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Fig. 3 | Nanoscale Research Letters

Fig. 3

From: Examining the Roles of Emulsion Droplet Size and Surfactant in the Interfacial Instability-Based Fabrication Process of Micellar Nanocrystals

Fig. 3

Examining the colloidally unstable part of the micellar QDs. a Left, the disappearance of fluorescence of the colloidally unstable part of the micellar QDs from the dispersion after 10-day storage could be resumed after the dispersion was shaken. Right, the fluorescence of hydrophobic QDs was not detected in water because they could not be dispersed in water. b Left and middle are the TEM images of the bottom portions of the micellar QD dispersions formed from manual shaking for 1 min (i.e., ~25 μm emulsion droplets) and sonication for 30 s (~3 μm emulsion droplets), respectively, after 10-day storage. Right, TEM image of PVA micellar QDs. c Dialysis (against water) treatment on PS-PEG micellar QDs (left) and PVA micellar QDs (right), respectively. A hand-held UV lamp was used to excite the red QD fluorescence

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