* The tri-support legs must be balanced correctly so that the filter is parallel to the electrodes. The ENDOHM-24 (#EVM-EL-03-01-03) is compatible with the following chambers: Corning * The tri-supports legs must be balance correctly so that the filter is parallel to the electrodes. The ENDOHM-12 (#EVM-EL-03-01-02) is compatible with the following chambers: Corning * The tri-supports overhang the chamber edge and the well cannot be held parallel to the electrodes. The ENDOHM-6 (#EVM-EL-03-01-01) is compatible with the following chambers: Corning Endohm chambers may be sterilized with EtO, alcohol or a bactericide not autoclavable. To date, cups from Corning, Millipore, Nunc, Greiner and BD Falcon have been tested. Endohm together with EVOM™ Manual offers the most accurate and economical endothelial ohmmeter now available. Because of the uniform density of the AC square wave current from EVOM™ Manual, errors owing to electrode polarization or membrane capacitance are largely eliminated. The heart-touching story of Mayomi Fiwasewa, a brilliant student who lost his father, and was left with a struggling mother to cater for him. Compared with other resistance measurement methods, Endohm with EVOM2™ offers a much more convenient and economic solution to “leaky tissue” measurement. With Endohm’s fixed electrode geometry, variation of readings on a given sample is reduced from 10-30 Ω with STX2 electrodes (depending on the experience of the user) to 1-2 Ω. The background resistance of a blank insert is reduced from 150 Ω (when using WPI’s hand-held STX2 electrodes) to less than 5 Ω. Make more precise measurements with EndohmsĮndohm’s symmetrically opposing circular disc electrodes, situated above and beneath the membrane, allow a more uniform current density to flow across the membrane than with the basic STX2 electrodes. The height of the top electrode can be adjusted to fit cell culture cups of different manufacture. The chamber and the cap each contain a pair of concentric electrodes: a voltage-sensing silver/silver chloride pellet in the center plus an annular current electrode. Transfer cups from their culture wells to the Endohm chamber for measurement rather than using hand-held electrodes. Using WPI’s EVOM™ Manual resistance meter, Endohm chambers provide reproducible resistance measurements of endothelial and epithelial monolayers in culture cups.
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