Ion-mediated single-molecular optical switching and sensing based on the fluorophore-tethered calix[4]pyrrole. Issue 34 (6th April 2016)

• Record Type: Journal Article
• Authors: Sareen, Divya; Lee, Ji Hye; Hwang, Hyonseok; Yoo, Soeun; Lee, Chang-Hee
• Is Part Of: Chemical communications. Volume 52:Issue 34(2016)
• Page Start: 5852
• Page End: 5855
• Publication Date: 2016-04-06
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c6cc01679k
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : The first asymmetrically meso -aryl substituted "two-walled" calix[4]pyrrole is explored as a single-site sequential ' on – off – on – off ' fluorescent switch with sub-nanomolar sensitivity. 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.