Fig. 3
From: An efficient antimicrobial depot for infectious site-targeted chemo-photothermal therapy
In vitro chemo-photothermal combinational therapy for bacteria eradicating. Representative images of bacterial colonies formed by (a) MRSA and (b) E. coli after exposed to (a1, b1) PBS, (a2, b2) AgNO3, (a3, b3) GCS-PDA@GNRs, (a4, b4) Ag+-GCS-PDA@GNRs, (a5, b5) PBS + NIR, (a6, b6) AgNO3 + NIR, (a7, b7) GCS-PDA@GNRs + NIR and (a8, b8) Ag+-GCS-PDA@GNRs + NIR, respectively. The bacterial viability of (c) MRSA and (d) E. coli after treatment of PBS, AgNO3, GCS-PDA@GNRs and Ag+-GCS-PDA@GNRs with or without NIR laser, respectively. The cell viability of (e) HaCaT cells and (f) 3T3 fibroblasts treated with different concentrations of Ag+-GCS-PDA@GNRs with or without NIR light irradiation (0.5 W cm−2, 7 min). * and ** present p < 0.05 and p < 0.01, respectively