Unknown

Dataset Information

0

Precisely tuneable energy transfer system using peptoid helix-based molecular scaffold.


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 CH2Cl2 and from 96.3% to 97.6% using femtosecond transient absorption measurements in toluene, depending on the relative spatial arrangement of the donor-acceptor pairs. Our results suggest that the remarkable precision and tunability exhibited by nature can be achieved by mimicking the design principles of natural photosynthetic proteins.

SUBMITTER: Kang B 

PROVIDER: S-EPMC5500559 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

altmetric image

Publications

Precisely tuneable energy transfer system using peptoid helix-based molecular scaffold.

Kang Boyeong B   Yang Woojin W   Lee Sebok S   Mukherjee Sudipto S   Forstater Jonathan J   Kim Hanna H   Goh Byoungsook B   Kim Tae-Young TY   Voelz Vincent A VA   Pang Yoonsoo Y   Seo Jiwon J  

Scientific reports 20170706 1


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 +   ...[more]

Similar Datasets

| S-EPMC4353014 | biostudies-literature
2020-01-04 | GSE135458 | GEO
| S-EPMC7022176 | biostudies-literature
| S-EPMC2814525 | biostudies-literature
| S-EPMC9597948 | biostudies-literature
| S-EPMC9116445 | biostudies-literature
| S-EPMC6278558 | biostudies-literature
2020-01-16 | PXD015394 | Pride
| S-EPMC5145784 | biostudies-literature
| S-EPMC9589895 | biostudies-literature