1579939-91-5Relevant academic research and scientific papers
Highly sensitive salicylic fluorophore for visual detection of picomole amounts of Cu2+
Niamnont, Nakorn,Kimpitak, Nattaporn,Tumcharern, Gamolwan,Rashatasakhon, Paitoon,Sukwattanasinitt, Mongkol
, p. 25215 - 25220 (2013)
Four new fluorophores containing multiple fluorogenic branches of phenylene-ethynylene and salicylic acid Cu2+ binding sites are synthesized and evaluated as Cu2+ sensors in aqueous media. The fluorophore, F4, having a triphenylamine core and three fluorogenic branches, possesses superior sensitivity, selectivity and emission properties for fluorescence quenching detection of Cu2+. This fluorophore exhibits the highest Cu2+ quenching sensitivity in aqueous solution; K sv = 5.79 × 106 M-1. The relatively high fluorescence emission of this fluorophore provides excellent visual contrast in a solid state paper-based sensor that enables naked eye detection of Cu 2+ at the picomole level. The Royal Society of Chemistry.
