Nanotubes: Carbon-Based Fibers and Bacterial Nano-Conduits Both Arousing a Global Interest and Conflicting Opinions

Nanotubes (NTs) are mainly known as materials made from various substances, such as carbon, boron, or silicon, which share a nanosized tube-like structure. Among them, carbon-based NTs (CNTs) are the most researched group. CNTs, due to their nonpareil electrical, mechanical, and optical properties,...

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Main Authors: Silvana Alfei, Gian Carlo Schito
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Fibers
Subjects:
Online Access:https://www.mdpi.com/2079-6439/10/9/75
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author Silvana Alfei
Gian Carlo Schito
author_facet Silvana Alfei
Gian Carlo Schito
author_sort Silvana Alfei
collection DOAJ
description Nanotubes (NTs) are mainly known as materials made from various substances, such as carbon, boron, or silicon, which share a nanosized tube-like structure. Among them, carbon-based NTs (CNTs) are the most researched group. CNTs, due to their nonpareil electrical, mechanical, and optical properties, can provide tremendous achievements in several fields of nanotechnology. Unfortunately, the high costs of production and the lack of unequivocally reliable toxicity data still prohibit their extensive application. In the last decade, a significant number of intriguing nanotubes-like structures were identified in bacteria (BNTs). The majority of experts define BNTs as membranous intercellular bridges that connect neighboring bacterial cell lying in proximity. Despite recent contrasting findings, most evidence suggested that bacteria exploit NTs to realize both antagonistic and cooperative intercellular exchanges of cytoplasmic molecules and nutrients. Among other consequences, it has been proposed that such molecular trade, including even plasmids, can facilitate the emergence of new non-heritable phenotypes and characteristics in multicellular bacterial communities, including resistance to antibiotics, with effects of paramount importance on global health. Here, we provide an enthralling comparison between CNTs, which are synthetically producible and ubiquitously exploitable for improving the quality of human life, and BNTs biosynthetically produced by prokaryotes, whose functions are not still fully clarified, but whose greater knowledge could be crucial to better understand the mechanisms of pathogenesis and combat the phenomenon of resistance.
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spelling doaj.art-f663643e17ec4ec8aaeab34d7758ef762023-11-23T16:11:20ZengMDPI AGFibers2079-64392022-09-011097510.3390/fib10090075Nanotubes: Carbon-Based Fibers and Bacterial Nano-Conduits Both Arousing a Global Interest and Conflicting OpinionsSilvana Alfei0Gian Carlo Schito1Department of Pharmacy (DIFAR), University of Genoa, Viale Cembrano, 4, 16148 Genoa, ItalyDepartment of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Viale Benedetto XV, 6, 16132 Genova, ItalyNanotubes (NTs) are mainly known as materials made from various substances, such as carbon, boron, or silicon, which share a nanosized tube-like structure. Among them, carbon-based NTs (CNTs) are the most researched group. CNTs, due to their nonpareil electrical, mechanical, and optical properties, can provide tremendous achievements in several fields of nanotechnology. Unfortunately, the high costs of production and the lack of unequivocally reliable toxicity data still prohibit their extensive application. In the last decade, a significant number of intriguing nanotubes-like structures were identified in bacteria (BNTs). The majority of experts define BNTs as membranous intercellular bridges that connect neighboring bacterial cell lying in proximity. Despite recent contrasting findings, most evidence suggested that bacteria exploit NTs to realize both antagonistic and cooperative intercellular exchanges of cytoplasmic molecules and nutrients. Among other consequences, it has been proposed that such molecular trade, including even plasmids, can facilitate the emergence of new non-heritable phenotypes and characteristics in multicellular bacterial communities, including resistance to antibiotics, with effects of paramount importance on global health. Here, we provide an enthralling comparison between CNTs, which are synthetically producible and ubiquitously exploitable for improving the quality of human life, and BNTs biosynthetically produced by prokaryotes, whose functions are not still fully clarified, but whose greater knowledge could be crucial to better understand the mechanisms of pathogenesis and combat the phenomenon of resistance.https://www.mdpi.com/2079-6439/10/9/75carbon nanotubes (CNTs)bacterial nanotubes (BNTs)mechanical prowesselectrical potencyoptical propertiesCNTs biomedical applications
spellingShingle Silvana Alfei
Gian Carlo Schito
Nanotubes: Carbon-Based Fibers and Bacterial Nano-Conduits Both Arousing a Global Interest and Conflicting Opinions
Fibers
carbon nanotubes (CNTs)
bacterial nanotubes (BNTs)
mechanical prowess
electrical potency
optical properties
CNTs biomedical applications
title Nanotubes: Carbon-Based Fibers and Bacterial Nano-Conduits Both Arousing a Global Interest and Conflicting Opinions
title_full Nanotubes: Carbon-Based Fibers and Bacterial Nano-Conduits Both Arousing a Global Interest and Conflicting Opinions
title_fullStr Nanotubes: Carbon-Based Fibers and Bacterial Nano-Conduits Both Arousing a Global Interest and Conflicting Opinions
title_full_unstemmed Nanotubes: Carbon-Based Fibers and Bacterial Nano-Conduits Both Arousing a Global Interest and Conflicting Opinions
title_short Nanotubes: Carbon-Based Fibers and Bacterial Nano-Conduits Both Arousing a Global Interest and Conflicting Opinions
title_sort nanotubes carbon based fibers and bacterial nano conduits both arousing a global interest and conflicting opinions
topic carbon nanotubes (CNTs)
bacterial nanotubes (BNTs)
mechanical prowess
electrical potency
optical properties
CNTs biomedical applications
url https://www.mdpi.com/2079-6439/10/9/75
work_keys_str_mv AT silvanaalfei nanotubescarbonbasedfibersandbacterialnanoconduitsbotharousingaglobalinterestandconflictingopinions
AT giancarloschito nanotubescarbonbasedfibersandbacterialnanoconduitsbotharousingaglobalinterestandconflictingopinions