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- W3189491454 abstract "Currently, metal-enhanced fluorescence (MEF) is an emerging effective technology for sensitive bio-detection. In this report, the distance between Au nanorods (Au NRs) and NIR Ag2S quantum dots (Ag2S QDs) is precisely regulated by DNA with different chain lengths. The experimental results show that the best MEF effect can be obtained when the distance is about 8 nm. Based on the result, Au NRs and Ag2S QDs were modified with DNA at specific distances, which were used for accurate detection of prostate cancer marker PCA3 with high sensitivity and selectivity. And the designed biosensor show a good linear relationship in the 5−500 pM and a low detection limit of 1.42 pM (S/N = 3) for PCA3. Importantly, the designed metal-enhanced NIR fluorescence satellite structure probe have been successfully applied for sensing PCA3 in human serum samples and lysates of prostate cancer cells (1, 5 and 10 cells), which has significant potential in the field of biosensing, biological analysis and clinical diagnosis." @default.
- W3189491454 created "2021-08-16" @default.
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- W3189491454 date "2021-11-01" @default.
- W3189491454 modified "2023-10-02" @default.
- W3189491454 title "DNA precisely regulated Au nanorods/Ag2S quantum dots satellite structure for ultrasensitive detection of prostate cancer biomarker" @default.
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- W3189491454 doi "https://doi.org/10.1016/j.snb.2021.130585" @default.
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