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Merck

"Bottleneck effect" in two-dimensional microfluidics.

Physical review letters (2008-06-04)
Patricia Burriel, Josep Claret, Jordi Ignés-Mullol, Francesc Sagués
ABSTRACT

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.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Elaidic acid, ≥99.0% (GC)
Supelco
Elaidic acid, analytical standard