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Updated: Jan 6, 2026

Author Spotlight: Advancements in DNA Nanosensors – Addressing Sensitivity and Selectivity Challenges in Molecular Detection
Published on: February 9, 2024
Nanoceria as a DNase I mimicking nanozyme
Fang Xu1, Qinwei Lu2, Po-Jung Jimmy Huang3
1Department of Pharmaceutical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China and Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada. liujw@uwaterloo.ca.
Abstract:
We herein communicate the DNase I like activity of nanoceria (CeO2 nanoparticles). Both CeO2 and DNase I cleave polyadenine (poly-A) DNA down to ∼5-mer fragments as the major products, although further cleavage to even shorter fragments was observed with CeO2. Mass spectrometry indicates a hydrolytic cleavage mechanism instead of oxidative cleavage.
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