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SEM images of DFNS/Au nanohybrids synthesized by using various reaction conditions (scale bar: 250 nm): DFNS/Au hybrids synthesized a) using the original synthesis method (ratio: 246), b) without AgNO3 (aq), c) without Brij 35, and d) without CTAB. The HAuCl4 concentration is 30 mm in each case, and other experimental conditions are kept the same.
