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Updated: Mar 23, 2026
Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
Ion-mediated single-molecular optical switching and sensing based on the fluorophore-tethered calix[4]pyrrole
Divya Sareen1, Ji Hye Lee, Hyonseok Hwang
1Department of Chemistry, Kangwon National University, Chun Cheon 200-701, Korea. chhlee@kangwon.ac.kr.
Abstract:
The design and synthesis of the first asymmetrically "two-walled"meso-substituted calix[4]pyrrole tethered by a fluorophore and its subsequent implication as an archetype sequential 'on-off-on-off' fluorescent single-molecular switch are reported. The current system permits us to extend the sensitivity up to sub-nanomolar levels with the detection limit as low as 0.4 nM.
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