Biocompatible Folic-Acid-Strengthened Ag–Ir Quantum Dot Nanozyme for Cell and Plant Root Imaging of Cysteine/Stress and Multichannel Monitoring of Hg2+ and Dopamine
Zhengquan Yan,
Yulian Tang,
Zhaoran Zhang
et al.
Abstract:To boost the enzyme-like activity, biological compatibility, and antiaggregation effect of noble-metal-based nanozymes, folic-acid-strengthened Ag−Ir quantum dots (FA@ Ag−Ir QDs) were developed. Not only did FA@Ag−Ir QDs exhibit excellent synergistic-enhancement peroxidase-like activity, high stability, and low toxicity, but they could also promote the lateral root propagation of Arabidopsis thaliana. Especially, ultratrace cysteine or Hg 2+ could exclusively strengthen or deteriorate the inherent fluorescence… Show more
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