TEM images of a solution containing NMP (top: GMP (50 μM), bottom: TMP (30 μM)) and amphiphile (top: 50 μM; bottom: 30 μM). Samples were stained with a 2% uranyl acetate solution. Previously reported(27)data for C16cyclenZn2+(bottom graphs) are shown for comparison. Experimental conditions: [HEPES] = 5 mM, pH 7.0,T= 25 C. The bottom part is reproduced with permission from ref(27). Copyright 2020, Wiley.