With it, these sensors were sensitive enough to detect unlabeled cognate peptides both in organic solution and in the solid state at low micromolar concentrations. (science.sciencemag.org)
Our data obtained with the MTT assay suggest a non-specific cytotoxic effect of long term (3 days) treatments of both endothelial and tumor cells with micromolar concentrations of kahweol. (journals.plos.org)
Following purification, recombinant proteins were quantitated by ELISA and while expression levels varied significantly between individual proteins, most were purified to micromolar levels (Table 1). (malariajournal.biomedcentral.com)