| Abstract
| - A supramolecular porous nanosphere is constructed from amphiphilic cholic acid-modified cyclodextrin triggeredby guest sodium 1-naphthylamino-4-sulfonate and is comprehensively characterized by nuclear magnetic resonance(NMR), light scattering, transmission electron microscopy, and gas adsorption experiments. The results obtained showthat the porous nanosphere with the radius of 25−35 nm has moderate nitrogen adsorption ability. Further NMR,circular dichroism, and the fluorimetric titrations on the self-assembling behavior in aqueous solution reveal that thesubstituting group of the guest molecule and pH values are the key to induce the formation of the porous nanosphere.
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