
    month = "1",
    day = "13",
    doi = "10.1038/srep19322",
    language = "English",
    volume = "6",
    journal = "Scientific Reports",
    issn = "2045-2322",
    publisher = "Nature Publishing Group",

    }

    TY - JOUR

    T1 - Liquid-induced colour change in a beetle: The concept of a photonic cell

    AU - Mouchet,Sébastien

    AU - Van Hooijdonk,Eloise

    AU - Welch,Victoria

    AU - Louette,Pierre

    AU - Colomer,Jean-François

    AU - Su,Bao Lian

    AU - Deparis,Olivier

    PY - 2016/1/13

    Y1 - 2016/1/13

    N2 - The structural colour of male Hoplia coerulea beetles is notable for changing from blue to green upon contact with water. In fact, reversible changes in both colour and fluorescence are induced in this beetle by various liquids, although the mechanism has never been fully explained. Changes enacted by water are much faster than those by ethanol, in spite of ethanols more rapid spread across the elytral surface. Moreover, the beetles photonic structure is enclosed by a thin scale envelope preventing direct contact with the liquid. Here, we note the presence of sodium, potassium and calcium salts in the scale material that mediate the penetration of liquid through putative micropores. The result leads to the novel concept of aphotonic cell: namely, a biocompatible photonic structure that is encased by a permeable envelope which mediates liquid-induced colour changes in that photonic structure. Engineered photonic cells dispersed in culture media could revolutionize the monitoring of cell-metabolism.

    AB - The structural colour of male Hoplia coerulea beetles is notable for changing from blue to green upon contact with water. In fact, reversible changes in both colour and fluorescence are induced in this beetle by various liquids, although the mechanism has never been fully explained. Changes enacted by water are much faster than those by ethanol, in spite of ethanols more rapid spread across the elytral surface. Moreover, the beetles photonic structure is enclosed by a thin scale envelope preventing direct contact with the liquid. Here, we note the presence of sodium, potassium and calcium salts in the scale material that mediate the penetration of liquid through putative micropores. The result leads to the novel concept of aphotonic cell: namely, a biocompatible photonic structure that is encased by a permeable envelope which mediates liquid-induced colour changes in that photonic structure. Engineered photonic cells dispersed in culture media could revolutionize the monitoring of cell-metabolism.

    KW - Photonic bandgap materials

    KW - Photonic crystals

    KW - Color

    KW - porosity

    KW - Beetle

    KW - Beetle scale

    KW - Colorimetry

    UR - http://www.nature.com/articles/srep19322

    U2 - 10.1038/srep19322

    DO - 10.1038/srep19322

    M3 - Article

    VL - 6

    JO - Scientific Reports

    T2 - Scientific Reports

    JF - Scientific Reports

    SN - 2045-2322

    M1 - 19322

    ER -