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. 2016 Aug 26;7:12520. doi: 10.1038/ncomms12520

Figure 5. Loading of Ch-CNC droplets with latex NPs.

Figure 5

BF (a–c), POM (d–f) and FM (g–i) images of droplets containing fluorescein isothiocyanate dye-labelled 54 nm latex NPs at φNP=0.0052 (a,d,g) and 184 nm dye-labelled latex NPs at φNP of 0.0052 (b,e,h) and 0.0235 (c,f,i). The scale bars in a–c are 100 μm; the scale bars in d–i are 50 μm. Insets in a,b show the corresponding TEM images of 54 and 184 nm latex NPs. The scale bar in insets is 100 nm in a and 300 nm in b. (j) Representative fluorescence line profiles of the Ch-CNC droplets loaded with 54 nm latex NPs at φNP=0.0052 (red) and 184 nm NPs at φNP of 0 (green), 0.0022 (black), 0.0052 (magenta), 0.0088 (blue) and 0.0235 (dark cyan). Inset shows the schematic of a droplet with a fluorescence line profile drawn through the droplet centre (dashed line). To prepare droplets with φNP=0, the Ch-CNC phase was mixed with a supernatant of the latex dispersion. (k) Variation in the core-to-shell fluorescence intensity ratio plotted as a function of NP volume fraction in the droplets. In a–k, φ0=0.043. For each value of φNP, at least, 30 droplets were analysed. The error bars represent the s.d.