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• W3208516630 endingPage "123029" @default.
• W3208516630 startingPage "123029" @default.
• W3208516630 abstract "Since 5-hydroxymethylfurfural (HMF) becomes a neo-forming contaminant with latent harm to human health, development of new method for highly sensitive detection of HMF is extremely desirable. Herein, a novel ratiometric fluorescence sensor based on strand displacement reaction and magnetic separation was designed for sensitive and selective detection of HMF with the help of MnO2 nanosheets. The aldehyde-functionalized DNA (S0-CHO) and HMF competed for binding to amino-functionalized magnetic beads (NH2-MBs). Then, S0-CHO was collected from supernatant by magnetic separation. In the presence of HMF, the obtained S0-CHO induced the formation of T-shaped DNA by strand displacement reaction (SDR), lighting the fluorescence of FAM. In the absence of HMF, no S0-CHO was present to ignite T-shaped DNA. In this situation, fluorescence of Cy5 was turned on. Thus, a ratiometric fluorescence sensor for high-sensitive detection of HMF was developed. The sensor has a wide linear range from 5 nM to 5 μM. It also exhibited high selectivity against other potential interfering substances. It has been successfully applied to analyze HMF in food samples. The method has potential to be expanded to detect other molecules containing aldehyde groups and further be applied in food safety, environment and other fields." @default.
• W3208516630 created "2021-11-08" @default.
• W3208516630 creator A5003799076 @default.
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• W3208516630 date "2022-02-01" @default.
• W3208516630 modified "2023-10-04" @default.
• W3208516630 title "A ratiometric fluorescence sensor for 5-hydroxymethylfurfural detection based on strand displacement reaction" @default.
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• W3208516630 doi "https://doi.org/10.1016/j.talanta.2021.123029" @default.
• W3208516630 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34857348" @default.
• W3208516630 hasPublicationYear "2022" @default.
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