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Cytotoxicity evaluation of Cu-LDH@PAMA/DMMA. (A) Cell viability of Cu-LDH@PAMA/DMMA after 20 h incubation in pH 7.4 and 6.8 media, washing away of Cu-LDH NPs, subsequent 808 nm laser irradiation (1 W/cm2, 3 min), and another 4 h incubation in normal media. *p <0.05, **p <0.01. (B) Cell viability of Cu-LDH@PAMA/DMMA after 24 h incubation in pH 7.4 media, without laser irradiation.
