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Updated: May 4, 2026

Author Spotlight: Advancements in DNA Nanosensors – Addressing Sensitivity and Selectivity Challenges in Molecular Detection
Published on: February 9, 2024
Efficient phosphodiester cleaving nanozymes resulting from multivalency and local medium polarity control
Marta Diez-Castellnou1, Fabrizio Mancin, Paolo Scrimin
1Department of Chemical Sciences, University of Padova , via Marzolo 1, 35131 Padova, Italy.
Abstract:
The self-organization of Zn(II) complexes on the surface of 1.6-nm diameter gold nanoparticles (nanozymes) allows the spontaneous formation of multiple bimetallic catalytic sites capable to promote the cleavage of a RNA model substrate. We show that by tuning the structure of the nanoparticle-coating monolayer, it is possible to decrease the polarity of the reaction site, and this in turn generates remarkable increments of the cleavage efficiency.
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