Electrokinetic scanning probe for biomolecular analysis
Nadya Ostromohov, Moran Bercovici, et al.
MicroTAS 2017
We experimentally demonstrate the phenomenon of electroosmotic dipole flow that occurs around a localized surface charge region under the application of an external electric field in a Hele-Shaw cell. We use localized deposition of polyelectrolytes to create well-controlled surface charge variations, and show that, for a disk-shaped spot, the internal pressure distribution that arises results in uniform flow within the spot and dipole flow around it. We further demonstrate the superposition of surface charge spots to create complex flow patterns, without the use of physical walls.
Nadya Ostromohov, Moran Bercovici, et al.
MicroTAS 2017
Ali Oskooei, Govind V. Kaigala
IEEE T-BME
Federico Paratore, Vesna Bacheva, et al.
Nature Reviews Chemistry
Philippe M. Nicollier, Aaron D. Ratschow, et al.
Journal of Physical Chemistry Letters