Rational design of a rapid fluorescent approach for detection of inorganic fluoride in MeCN–H2O: a new fluorescence switch based on N-aryl-1,8-naphthalimide
aggregation-induced emission (AIE) based fluorescent probes, TPANI-DNs and PCZNI-DNs, have been designed and synthesized for “turn-on” detection of H2S. Chromophore napthalimide fused triphenylamine (or phenylcarbazole) unit as fluorophore in combination with 2,4-dinitrobenzenesulfonyl as recognition moiety constructed probes. The design strategy of the twisted D-π-A structure can efficiently transform the
A new N-imidazolyl-1,8-naphthalimide based fluorescence sensor for fluoride detection
作者:Junqi Wang、Lingyun Yang、Chen Hou、Haishi Cao
DOI:10.1039/c2ob25903f
日期:——
A chemosensor is reported with high sensitivity and selectivity for detection of fluoride anion. The recognition mechanism is attributed to a fluoride-triggered disruption of the hydrogen bond between imidazole and naphthalimide moieties, resulting in a noncoplanar geometry with low fluorescence.
N-Phenyl-1,8-naphthalimide based fluorescent probes are reported with various positions of dinitrobenzenesulfonyl (DNs) quencher on the phenyl ring. The probe with âDNs at the ortho-position was predicted to show better response compared to those with the quencher at the meta and para positions. The probe showed selective and very fast response (response time, tR = 1 min) toward thiophenol with 20-fold offâon fluorescence sensitivity. Thiophenol sensing applications by the probe were demonstrated via water sample analysis and live cell imaging studies.
Rational design of a rapid fluorescent approach for detection of inorganic fluoride in MeCN–H<sub>2</sub>O: a new fluorescence switch based on N-aryl-1,8-naphthalimide
作者:Angela Bamesberger、Christopher Schwartz、Qiao Song、Weiwei Han、Zhi Wang、Haishi Cao
DOI:10.1039/c3nj01389h
日期:——
A desilylation based sensor showed high selectivity and sensitivity to fluoride in MeCN–H2O media.