## Abstract Three kinds of fluorescence enhancement result from the interaction of 2‐__p__‐toluidinylnaphthalene‐6‐sulfonate and calf‐skin collagen. They are negatively cooperative, independent, and highly cooperative fluorescence enhancement. In the independent region at pH 3.7, the binding number
Interaction of 6-p-toluidinylnaphthalene-2-sulfonate with β-cyclodextrin
✍ Scribed by Juziro Nishijo; Mayumi Nagai; Masako Yasuda; Eriko Ohno; Yuko Ushiroda
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 725 KB
- Volume
- 84
- Category
- Article
- ISSN
- 0022-3549
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Fluorescence of 2-p-toluidinylnaphthalene-6-sulfonate (TNS) was enhanced in the presence of maltooligosaccharides, amylose, and other a-glucans. The dependence of relative TNS fluorescence intensity per glucose unit on chain length of oligosaccharides was examined. The values of binding constant and
2-p-Toluidinylnaphthalene-6-sulfonate (2,6-TNS) is a compound which is barely fluorescent in pure water but whose fluorescence can be strongly enhanced if the environment becomes hydrophobic, i.e. by the addition of suitable substrates such as proteins or 1,4-␣-Dglucans. The enhancement of fluoresce
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## Abstract This study focused on the use of NMR techniques as a tool for the investigation of complex formation between proparacaine and cyclodextrins (CDs) or __p__‐sulfonic acid calix[6]arene. The pH dependence of the complexation of proparacaine with β‐CD and __p__‐sulfonic acid calix[6]arene w