Silver Nanoparticles and Chitosan Oligomers Composites as Poplar Wood Protective Treatments against Wood-Decay Fungi and Termites

This study focuses on Populus euramericana (Dode) Guinier, a globally distributed fastgrowing tree. Despite its valuable wood, it exhibits low durability. The aim of this study was to assess the efficacy of a binary composite comprising silver nanoparticles (AgNPs) and chitosan oligomers (COS) in pr...

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Autores principales: Spavento, Eleana María, De Troya Franco, María Teresa, Acuña Rello, Luis, Murace, Mónica Adriana, Santos, Sara M., Casado Sanz, Milagros, Martínez López, Roberto D., Martín Gil, Jesús, Álvarez Martínez, Javier, Martín Ramos, Pablo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2023
Materias:
Ingeniería Forestal
AgNPs
Coniophora puteana
durability
nanocomposite
pressure-vacuum treatment
Populus euramericana
Reticulitermes grassei
Trametes versicolor
use class
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/162894
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-162894
record_format dspace
spelling I19-R120-10915-1628942024-02-20T20:06:10Z http://sedici.unlp.edu.ar/handle/10915/162894 Silver Nanoparticles and Chitosan Oligomers Composites as Poplar Wood Protective Treatments against Wood-Decay Fungi and Termites Spavento, Eleana María De Troya Franco, María Teresa Acuña Rello, Luis Murace, Mónica Adriana Santos, Sara M. Casado Sanz, Milagros Martínez López, Roberto D. Martín Gil, Jesús Álvarez Martínez, Javier Martín Ramos, Pablo 2023-11-25 2024-02-20T13:47:13Z en Ingeniería Forestal AgNPs Coniophora puteana durability nanocomposite pressure-vacuum treatment Populus euramericana Reticulitermes grassei Trametes versicolor use class This study focuses on Populus euramericana (Dode) Guinier, a globally distributed fastgrowing tree. Despite its valuable wood, it exhibits low durability. The aim of this study was to assess the efficacy of a binary composite comprising silver nanoparticles (AgNPs) and chitosan oligomers (COS) in protecting P. x euramericana ‘I-214’ wood against degradation caused by xylophagous fungi and termites through vacuum-pressure impregnation. The test material was carefully selected and conditioned following the guidelines of EN 350:2016, and impregnation was carried out in accordance with EN 113-1:2021. Five concentrations of AgNPs–COS composites were utilized. Biodeterioration resistance was evaluated based on EN 350:2016 for white (Trametes versicolor (L.) Lloyd) and brown (Coniophora puteana (Schumach.) P.Karst.) rot fungi, and EN 117:2012 for subterranean termites (Reticulitermis grassei Clément). The durability class and use class were assigned following EN 350:2016 and EN 335:2013, respectively. In comparison to the untreated control, the binary solution at its highest concentration (AgNPs 4 ppm + COS 20 g.L-1) demonstrated a notable reduction in weight loss, decreasing from 41.96 +- 4.49% to 30.15 +- 3.08% for white-rot fungi and from 41.93 +- 4.33% to 27.22 +- 0.66% for brown rot fungi. Furthermore, the observed termite infestation shifted from “heavy” to “attempted attack”, resulting in a decrease in the survival rate from 53.98 +- 10.40% to 26.62 +- 8.63%. Consequently, the durability classification of P. x euramericana I-214 witnessed an enhancement from “Not durable” to “Slightly” and “Moderately durable” concerning decay fungi and termites, respectively. These findings expand the potential applications of this wood and substantiate the advantages of employing this environmentally friendly treatment. Laboratorio de Investigaciones en Madera Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Forestal
AgNPs
Coniophora puteana
durability
nanocomposite
pressure-vacuum treatment
Populus euramericana
Reticulitermes grassei
Trametes versicolor
use class
spellingShingle Ingeniería Forestal
AgNPs
Coniophora puteana
durability
nanocomposite
pressure-vacuum treatment
Populus euramericana
Reticulitermes grassei
Trametes versicolor
use class
Spavento, Eleana María
De Troya Franco, María Teresa
Acuña Rello, Luis
Murace, Mónica Adriana
Santos, Sara M.
