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A sensitive and robust LC-MS/MS method has been developed and validated to simultaneous determine the concentrations of tumulosic acid, dehydrotumulosic acid, polyporenic acid C, cinnamic acid, Atractylenolide I, Atractylenolide II, Atractylenolide III, glycyrrhizic acid, glycyrrhetinic acid, liquiritigenin and isoliquiritin in plasma from rats who received Ling-Gui-Zhu-Gan Decoction extract oral...
Carbon monoxide is a critical gasotransmitter in the body and related with mitochondrial respiration. To date, various fluorescent probes for CO have been well proposed, but two main problems remain. One is that most of the probes are not mitochondria-targeting, even if the probes claim to be able to detect CO in living cells. The other is that the probes for CO display excitation and emission within...
This work reports an efficient, specific and sensitive immunoassay protocol for detection of tumor cells by using inductively coupled plasma mass spectrometry (ICP-MS) with lead sulfide nanoparticles (PbS NPs) as the elemental tags. PbS NPs conjugated with anti-EpCAM target the HepG2 cells with high affinity and specificity. The conditions of the ICP-MS based immunoassay for the detection of HepG2...
Due to its unique features such as high sensitivity, homogeneous format, and independence on fluorescent intensity, fluorescence anisotropy (FA) assay has become a hotspot of study in oligonucleotide-based bioassays. However, until now most FA probes require carefully customized structure designs, and thus are neither generalizable for different sensing systems nor effective to obtain sufficient signal...
A novel and simple fluorophore, p-dimethylaminobenzaldehyde thiosemicarbazone (DMABTS), was prepared in order to find available fluorescent chemosensor for mercuric ion in aquesous solution. DMABTS emitted fluorescence at 448nm in aqueous solution and its fluorescence intensity was completely quenched upon interaction with Hg 2+ ions, which should be attributed to the 1:1 complex formation...
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