File Name : fig s1.doc

Caption : figure s1 digital photographs of ag/gd@bsa dispersed in pbs at different time point.

File Name : fig s2.doc

Caption : figure s2 pa signal intensity of ag/gd@bsa over a 700-900 nm nir range.

File Name : fig s3.doc

Caption : figure s3 viability of c6 cells upon incubation with ag/gd@bsa for 24 h.

File Name : fig s4.doc

Caption : figure s4 viability of 3t3 cells upon incubation with ag/gd@bsa for 24 h.