A Hetero-Bifunctional Spacer for the Smart Engineering of Carbon-Based Nanostructures

作者:Tuci Giulia; Luconi Lapo; Rossin Andrea; Baldini Francesco; Cicchi Stefano; Tombelli Sara; Trono Cosimo; Giannetti Ambra; Manet Ilse; Fedeli Stefano; Brandi Alberto; Giambastiani Giuliano*
来源:ChemPlusChem, 2015, 80(4): 704-714.
DOI:10.1002/cplu.201402391

摘要

Efforts have been made in recent years to develop novel functionalisation protocols aimed at imparting multimodality and improved properties to complex carbon-based nanostructures. The incorporation of cleavable bonds to the nanomaterial surface for the controlled release (or exchange) of specific molecules under appropriate chemical and biological settings is relatively unexplored. The design and synthesis of a hetero-bifunctional linker joining a cleavable disulfide moiety for the covalent anchoring of a wide range of thiol end-capped (bio)molecules and a clickable terminal acetylene group is described. The strategy is based on the well-established copper-mediated acetylene-azide coupling reaction between the acetylene linker and single-walled carbon nanotubes decorated with phenylazido pendant arms. As a result, easily post-derivatisable and traceable nanostructured platforms containing a linking group potentially available for a wide range of biological probes are prepared and completely characterised.

  • 出版日期2015-4