Fig. 2From: Nanochelating based nanocomplex, GFc7, improves quality and quantity of human mesenchymal stem cells during in vitro expansion a SEM image of Fe-chelate nanosphere (the faces of the Fe-chelate nanospheres are smooth). b SEM image of the growth progression of Cu-chelator polymerized on the surface of Fe-chelate nanosphere, bar = 20 nm; c IR spectrum. SEM scanning electron microscopy, IR infraredBack to article page