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- W3124341824 abstract "Direct, label-free analysis of nucleic acids via surface-enhanced Raman spectroscopy (SERS) has been continuously expanding its range of applications as an intriguing and powerful analytical tool for the structural characterization of diverse DNA structures. Still, interrogation of nucleic acid tertiary structures beyond the canonical double helix often remains challenging. In this work, we report for the first time the structural identification of DNA triplex structures. This class of nucleic acids has been attracting great interest because of their intriguing biological functions and pharmacological potential in gene therapy, and the ability for precisely engineering DNA-based functional nanomaterials. Herein, structural discrimination of the triplex structure against its duplex and tertiary strand counterparts is univocally revealed by recognizing key markers bands in the intrinsic SERS fingerprint. These vibrational features are informative of the base stacking, Hoogsteen hydrogen bonding and sugar–phosphate backbone reorganization associated with the triple helix formation. This work expands the applicability of direct SERS to nucleic acids analysis, with potential impact on fields such as sensing, biology and drug design." @default.
- W3124341824 created "2021-02-01" @default.
- W3124341824 creator A5076287357 @default.
- W3124341824 creator A5087089245 @default.
- W3124341824 date "2021-01-27" @default.
- W3124341824 modified "2023-10-17" @default.
- W3124341824 title "Structural Recognition of Triple-Stranded DNA by Surface-Enhanced Raman Spectroscopy" @default.
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- W3124341824 doi "https://doi.org/10.3390/nano11020326" @default.
- W3124341824 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7912272" @default.
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