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. 2014 Oct 9;8(10):10998–11006. doi: 10.1021/nn505162u

Figure 2.

Figure 2

Light-scattering detection of single particles in the low nanometer range using HSFCM. (a–d) Representative SS burst traces (1) and burst-area distribution histograms (2) for 29 nm diameter silica nanoparticles (a), 14 nm diameter silica nanoparticles (b), 10.4 nm diameter gold nanoparticles (c), and 6.7 nm diameter gold nanoparticles (d). The laser excitation power was 160 mW, the focused laser spot was 6.4 μm, and no ND filter was placed in the SS light path. Each distribution histogram was derived from 1 min of data, and the nanoparticle concentrations were approximately 1–5 × 109/mL.