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Updated: May 14, 2026

Fabrication of Antibacterial Graphene Oxide/Copper Nanocomposites
Published on: October 4, 2024
Coordination chemistry for antibacterial materials: a monolayer of a Cu(2+) 2,2'-bipyridine complex grafted on a
Piersandro Pallavicini1, Giacomo Dacarro, Pietro Grisoli
1inLAB, Dipartimento di Chimica, Università di Pavia, viale Taramelli, 12, 27100 Pavia, Italy. piersandro.pallavicini@unipv.it
Abstract:
A propyltrimethoxysilane-modified 2,2'-bipyridine ligand is synthesized and its acetonitrile solutions are used to prepare monolayers of the molecule on glass surfaces. Absorption and X-ray photoelectron spectroscopy demonstrate that the modified glass surfaces bind Cu(2+) with a 1:1 ratio with respect to the 2,2'-bipyridine moieties under the chosen preparative conditions, producing materials bearing 0.016 μg cm(-2) of copper. Although in trace amounts, the bound Cu(2+) cations exert a significant microbicidal effect against Escherichia coli and Staphylococcus aureus.
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