Events

CBE/ENGR 225 Faculty Seminar: Vinodkumar Saranathan, National University of Singapore

Monday, May 9, 2016 at 2:00 pm in ESB 2001

Vinodkumar Saranathan

National University of Singapore 

Tuesday, May 9, 2016 - 2:00 pm

ESB, Room 2001

*Light refreshments will be provided*

 

    Biomimetic Potential of Self-assembled Biophotonic Nanostructures

 

Vivid, saturated structural colors provide a conspicuous and important aspect of the appearance of many animals1,2,3. In birds, butterflies, beetles, bees and arachnids, both iridescent and non-iridescent colors are produced by constructive interference from a staggering diversity of biophotonic nanostructures, which span the entire phase space of (micro-) phase separated morphologies commonly seen in polymer melts. These nanostructures appear to be self-assembled by either visco-elastic phase separation followed by a dynamic self-arrest or folded-membrane templates. I will summarize the structure, optical function, evolution, development, and biomimetic potential of these meso-scale biophotonic nanostructures, when defect-free, long-range synthetic fabrication of photonic morphologies remains challenging.

[1] Saranathan et al., Nano Letters (2015), 15, 3735–3742

[2] Saranathan et al., J. Roy. Soc. Interface (2012), 9, 2563–2580

 

[3] Saranathan et al., PNAS (2010), 107, 11676–11681                                                                                                                      Host: Dan Morse