Autor segons l'article: Guerrini L; Alvarez-Puebla RA
Departament: Química Física i Inorgànica
e-ISSN: 2079-4991
Autor/s de la URV: Alvarez Puebla, Ramon Angel / Guerrini, Luca
Paraules clau: Triplex Surface-enhanced raman spectroscopy Plasmonic nanoparticles Dna
Resum: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. 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 du-plex 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.
Àrees temàtiques: Physics, applied Nanoscience & nanotechnology Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) General materials science General chemical engineering Engenharias ii Chemistry, multidisciplinary Chemical engineering (miscellaneous) Chemical engineering (all)
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: ramon.alvarez@urv.cat luca.guerrini@urv.cat
Identificador de l'autor: 0000-0003-4770-5756 0000-0002-2925-1562
Data d'alta del registre: 2024-07-27
Volum de revista: 11
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.mdpi.com/2079-4991/11/2/326
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Nanomaterials. 11 (2): 1-9
Referència de l'ítem segons les normes APA: Guerrini L; Alvarez-Puebla RA (2021). Structural recognition of triple-stranded DNA by surface-enhanced raman spectroscopy. Nanomaterials, 11(2), 1-9. DOI: 10.3390/nano11020326
DOI de l'article: 10.3390/nano11020326
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2021
Tipus de publicació: Journal Publications