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Fig. 1 | Journal of Nanobiotechnology

Fig. 1

From: An efficient antimicrobial depot for infectious site-targeted chemo-photothermal therapy

Fig. 1

Characterization of Ag+-GCS-PDA@GNRs. a Representative TEM images of (a1) GNRs, (a2) PDA@GNRs, (a3) GCS-PDA@GNRs, and (a4) Ag+-GCS-PDA@GNRs. b UV–vis-NIR spectra of GNRs, PDA@GNRs, GCS-PDA@GNRs and Ag+-GCS-PDA@GNRs, respectively. c The zeta potential of Ag+-GCS-PDA@GNRs in PB with different pH values (7.4 & 6.3). d Quantitative analysis of Ag+ ions loading capacity of PDA@GNRs. e The release curve of Ag+ ions from Ag+-GCS-PDA@GNRs in medium at pH 7.4 and 6.3 with or without laser irradiation for a certain time, respectively. f Temperature evolution profile of PB buffer and Ag+-GCS-PDA@GNRs suspensions with different concentrations in PB (pH 6.3) upon NIR laser (808 nm, 0.5 W cm−2) irradiation. g The corresponding thermographic images of different concentrations of Ag+-GCS-PDA@GNRs suspension in PB (pH 6.3) under the NIR irradiation. h The change in absorbance intensity of Ag+-GCS-PDA@GNRs after repeated laser irradiation (n = 5; 808 nm, 0.5 W cm−2). i Change in thermal curves of Ag+-GCS-PDA@GNRs after repeated laser irradiation (n = 5; 808 nm, 0.5 W cm−2)

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