https://www.selleckchem.com/pr....oducts/prostaglandin
Monitoring ctDNA in blood is important for cancer management. Here, a one-step single particle counting approach was developed for directly quantifying ctDNA in plasma. Hairpin DNA containing a triple helix stem was immobilized onto QD 585 as a probe. The hairpin was opened by the target, and therefore hybridized with assistant DNA on QD 655, resulting in an aggregate of QD 585 and QD 655. The two-color QD aggregate was regarded as the target. Observed under a single particle transmission grating-based spectral microsc
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