Hydrophytes and reflective nature in materials http://gyti.techpedia.in/files/GYTI-BOOK-color.pdf
The structure of seedpod, petal and leaf of Canna indica L. was biomimicked using various polymers and then studied for their wettability characteristics. The biomimicked polymer surfaces were found to exhibit superhydrophobicity. The superhydrophobic nature of the seedpod with high aspect ratio and hierarchical patterns having much larger surface area were not only preserved but also slightly improved in the RF gel replica. The petal and leaf biomimicked polymer surfaces with multi-scale surface patterns were further studied for their antireflective properties. The biomimicked high aspect ratio micron features as found in Canna indica petal and leaf demonstrated near zero reflection for a wide range of wavelength and incidence angle of light. This property may be used to prepare solar cells with higher efficiency. Also, the fabrication of micron size features is easier than sub-micron. The fabrication of superhydrophobic as well as antireflective polymer surface using this low cost simple biomimicking technique opens possibilities of use in a variety of applications like solar cells, self-cleaning materials, microfluidics and energy storage devices.
Link: The biomimicked high aspect ratio micron features as found in Canna indica petal and leaf demonstrated near zero reflection for a wide range of wavelength and incidence angle of light. Structural patterns were mimicked into a number of polymers like PDMS and an organic (resorcinol formaldehyde) gel and found that these biomimicked polymer surfaces also exhibit superhydrophobic property http://gyti.techpedia.in/files/GYTI-BOOK-color.pdf
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