1
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Krasley A, Li E, Galeana JM, Bulumulla C, Beyene AG, Demirer GS. Carbon Nanomaterial Fluorescent Probes and Their Biological Applications. Chem Rev 2024; 124:3085-3185. [PMID: 38478064 PMCID: PMC10979413 DOI: 10.1021/acs.chemrev.3c00581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 03/28/2024]
Abstract
Fluorescent carbon nanomaterials have broadly useful chemical and photophysical attributes that are conducive to applications in biology. In this review, we focus on materials whose photophysics allow for the use of these materials in biomedical and environmental applications, with emphasis on imaging, biosensing, and cargo delivery. The review focuses primarily on graphitic carbon nanomaterials including graphene and its derivatives, carbon nanotubes, as well as carbon dots and carbon nanohoops. Recent advances in and future prospects of these fields are discussed at depth, and where appropriate, references to reviews pertaining to older literature are provided.
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Affiliation(s)
- Andrew
T. Krasley
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Eugene Li
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Boulevard, Pasadena, California 91125, United States
| | - Jesus M. Galeana
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Boulevard, Pasadena, California 91125, United States
| | - Chandima Bulumulla
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Abraham G. Beyene
- Janelia
Research Campus, Howard Hughes Medical Institute, 19700 Helix Drive, Ashburn, Virginia 20147, United States
| | - Gozde S. Demirer
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Boulevard, Pasadena, California 91125, United States
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2
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Kumar A, Sarkar S, Cho D. Chirality and length-dependent electron transmission of fullerene-capped chiral carbon nanotubes sandwiched in gold electrodes. Phys Chem Chem Phys 2024; 26:3474-3481. [PMID: 38205801 DOI: 10.1039/d3cp05338e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
In order to develop high-performance CNT-based electronic and optoelectronic devices, it is crucial to establish the relationship between the electron transport properties of carbon nanotubes (CNTs) and their structures. In this work, we have investigated the transport properties of chiral (8, m) and (10, m) CNTs sandwiched between two gold electrodes by employing nonequilibrium Green's function (NEGF) combined with density functional theory (DFT). We demonstrate that with the change of chirality the transport property changes, as predicted by the (n - m) rule. The change of length is also considered. Our results show that the electrical conductance of (10, m) CNTs is larger than that of the (8, m) CNTs, due to larger diameter. Furthermore, we found that the (8, 1) chiral CNT does not follow the (n - m) rule in shorter length and it shows metallic behavior. The cohesive energy, wavefunctions of electronic states, and coupling energy calculation indicate that the devices considered in this study are stable. The transmission spectra, current vs. voltage curves, and transmission eigenchannels provide strong evidence for our findings. Among the (10, m) series, (10, 3) CNT would be the optimal choice for a semiconducting molecular junction device with a significant conductance of 20 μA at 0.8 bias voltage.
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Affiliation(s)
- Ameet Kumar
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, South Korea.
| | - Sudip Sarkar
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, South Korea.
| | - Daeheum Cho
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, South Korea.
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3
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Gendron D, Bubak G. Carbon Nanotubes and Graphene Materials as Xenobiotics in Living Systems: Is There a Consensus on Their Safety? J Xenobiot 2023; 13:740-760. [PMID: 38132708 PMCID: PMC10744618 DOI: 10.3390/jox13040047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023] Open
Abstract
Carbon nanotubes and graphene are two types of nanomaterials that have unique properties and potential applications in various fields, including biomedicine, energy storage, and gas sensing. However, there is still a debate about the safety of these materials, and there is yet to be a complete consensus on their potential risks to human health and the environment. While some studies have provided recommendations for occupational exposure limits, more research is needed to fully understand the potential risks of these materials to human health and the environment. In this review, we will try to summarize the advantages and disadvantages of using carbon nanotubes and graphene as well as composites containing them in the context of their biocompatibility and toxicity to living systems. In addition, we overview current policy guidelines and technical regulations regarding the safety of carbon-based nanomaterials.
