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Supramolecular Dendrimers: Convenient Synthesis by Programmed Self‐Assembly and Tunable Thermoresponsivity
Authors:Dr. Partha S. Ghosh  Prof. Dr. Andrew D. Hamilton
Affiliation:1. Department of Chemistry, Yale University, 225 Prospect Street, New Haven, CT 06520‐8107 (USA);2. Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA (UK)
Abstract:We report here the noncovalent synthesis of thermosensitive dendrimers. Short oligoguanosine strands were linked to the focal point of a dendron by using “click chemistry”, and quadruplex formation was used to drive the self‐assembly process in the presence of metal ions. The dynamic nature of these noncovalent assemblies can be exploited to create combinatorial libraries of dendrimers as demonstrated by the co‐assembly of two components. These supramolecular dendrimers showed thermoresponsive behavior that can be tuned by varying the templating cations or the number of guanines in the oligonucleotide strand.
Keywords:click chemistry  self‐assembly  stimuli‐responsive  supramolecular dendrimers
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