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Yusuf Hamied Department of Chemistry


Gea originally comes from Eindhoven, in The Netherlands. She received her BSc and MSc in Molecular Life Sciences, a study programme aimed at multidisciplinary research, from Wageningen University. She then continued to do a PhD in the Bio-Inspired Photonics group in Cambridge, under the supervision of Dr. Silvia Vignolini. Currently, she is in the third year of her PhD research, where she is working on photonic structures in living systems. She hereby specialises in the appearance of structural colour in bacteria, with additional work on photonic structures in plants. Furthermore, she works on electron microscope imaging of biological tissue ((cryogenic) SEM, embedding and microtoming for TEM).

Figure 1: On the left is a structurally coloured bacteria colony on the left. The image is taken using dark field light microscopy. On the right is a cryogenic SEM image of the corresponding photonic structure: a hexagonally packed crystal lattice of bacteria.


Complex photonic response reveals three-dimensional self-organization of structural coloured bacterial colonies
L Schertel, GT van de Kerkhof, G Jacucci, L Catón, Y Ogawa, BD Wilts, CJ Ingham, S Vignolini, VE Johansen
– Journal of the Royal Society Interface
Disordered wax platelets on Tradescantia pallida leaves create golden shine.
GT van de Kerkhof, L Schertel, R Poon, G Jacucci, B Glover, S Vignolini
– Faraday Discussions
Visual appearance of chiral nematic cellulose-based photonic films: angular and polarization independent color response with a twist
CLC Chan, MM Bay, G Jacucci, V Roberto, CA Williams, GT van de Kerkhof, RM Parker, K Vynck, B Frka-Petesic, S Vignolini
– Advanced Materials
Laser Speckle Strain Imaging reveals the origin of delayed fracture in a soft solid
HM van der Kooij, S Dussi, GT van de Kerkhof, RAM Frijns, J van der Gucht, J Sprakel
– Science advances
A mechanistic view of drying suspension droplets
HM van der Kooij, GT van de Kerkhof, J Sprakel
– Soft Matter

Research Group

Telephone number

01223 336410 (shared)

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