- Precisely tuneable energy transfer system using peptoid helix-based molecular scaffold.
Precisely tuneable energy transfer system using peptoid helix-based molecular scaffold.
Scientific reports (2017-07-08)
Boyeong Kang, Woojin Yang, Sebok Lee, Sudipto Mukherjee, Jonathan Forstater, Hanna Kim, Byoungsook Goh, Tae-Young Kim, Vincent A Voelz, Yoonsoo Pang, Jiwon Seo
PMID28684782
ABSTRACT
The energy flow during natural photosynthesis is controlled by maintaining the spatial arrangement of pigments, employing helices as scaffolds. In this study, we have developed porphyrin-peptoid (pigment-helix) conjugates (PPCs) that can modulate the donor-acceptor energy transfer efficiency with exceptional precision by controlling the relative distance and orientation of the two pigments. Five donor-acceptor molecular dyads were constructed using zinc porphyrin and free base porphyrin (Zn(i + 2)-Zn(i + 6)), and highly efficient energy transfer was demonstrated with estimated efficiencies ranging from 92% to 96% measured by static fluorescence emission in CH
MATERIALS