Control of the Supramolecular Excimer Formation of Thioflavin T within a Cucurbit[8]uril Host: A Fluorescence On/Off Mechanism

Jyotirmayee Mohanty, Sharmistha Dutta Choudhury, Hari P. Upadhyaya, Achikanath C. Bhasikuttan, Haridas Pal

Chemistry - A European Journal · 2009 · 102 citations · 28 references

Concepts

Abstract

On or off? A new excimer band at lambda = 570 nm was visualized during the noncovalent host-guest interaction between thioflavin T (ThT) and cucurbit[8]uril (CB8). Controlled dissociation of this assembly in the presence of Ca(2+) was demonstrated as an on/off fluorescence switch (see picture).

References

28