Which EVOM™ Electrode is Right for Your Application?

It is designed to facilitate measurements of voltage (potential difference: PD) and resistance (transepithelial electrical resistance: TEER) of cultured epithelia (cellular layer) grown onto permeable membrane inserts in 12- and 24-well tissue culture plates. STX4 can measure directly inside the well plates with 12 and 24 inserts.

WPI’s STX HTS series of EVOM™ electrodes, replacing the STX100 electrodes, provide a cost-effective alternative to automation, allowing HTS well plates to be measured manually using a hand–held electrode. Each STX HTS EVOM™ Electrode is designed to self-align based on the form factor of the apical and basal access ports of the HTS plate. WPI developed STX HTS EVOM™ Electrode for 24 and 96 well plates specific to Corning, Corning Falcon and Millipore.

Endohm chambers provide reproducible resistance measurements of endothelial and epithelial monolayers in culture cups. Transfer cups from their culture wells to the Endohm chamber for measurement rather than using hand-held electrodes. The chamber and the cap each contain a pair of concentric electrodes. The height of the top electrode can be adjusted to fit cell culture cups of different manufacture.

• ENDOHM-6 for TEER in 6 mm Insert
• ENDOHM-12 for TEER in 12 mm Insert
• ENDOHM-24 for TEER in 24 mm Insert