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Representative, fluorescent images of the GFP-linked gold-nanostructured droplets, measured (A) 1 day, (B) 4 days and (C) 10 days after creation, respectively. All images have the same intensity scale. The right inset shows the chemical immobilization of the His6-GFP on top of the gold nanoparticle by means of Ni-NTA-thiol linker (not to scale).
