Multiresponsive supramolecular nanogated ensembles.

@article{Liu2009MultiresponsiveSN,
  title={Multiresponsive supramolecular nanogated ensembles.},
  author={Rui Ying Liu and Ying Zhang and Pingyun Feng},
  journal={Journal of the American Chemical Society},
  year={2009},
  volume={131 42},
  pages={15128-9}
}
A new multiresponsive supramolecular nanogated ensemble has been developed by introducing beta-cyclodextrin (beta-CD) into polymer-grafted mesoporous silica. The cross-linked polymer produced by host-guest interaction between beta-CD and diazo-linker works as a gatekeeper to control the release of trapped molecules from hybrid materials. The presence of UV light, alpha-CD, or disulfide reducing agent can effectively open the polymeric network and release the loading with different dynamics. 

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The association constants constants for 1:1 complexation of trans-azo with R-CD and -CD

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