Naphthalimide-based AIE-active receptor: HSO 4 - /SO 4 2- sensing and detection of Pb 2+ by receptor-anion ensemble in aqueous medium

Herein we report a naphthalimide-chromophore based blue light emitting Aggregation-Induced Emission (AIE) active fluorescent chemo-sensor for the selective turn-on fluorescent sensing of HSO /SO ions in the aqueous medium through in-depth spectroscopic and microscopic analysis. HSO /SO sensing in aq...

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Bibliographic Details
Published inSpectrochimica acta. Part A, Molecular and biomolecular spectroscopy Vol. 310; p. 123879
Main Authors Pandit, Sulekha Kumari, Das, Gopal
Format Journal Article
LanguageEnglish
Published England 05.04.2024
Subjects
Fluorescence sensing
Photo induced-electron transfer
Logic gate
Aggregation-Induced Emission
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Summary:Herein we report a naphthalimide-chromophore based blue light emitting Aggregation-Induced Emission (AIE) active fluorescent chemo-sensor for the selective turn-on fluorescent sensing of HSO /SO ions in the aqueous medium through in-depth spectroscopic and microscopic analysis. HSO /SO sensing in aqueous environment is quite challenging due to its high hydration energy, however Nap-1 showed a detection limit down to the micromolar range without any interference from the other tested competitive anions. The sensing mechanism has been discussed thoroughly. Nap-1 was further applied in detection of HSO /SO ions in real water as well as in fabrication of an economical paper strip model. The receptor-anion ensemble was further used for the sensing of heavy metal ions such as Pb in the micromolar range. Nap-1 was used for the construction of two inputs INHIBIT type molecular logic gate.
ISSN:1873-3557