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In the work, microfluidic device consisting of an interdigitated microarray (IDA) electrode was developed for a rapid, and separation-free immuno-sensors based on a manipulation technique of microparticles by dielectrophoresis (DEP). A poly-dimethylsiloxane (PDMS) substrate with microfluidic channel was placed on the IDA plate to allow to fabricating the device. On applying AC voltage to the IDA in...
This contribution describes the development of an impedimetric immunosensor for atrazine detection. This immunosensor is based on the use of interdigitated metallic mu- electrodes (IDmuEs). The method described in this work does not use any redox mediator and relies on the direct detection of the immunochemical competitive reaction between the pesticide and a haptenized-protein immobilized on interdigitated...
Negative dielectrophoresis (n-DEP) have been used to manipulate microparticles with immunoreagents (antigens or antibodies) in a microfluidic channel, and applied to develop a rapid immunoassay system. A microfluidic device, with three-dimensional (3-D) microelectrodes fabricated on two substrates, was used to manipulate particle flow in the channel and to capture the particles in the caged area that...
A novel impedimetric biosensor for detection of a wide variety of compounds has been designed and developed. The biosensor is based on a non-isolated surface and non-labelled immunoreactives. The chemical recognition layer was deposited on the surface of the interdigitated μ-electrodes (IDμE's) area (fingers and inter-digits space). Typically, the biosensors and their functionalization are characterized...
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