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SUMMARY:IMX Seminar Series - Color with a twist: self-assembly of cellulos
 e nanocrystals for photonic applications
DTSTART:20231009T131500
DTEND:20231009T141500
DTSTAMP:20260427T220756Z
UID:28532ef0b706b07643e88473fda20ba75c24a3d97ac38c1c05ee8632
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Silvia Vignolini\, Max Planck Institute of Colloids and 
 Interfaces\, Germany\nThe most brilliant colours in nature are obtained by
  structuring transparent materials on the scale of the wavelength of visib
 le light. By controlling/designing the dimensions of such nanostructures\,
  it is possible to achieve extremely intense colourations over the entire 
 visible spectrum without using pigments or colorants. Colour obtained thro
 ugh structure\, namely structural colour\, is incredibly widespread in the
  plant kingdom. Such natural photonic nanostructures are generally synthes
 ised in ambient conditions using the most abundant biopolymer on the plane
 t: cellulose. Given these limitations\, an amazing range of optical struct
 ures exists: from very ordered photonic structures to partially disordered
  to completely random ones. Here\, I will introduce some striking examples
  of natural photonic structures and review our recent advances to fabricat
 e bio-mimetic photonic structures using the same material as nature. Devel
 oping biomimetic structures with cellulose enables us to fabricate novel p
 hotonic materials using low-cost polymers in ambient conditions. Important
 ly\, it also allows us to understand the biological processes at work duri
 ng the growth of these structures in plants.\nhttps://www.mpikg.mpg.de/sbm
 \nhttps://www.ch.cam.ac.uk/group/vignolini\nBio: Silvia Vignolini is the D
 irector of the Sustainable and Bio-inspired Materials Department at the Ma
 x Plank for Colloid and Interfaces in Potsdam and a University Professor i
 n Sustainability and Bio-inspired materials at the Chemistry Department in
  Cambridge. She studied Physics at the University of Florence\, Italy. In 
 2009\, she was awarded a PhD in Solid State Physics at the European Labora
 tory for non-Linear Spectroscopy and the Physics Department at the Univers
 ity of Florence. In 2010\, she moved to Cambridge as a post-doctoral resea
 rch associate working in the Cavendish Laboratory and the Plant Science De
 partment. Her research interest lies at the interface of chemistry\, soft-
 matter physics\, optics\, and biology. In particular\, her research focuse
 s on the study of how biopolymers are assembled into complex architectures
  within living organisms and how they can be exploited to fabricate a sust
 ainable functional materials.
LOCATION:https://epfl.zoom.us/j/68669233781
STATUS:CONFIRMED
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