Fig. 2
From: Selective killing of cancer cells by nanoparticle-assisted ultrasound
Phase-contrast and fluorescence images of trypan blue stained BEAS-2B and A549 co-cultures with and without US exposure (A) and the corresponding numbers of necrotic BEAS-2B (B, D) and A549 (C, D) cells. A Control (untreated) cells (a–d); cells treated only with US (e–h); cells treated with US and gold NPs (i–l); fluorescence images of normal cells (green) (a, e, i) and cancer cells (red) (b, f, j); phase-contrast images of the co-culture (c, g, k); merged fluorescence and phase-contrast images (d, h, l). *represents P < 0.05, and **represents P < 0.01