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Affiliation(s)
- David Gendron
- Kemitek, Cégep de Thetford, 835 Rue Mooney, Thetford Mines, QC G6G 0A5, Canada
| | - Grzegorz Bubak
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland;
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4
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Takahashi S, Hori K. Long-term continuous degradation of carbon nanotubes by a bacteria-driven Fenton reaction. Front Microbiol 2023; 14:1298323. [PMID: 38098651 PMCID: PMC10720723 DOI: 10.3389/fmicb.2023.1298323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/08/2023] [Indexed: 12/17/2023] Open
Abstract
Very few bacteria are known that can degrade carbon nanotubes (CNTs), and the only known degradation mechanism is a Fenton reaction driven by Labrys sp. WJW with siderophores, which only occurs under iron-deficient conditions. No useful information is available on the degradation rates or long-term stability and continuity of the degradation reaction although several months or more are needed for CNT degradation. In this study, we investigated long-term continuous degradation of oxidized (carboxylated) single-walled CNTs (O-SWCNTs) using bacteria of the genus Shewanella. These bacteria are widely present in the environment and can drive the Fenton reaction by alternating anaerobic-aerobic growth conditions under more general environmental conditions. We first examined the effect of O-SWCNTs on the growth of S. oneidensis MR-1, and it was revealed that O-SWCNTs promote growth up to 30 μg/mL but inhibit growth at 40 μg/mL and above. Then, S. oneidensis MR-1 was subjected to incubation cycles consisting of 21-h anaerobic and 3-h aerobic periods in the presence of 30 μg/mL O-SWCNTs and 10 mM Fe(III) citrate. We determined key factors that help prolong the bacteria-driven Fenton reaction and finally achieved long-term continuous degradation of O-SWCNTs over 90 d. By maintaining a near neutral pH and replenishing Fe(III) citrate at 60 d, a degraded fraction of 56.3% was reached. S. oneidensis MR-1 produces Fe(II) from Fe(III) citrate, a final electron acceptor for anaerobic respiration during the anaerobic period. Then, ·OH is generated through the Fenton reaction by Fe(II) and H2O2 produced by MR-1 during the aerobic period. ·OH was responsible for O-SWCNT degradation, which was inhibited by scavengers of H2O2 and ·OH. Raman spectroscopy and X-ray photoelectron spectroscopy showed that the graphitic structure in O-SWCNTs was oxidized, and electron microscopy showed that long CNT fibers initially aggregated and became short and isolated during degradation. Since Shewanella spp. and iron are ubiquitous in the environment, this study suggests that a Fenton reaction driven by this genus is applicable to the degradation of CNTs under a wide range of conditions and will help researchers develop novel methods for waste treatment and environmental bioremediation against CNTs.
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Affiliation(s)
| | - Katsutoshi Hori
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Aichi, Japan
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5
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Bogdanova AR, Krasnikov DV, Khabushev EM, Ramirez B JA, Matyushkin YE, Nasibulin AG. Role of Hydrogen in Ethylene-Based Synthesis of Single-Walled Carbon Nanotubes. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13091504. [PMID: 37177050 PMCID: PMC10180455 DOI: 10.3390/nano13091504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/17/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023]
Abstract
We examined the effect of hydrogen on the growth of single-walled carbon nanotubes in the aerosol (a specific case of the floating catalyst) chemical vapor deposition process using ethylene as a carbon source and ferrocene as a precursor for a Fe-based catalyst. With a comprehensive set of physical methods (UV-vis-NIR and Raman spectroscopies, transmission electron microscopy, scanning electron microscopy, differential mobility analysis, and four-probe sheet resistance measurements), we showed hydrogen to inhibit ethylene pyrolysis extending the window of synthesis parameters. Moreover, the detailed study at different temperatures allowed us to distinguish three different regimes for the hydrogen effect: pyrolysis suppression at low concentrations (I) followed by surface cleaning/activation promotion (II), and surface blockage/nanotube etching (III) at the highest concentrations. We believe that such a detailed study will help to reveal the complex role of hydrogen and contribute toward the synthesis of single-walled carbon nanotubes with detailed characteristics.
