Droplet formation of highly viscous Newtonian and non-Newtonian fluids in a microfluidic flow focusing device: scaling of droplet size and production frequency

C. Authesserre, F. Bottausci, G. Costa, M. Alessio, P.Y. Benhamou, B. Icard, F. Rivera
CEA-Leti Grenoble,

Keywords: microfluidics, droplet formation, non-Newtonian


Polymer particles are largely used for different applications such as chromatography columns, calibration standards, drug delivery or cell encapsulation1. For all these applications, high size monodispersity and production frequency are required. Moreover, the polymers are mainly highly viscous and so behave as non-Newtonian fluids. Microfluidic techniques allow to produce highly monodispersed droplets. Currently, droplet formation and break-up in multiphase flows microfluidic devices have been extensively investigated using air or low viscosity Newtonian fluids as the dispersed phase (