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Controlled fluorescence in a beetle's photonic structure and its sensitivity to environmentally induced changes

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Abstract
The scales covering the elytra of the male Hoplia coerulea beetle contain fluorophores embedded within a porous photonic structure. The photonic structure controls both insect colour (reflected light) and fluorescence emission. Herein, the effects of water-induced changes on the fluorescence emission from the beetle were investigated. The fluorescence emission peak wavelength was observed to blue-shift on water immersion of the elytra whereas its reflectance peak wavelength was observed to red-shift. Time-resolved fluorescence measurements, together with optical simulations, confirmed that the radiative emission is controlled by a naturally engineered photonic bandgap while the elytra are in the dry state, whereas non-radiative relaxation pathways dominate the emission response of wet elytra.
Keywords
beetle scale, fluorescence, natural photonic crystal, photonic bandgap materials, structural colour, SELECTIVE VAPOR RESPONSE, MORPHO BUTTERFLY SCALES, SPONTANEOUS EMISSION, REFRACTIVE-INDEX, WING COLORATION, NIREUS GROUP, BIOINSPIRATION, INTERFERENCE, PAPILIONIDAE, CRYSTALS

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MLA
Mouchet, Sébastien R., et al. “Controlled Fluorescence in a Beetle’s Photonic Structure and Its Sensitivity to Environmentally Induced Changes.” PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, vol. 283, no. 1845, 2016.
APA
Mouchet, S. R., Lobet, M., Kolaric, B., Kaczmarek, A., Van Deun, R., Vukusic, P., … Van Hooijdonk, E. (2016). Controlled fluorescence in a beetle’s photonic structure and its sensitivity to environmentally induced changes. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, 283(1845).
Chicago author-date
Mouchet, Sébastien R, Michaël Lobet, Branko Kolaric, Anna Kaczmarek, Rik Van Deun, Peter Vukusic, Olivier Deparis, and Eloise Van Hooijdonk. 2016. “Controlled Fluorescence in a Beetle’s Photonic Structure and Its Sensitivity to Environmentally Induced Changes.” PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 283 (1845).
Chicago author-date (all authors)
Mouchet, Sébastien R, Michaël Lobet, Branko Kolaric, Anna Kaczmarek, Rik Van Deun, Peter Vukusic, Olivier Deparis, and Eloise Van Hooijdonk. 2016. “Controlled Fluorescence in a Beetle’s Photonic Structure and Its Sensitivity to Environmentally Induced Changes.” PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 283 (1845).
Vancouver
1.
Mouchet SR, Lobet M, Kolaric B, Kaczmarek A, Van Deun R, Vukusic P, et al. Controlled fluorescence in a beetle’s photonic structure and its sensitivity to environmentally induced changes. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES. 2016;283(1845).
IEEE
[1]
S. R. Mouchet et al., “Controlled fluorescence in a beetle’s photonic structure and its sensitivity to environmentally induced changes,” PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, vol. 283, no. 1845, 2016.
@article{8502482,
  abstract     = {The scales covering the elytra of the male Hoplia coerulea beetle contain fluorophores embedded within a porous photonic structure. The photonic structure controls both insect colour (reflected light) and fluorescence emission. Herein, the effects of water-induced changes on the fluorescence emission from the beetle were investigated. The fluorescence emission peak wavelength was observed to blue-shift on water immersion of the elytra whereas its reflectance peak wavelength was observed to red-shift. Time-resolved fluorescence measurements, together with optical simulations, confirmed that the radiative emission is controlled by a naturally engineered photonic bandgap while the elytra are in the dry state, whereas non-radiative relaxation pathways dominate the emission response of wet elytra.},
  articleno    = {20162334},
  author       = {Mouchet, Sébastien R and Lobet, Michaël and Kolaric, Branko and Kaczmarek, Anna and Van Deun, Rik and Vukusic, Peter and Deparis, Olivier and Van Hooijdonk, Eloise},
  issn         = {0962-8452},
  journal      = {PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES},
  keywords     = {beetle scale,fluorescence,natural photonic crystal,photonic bandgap materials,structural colour,SELECTIVE VAPOR RESPONSE,MORPHO BUTTERFLY SCALES,SPONTANEOUS EMISSION,REFRACTIVE-INDEX,WING COLORATION,NIREUS GROUP,BIOINSPIRATION,INTERFERENCE,PAPILIONIDAE,CRYSTALS},
  language     = {eng},
  number       = {1845},
  pages        = {9},
  title        = {Controlled fluorescence in a beetle's photonic structure and its sensitivity to environmentally induced changes},
  url          = {http://dx.doi.org/10.1098/rspb.2016.2334},
  volume       = {283},
  year         = {2016},
}

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