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Fig. 3 | Nanoscale Research Letters

Fig. 3

From: Water-Soluble Fullerenol with Hydroxyl Group Dependence for Efficient Two-Photon Excited Photodynamic Inactivation of Infectious Microbes

Fig. 3

a Relative TPA spectra of the material. TPE as a function of the wavelength (720–820 nm) at 98.56 nJ pixel−1 that was used to monitor the signals. Delivered dose, 3 μg mL−1 water-soluble C60(OH)46 or C60(OH)21 fullerenol. The number of surviving b material-treated bacteria was determined by CFU counting assay and is expressed as the percentage (%) for c bacteria that corresponds to the unit of CFU mL−1. Delivered dose, OD600 ~ 0.05 of E. coli and 0–9 μg mL−1 water-soluble fullerenol. d Measurement of phosphorescence spectra at 1270 nm for material. Delivered dose, 3 μg mL−1 water-soluble fullerenol. Data are means ± SD (n = 6)

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