electrical double layer – TechConnect Briefs

Static and Dynamic Properties of the Electrical Double Layer Near Amorphous Silica: Relevance for Device Design

Shi B., Shin Y.K., Zhang H., Hassanali A., Shin Y.K., Knight C., Singer S.J., Ohio State University, US

Amorphous silica (“glass”) is commonly used to fabricate micro- and nano-fluidic devices. Using an atomistic model, we have studied the static and dynamic properties of the electrical double layer near the water/amorphous silica interface. The [...]

Electric Double Layer Simulation on Transient State for Sensitivity Enhancement of Affinity-Based Biosensor

Woo J-M, Kim S-H, Park Y.J., Seoul National University, KR

We have presented a numerical simulation for the affinity-based electrical biosensor system on the steady and transient state. Considering the screening length in the solutions, the solution with low ion concentration can be better measurement [...]

DNA Extraction with Parallel Electrodes on Microfluidic System

Parng S.H., Shia T.K., Yang H.J., Kuo C.H., Microsystem Technology Common Laboratory, TW

DNA trapping was demonstrated between an electrical field across two parallel integrated electrodes on chip fabricated by the MEMS techniques. The method to release the trapped DNA molecules using reversed voltage control electrical field was [...]

Simulation of Electrically-Excited Flows in Microchannels for Mixing Application

Meisel I., Ehrhard P., Forschungszentrum Karlsruhe GmbH, DE

In the present paper we propose a method for improved mixing in microchannels. The basic idea is to excite a secondary vortex flow around an obstacle within the micromixer by applying an external oscillatory electrical [...]