Casado Sanz, Milagros
Martínez López, Roberto D.
Martín Gil, Jesús
Álvarez Martínez, Javier
Martín Ramos, Pablo
Silver Nanoparticles and Chitosan Oligomers Composites as Poplar Wood Protective Treatments against Wood-Decay Fungi and Termites
topic_facet Ingeniería Forestal
AgNPs
Coniophora puteana
durability
nanocomposite
pressure-vacuum treatment
Populus euramericana
Reticulitermes grassei
Trametes versicolor
use class
description This study focuses on Populus euramericana (Dode) Guinier, a globally distributed fastgrowing tree. Despite its valuable wood, it exhibits low durability. The aim of this study was to assess the efficacy of a binary composite comprising silver nanoparticles (AgNPs) and chitosan oligomers (COS) in protecting P. x euramericana ‘I-214’ wood against degradation caused by xylophagous fungi and termites through vacuum-pressure impregnation. The test material was carefully selected and conditioned following the guidelines of EN 350:2016, and impregnation was carried out in accordance with EN 113-1:2021. Five concentrations of AgNPs–COS composites were utilized. Biodeterioration resistance was evaluated based on EN 350:2016 for white (Trametes versicolor (L.) Lloyd) and brown (Coniophora puteana (Schumach.) P.Karst.) rot fungi, and EN 117:2012 for subterranean termites (Reticulitermis grassei Clément). The durability class and use class were assigned following EN 350:2016 and EN 335:2013, respectively. In comparison to the untreated control, the binary solution at its highest concentration (AgNPs 4 ppm + COS 20 g.L-1) demonstrated a notable reduction in weight loss, decreasing from 41.96 +- 4.49% to 30.15 +- 3.08% for white-rot fungi and from 41.93 +- 4.33% to 27.22 +- 0.66% for brown rot fungi. Furthermore, the observed termite infestation shifted from “heavy” to “attempted attack”, resulting in a decrease in the survival rate from 53.98 +- 10.40% to 26.62 +- 8.63%. Consequently, the durability classification of P. x euramericana I-214 witnessed an enhancement from “Not durable” to “Slightly” and “Moderately durable” concerning decay fungi and termites, respectively. These findings expand the potential applications of this wood and substantiate the advantages of employing this environmentally friendly treatment.
format Articulo
Articulo
author Spavento, Eleana María
De Troya Franco, María Teresa
Acuña Rello, Luis
Murace, Mónica Adriana
Santos, Sara M.
Casado Sanz, Milagros
Martínez López, Roberto D.
Martín Gil, Jesús
Álvarez Martínez, Javier
Martín Ramos, Pablo
author_facet Spavento, Eleana María
De Troya Franco, María Teresa
Acuña Rello, Luis
Murace, Mónica Adriana
Santos, Sara M.
Casado Sanz, Milagros
Martínez López, Roberto D.
Martín Gil, Jesús
Álvarez Martínez, Javier
Martín Ramos, Pablo
author_sort Spavento, Eleana María
title Silver Nanoparticles and Chitosan Oligomers Composites as Poplar Wood Protective Treatments against Wood-Decay Fungi and Termites
title_short Silver Nanoparticles and Chitosan Oligomers Composites as Poplar Wood Protective Treatments against Wood-Decay Fungi and Termites
title_full Silver Nanoparticles and Chitosan Oligomers Composites as Poplar Wood Protective Treatments against Wood-Decay Fungi and Termites
title_fullStr Silver Nanoparticles and Chitosan Oligomers Composites as Poplar Wood Protective Treatments against Wood-Decay Fungi and Termites
title_full_unstemmed Silver Nanoparticles and Chitosan Oligomers Composites as Poplar Wood Protective Treatments against Wood-Decay Fungi and Termites
title_sort silver nanoparticles and chitosan oligomers composites as poplar wood protective treatments against wood-decay fungi and termites
publishDate 2023
url http://sedici.unlp.edu.ar/handle/10915/162894
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