Thermogravimetric analyses were performed to estimate the efficiency of the conjugation of BUF-II on the surface of GO. Three mg of solid dry samples were analyzed via a simultaneous TGA/DSC instrument (TA Instruments, New Castle, DE, United States). The analyses were conducted at a linear heating rate of 10°C/min from 25 to 600°C under a nitrogen atmosphere. The conjugation efficiency was estimated by correlating the percentage of weight loss to the detachment of the molecules chemically bound to the surface of GO.
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