Fig. 3From: IR808@MnO nano-near infrared fluorescent dye’s diagnostic value for malignant pleural effusionA Electron micrographs of IR808@MnO with an average particle diameter of 136.8 ± 2.9 nm. B Fluorescence spectrogram of IR808@MnO, MnO does not have fluorescence emission property and the emission peak of IR808@MnO is at 808 nm. C The hydrated particle size of MnO is 130.5 ± 3.4 nm. D The hydrated particle size of IR808@MnO is 136.8 ± 2.9 nmBack to article page