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- W4383186587 abstract "Staphylococcus aureus (S. aureus) is a common foodborne pathogen that threatens human health and safety. It is significant to develop sensitive detection methods for the monitoring of S. aureus contamination in food and environment. Herein, a novel machinery based on aptamer recognition, DNA walker, and rolling circle amplification (RCA) was designed, which can form unique DNA nanoflower and subsequently detect low-level S. aureus contamination in samples. To this end, two rationally designed DNA duplexes were modified on the surface of the electrode to identify S. aureus through the high affinity between aptamers and S. aureus. Combined with the repeated movement of DNA walker machinery on the electrode surface and RCA technology, a unique DNA nanoflower structure was formed. This can effectively transform the biological information of aptamer recognition of S. aureus into a significantly amplified electrochemical signal. Through reasonable design and optimization of the parameters of each part, the linear response range of the S. aureus biosensor is from 60 to 6 × 107 CFU/mL and the detection limit is as low as 9 CFU/mL." @default.
- W4383186587 created "2023-07-06" @default.
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- W4383186587 date "2023-01-01" @default.
- W4383186587 modified "2023-09-23" @default.
- W4383186587 title "Quantitative Determination of Staphylococcus aureus Using Aptamer-Based Recognition and DNA Amplification Machinery" @default.
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- W4383186587 doi "https://doi.org/10.1007/978-1-0716-3279-6_1" @default.
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- W4383186587 hasPublicationYear "2023" @default.
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