Fig. 4From: Polyethylene glycol-coated ultrasmall superparamagnetic iron oxide nanoparticles-coupled sialyl Lewis X nanotheranostic platform for nasopharyngeal carcinoma imaging and photothermal therapyA The temperature changes of five different concentrations of USPIO-PEG-sLex nanoparticles under different power densities of NIR (a, b, and c) with a wavelength of 808Â nm. B Cell viability of USPIO-PEG-sLex nanoparticles co-cultured with5-8F cells for 2Â h, 4Â h, 8Â h, 24Â h. C Cell viability of 5-8F cells in same concentration of USPIO-PEG-sLex nanoparticles at different culture times. D Cell viability of 5-8F cells with different concentrations USPIO-PEG-sLex nanoparticles in vitro PTT. E Trypan blue staining. Dead cells were stained blue, while living cells were translucent. The cell viability of each concentration was 80.00%, 75.21%, 78.33%, 75.80%, 69.45%, respectively (a, 0Â mg/ml, b, 0.025Â mg/ml, c, 0.05Â mg/ml, d, 0.1Â mg/ml, e, 0.2Â mg/ml)Back to article page