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• W4380852854 endingPage "131874" @default.
• W4380852854 startingPage "131874" @default.
• W4380852854 abstract "Diethylstilbestrol (DES) is a threatening factor to the human endocrine system. Here, we reported a DNA origami-assembled plasmonic dimer nanoantenna-based surface-enhanced Raman scattering (SERS) biosensor for measuring trace DES in foods. A critical factor influencing the SERS effect is interparticle gap modulation of SERS hotspots with nanometer-scale accuracy. DNA origami technology aims to generate naturally perfect structures with nano-scale precision. Exploiting the specificity of base-pairing and spatial addressability of DNA origami to form plasmonic dimer nanoantenna, the designed SERS biosensor generated electromagnetic-enhancement and uniform-enhancement hotspots to improve sensitivity and uniformity. Owing to their high target-binding affinity, aptamer-functionalized DNA origami biosensors transduced the target recognition into dynamic structural transformations of plasmonic nanoantennas, which were further converted to amplified Raman outputs. A broad linear range from 10−10 to 10−5 M was obtained with the detection limit of 0.217 nM. Our findings demonstrate the utility of aptamer-integrated DNA origami-based biosensors as a promising approach for trace analysis of environmental hazards." @default.
• W4380852854 created "2023-06-16" @default.
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• W4380852854 date "2023-09-01" @default.
• W4380852854 modified "2023-09-27" @default.
• W4380852854 title "DNA origami-mediated plasmonic dimer nanoantenna-based SERS biosensor for ultrasensitive determination of trace diethylstilbestrol" @default.
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• W4380852854 doi "https://doi.org/10.1016/j.jhazmat.2023.131874" @default.
• W4380852854 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37379602" @default.
• W4380852854 hasPublicationYear "2023" @default.
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