Antimicrobial silver nanoparticles generated on cellulose nanocrystals

We describe a new approach to the formation of silver nanoparticles (Ag NPs) using cellulose nanocrystals. The process involves per iodate oxidation of cellulose nanocrystals, generating aldehyde functions which, in turn, are used to reduce Ag + into Ag 0 in mild alkaline conditions. The nanoparticl...

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Bibliographic Details
Published in:Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2011-04, Vol.13 (4), p.1557-1562
Main Authors: Drogat, Nicolas, Granet, Robert, Sol, Vincent, Memmi, Abdelmajid, Saad, Naïma, Klein Koerkamp, Carmen, Bressollier, Philippe, Krausz, Pierre
Format: Article
Language:English
Subjects:
Absorption spectroscopy
Brief Communication
Cellulose
Characterization and Evaluation of Materials
Chemical Sciences
Chemistry and Materials Science
Inorganic Chemistry
Lasers
Materials Science
Nanocrystals
Nanoparticles
Nanotechnology
Optical Devices
Optics
Organic chemistry
Photonics
Physical Chemistry
Silver
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Summary:We describe a new approach to the formation of silver nanoparticles (Ag NPs) using cellulose nanocrystals. The process involves per iodate oxidation of cellulose nanocrystals, generating aldehyde functions which, in turn, are used to reduce Ag + into Ag 0 in mild alkaline conditions. The nanoparticles were characterized using transmission electron microscopy (TEM) and ultraviolet–visible absorption spectroscopy. From the microscope studies (TEM) we observed that Ag NPs have spherical shape with a size distribution comprise between 20 and 45 nm. The antibacterial activity was assessed using the minimum inhibitory concentration. The antibacterial assays compare favourably with most of other experiments conducted with the same species.
ISSN:1388-0764
1572-896X
DOI:10.1007/s11051-010-9995-1