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. Author manuscript; available in PMC: 2015 Sep 16.
Published in final edited form as: Anal Chim Acta. 2014 Jun 21;843:73–82. doi: 10.1016/j.aca.2014.06.036

Fig. 1.

Fig. 1

(a) Schematic illustration of the fabrication of the gold nanorods-based, antibody-functionalized SERS probe. (b–d) Characterizations of the SERS probe. (b) TEM image of the bare gold nanorods, scale bar is 50 nm. (c) Extinction spectra of the GNRs at each step of the coating process. (d) SERS spectrum of the antibody-functionalized gold nanorods with 4-MBA as the reporter molecules. GNR: gold nanorod; 4-MBA: 4-mercaptobenzoic acid.