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Highly Efficient and Directional Homo‐ and Heterodimeric Energy Transfer Materials Based on Fluorescently Derivatized α,γ‐Cyclic Octapeptides
Author(s) -
Brea Roberto J.,
PérezAlvite María Jesús,
Panciera Michele,
Mosquera Manuel,
Castedo Luis,
Granja Juan R.
Publication year - 2011
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201000545
Subject(s) - cyclic peptide , hydrogen bond , energy transfer , peptide , chemistry , amino acid , acceptor , combinatorial chemistry , nanotechnology , materials science , biochemistry , molecule , organic chemistry , chemical physics , physics , condensed matter physics
Cyclic octapeptides composed of α‐amino acids alternated with cis ‐3‐aminocycloalkanecarboxylic acids, self‐assemble as drumlike dimers through β‐sheet‐like, backbone‐to‐backbone hydrogen bonding. Heterodimerization appears to be significantly more favored than homodimerization, and this represents a novel approach for the design and fabrication of highly stable heterodimeric assemblies. A multicomponent equilibrium network based on fluorescently derivatized self‐assembling α,γ‐cyclic octapeptides has been successfully used to form light‐harvesting/light‐converting ensembles with a distinctive organization of donor and acceptor units able to act as efficient artificial photosystems.