A silver nanoparticle colloid was prepared by a modified Tollens method using D-glucose as the reduction agent. The obtained nanoparticles were used for the modification of pine, linter and recycled cellulose fibers. Although the silver contents were relatively low (0.05-0.13 wt.%), the cellulose-sheets prepared from the modified fibers show improved mechanical and viscoelastic properties. The tensile index (strength) increased with up to 30% in comparison to the index of the sheets obtained from the untreated fibers. The influence of the nanoparticles on the viscoelastic properties of the cellulose sheets was investigated by dynamic mechanical analysis (DMA) in the temperature range from -120 to 20 degrees C and with a force frequency of 100Hz. A broad relaxation transition positioned at -80 degrees C was observed in the loss modulus spectrum of all the cellulose sheets, while the Ag-modified sheets exhibited higher storage moduli values in the whole temperature range. The antimicrobi...al activity tests show that the pine, silver and recycled cellulose fiber sheets with silver nanoparticles can be successfully employed to prevent the viability and growth of the common pathogens Staphylococcus aureus, Escherichia coli and Candida albicans.
TY - JOUR
AU - Csoka, Levente
AU - Božanić, Dušan K.
AU - Nagy, Veronika
AU - Dimitrijević-Branković, Suzana
AU - Luyt, Adriaan S.
AU - Grozdits, George
AU - Đoković, Vladimir
PY - 2012
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2110
AB - A silver nanoparticle colloid was prepared by a modified Tollens method using D-glucose as the reduction agent. The obtained nanoparticles were used for the modification of pine, linter and recycled cellulose fibers. Although the silver contents were relatively low (0.05-0.13 wt.%), the cellulose-sheets prepared from the modified fibers show improved mechanical and viscoelastic properties. The tensile index (strength) increased with up to 30% in comparison to the index of the sheets obtained from the untreated fibers. The influence of the nanoparticles on the viscoelastic properties of the cellulose sheets was investigated by dynamic mechanical analysis (DMA) in the temperature range from -120 to 20 degrees C and with a force frequency of 100Hz. A broad relaxation transition positioned at -80 degrees C was observed in the loss modulus spectrum of all the cellulose sheets, while the Ag-modified sheets exhibited higher storage moduli values in the whole temperature range. The antimicrobial activity tests show that the pine, silver and recycled cellulose fiber sheets with silver nanoparticles can be successfully employed to prevent the viability and growth of the common pathogens Staphylococcus aureus, Escherichia coli and Candida albicans.
PB - Elsevier Sci Ltd, Oxford
T2 - Carbohydrate Polymers
T1 - Viscoelastic properties and antimicrobial activity of cellulose fiber sheets impregnated with Ag nanoparticles
EP - 1146
IS - 2
SP - 1139
VL - 90
DO - 10.1016/j.carbpol.2012.06.065
ER -
@article{
author = "Csoka, Levente and Božanić, Dušan K. and Nagy, Veronika and Dimitrijević-Branković, Suzana and Luyt, Adriaan S. and Grozdits, George and Đoković, Vladimir",
year = "2012",
abstract = "A silver nanoparticle colloid was prepared by a modified Tollens method using D-glucose as the reduction agent. The obtained nanoparticles were used for the modification of pine, linter and recycled cellulose fibers. Although the silver contents were relatively low (0.05-0.13 wt.%), the cellulose-sheets prepared from the modified fibers show improved mechanical and viscoelastic properties. The tensile index (strength) increased with up to 30% in comparison to the index of the sheets obtained from the untreated fibers. The influence of the nanoparticles on the viscoelastic properties of the cellulose sheets was investigated by dynamic mechanical analysis (DMA) in the temperature range from -120 to 20 degrees C and with a force frequency of 100Hz. A broad relaxation transition positioned at -80 degrees C was observed in the loss modulus spectrum of all the cellulose sheets, while the Ag-modified sheets exhibited higher storage moduli values in the whole temperature range. The antimicrobial activity tests show that the pine, silver and recycled cellulose fiber sheets with silver nanoparticles can be successfully employed to prevent the viability and growth of the common pathogens Staphylococcus aureus, Escherichia coli and Candida albicans.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Viscoelastic properties and antimicrobial activity of cellulose fiber sheets impregnated with Ag nanoparticles",
pages = "1146-1139",
number = "2",
volume = "90",
doi = "10.1016/j.carbpol.2012.06.065"
}
Csoka, L., Božanić, D. K., Nagy, V., Dimitrijević-Branković, S., Luyt, A. S., Grozdits, G.,& Đoković, V.. (2012). Viscoelastic properties and antimicrobial activity of cellulose fiber sheets impregnated with Ag nanoparticles. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 90(2), 1139-1146.
https://doi.org/10.1016/j.carbpol.2012.06.065
Csoka L, Božanić DK, Nagy V, Dimitrijević-Branković S, Luyt AS, Grozdits G, Đoković V. Viscoelastic properties and antimicrobial activity of cellulose fiber sheets impregnated with Ag nanoparticles. in Carbohydrate Polymers. 2012;90(2):1139-1146.
doi:10.1016/j.carbpol.2012.06.065 .
Csoka, Levente, Božanić, Dušan K., Nagy, Veronika, Dimitrijević-Branković, Suzana, Luyt, Adriaan S., Grozdits, George, Đoković, Vladimir, "Viscoelastic properties and antimicrobial activity of cellulose fiber sheets impregnated with Ag nanoparticles" in Carbohydrate Polymers, 90, no. 2 (2012):1139-1146,
https://doi.org/10.1016/j.carbpol.2012.06.065 . .
