| 초록 |
Natural photosystems are equipped with light-harvesting antennae, which absorb light and transfer the resulting excitation energy between chromophores and finally to a reaction center. Designing and fabricating artificial light harvesting antennae are gaining increasing attention because of their important role in photoelectric and photoelectrochemical devices. Here we report on DNA templates for the assembly of chromophores to facilitate directedenergy transfer (ET). Single strand DNA molecules linked with three different chromophores are hybridized with their complementary matrix DNA or PNA strands. The ET efficiencies for the single and double step energy transfers are measured in aqueous milieu at 4 oC and room temperature. This presentation also discusses the impact of microenvironments on the ET between the chromophores assembled with DNA. [This work was supported by NanoMaterial Technology Development Program through the NRF funded by MEST (Grant No. 2012049802)] |
