Problem Statement:

Hydrophytes and reflective nature in materials http://gyti.techpedia.in/files/GYTI-BOOK-color.pdf

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Detail:

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.

Knowledge Provider / Innovator:
Address: IIT
City: Gandhinagar
State: Gujarat
PIN Code

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Email: srinadh.mattaparthi@iitgn.ac.in
Contact No:

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
Manufacturing Capacity: a) Turnkey solution, b) Design Support, c) Sub-contracting, d) Licensing, e) Franchising, f) Any other:
Photo Links:

• https://drive.google.com/open?id=1x_YNnTasehENQG3sqwaexNhG4Ux17v8T

Problem Scale: 1) India 2) Around the world
Blog Link 5:

• 
  http://honeybee.org/honeybee_detailed.php?page=134&search_case=
• 
  http://gyti.techpedia.in/project-detail/direct-recycling-of-polystyrene-waste-
• using-citrus-peel-waste-extract/11800

News Link 5:

•  Smyth K, Paxon A, Kwon H, et al. Dynamic wetting on superhydrophobic
  surfaces:
• droplet impact and wetting hysteresis.
  In:
• 2010 12th IEEE intersociety conference on thermal and thermomechanical phenomena in electronic systems, Las Vegas, Nevada, 2–5 June 2010, pp. 1–8. Piscataway,
  NJ:
• IEEE  Tang Y, Zhang Q, Zhan X, et al. Superhydrophobic and antiicing properties at overcooled temperature of a fluorinated hybrid surface prepared via a sol-gel process. Soft Matter 2015; 11(22): 4540–4550