在本策略中,设计,合成了新型的萘二甲酰亚胺衍生物传感器Z2并用于检测肝素的敏感性和选择。Z2适用于检测肝素,在3-10的宽pH范围内不受抗衡离子和生物分子的明显干扰。荧光传感器检测到肝素的机理是由于传感器结构旋转引起分子的能量变化。Z2感测肝素的检出限为7.56 ng / mL。Z2可用于检测0.02%人血清样品中的肝素。
Synthesis and sensor activity of photostable blue emitting 1,8-naphthalimides containing s-triazine UV absorber and HALS fragments
作者:Vladimir B. Bojinov、Ionka P. Panova、Danail B. Simeonov、Nikolai I. Georgiev
DOI:10.1016/j.jphotochem.2010.01.015
日期:2010.2
Two novel highly photostable blue emitting 1,8-naphthalimides, containingactivefragments of both a hindered amine radical scavenger (HALS) and an s-triazine UV absorber were synthesized for the first time. They showed substantially higher photostability in respect to other similar fluorescent brighteners, not containing either UV absorber or HALS component in their molecules. Novel compounds were
A novel near-infrared fluorescence dye NAPTAM as a water-soluble biological probe was developed. The results showed that the probe has a highly sensitive "turn-on" response to BSA in deionized water, and the emission range of near-infrared spectroscopy is 500-800 nm. A limit of detection of NAPTAM sensing BSA was 0.027 μM. The free NAPTAM has almost no emission in aqueous solution, but the sharp increase
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.
(D-π-A)-structured naphthalimidederivative as the two-photon (TP) fluorophore and a 4-dinitrobenzene-ether (DNB) with a strong intramolecular charge transfer (ICT) effect as the recognition moiety, we reported a novel TP bioimaging probe NP-H2S for H2S with improved sensitivity. The NP-H2S exhibits very low background fluorescence in the absence of H2S, and a significant 258-fold fluorescence intensity enhancement