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Fig. 2 | Nanoscale Research Letters

Fig. 2

From: Successive Release of Tissue Inhibitors of Metalloproteinase-1 Through Graphene Oxide-Based Delivery System Can Promote Skin Regeneration

Fig. 2

GO and TIMP-1-GO characterization. a TIMP-1 was absorbed onto GO. The analysis revealed that 75 ± 1.2% of GO was absorbed to TIMP-1. b The cumulative release profiles of TIMP-1 were recorded. TIMP-1 embedded in GO represents a suitable system for prolonged TIMP-1 release about 40 days. c The chemical composition between the GO and TIMP-1-GO was investigated using FTIR spectroscopy. The waveform and the wave peak of GO were significantly different from those of TIMP-1-GO. d The curve of thermal gravimetric analysis shows no major differences between GO and TIMP-1-GO from 50 to 800 °C. The curve of thermal gravimetric analysis showed no appreciable differences between control GO and TIMP-1-GO

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