"Bottleneck effect" in two-dimensional microfluidics.
An anomalously long transient is needed to achieve a steady pressurization of a fluid when forced to flow through micronarrowed channels under constant mechanical driving. This phenomenon, known as the "bottleneck effect" is here revisited from a different perspective, by using confined displacements of interfacial fluids. Compared to standard microfluidics, such effect admits in this case a neat quantitative characterization, which reveals intrinsic material characteristics of flowing monolayers and permits to envisage strategies for their controlled micromanipulation.
SOC and SAM Group, Departament de Química Física and Institut de Nanociència i Nanotecnologia de la UB (IN2 UB), Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain.
Patricia
P
Burriel
Josep
J
Claret
Jordi
J
Ignés-Mullol
Francesc
F
Sagués
D004548:Elasticity; D046210:Microfluidic Analytical Techniques / Q000379:methods*; D008956:Models, Chemical; D019301:Oleic Acid / Q000737:chemistry; D009829:Oleic Acids; D014783:Viscosity
D009829:Oleic Acids; D019301:Oleic Acid; C011459:elaidic acid