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. Author manuscript; available in PMC: 2017 Jun 28.
Published in final edited form as: ACS Nano. 2016 May 16;10(6):6008–6019. doi: 10.1021/acsnano.6b01560

Figure 2. Cytotoxicity in THP-1 and BEAS-2B cells exposed to electronic-sorted SWNCTs.

Figure 2

Assessment of cytotoxicity of SWNCTs in (A) THP-1 and (B) BEAS-2B cells. Both cell types were grown in 96-well plates, followed by exposure to 12.5, 25, 50 and 100 µg/mL of each of the SWNCTs suspensions for 24 h. The media were subsequently washed with PBS and replaced with 120 µL aliquots of the MTS working solution. After incubation for 1 hour, the plates were centrifuged to collect the supernatants, and their absorbance read at 490 nm in a microplate reader (SpectroMax M5e, Molecular Devices, Sunnyvale, CA). All the MTS values were normalized according to the nontreated control, which was regarded as representing 100% cell viability. *p< 0.05 compared to control.