How do cilia synchronise? Through hydrodynamics? Elasticity? Intracellular coupling? The mechanism seems to depend on whether these oscillators belong to same cell or not. In the latter case, we have shown that hydrodynamic interactions suffice; in the former, however, direct intracellular coupling between the flagella is necessary (see here, here, and here). How is this coupling acting? How can it promote opposite types of synchronisation? Our idea is that synchronisation states depend on the cell actively stiffening/relaxing the internal fibres joining the ciliary basal bodies. We explore this hypothesis in our new paper, recently accepted in J. Roy. Soc. Interface, looking at a minimal model of “cilia coupled by intracellular connections”. (ArXiv preprint. Full version and Supplementary Informations including animations). A big Thank to U. Melbourne and its Department of Mathematics and Statistics for hosting Marco during the final developments of this work!!
Last week I gave a couple of lectures at the Fluids CDT Summer School, organised by Eric Keaveny and Chiu Fan Lee. It was great fun (for me, at least), and I would have liked to be able to stay more than just one day… In any event, if you’re interested, you can find a PDF of my presentation on bacterial and eukaryotic motility (…as in swimming) here and here. Enjoy! …and please let me know your thoughts/comments!
Great day last Saturday! Our little contingent from Warwick Physics (Maria Chiara Roffin, Max Meissner, and myself) helped manning the WISB stand at the Cheltenham Science Festival. It was great fun, and a good chance to promote science to the general public!
Javiera Leemhuis, 3rd year undergraduate in Physics at Warwick, was awarded a £1000 URSS bursary for a 10-weeks URSS project this summer in collaboration with me and Kela Lushi, looking at the behaviour of microswimmers in complex confinement. Well done Javiera!
We’re delighted to share the news that we have received travel funds from the EPSRC Network Plus Emergence and Physics Far From Equilibrium to kickstart a collaboration with the groups of Dr. Giorgio Volpe (UCL, UK), Dr. Nuno Araújo (U. Lisbon, Portugal) and Dr. Idan Tuval (IMEDEA-UIB, Spain). The project, which will start later this year, focusses on understanding and controlling transport properties of binary suspensions where microscopic active particles interact with passive ones (cargoes).
Great news! Together with my friend (and host) Douglas Brumley, we have been awarded an Albert Shimmins International Fellowship from the University of Melbourne (AUD 15k) to help fund my 2-months visit to the Mathematics Department in Melbourne!
A Ph.D. studentship is available to join our group at Warwick! The project is a collaboration with Idan Tuval (IMEDEA, Spain) and Giorgio Volpe (UCL, UK). It will focus on dynamics and control of active matter suspensions, with a large experimental component (but most likely also some modelling/numerical simulations). To know more see here, and send us an email!
Iago has been awarded a Flexible Training Award (£690) from the MRC IBR DTP to fund his participation to the IFF Spring School 2018. Well done Iago!
Matteo had a great Ph.D. viva yesterday, and is finally Dr. Contino! (Ok, he still has some minor corrections… but still). He will now move to Oxford to work for a spin-off of the University of Oxford.
Well done Matteo and good luck for the future!