Abstract: A sensor device is provided for detecting an analyte in a sample in which an analyte is bound to a detection reagent to form a bound complex. The device comprises (a) a sample (5) comprising an ionic analyte and a detection reagent in a conductive fluid, wherein the detection reagent has a net charge different from the analyte; (b) a first permeable polymeric hydrogel plate (3) and a first spacer plate (8), which plates provide a compartment for the sample; (c) an anode (1) juxtaposed to the outside of the first hydrogel plate and not in contact with the sample; (d) a cathode (9) juxtaposed to the outside of the first spacer plate and not in contact with the sample; (e) a voltage generator (10) to apply an electric potential to the anode and cathode; and (f) a detector (11).

Abstract: The present invention provides a sensor device for detecting and quantifying a gene product in a cell or tissue section sample by employing an analysis reagent that binds to the gene product to form a detectable product. The device comprises (a) a first and second coated plate, wherein the plates are parallel to each other and are coated with a conductive material; (b) a first and second conductive plate, wherein the plates are juxtaposed over the coated plates; (c) a first and second conducting tape connecting a first and second end of the coated plates and the conductive plates, respectively; (d) a first and second gasket insulator insulating a first and second end of the coated plates and the conductive plates, respectively; (e) a voltage generator connected to the first and second conductive plates to apply an electric potential to the conductive plates; and (f) a detector. The first and second coated plates provide a compartment for a cell or tissue section sample and a conductive fluid.

Abstract: A multichannel system for synchronizing independently driven filter wheels. The system is comprised of a means for controlling operation of the system by providing appropriate instructions. A clock provides timing signals to assure that instructions are executed at the correct time. A device having a programmable memory with the ability to receive and transmit signals is in communication with the clock and the control means. This programmable memory device, in response to a signal from the control means executes a preselected program and transmits a signal in response to an instruction receive from the control means. Two assemblies, each comprised of a programmable motor controller, a motor driver and a motor are attached to an encoder and a filter wheel having a plurality of filters. The assemblies are connected to a power source.