Article
Materials Science, Multidisciplinary
Jesus Antonio Carlos Cornelio, Edwin Espinel Blanco, Javier Lara Romero, Juan Sebastian Rudas, Gustavo Suarez Guerrero, Alejandro Toro, Lina Marcela Hoyos-Palacio
Summary: Carbon nanotubes were synthesized and functionalized with molybdenum disulfide nanoparticles. The functionalized nanotubes showed variations in crystal structure, chemical composition, and thermal response, indicating potential use in diverse engineering fields.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Polymer Science
Seham S. Alterary, Raya M. Alyabes, Ahmed A. Alshahrani, Monirah A. Al-Alshaikh
Summary: Reverse osmosis is the most widely used strategy in membrane technology. This study focuses on improving the performance of thin-film membranes by modifying the surface characteristics of support layers. Different membranes were fabricated using interfacial polymerization, with varying concentrations of multiwalled carbon nanotubes and ethanol. The results showed that the membrane with a selective layer of PA-EtOH 30% exhibited the best salt rejection, while the membrane with PA-MWCNTs 0.15% had the lowest salt rejection due to its hydrophobic nature.
Article
Chemistry, Physical
Pawel Smolen, Tomasz Czujko, Zenon Komorek, Dominik Grochala, Anna Rutkowska, Malgorzata Osiewicz-Powezka
Summary: This study successfully obtained electrically conductive materials by adding functionalized multiwalled carbon nanotubes, and confirmed that carbon nanotubes as polymer reinforcements can increase tensile strength and strain percentage. However, increasing nanofiller percentages resulted in a drastic decrease in Young's modulus values.
Article
Environmental Sciences
Krassimira Ilieva-Makulec, Anna Augustyniuk-Kram, Izabella Olejniczak, Kamil Karaban, Marek Nowicki, Tomasz Runka, Andrzej Kulczycki, Jaroslaw Kaluzny
Summary: The study found that multiwalled carbon nanotubes had a potential impact on soil organisms, especially with higher sensitivity in nematodes. Contamination by CNTs significantly affected the dynamics and diversity of soil fauna and microbial communities, potentially leading to long-term consequences for soil functioning and nutrient cycling.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Physical
Mauricio Pavia, Melanie Emo, Patrice Estelle, Abdul Rahman Mohamed, Brigitte Vigolo
Summary: In this study, covalent functionalization of multiwalled carbon nanotubes and graphene nanoplatelets was conducted using refluxing in sulfuric acid/nitric acid mixtures of different concentrations. The aim was to achieve both enhanced thermal conductivity and stable dispersion in carbon nanomaterial-based nanofluids. The results showed that the best performance was achieved with MWCNT treated with a sulfuric acid/nitric acid mixture at concentrations of 3 and 5 M, resulting in a 9.4% enhancement of thermal conductivity at 20°C and stable dispersion over 5 weeks.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Biochemistry & Molecular Biology
Vaniyamparambath Vijayalakshmi, Bindu Sadanandan, Raghu V. V. Anjanapura
Summary: In this study, the toxicity of multiwalled carbon nanotubes (MWCNTs) and carboxylic functionalized MWCNTs (MWCNT-COOH) on neuronal cells was compared. The results showed that MWCNT-COOH had higher cell viability and lower oxidative stress compared to MWCNT at higher concentrations and longer incubation periods.
JOURNAL OF BIOCHEMICAL AND MOLECULAR TOXICOLOGY
(2023)
Article
Chemistry, Analytical
Shalene Xue Lin Goh, Esther Xue Yi Goh, Hian Kee Lee
Summary: A novel membrane-based SPE-UHPLC-MS/MS method was developed for the determination of nine glucocorticoids in water, with the use of SDS-MWCNTs material and membrane device, enhancing the overall extraction efficiency.
Article
Environmental Sciences
Ifeoluwa O. Awogbindin, Ikenna C. Maduako, Isaac A. Adedara, Solomon E. Owumi, Akinola O. Ajeleti, Olatunde Owoeye, Anita K. Patlolla, Paul B. Tchounwou, Ebenezer O. Farombi
Summary: Studies have shown that exposure to multiwalled carbon nanotubes (MWCNTs) can impair liver and kidney function in rats through oxidative stress and inflammation, while treatment with kolaviron (KV) can mitigate these effects by its anti-inflammatory and antioxidant properties.
ENVIRONMENTAL TOXICOLOGY
(2021)
Article
Chemistry, Analytical
Qinxing Xie, Jingbin Zhang, Peng Zhao
Summary: A functional interlayer consisting of attapulgites and multiwalled carbon nanotubes has been fabricated, showing improved performance in lithium-sulfur batteries. The composite membrane is cost-effective and effective, demonstrating great potential for high performance energy storage applications.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Multidisciplinary Sciences
T. P. Radhika, Satyananda Kar
Summary: This study investigates the effect of an additional floating electrode on the properties of an atmospheric pressure plasma jet with a cross-field electrode configuration. The experiments show that the presence of an additional floating electrode reduces the power required for the plasma jet to cross the nozzle and increases the jet length. The threshold power and maximum jet length depend on the width of the electrode. The analysis also reveals an improvement in the reactivity of the plasma plume due to the increased optical emission intensity and relative yield of ions in the presence of the additional floating electrode.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Byungcheon Yoo, Ziwei Xu, Feng Ding
Summary: High-pressure carbon monoxide (HiPCO) synthesized single-walled carbon nanotubes (SWCNTs) were heat treated at high temperatures, resulting in an increase in diameter and the formation of double-, triple-, and multi-walled carbon nanotubes (MWCNTs). Most MWCNTs were found to have an odd number of walls, in accordance with the mechanism of SWCNT bundle coalescence.
Article
Chemistry, Multidisciplinary
Gang Wang, Dan Han, Qingyu Zhang
Summary: This study developed a dual-signal strategy using anodic stripping voltammetry (ASV) and cyclic voltammetry (CV) for highly sensitive detection of circulating tumour cells (CTCs). The dual-signal biosensor overcame the limitations of any single-signal mode and improved the detection reliability and precision.
Article
Biochemistry & Molecular Biology
Badar M. AlruwailI, Usman Saeed, Iqbal Ahmad, Hamad Al-Turaif, Hani Aboalkhair, Abdulmohsen O. AlsaiarI
Summary: This study developed a PLA/PBS blend composite membrane for gas separation, with the addition of MWCNT enhancing tensile strength, porosity, and crystallinity. Gas permeance study revealed that the PLA/PBS blend with 0.5% wt. MWCNT improved gas permeation and selectivity at 4 bar.
Article
Chemistry, Physical
Barbara Abreu, Jorge Montero, Matat Buzaglo, Oren Regev, Eduardo F. Marques
Summary: The study focused on separating and dispersing multiwalled carbon nanotubes and graphene nanoplatelets using controlled processing conditions and different types of surfactants. Bell-shaped dispersibility curves were obtained, revealing common fundamental features in the dispersing process of 1D and 2D nanocarbons. Despite differences in dispersal yields, a master curve for dispersibility suggests underlying similarities in the dispersing mechanisms.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Multidisciplinary
Zakaria Saadi, Simon G. King, Jose Anguita, Vlad Stolojan, S. Ravi P. Silva
Summary: Thermoelectric materials offer a promising solution for recovering wasted energy, but their efficiency is low and the best materials are brittle, toxic, and expensive. This study demonstrates that flexible films of double-walled carbon nanotubes can achieve low thermal conductivity and high electrical conductivity, leading to the development of flexible, cheaper, and more efficient thermoelectric generators.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)