![Quantitative SERS Detection of Uric Acid via Formation of Precise Plasmonic Nanojunctions within Aggregates of Gold Nanoparticles and Cucurbit[n]uril](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F61682.jpg&w=3840&q=50)
Selective recognition induced nanostructures in a cucurbit[7]uril-based host-guest system: micelles, nanorods and
Ji-Sheng Yu1, Fu-Gen Wu, Yu Zhou
1Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China. yuzhw@tsinghua.edu.cn.
Abstract:
The selective recognition between CB[7] and hexadecyl dimethyl benzyl ammonium chloride (HDBAC) was investigated using ITC and NMR. The long alkyl-bearing surfactant can form micelles when dispersed in water. We found that progressive addition of CB[7] into the HDBAC dispersion induced the transformation of micelles into various self-organized structures including nanorods and nanosheets as evidenced by DLS, TEM, AFM and SAXS. A rational mechanism is proposed to illustrate the host-guest interaction induced transformation process.
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