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Affiliation(s)
- Alisa R Bogdanova
- Skolkovo Institute of Science and Technology, Nobelya Str. 3, Moscow 121205, Russia
| | - Dmitry V Krasnikov
- Skolkovo Institute of Science and Technology, Nobelya Str. 3, Moscow 121205, Russia
| | - Eldar M Khabushev
- Skolkovo Institute of Science and Technology, Nobelya Str. 3, Moscow 121205, Russia
| | - Javier A Ramirez B
- Skolkovo Institute of Science and Technology, Nobelya Str. 3, Moscow 121205, Russia
| | - Yakov E Matyushkin
- Moscow Institute of Physics and Technology, Institute Lane 9, Dolgoprudny 141701, Russia
| | - Albert G Nasibulin
- Skolkovo Institute of Science and Technology, Nobelya Str. 3, Moscow 121205, Russia
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6
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Bogdanova AR, Krasnikov DV, Khabushev EM, Ramirez B. JA, Nasibulin AG. Bithiophene as a Sulfur-Based Promotor for the Synthesis of Carbon Nanotubes and Carbon-Carbon Composites. Int J Mol Sci 2023; 24:ijms24076686. [PMID: 37047655 PMCID: PMC10095122 DOI: 10.3390/ijms24076686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/16/2023] [Accepted: 03/31/2023] [Indexed: 04/07/2023] Open
Abstract
We assess bithiophene (C8H6S2) as a novel sulfur-based promotor for the growth of single-walled carbon nanotubes (SWCNTs) in the aerosol (floating catalyst) CVD method. Technologically suitable equilibrium vapor pressure and an excess of hydrocarbon residuals formed under its decomposition make bithiophene an attractive promoter for the production of carbon nanotubes in general and specifically for ferrocene-based SWCNT growth. Indeed, we detect a moderate enhancement in the carbon nanotube yield and a decrease in the equivalent sheet resistance of the films at a low bithiophene content, indicating the improvement of the product properties. Moreover, the relatively high concentrations and low temperature stability of bithiophene result in non-catalytical decomposition, leading to the formation of pyrolytic carbon deposits; the deposits appear as few-layer graphene structures. Thus, bithiophene pyrolysis opens a route for the cheap production of hierarchical composite thin films comprising carbon nanotubes and few-layer graphene, which might be of practical use for hierarchical adsorbents, protective membranes, or electrocatalysis.
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Affiliation(s)
- Alisa R. Bogdanova
- Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Nobel Str. 3, 121205 Moscow, Russia
| | - Dmitry V. Krasnikov
- Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Nobel Str. 3, 121205 Moscow, Russia
| | - Eldar M. Khabushev
- Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Nobel Str. 3, 121205 Moscow, Russia
| | - Javier A. Ramirez B.
- Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Nobel Str. 3, 121205 Moscow, Russia
| | - Albert G. Nasibulin
- Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Nobel Str. 3, 121205 Moscow, Russia
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7
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Solikhin A, Syamani FA, Hastati DY, Budiman I, Purnawati R, Mubarok M, Yanti H, Fachruddin A, Saad S, Jaenab S, Badrudin U, Kurniawan T. Review on lignocellulose valorization for nanocarbon and its composites: Starting from laboratory studies to business application. Int J Biol Macromol 2023; 239:124082. [PMID: 36965566 DOI: 10.1016/j.ijbiomac.2023.124082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/02/2023] [Accepted: 03/14/2023] [Indexed: 03/27/2023]
Abstract
This study concerns a scoping and literature review of nanocarbon and its composites with details on specific propositions, including nanocarbon history, nanocarbon types, and lignocellulose nanocarbon types, properties, applications, toxicity, regulation, and business model for commercialization. The review brings novelties, comprehensively expounding on laboratory studies and industrial applications of biomass or lignocellulose materials-derived nanocarbon and its composites. Since its first discovery in the form of Buckyball in 1985, nanocarbon has brought interest to scientists and industries for applications. From the previous studies, it is discovered that many types of nanocarbon are sourced from lignocellulose materials. With their excellent properties of nanomaterials, nanocarbon has been harnessed for such as reinforcing and filler agents for nanocomposites or direct use of individual nanocarbon for specific purposes. However, the toxicological properties of nanocarbon have delivered a level of concern in its use and application. In addition, with the radically growing increase in the use of nanocarbon, policies have been enacted in several countries that rule on the use of nanocarbon. The business model for the commercialization of lignocellulose-based nanocarbon was also proposed in this study. This study can showcase the importance of both individual nanocarbon and nanocarbon-based composites for industrial implementations by considering their synthesis, properties, application, country legislations/regulations, and business model. The studies also can be the major references for researchers to partner with industries and governments in investing in lignocellulose-sourced nanocarbon potential research, development, and policies.
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Affiliation(s)
- Achmad Solikhin
- Indonesian Green Action Forum, Bogor, West Java 16680, Indonesia; Economic Research Institute for ASEAN and East Asia, DKI Jakarta 12110, Indonesia.
| | - Firda Aulya Syamani
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Bogor, West Java 16911, Indonesia
| | - Dwi Yuni Hastati
- College of Vocational Studies, Bogor Agricultural University, Bogor, West Java 16128, Indonesia
| | - Ismail Budiman
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Bogor, West Java 16911, Indonesia
| | - Renny Purnawati
- Faculty of Forestry, University of Papua, Manokwari, Papua Barat 98314, Indonesia
| | - Mahdi Mubarok
- Faculty of Forestry and Environment, Bogor Agricultural University, Bogor, West Java 16680, Indonesia
| | - Hikma Yanti
- Faculty of Forestry, Tanjungpura University, Pontianak, Kalimantan Barat 78124, Indonesia
| | - Achmad Fachruddin
- Creavill Consultant, Bantul, Daerah Istimewa Yogyakarta 55184, Indonesia
| | - Sahriyanti Saad
- Faculty of Forestry, Hasannudin University, South Sulawesi 90245, Indonesia
| | - Siti Jaenab
- Faculty of Forestry and Environment, Bogor Agricultural University, Bogor, West Java 16680, Indonesia
| | - Ubad Badrudin
- Faculty of Agriculture, University of Pekalongan, Pekalongan, Central Java 51115, Indonesia
| | - Tegar Kurniawan
- Sultan Agung Islamic University, Semarang, Central Java 50112, Indonesia
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8
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Moseenkov SI, Kuznetsov VL, Zolotarev NA, Kolesov BA, Prosvirin IP, Ishchenko AV, Zavorin AV. Investigation of Amorphous Carbon in Nanostructured Carbon Materials (A Comparative Study by TEM, XPS, Raman Spectroscopy and XRD). MATERIALS (BASEL, SWITZERLAND) 2023; 16:1112. [PMID: 36770119 PMCID: PMC9919804 DOI: 10.3390/ma16031112] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/22/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Amorphous carbon (AC) is present in the bulk and on the surface of nanostructured carbon materials (NCMs) and exerts a significant effect on the physical, chemical and mechanical properties of NCMs. Thus, the determination of AC in NCMs is extremely important for controlling the properties of a wide range of materials. In this work, a comparative study of the effect of heat treatment on the structure and content of amorphous carbon in deposited AC film, nanodiamonds, carbon black and multiwalled carbon nanotube samples was carried out by TEM, XPS, XRD and Raman spectroscopy. It has been established that the use of the 7-peak model for fitting the Raman spectra makes it possible not only to isolate the contribution of the modes of amorphous carbon but also to improve the accuracy of fitting the fundamental G and D2 (D) modes and obtain a satisfactory convergence between XPS and Raman spectroscopy. The use of this model for fitting the Raman spectra of deposited AC film, ND, CB and MWCNT films demonstrated its validity and effectiveness for investigating the amorphous carbon in various carbon systems and its applicability in comparative studies of other NCMs.
