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. 2016 May 24;9(6):406. doi: 10.3390/ma9060406

Figure 4.

Figure 4

TEM image of GO–AuNPs composites (a) in situ growth, adapted from [81], with permission from ©2014 Nature Publishing Groupand (b) and (c) ex situ decoration of 20 nm and 40 nm AuNPs on GO sheets respectively, adapted from [82], with permission from ©2010 Royal Society of Chemistry.