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Eu(III) chelate-bonded silica nanoparticle was used as a fluorescent label to develop a highly sensitive time-resolved immunofluorometric assay (TrIFA) for human thyroid stimulating hormone (hTSH). The limit of detection of the assay calculated according to the 2SD method was 0.0007mIUL −1 and became 0.003mIUL −1 when serum-based matrix was used for calibrators, indicating that this...
Identifying cells associated with specific disease states is critically important for the early detection and diagnosis of cancer. To facilitate this task, molecular probes, which bind biomarkers that are either specifically or differentially expressed in diseased cells relative to healthy cells, provide a simple and effective method. This review focuses on the use of DNA aptamers as molecular probes...
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