Abstract: A method for manufacturing a copper composite electrode, including contacting a conductive substrate including copper with a phosphate solution for oxidation to produce a copper phosphate structure on a surface of the conductive substrate, thus acquiring a copper phosphate composite electrode.

Abstract: The present invention relates a method for detecting a target in a sample, which can acquire a concentration of the target in a sample by detecting the reaction between a complex and a substrate. The complex comprises a first composition, a target, and a second composition, and the second composition comprises a plurality of enzyme to catalyze the reaction of the substrate.

Abstract: A method for manufacturing a copper composite electrode, including contacting a conductive substrate including copper with a phosphate solution for oxidation to produce a copper phosphate structure on a surface of the conductive substrate, thus acquiring a copper phosphate composite electrode.

Abstract: An electrochemical affinity sensing chip integrated with fluidic stirring suitable for sensing objects is provided. The electrochemical affinity sensing chip integrated with fluidic stirring includes a substrate and a plurality of electrochemical-sensing electrode groups. The electrochemical-sensing electrode groups are disposed on the substrate and for electrochemically sensing the object. Each electrode group comprises a disk electrode, a first ring electrode, and a second ring electrode. The disk electrode is disk-shaped, and the electrode surface is immobilized with a probe. The first ring electrode is curved and surrounds the disk electrode. The second ring electrode is curved and surrounds the first ring electrode. The first ring electrode and the second ring electrode produce an alternating current electrohydrodynamic (ACEHD) stirring to promote the hybridization efficiency between the objects and the probes immobilized on the surface of disk electrode.

Abstract: A disposable capillary electrophoresis detecting device includes a fixing device, a capillary electrophoresis microchip, and an electrochemical sensor microchip. The fixing device includes two chip-fixing bases having a first chip-holding cavity horizontally arranged and a second chip-holding cavity vertically arranged. The second chip-holding cavity is substantially perpendicular to the first chip-holding cavity and faces an end portion thereof. The capillary electrophoresis microchip is horizontally placed in the first chip-holding cavity. The electrochemical sensor microchip is vertically placed in the second chip-holding cavity. In the electrochemical sensor microchip, a patterned insulation layer is located on a detecting electrode, exposes a sensor area of the detecting electrode, and is extended to two sides of the sensor area.

Abstract: A disposable capillary electrophoresis detecting device includes a fixing device, a capillary electrophoresis microchip, and an electrochemical sensor microchip. The fixing device includes two chip-fixing bases having a first chip-holding cavity horizontally arranged and a second chip-holding cavity vertically arranged. The second chip-holding cavity is substantially perpendicular to the first chip-holding cavity and faces an end portion thereof. The capillary electrophoresis microchip is horizontally placed in the first chip-holding cavity. The electrochemical sensor microchip is vertically placed in the second chip-holding cavity. In the electrochemical sensor microchip, a patterned insulation layer is located on a detecting electrode, exposes a sensor area of the detecting electrode, and is extended to two sides of the sensor area.

Abstract: Provided is an impedimetric biosensor system having a chip and an electrochemical sensor connected to the chip. The chip includes a substrate and at least one electrode assembly. The electrode assembly is mounted on the substrate as working electrodes for contacting an analyte. The electrode assembly is controlled under a controlling condition for alternating current electroosmotic flow (ACEOF), such that an ACEO vortex occurs to increase collision between a target in the analyte and the at least one electrode assembly. The impedimetric biosensor system has an improved efficiency on detecting a target analyte.

Abstract: A method for manufacturing a microfluidic chip with electroosmotic flow (EOF) controlled by inducing a perpendicularly electric field through a self-assembled monolayer (SAM) is disclosed. The method is primarily to combine a top plate and a bottom plate; wherein the bottom plate has a gate electrode on an upper surface thereof and has the SAM formed on said gate electrode. The top plate has an elongate micro channel groove which is narrower than that of the gate electrode, recessed in a lower portion thereof and filled with a buffer solution. Accordingly, the flowing direction and the flowing velocity of said EOF are controlled by supplying high voltage to two ends of said micro channel groove to produce an electric field for driving EOF and supplying an inducing voltage to the gate electrode. The SAM of the present invention can be easily formed and thin enough to lower the inducing voltage required for controlling the zeta potential and have a smaller chip size.