A heptamethine cyanine-based sensor (1) was designed and synthesized by incorporating heptamethine cyanine fluorophore and methylpiperazine. Sensor 1 exhibited good response to the change of pH levels, and a large Stokes shift (>100 nm) was obtained. Fluorescent image experiments in living cells further demonstrated its potential applications in biological systems.
WU, AIBIN and DUAN, LIPING
"A near-infrared fluorescent sensor for H^+ in aqueous solution and living cells,"
Turkish Journal of Chemistry: Vol. 35:
3, Article 11.
Available at: https://journals.tubitak.gov.tr/chem/vol35/iss3/11