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NanoPhotonics Centre

 
Pollia bunch

An overview of the group's research into biomimetics.

Biomimetics combines the study of natural materials with the adoption of design principles to improve what we can construct. We study the optical biomimetics of plants and insects, for intriguing photonic effects.

 

Butterflymultilayer structural colour in microdishes
This colourful butterfly combines green and blue reflectors on its wing scales using micron-scale hemispherical dishes coated with layers. We adopted this approach to make unusual stuctural colours from multilayers in microdishes.

 

Poliairidescent fruit
This fruit has a metallic blue/purple hue created from not from pigments by multilayers of cellulose in its surface layers. Even when dry and 70 years old, these fruit sparkle. The optical scattering inside such structures is highly complex, and we study how the structure has been optimised to give a cool blue.

 

Buttercupscatter and reflection of buttercups
We study how different colours of light are scattered from the petals of buttercups and show that they are optimised for the UV eyes of insects, not ourselves.

  Squidlearning from squids to make reflectin colours
Squids can use and change colours at will. Some of their tricks use a protein called reflectin which can stack into multilayers that reflect specific colours, a structural-based colour. We worked with the Cambridge iGEM team to express this protein in bacteria, and explore the photonic effects.

References

[3] “Pointillist structural colour in Pollia condensata fruit”, PNAS (2012)

[2] “Mimicry of Papilio blumei’s colourful wing scale structure”, Nature Nanotechnology 5, 511 (2010)

[1] “Directional Scattering from…: how the buttercup lights up your chin”, J.R.Soc.Interface (2011); DOI: 10.1098/rsif.2011.0759

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Latest news

NanoPhotonics @ Femincam

29 September 2023

PhD students from the NanoPhotonics Centre have attended Femincam, a one-day conference celebrating emerging women in science and leaders in electronic materials. During the event Sara Rocchetti also presented her poster on “Amplified plasmonic forces from DNA-origami scaffolded single dyes in nanogaps”.

ICAVS flash presentations prizes awarded to Marika and Yuling!

4 September 2023

A number of group members recently attended ICAVS12 in Krakow. Congratulations to Yuling who won the prize for the best flash presentation and to Marika for winning the best flash presentation audience award!

Sara Rocchetti - Best poster at Chemical and NanoScience symposium

17 May 2023

Sara Rocchetti won the best poster award at the 10th Chemical and NanoScience symposium Newcastle (CNSN-X) with her work on DNA origami and nanophotonics. Well done!