In this study, we established gold nanorods (Au NRs) core–silver nanoparticles (Ag NPs) satellite assemblies as an ultrasensitive aptamer-based SERS sensor for the detection of Mucin-1, a specific breast cancer marker protein. The limit of detection (LOD) was 4.3 aM and the wide linear range was 0.005–1 fM.
J. Feng, X. Wu, W. Ma, H. Kuang, L. Xu and C. Xu, Chem. Commun., 2015, 51, 14761 DOI: 10.1039/C5CC05255F
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