Antifungal effects of copper and silver nanoparticles against white and brown-rot fungi

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F17%3A43910028" target="_blank" >RIV/62156489:43410/17:43910028 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/17:73583592

Result on the web

<a href="http://dx.doi.org/10.1007/s10853-016-0565-5" target="_blank" >http://dx.doi.org/10.1007/s10853-016-0565-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10853-016-0565-5" target="_blank" >10.1007/s10853-016-0565-5</a>

Result language

angličtina

Original language name

Antifungal effects of copper and silver nanoparticles against white and brown-rot fungi

Original language description

In this study, the antifungal effects of copper and silver nano-particles against two wood-rotting fungi were investigated. European beech (Fagus sylvatica L.) and Scots pine (Pinus sylvestris L.) sapwood specimens of dimensions 50 x 25 x 15 mm3 were vacuum impregnated using dispersions of copper and silver nano-particles within two concentrations, i.e. 1 and 3 g/l. Beech wood specimens were tested against white-rot fungus (Trametes versicolor) and pine wood against brown-rot fungus (Poria placenta) according to EN113. Furthermore, leachability, retention and protection efficiency (mass loss due to decay) were analyzed afterwards. The highest value of retention was observed for pine sapwood (~ 2 kg.m-3) for both nanoparticle solutions. The amount of nano-particles in the wood did not increase proportionally with an increasing concentration, but only 1.5-2 times increase was reached. An average leaching of 15% to 35% was observed for copper nano-particles, depending on used wood species and concentration. Significantly lower leaching (max. 15 %) was observed for pine sapwood impregnated by silver nano-particles with a concentration of 3 g/l. The highest antifungal effect (under 5 % of mass loss) against both tested fungi was found for nano-copper treatment at the concentration of 3 g/l. However, this effect of treatment seems to be almost negligible after the leaching test. Therefore, this study aims to present fundamental material properties of wood treated with copper and silver nano-particles, and provide groundwork for further research (e.g. fixation of substances in the wood structure, etc.).

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20502 - Paper and wood

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Materials Science

ISSN

0022-2461

e-ISSN

—

Volume of the periodical

52

Issue of the periodical within the volume

5

Country of publishing house

US - UNITED STATES

Number of pages

10

Pages from-to

2720-2729

UT code for WoS article

000389611000028

EID of the result in the Scopus database

2-s2.0-84994718670