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

Research output: Contribution to journalArticle

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.

Original languageEnglish
Article number19322
Number of pages10
JournalScientific Reports
Volume6
DOIs
Publication statusPublished - 13 Jan 2016

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

Keywords

  • Photonic bandgap materials
  • Photonic crystals
  • Color
  • porosity
  • Beetle
  • Beetle scale
  • Colorimetry

Cite this

@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",

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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

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DO - 10.1038/srep19322

M3 - Article

VL - 6

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

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