Then, a small animal living body imaging system (IVIS Imaging Spectrum System, PerkinElmer, Inc. USA) equipped with a fluorescence filter that has an excitation wavelength of 740 nm and an emission wavelength of 820 nm was utilized to monitor the fluorescence signals at tumor sites at ...
Imaging settings were: exposure time: 3 s; binning: medium; F/stop: 2; fluorescent excitation filter: 745 nm; fluorescent emission filter: 810–885 nm. A fluorescent background acquisition was performed for each time point. Living Image software (Caliper Life Sciences, Hopkinton, MA, USA) ...