Conducting Transepithelial/transendothelial electrical resistance (TEER) across a cellular monolayer is a standard and reliable method used across most laboratories to confirm the integrity and permeability of the monolayer cultures grown on tissue culture inserts. When using a TEER measurement device, one must confirm that the values obtained by the TEER device are accurate. In most cases, a single control resistor is used to validate the accuracy of such devices. However, taking 1 control measurement for quality control checks is not sufficient. There is a need for a multi-point control resistance device to validate the accuracy of TEER measurement devices.
MedTec has developed a TEER Control Test Resistors module to meet the needs of researchers conducting TEER measurements. Our initial modules, as shown in the images here, contain 4 control resistance measurements of 200, 500, 1000, and 2000 ohms. After close discussions with researchers and in an effort to capture the whole resistance spectrum, our new modules will include a total of 8 control resistance measurements of 10, 50, 100, 250, 500, 1000, 2500, and 5000 ohms.
Interested in the TEER Control Test Resistors?
Jose Zavala, Ph.D.
For more information contact Jose directly via email, Linkedin or send us a message via the site.