I am working on P. aeruginosa Biofilm assays as a part of my research. Biofilm formation was carried out using Microtiter plate Biofilm Formation Assay.
Can someone suggest a way to find MIC of the biofilms using the normal 96 well plates? I tried to get the results using the microdilution method, but it gave me smaller MIC values for the Biofilms compared to the Planktonic Cells.
Is 620 nm wavelength too high to quantify the biofilm in 30% acetic acid? Because the plate reader in our lab provides readings only at 492nm and 620nm.
You may follow the attached protocol to quantify the biofilms and to determine the minimum inhibitory concentration. If you do not have a plate reader to measure the absorbance at 595 nm, then you may also use a spectrophotometer after making appropriate dilutions of all the samples (to increase the volume as needed for a cuvette).
The question is confusing. Biofilm is an established complex. One might endeavor to determine the concentration that prevents biofilm development from a planktonic inoculum as Dr. Hazarika suggested above.