Abstract:
Devices and methods for performing extracellular recording of cells, such as excitable cells, cardiomyocytes, and cardiomyocyte precursor cells is provided. An exemplary device includes a nonconductive substrate forming or provided as a base of one or more wells; a recording electrode positioned on the substrate within the well, wherein the recording electrode is accessible to cells when a cell sample is added to the device; and a reference electrode positioned within the well in a cell-free zone, the cell-free zone characterized as free from contact with cells when the cell sample is added to the device, thereby preventing contact between cells and the reference electrode.
Abstract:
The present invention provides substituted di-, tri-, tetra- and penta-sulfide compounds and compositions, and methods of using the same for the treatment and/or prevention of a cell proliferative disorder. The present invention also provides methods for preparing trisulfide compounds and compositions.
Abstract:
Systems and methods for improved monitoring of excitation-contraction coupling and excitable cells are provided, which provide millisecond time resolution. The system is capable of continuously monitoring excitation-contraction coupling in a relatively high-throughput manner. The system includes a device for monitoring cell-substrate impedance, an impedance analyzer capable of impedance measurements at millisecond time resolution, electronic circuitry that can engage the device and selectively connect two or more electrode arrays of the device to the impedance analyzer and a software program that controls the electronic circuitry and records and analyzes data obtained from the impedance analyzer.