Fluorenone-Based Fluorescent and Colorimetric Sensors for Selective Detection of I^- Ions: Applications in HeLa Cell Imaging and Logic Gate.

ABSTRACT: Fluorenone-based fluorescent and colorimetric sensors 1 and 2 have been developed that displayed selective detection of iodide ions in the presence of interferences. Sensors displayed the fluorescence emission enhancement response toward I^- with detection limits of 8.0 and 11.0 nM, respectively, which is accomplished through inhibition of intramolecular charge transfer and C=N isomerization. Excellent sensitivity and unique fluorescence enhancement response of sensors toward I^- make them superior because most of the previously reported iodide sensors are based on the fluorescence quenching mechanism and are less sensitive. The sensing potential of sensors toward I^- ions was investigated through ¹H NMR titration, dynamic light scatte

SUBMITTER: Junaid HM 

PROVIDER: S-EPMC8945104 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature