1 Subjects: “...gold clusters...”

2 Subjects: “...gold layer...”

3 Subjects: “...gold clusters...”

4 Subjects: “...gold...”

5 Subjects: “...gold nanoparticles...”

6 Subjects: “...gold placer...”

7 Subjects: “...gold nanoparticles...”

8 Subjects: “...gold nanoparticles...”

9 Subjects: “...gold nanoparticles...”

10 Subjects: “...gold nanoparticles...”

11 Subjects: “...gold nanoparticles...”