Figure 3: Characterization of polymeric micelles.
(a) Small-angle neutron scattering (SANS) patterns of two types of polymeric micelle solutions with corresponding Guinier fits in the inset. Sample 1 solution was prepared by mixing 5 mg of PEO-b-PMMA, 0.6 ml of DMF, 1 ml of 40 mM Na3RhCl6 solution in H2O, and 1.4 ml D2O, while Sample 2 was prepared by mixing 5 mg of PEO-b-PMMA, 0.6 ml of DMF, and 1 ml of 40 mM Na3RhCl6 solution. (b,c) Typical TEM micrographs showing the polymeric micelles (b) before and (c) after the addition of Na3RhCl6 precursor (Scale bar, 50 nm). The polymeric micelles are stained with 1.0 wt% phosphotungstic acid. (d) UV-VIS-NIR spectra of different solutions: (i) DMF+Water, (ii) DMF+Water+Na3RhCl6, (iii) DMF+Water+PEO-b-PMMA and (iv) DMF+Water+PEO-b-PMMA+Na3RhCl6, respectively. [Note: to highlight the interactions among different compositions, UV-VIS-NIR spectra of low- and high- wavelengths were obtained at different composition concentrations: low concentration for low-wavelength, and high concentration for high-wavelength].
