Figure 3 | Scientific Reports

Figure 3

From: Facile Hydrophobication of Glutathione-Protected Gold Nanoclusters and Encapsulation into Poly(lactide-co-glycolide) Nanocarriers

Figure 3

Effect of pH and the alkane chain length on the phase transfer of GSH-AuNCs into dichloromethane using dodecylamine. (A) Digital photograph of vials contain biphasic system of water and dichloromethane under daylight (upper panel) and long-wavelength UV lamp irradiation (365 nm) (lower panel) upon phase transfer at various pH of the aqueous phase (methanol/DDA was added to the aqueous GSH-AuNCs and then the pH was adjusted to the labeled value on the graph). (B) Emission spectra of DDA-GSH-AuNCs in dichloromethane (vials in A) upon phase transfer at various pH. (C) Digital photograph of vials contain biphasic system of water and dichloromethane under daylight (upper panel) and long-wavelength UV lamp irradiation (365 nm) (lower panel) upon phase transfer using either butylamine (C4), decylamine (C10), dodecylamine (C12), hexadecylamine (C16) or octadecylamine (C18). (D) Emission spectra of transferred GSH-AuNCs using decyamine (C10) or dodecylamine (C12) in dichloromethane.

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