The core radius of pure A-pBuOzi-A micelles in water is approximately 18 Å (Figure ). Since both shell thicknesses are negligibly small, the observed A-pBuOzi-A aggregates can be described as simple, surprisingly small spheres. Adding CUR (10/1) causes an increase of the micellar core to roughly 30 Å and the development of a first shell with nearly the same size (≈ 35 Å) (Figure , B). Increasing the CUR-content (10/3) further, the core of the A-BuOzi-A/CUR-micelles appears to shrink to its initial value and remains almost constant at around 18-20 Å upon further increase of CUR.