Biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plants

Carbon nanotubes (CNTs) have a broad range of applications and are generally considered human-engineered nanomaterials. However, carbon nanostructures have been found in ice cores and oil wells, suggesting that nature may provide appropriate conditions for CNT synthesis. During forest wildfires, mat...

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Main Authors: Javier Lara-Romero, Jesús Campos-García, Nabanita Dasgupta-Schubert, Salomón Borjas-García, DK Tiwari, Francisco Paraguay-Delgado, Sergio Jiménez-Sandoval, Gabriel Alonso-Nuñez, Mariela Gómez-Romero, Roberto Lindig-Cisneros, Homero Reyes De la Cruz, Javier A. Villegas
Format: Article
Language:English
Published: PeerJ Inc. 2017-08-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/3658.pdf
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author Javier Lara-Romero
Jesús Campos-García
Nabanita Dasgupta-Schubert
Salomón Borjas-García
DK Tiwari
Francisco Paraguay-Delgado
Sergio Jiménez-Sandoval
Gabriel Alonso-Nuñez
Mariela Gómez-Romero
Roberto Lindig-Cisneros
Homero Reyes De la Cruz
Javier A. Villegas
author_facet Javier Lara-Romero
Jesús Campos-García
Nabanita Dasgupta-Schubert
Salomón Borjas-García
DK Tiwari
Francisco Paraguay-Delgado
Sergio Jiménez-Sandoval
Gabriel Alonso-Nuñez
Mariela Gómez-Romero
Roberto Lindig-Cisneros
Homero Reyes De la Cruz
Javier A. Villegas
author_sort Javier Lara-Romero
collection DOAJ
description Carbon nanotubes (CNTs) have a broad range of applications and are generally considered human-engineered nanomaterials. However, carbon nanostructures have been found in ice cores and oil wells, suggesting that nature may provide appropriate conditions for CNT synthesis. During forest wildfires, materials such as turpentine and conifer tissues containing iron under high temperatures may create chemical conditions favorable for CNT generation, similar to those in synthetic methods. Here, we show evidence of naturally occurring multiwalled carbon nanotubes (MWCNTs) produced from Pinus oocarpa and Pinus pseudostrobus, following a forest wildfire. The MWCNTs showed an average of 10 walls, with internal diameters of ∼2.5 nm and outer diameters of ∼14.5 nm. To verify whether MWCNT generation during forest wildfires has a biological effect on some characteristic plant species of these ecosystems, germination and development of seedlings were conducted. Results show that the utilization of comparable synthetic MWCNTs increased seed germination rates and the development of Lupinus elegans and Eysenhardtia polystachya, two plants species found in the burned forest ecosystem. The finding provides evidence that supports the generation and possible ecological functions of MWCNTs in nature.
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spelling doaj.art-29458cf59e004a66b49ba0a8fb7cebc62023-12-03T09:07:42ZengPeerJ Inc.PeerJ2167-83592017-08-015e365810.7717/peerj.3658Biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plantsJavier Lara-Romero0Jesús Campos-García1Nabanita Dasgupta-Schubert2Salomón Borjas-García3DK Tiwari4Francisco Paraguay-Delgado5Sergio Jiménez-Sandoval6Gabriel Alonso-Nuñez7Mariela Gómez-Romero8Roberto Lindig-Cisneros9Homero Reyes De la Cruz10Javier A. Villegas11Facultad de Ingeniería Química, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán, MéxicoInstituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán, MéxicoCONACYT-El Colegio de Michoacán/Ladipa, La Piedad, MéxicoCONACYT-El Colegio de Michoacán/Ladipa, La Piedad, MéxicoCONACYT-El Colegio de Michoacán/Ladipa, La Piedad, MéxicoCentro de Investigación en Materiales Avanzados S.C., Chihuahua, MéxicoCentro de Investigación y de Estudios Avanzados del IPN, Unidad Querétaro, Querétaro, MéxicoCentro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, Baja California, MexicoInstituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacán, MexicoInstituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacán, MexicoInstituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán, MéxicoInstituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán, MéxicoCarbon nanotubes (CNTs) have a broad range of applications and are generally considered human-engineered nanomaterials. However, carbon nanostructures have been found in ice cores and oil wells, suggesting that nature may provide appropriate conditions for CNT synthesis. During forest wildfires, materials such as turpentine and conifer tissues containing iron under high temperatures may create chemical conditions favorable for CNT generation, similar to those in synthetic methods. Here, we show evidence of naturally occurring multiwalled carbon nanotubes (MWCNTs) produced from Pinus oocarpa and Pinus pseudostrobus, following a forest wildfire. The MWCNTs showed an average of 10 walls, with internal diameters of ∼2.5 nm and outer diameters of ∼14.5 nm. To verify whether MWCNT generation during forest wildfires has a biological effect on some characteristic plant species of these ecosystems, germination and development of seedlings were conducted. Results show that the utilization of comparable synthetic MWCNTs increased seed germination rates and the development of Lupinus elegans and Eysenhardtia polystachya, two plants species found in the burned forest ecosystem. The finding provides evidence that supports the generation and possible ecological functions of MWCNTs in nature.https://peerj.com/articles/3658.pdfNanomaterialsMultiwalled carbon nanotubesResinous treesForest ecosystemWildfiresPlant promotion
spellingShingle Javier Lara-Romero
Jesús Campos-García
Nabanita Dasgupta-Schubert
Salomón Borjas-García
DK Tiwari
Francisco Paraguay-Delgado
Sergio Jiménez-Sandoval
Gabriel Alonso-Nuñez
Mariela Gómez-Romero
Roberto Lindig-Cisneros
Homero Reyes De la Cruz
Javier A. Villegas
Biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plants
PeerJ
Nanomaterials
Multiwalled carbon nanotubes
Resinous trees
Forest ecosystem
Wildfires
Plant promotion
title Biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plants
title_full Biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plants
title_fullStr Biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plants
title_full_unstemmed Biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plants
title_short Biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plants
title_sort biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plants
topic Nanomaterials
Multiwalled carbon nanotubes
Resinous trees
Forest ecosystem
Wildfires
Plant promotion
url https://peerj.com/articles/3658.pdf
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