English

Single DNA Electron Spin Resonance Spectroscopy in Aqueous Solutions

Biological Physics 2020-02-21 v1 Quantum Physics

Abstract

Magnetic resonance spectroscopy of single biomolecules under near-physiological conditions may substantially advance understanding of biological function, yet remains very challenging. Here we use nitrogen-vacancy centers in diamonds to detect electron spin resonance spectra of individual, tethered DNA duplexes labeled with a nitroxide spin label in aqueous buffer solutions at ambient temperatures. This paves the way for magnetic resonance studies on single biomolecules and their inter-molecular interactions in a native-like environment.

Keywords

Cite

@article{arxiv.2002.08425,
  title  = {Single DNA Electron Spin Resonance Spectroscopy in Aqueous Solutions},
  author = {Fazhan Shi and Fei Kong and Pengju Zhao and Xiaojun Zhang and Ming Chen and Sanyou Chen and Qi Zhang and Mengqi Wang and Xiangyu Ye and Zhecheng Wang and Zhuoyang Qin and Xing Rong and Jihu Su and Pengfei Wang and Peter Z. Qin and Jiangfeng Du},
  journal= {arXiv preprint arXiv:2002.08425},
  year   = {2020}
}

Comments

22 pages, 14 figures

R2 v1 2026-06-23T13:47:22.078Z