Chemical Research in Chinese Universities ›› 2026, Vol. 42 ›› Issue (2): 477-484.doi: 10.1007/s40242-026-6061-9

Previous Articles     Next Articles

A Dual-channel Probe for Detection of O2·- Based on 19F Nuclear Magnetic Resonance and Surface Enhanced Raman Spectroscopy

ZHOU Juyue, JIANG Baian, XU Suying, WANG Leyu   

  1. State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
  • Received:2026-01-15 Online:2026-04-01 Published:2026-04-02
  • Contact: XU Suying,E-mail:syxu@mail.buct.edu.cn E-mail:syxu@mail.buct.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos. 22274007, 22334002, 22322402).

Abstract: As a key precursor of reactive oxygen species (ROS), the superoxide anion (O2·-) plays a pivotal role in maintaining redox homeostasis in living systems. However, the accurate and reliable detection of O2·- remains a significant challenge, particularly for in vivo detection. Herein, we report a dual-channel probe for O2·- detection based on 19F nuclear magnetic resonance (19F NMR) and surface-enhanced Raman scattering (SERS) spectroscopy. Through structure engineering, the molecular probe (FS) was designed, which selectively reacted with O2·-, generating a characteristic chemical shift in 19F NMR. Notably, the fragment released upon reaction with O2·- serves as an effective SERS reporter, thereby enabling complementary dual-channel sensing of superoxide anion. Furthermore, as a proof-of-concept, probe FS was explored as a synthetic biomarker for urinalysis to detect O2·- generated in vivo and found clear different metabolic patterns between healthy and liver-injured models, suggesting its potential for in vivo detection.

Key words: 19F nuclear magnetic resonance (NMR), Surface-enhanced Raman scattering (SERS), O2·- detection, Urinalysis