This image for day 204 of #LMB365 is made with micropatterning, the process whereby any protein, in this case a fluorescent protein, can be printed onto a glass coverslip. Each logo in this image is about 100 micrometres across. Emmanuel Derivery’s lab uses these micropatterns (not in the shape of the LMB logo!) to control the precise location of proteins both on the inside and outside of cells.