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Fig. 4 | Journal of Nanobiotechnology

Fig. 4

From: Nanotechnology: a promising method for oral cancer detection and diagnosis

Fig. 4

(Reprinted with permission from [89]. Copyright 2015 Nano Letters)

Graphical representation of the SERS active gold nanoparticles for oral cancer cell HSC-3 imaging. a synthetic scheme of Raman dye (44DP)-coded Au-NNPs using four different kinds of DNA-AuNPs as core particles. b the solution color and HR-TEM image of 44DP-coded Au-NNPs. c, d Raman spectra of 44DP-coded Au-NNP solution prepared from four different spacer DNA with an excitation of 633 (c) and 785 nm (d)

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