Fig. 3. Quantitative ranking of buffer adsorption affinity. (A) Comparison of the extra salt needed to aggregate the 4 mM buffer protected AuNPs. (B) Comparison of NaCl and NaF for aggregating the AuNPs in each buffer. (C) Comparison of NaBr and NaCl for aggregating the AuNPs in each buffer. The original data are in Fig. 2.
