期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 53, 期 23, 页码 5882-5887出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201311158
关键词
charge transfer; gels; peptides; self-assembly; semiconductors
资金
- US Air Force (AFOSR) [12448RK7359A]
- European Research Council under the European Union [258775]
- European Research Council (ERC) [258775] Funding Source: European Research Council (ERC)
The reversible in situ formation of a self-assembly building block (naphthalenediimide (NDI)-dipeptide conjugate) by enzymatic condensation of NDI-functionalized tyrosine (NDI-Y) and phenylalanine-amide (F-NH2) to form NDI-YF-NH2 is described. This coupled biocatalytic condensation/assembly approach is thermodynamically driven and gives rise to nanostructures with optimized supramolecular interactions as evidenced by substantial aggregation induced emission upon assembly. Furthermore, in the presence of dihydroxy/alkoxy naphthalene donors, efficient charge-transfer complexes are produced. The dynamic formation of NDI-YF-NH2 and electronic and H-bonding interactions are analyzed and characterized by different methods. Microscopy (TEM and AFM) and rheology are used to characterize the formed nanostructures. Dynamic nanostructures, whose formation and function are driven by free-energy minimization, are inherently self-healing and provide opportunities for the development of aqueous adaptive nanotechnology.
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