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Figure 1

From: Multifunctional Fe3O4 @ Au core/shell nanostars: a unique platform for multimode imaging and photothermal therapy of tumors

Figure 1

Synthesis and characterization of the Fe3O4 @ Au-PEI.Ac-PEG-FA NSs.

(a) Schematic representation of the synthesis of the Fe3O4 @ Au-PEI.Ac-PEG-FA NSs. (b) UV-vis spectra of the aqueous solution of Fe3O4 @ Au-PEI.Ac-PEG-FA NSs before and after laser irradiation (inset shows the digital photo of the Fe3O4 @ Au-PEI.Ac-PEG-FA NSs in aqueous solution). (c) TEM image (inset is the high magnification TEM image), (d) size distribution histogram and (e) high-resolution TEM image (only an Au spike is shown) of the Fe3O4 @ Au-PEI.Ac-PEG-FA NSs.

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