Abstract
We previously reported the incorporation of a large number of free base- and Zn(II)-porphyrins near the surface of dendritic poly(L-lysine)s in a scramble fashion [1] and hemisphere fashion [2]. Each of the dendrimers showed fluorescence energy transfer from Zn(II)-porphyrin to free base-porphyrin with 85 and 43% efficiencies, respectively. In the present study, we combined eight Zn(II)-porphyrins and sixteen free base-porphyrins in double strata fashion on a dendritic poly(L-lysine) ((Zn8/Fbl6)K62 in Figure 1). Namely, Zn(II)-porphyrins are placed near the core, while free base-porphyrins are scattered near the surface.
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