Biocatalytic self-assembly of supramolecular charge-transfer nanostructures based on n-type semiconductor-appended peptides

Siva Krishna Mohan Nalluri, Cristina Berdugo, Nadeem Javid, Pim W J M Frederix, Rein V Ulijn

Research output: Contribution to journalArticle

94 Citations (Scopus)

Abstract

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 di-hydroxy/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.

Original languageEnglish
JournalAngewandte Chemie International Edition
Early online date30 Apr 2014
DOIs
Publication statusE-pub ahead of print - 30 Apr 2014

Keywords

  • charge transfer
  • gels
  • peptides
  • self-assembly
  • semiconductors

Fingerprint Dive into the research topics of 'Biocatalytic self-assembly of supramolecular charge-transfer nanostructures based on n-type semiconductor-appended peptides'. Together they form a unique fingerprint.

Cite this