Abstract
An important attribute of microRNA-205 (MiR-205) is their potential use as predictive biomarker for anti-radiation of nasopharyngeal carcinoma (NPC), and it is pivotal to monitor the dynamic change of MiR-205 for personalized precise treatment strategies. So far, there are several methods aiming at detecting MiR-205 while rarely has worked out questions such as limited complex detection processes, poor sample detection limit or spending lots of time. Therefore, a method for detecting MiR-205 based on 2D COF nanosheets and fluorescent oligonucleotide probe was constructed and investigated in this study. The 2D COF nanosheet quenches the fluorescence of the fluorescent single-stranded DNA (ss-DNA) probes through fluorescence resonance energy transfer (FRET). The method enables to capture MiR-205 sensitively in aqueous solution with a detection limit of 4.78[Formula: see text]nM in the range 0–500[Formula: see text]nM and [Formula: see text], and the method offers great specificity in that it can distinguish the target miRNA from mismatch nontarget miRNAs. Considering its simple operability and excellent specificity, it has great application prospects in the detection of miRNA biomarker in clinical diagnosis and personalized treatment plan.
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