Monodisperse micro-drops have been created successfully in T-shaped microchannels fabricated with the 'modified’ excimer laser-LIGA technique. This technique eliminates the surface wetting problems and the occurrence of a deeper ablation path which happened during the joining of different section of the microchannel with the dynamic laser ablation mode. The experimental study on the shear-induced drop formation from T-shaped microchannels shows that the drop size decreases with increasing shear and that a maximum drop productivity was observed depending on the value of the dispersed phase flowrate used.
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