Sketch the sequence of chemical and photophysical process that occurs in pH determination by means of a QD–pH-sensitive dye conjugate. Draw a simple picture of the recognition–transduction mechanism...

Sketch the sequence of chemical and photophysical process that occurs in pH determination by means of a QD–pH-sensitive dye conjugate.

Draw a simple picture of the recognition–transduction mechanism in a QD-based nucleic acid sensor based on the molecular-beacon approach in the signal-on and signal-off configurations.

Q209;

What condition should be fulfilled in order to achieve chemical excitation of QD fluorescence? Write the mechanism of QD chemiluminescence involving hydrogen peroxide as a source of electron donors and acceptors.

How can QD chemiluminescence be applied for the determination of small-molecule compounds and metal ions?