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Gold nanoparticles (GNPs) of different sizes were used to carry out comparative fluorometric detection study on endotoxin. At excitation wavelength, 308nm the GNPs exhibited strong emission intensity at wavelength 421nm with varying intensities at 215.122, 234.965 and 262.551 for 15nm (GNPs-I), 30nm (GNPs-II) and 40nm (GNPs-III), respectively. The different sizes of GNPs were interacted with endotoxin...
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