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High-throughput and contact-free trapping of single nano-objects in an aqueous solution is of substantial interest for fundamental and applied research. One of the several trapping methods is geometry-induced electrostatic (GIE) trapping that allows for passive spatial confinement of single nanoparticles in nanofluidic devices. In aqueous environments (pH>2) glass and silicon dioxide surfaces acquire...
Geometry-induced electrostatic (GIE) trapping is a novel contact-free method of stably confining charged nano-objects in solution. This method has proven to be very effective in trapping sub-100nm objects and is based only on the electrostatic repulsion between the charged object and the device surfaces, without requiring an external control or power. We report on fabricating a GIE trapping device...
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