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Erschienen in: Cellulose 2/2019

13.11.2018 | Original Paper

Synthesis of silver nanoparticles using dialdehyde cellulose nanocrystal as a multi-functional agent and application to antibacterial paper

verfasst von: Qinghua Xu, Liqiang Jin, Yulu Wang, Hao Chen, Menghua Qin

Erschienen in: Cellulose | Ausgabe 2/2019

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Abstract

Development of a reliable and rapid process for synthesis of stable silver nanoparticles using nanocellulose is highly desired. In the present study, we report an efficient approach for the synthesis of stable silver nanoparticles (AgNPs) using dialdehyde cellulose nanocrystal (DACNC) as both reducing and stabilizing agent. The periodated cellulose nanocrystals (CNCs) were able to reduce silver ions to obtain cellulose nanocrystal–AgNPs (CNC–AgNPs) composites with high Ag percentage. The resulting composites were characterized by using UV–Vis spectroscopy, fourier infrared spectroscopy (FT-IR), X-ray diffraction (XRD), atomic absorption spectroscopy (AAS), thermogravimetric analysis (TGA) and transmission electron microscopy (TEM). Furthermore, their antimicrobial activities were investigated. The formation of AgNPs was evidenced by the surface plasmon resonance peak at around 400 nm. XRD data showed diffraction peaks at 2θ 38.33º, 44.55º, 64.27º, 77.66º, which can be indexed to (111), (200), (220), (311), and (222) planes of pure silver, indicating the successful synthesis of silver nanoparticles. The TEM images of CNC–AgNPs showed spherical AgNPs with sizes from several nanometers to 30 nm on the cellulose nanocrystal surfaces. The composites showed high antibacterial activities against Escherichia coli and Staphylococcus aureus. When the CNC–AgNPs was added into the pulp fibers, the obtained handsheets also displayed strong antibacterial activities with higher strength properties and a lower air permeability, indicating potential applications in food packaging materials.

Graphical abstract

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Literatur
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Zurück zum Zitat Xavier JR, Desai P, Varanasi VG, Al-Hashimi I, Gaharwar AK (2015) Advanced nanomaterials: promises for improved dental tissue regeneration. In: Kishen A (ed) Nanotechnology in endodontics: current and potential clinical applications. Springer, Switzerland, pp 5–22 Xavier JR, Desai P, Varanasi VG, Al-Hashimi I, Gaharwar AK (2015) Advanced nanomaterials: promises for improved dental tissue regeneration. In: Kishen A (ed) Nanotechnology in endodontics: current and potential clinical applications. Springer, Switzerland, pp 5–22
Metadaten
Titel
Synthesis of silver nanoparticles using dialdehyde cellulose nanocrystal as a multi-functional agent and application to antibacterial paper
verfasst von
Qinghua Xu
Liqiang Jin
Yulu Wang
Hao Chen
Menghua Qin
Publikationsdatum
13.11.2018
Verlag
Springer Netherlands
Erschienen in
Cellulose / Ausgabe 2/2019
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-018-2118-3

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