Issue 21, 2023

Boron nitride embedded in chitosan hydrogel as a hydrophobic, promising metal-free, sustainable antibacterial material

Abstract

Evaporation-induced co-assembly of boron nitride-exfoliated chitosan hydrogel provides micrometer-thick boron nitride-filled chitosan nanocomposite films. Owing to the favorable interfacial interaction of NH2 belonging to chitosan and boron center in boron nitride (BN) sheets, a loading of up to 60 wt% of boron nitride could be entrapped inside, without compromising the film quality or its flexibility. Notably, increasing boron nitride loading alters the wettability of the resulting films and improves its mechanical and thermal properties. Enhanced biological response (e.g., antibacterial properties) also correlates with the entrapped amount of boron nitride, which highlights the potential use of the latter as metal-free, antibacterial surface coating materials.

Graphical abstract: Boron nitride embedded in chitosan hydrogel as a hydrophobic, promising metal-free, sustainable antibacterial material

Supplementary files

Article information

Article type
Paper
Submitted
21 Jul 2023
Accepted
18 Sep 2023
First published
20 Sep 2023
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2023,4, 5191-5199

Boron nitride embedded in chitosan hydrogel as a hydrophobic, promising metal-free, sustainable antibacterial material

N. Hammi, M. Kędzierska, N. Wrońska, N. Katir, J. Dhainaut, S. Royer, K. Lisowska, M. Bryszewska, K. Miłowska and A. El Kadib, Mater. Adv., 2023, 4, 5191 DOI: 10.1039/D3MA00445G

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