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Nano Convergence
Fig. 8 | Nano Convergence

Fig. 8

From: Nanostructured surfaces for analysis of anticancer drug and cell diagnosis based on electrochemical and SERS tools

Fig. 8

(Reprinted from [96]. Copyright @ 2011 PloS ONE)

Characterization of the SERS-active substrates. a SEM topography of Au NPs deposited on the APTMS/ITO substrate. b SEM topography of the Au nanodot array fabricated on an ITO surface through an Al mask. c Three-dimensional confocal image of the AFM tip. d Confocal image of the AFM tip focused at the same point as the IR laser. e AFM topography of the PATP/Au NPs deposited on the APTMS/ITO substrate. f AFM topography of the PATP/Au nanodot array fabricated on an ITO surface. g SERS spectra of PATP at several points from the Au NP array substrate. h SERS spectra of PATP at several points from the Au nanodot array substrate. i Intensity distributions of the Raman peak corresponding to NH group within the SERS intensity peaks recorded from the PATP monolayer immobilized on the (1) Au NP array and (2) Au nanodot array

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