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. Author manuscript; available in PMC: 2011 Dec 28.
Published in final edited form as: Phys Chem Chem Phys. 2011 Apr 21;13(24):11551–11567. doi: 10.1039/c0cp01841d

Fig. 4.

Fig. 4

Detection scheme for label-free protein sensing with SERS. The presence of protein induces the aggregation of Ag nanoparticles, which is then used to produce a strong SERS signal. Figure adapted from Ref. 111, reproduced by permission of the American Chemical Society.