ArticleStructural dynamics (Melville, N.Y.)2016
Ultrafast vibrational dynamics of the DNA backbone at different hydration levels mapped by two-dimensional infrared spectroscopy.
Article in Structural dynamics (Melville, N.Y.), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Influence of DNA Mispairing and Abasic Sites on Duplex Dynamics: A Temperature-Jump Infrared Spectroscopy Study.The journal of physical chemistry letters · 2026Article
- Probing the Hydrogen-Bonding Environment of Individual Bases in DNA Duplexes with Isotope-Edited Infrared Spectroscopy.The journal of physical chemistry. B · 2021Article
- Hydrogen Bonding in Natural and Unnatural Base Pairs-A Local Vibrational Mode Study.Molecules (Basel, Switzerland) · 2021Article
- Vibrational Spectra of Nucleotides in the Presence of the Au Cluster Enhancer in MD Simulation of a SERS Sensor.Biosensors · 2021Article
- 2D-IR studies of cyanamides (NCN) as spectroscopic reporters of dynamics in biomolecules: Uncovering the origin of mysterious peaks.The Journal of chemical physics · 2020Article
- Water Dynamics in the Hydration Shells of Biomolecules.Chemical reviews · 2017Review
- Watching Proteins Wiggle: Mapping Structures with Two-Dimensional Infrared Spectroscopy.Chemical reviews · 2017Review
- DNA's Chiral Spine of Hydration.ACS central science · 2017Article
- Perspective: Structure and ultrafast dynamics of biomolecular hydration shells.Structural dynamics (Melville, N.Y.) · 2017Article
- Molecular couplings and energy exchange between DNA and water mapped by femtosecond infrared spectroscopy of backbone vibrations.Structural dynamics (Melville, N.Y.) · 2017Article
- Preface to the Special Edition on Femtochemistry and "The Hamburg Conference on Femtochemistry 2015 (FEMTO12)".Structural dynamics (Melville, N.Y.) · 2016Article
- Multiple Decay Mechanisms and 2D-UV Spectroscopic Fingerprints of Singlet Excited Solvated Adenine-Uracil Monophosphate.Chemistry (Weinheim an der Bergstrasse, Germany) · 2016Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
DNA oligomers are studied at 0% and 92% relative humidity, corresponding to N < 2 and N > 20 water molecules per base pair. Two-dimensional (2D) infrared spectroscopy of DNA backbone modes between 920 and 1120 cm(-1) maps fluctuating interactions at the DNA surface. At both hydration levels, a frequency fluctuation correlation function with a 300 fs decay and a slow decay beyond 10 ps is derived from the 2D lineshapes. The fast component reflects motions of DNA helix, counterions, and water shell. Its higher amplitude at high hydration level reveals a significant contribution of water to the fluctuating forces. The slow component reflects disorder-induced inhomogeneous broadening.
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