Turn-on fluorescence sensing of cyanide ions in aqueous solution at parts-per-billion concentrations. Academic Article

abstract

• A few parts per billion are enough to turn on a novel fluorescent cyanide sensor in aqueous solutions. Because of its inherent electron deficiency, the cationic boron moiety of this sensor not only serves as a high-affinity anion binding site, but also quenches the fluorescence of the pendant fluorophores (see figure; PET=photo-induced electron transfer). Anion binding to the boron center neutralizes the electron-accepting properties of the phosphonium borane unit, leading to a revival of the fluorescence of the pendant fluorophore. 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

authors

• Gabbai, Francois

published proceedings

• Chemistry

author list (cited authors)

• Kim, Y., Huh, H., Lee, M. H., Lenov, I. L., Zhao, H., & Gabbai, F. P.

citation count

• 131

complete list of authors

• Kim, Youngmin||Huh, Hyun-Sue||Lee, Min Hyung||Lenov, Ivan L||Zhao, Haiyan||Gabbaiï, François P

publication date

• February 2011

publisher

• Wiley  Publisher

published in

• Chemistry - A European Journal  Journal

keywords

• Boranes
• Cyanide Fluorescence
• Sensors
• Turn-on

PubMed Central ID

• 21294176

Digital Object Identifier (DOI)

• 10.1002/chem.201002861

start page

• 2057

end page

• 2062

volume

• 17

issue

• 7

URL

• http://dx.doi.org/10.1002/chem.201002861