From insect scales to sensor design: Modelling the mechanochromic properties of bicontinuous cubic structures

Xia Wu, Duancheng Ma, Philip Eisenlohr, Dierk Raabe, Helge Otto Fabritius

    Research output: Contribution to journalArticle

    • 2 Citations

    Abstract

    Many of the three-dimensional photonic crystals occurring in the scales of insects have bicontinuous cubic structures. Their optical properties have been studied extensively, however little is known about their mechanical properties and their optical response under deformation. We demonstrated a mechanochromic effect by deforming the scales of a weevil and calculated the elastic, optical and mechanochromic (assuming homogeneous deformation) properties of the three types of bicontinuous cubic structures occurring in nature: P-structure (primitive), G-structure (gyroid) and D-structure (diamond). The results show that all investigated properties of these three structure types strongly depend on their geometry, structural parameters such as volume fractions of the two constituting phases and the directions of the incident light or applied stress, respectively. Interestingly, the mechanochromic simulation results predict that these structures may show blue-shift or even red-shift under compression along certain directions. Our results provide design guidelines for mechanochromic sensing materials operating in the elastic regime, including parameters such as sensitivity and direction of spectral shift.

    Original languageEnglish (US)
    Article number045001
    JournalBioinspiration and Biomimetics
    Volume11
    Issue number4
    DOIs
    StatePublished - Jun 13 2016

    Profile

    Optics and Photonics
    Weevils
    Hemiptera
    Diamond
    Carbamyl Phosphate
    Photonic crystals
    Diamonds
    Volume fraction
    Optical properties
    Mechanical properties
    Geometry
    Sensors
    Iduronidase
    Artificial Organs
    Acacia
    Abdominal Muscles
    Addison Disease
    Traffic Accidents

    Keywords

    • bicontinuous cubic structures
    • insects
    • mechanochromic material
    • photonic crystals

    ASJC Scopus subject areas

    • Biochemistry
    • Biophysics
    • Biotechnology
    • Molecular Medicine
    • Engineering (miscellaneous)

    Cite this

    From insect scales to sensor design : Modelling the mechanochromic properties of bicontinuous cubic structures. / Wu, Xia; Ma, Duancheng; Eisenlohr, Philip; Raabe, Dierk; Fabritius, Helge Otto.

    In: Bioinspiration and Biomimetics, Vol. 11, No. 4, 045001, 13.06.2016.

    Research output: Contribution to journalArticle

    Wu, Xia; Ma, Duancheng; Eisenlohr, Philip; Raabe, Dierk; Fabritius, Helge Otto / From insect scales to sensor design : Modelling the mechanochromic properties of bicontinuous cubic structures.

    In: Bioinspiration and Biomimetics, Vol. 11, No. 4, 045001, 13.06.2016.

    Research output: Contribution to journalArticle

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