Abstract
Stimuli response behaviors of cystamine-core dendrimer in the presence of several reducing agents including vitamin C, sodium bisulfite, and dl-Dithiothreitol are described. A competitive redox cleavage and supramolecular aggregate formation model is proposed based on PFG NMR and 1H NMR titration experiments. Furthermore, reduction-responsive release of guest molecules from interior pockets of the cystamine-core dendrimer is confirmed by NOE studies. The results suggest that cystamine-core dendrimer is a versatile scaffold or precursor in the design of reduction-sensitive polymeric nanocapsules for biomedical purposes.
| Original language | English |
|---|---|
| Pages (from-to) | 3777-3783 |
| Number of pages | 7 |
| Journal | Journal of Physical Chemistry B |
| Volume | 115 |
| Issue number | 14 |
| DOIs | |
| State | Published - 14 Apr 2011 |