Table 1

Compositions obtained by ICP-AES for the analysis of Fe3O4, Gd:Fe3O4, Au-seeded functionalized Gd:Fe3O4, and gold-silver alloy nanoshells on gold-seeded amine-functionalized Gd:Fe3O4

Sample

Gd ppm

Fe ppm

Au ppm

Ag ppm

Gd:Fe

Au:Ag


Fe3O4

0

70.1

0

0

-

-

Gd: Fe3O4

11.6

57.7

0

0

0.2

-

Au-seeded Gd: Fe3O4

12.2

62.6

1

0

0.2

-

Au-Ag alloy = 1:1 nanoshells on Au-seeded amine-functionalized Gd: Fe3O4

7.0

40.4

6.8

19.5

0.2

0.4

Au-Ag alloy = 5:1 nanoshells on Au-seeded amine-functionalized Gd: Fe3O4

7.7

67.6

24.0

4.5

0.1

5.3


Gheorghe et al. Nanoscale Research Letters 2011 6:554   doi:10.1186/1556-276X-6-554

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