Hydrosol of 2,2′ Biquinoline microstructures exhibits aggregation induced enhanced emission.
Proton triggered yellowish green emission is observed under UV excitation.
2:1 complex of 2,2′ Biquinoline with Zn2+ shows sky blue emission under UV excitation.
2,2′ Biquinoline hydrosol is used as potential turn on senor for Zn2+ and H+ ion in water.