Fig. 5From: Pre-referral intranasal artesunate powder for cerebral malaria: a proof-of-concept study RPMI 2650 cell viabilities according to artesunate concentration using a MTT assay. Artesunate cytotoxicity was assessed on RPMI 2650 cells prior to performing permeation tests with AS solutions. No cytotoxicity was recorded for the 0.75 µg/ml artesunate solution (cell viability > 80%). Data are presented as the mean ± SD (n = 9). DMSO dimethyl sulfoxideBack to article page