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. Author manuscript; available in PMC: 2014 Nov 26.
Published in final edited form as: ACS Nano. 2013 Oct 11;7(11):10.1021/nn4026228. doi: 10.1021/nn4026228

Figure 3.

Figure 3

Gadolinium loading on the liposome surface via DTPA-chitosan or DTPA-chitosan-g-C18. (a) Schematic depicting gadolinium chelation by chitosan-coated liposomes. (b) The xylenol orange absorbance spectra of the mixture of GdCl3 and liposome coated by DTPA-chitosan or DTPA-chitosan-g-C18 (I) and the mixture of GdCl3 and uncoated liposome (II). (c) Analysis of DTPA-chitosan or DTPA-chitosan-g-C18 bound to a liposome with (open bars) and without (shaded bars) addition of GdCl3 in the liposome suspension. * represents statistical significance of the difference in the amount of DTPA-chitosan adsorbed to liposomes in the presence and absence of GdCl3 (*p < 0.05).