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9
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Samira R, Cohen A, Patolsky F, Lachman N. Cyclic Buckling Characterization of an Individual MWCNT Using Quantitative In Situ TEM Axial Compression. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:301. [PMID: 36678054 PMCID: PMC9865386 DOI: 10.3390/nano13020301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/06/2023] [Accepted: 01/07/2023] [Indexed: 06/17/2023]
Abstract
Carbon nanotubes (CNTs) are extremely conductive and flexible, making them ideal for applications such as flexible electronics and nanoelectromechanical systems. However, in order to properly apply them in such devices, their long-term durability must be assessed. In the present study, we demonstrate cyclic loading of a thick MWCNT (175 nm) under axial compression, observed in situ under a transmission electron microscope (TEM). The force was applied via controlled displacement, while real-time TEM videos of the deformation process were gathered to produce the morphological data. The in situ observations combined with force-displacement curves revealed the onset of buckling instabilities, and the elastic limits of the tube were assessed. The MWCNT retained its original structure even after 68 loading-unloading cycles, despite observed clues for structural distortions. The stiffness of the tube, calculated after each loading cycle, was in a 0.15 to 0.28 TPa range-comparable to the literature, which further validates the measurement set-up. These in situ tests demonstrate the resilience of CNTs to fatigue which can be correlated with the CNTs' structure. Such correlations can help tailoring CNTs' properties to specific applications.
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Affiliation(s)
- Raz Samira
- Department of Materials Science and Engineering, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
| | - Adam Cohen
- Department of Materials Science and Engineering, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
| | - Fernando Patolsky
- Department of Materials Science and Engineering, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
- School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Noa Lachman
- Department of Materials Science and Engineering, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
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Wood ND, Gillie LJ, Cooke DJ, Molinari M. A Review of Key Properties of Thermoelectric Composites of Polymers and Inorganic Materials. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8672. [PMID: 36500167 PMCID: PMC9738949 DOI: 10.3390/ma15238672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
This review focusses on the development of thermoelectric composites made of oxide or conventional inorganic materials, and polymers, with specific emphasis on those containing oxides. Discussion of the current state-of-the-art thermoelectric materials, including the individual constituent materials, i.e., conventional materials, oxides and polymers, is firstly presented to provide the reader with a comparison of the top-performing thermoelectric materials. Then, individual materials used in the inorganic/polymer composites are discussed to provide a comparison of the performance of the composites themselves. Finally, the addition of carbon-based compounds is discussed as a route to improving the thermoelectric performance. For each topic discussed, key thermoelectric properties are tabulated and comparative figures are presented for a wide array of materials.
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11
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Indirect mediators of systemic health outcomes following nanoparticle inhalation exposure. Pharmacol Ther 2022; 235:108120. [PMID: 35085604 PMCID: PMC9189040 DOI: 10.1016/j.pharmthera.2022.108120] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 01/19/2022] [Indexed: 02/07/2023]
Abstract
The growing field of nanoscience has shed light on the wide diversity of natural and anthropogenic sources of nano-scale particulates, raising concern as to their impacts on human health. Inhalation is the most robust route of entry, with nanoparticles (NPs) evading mucociliary clearance and depositing deep into the alveolar region. Yet, impacts from inhaled NPs are evident far outside the lung, particularly on the cardiovascular system and highly vascularized organs like the brain. Peripheral effects are partly explained by the translocation of some NPs from the lung into the circulation; however, other NPs largely confined to the lung are still accompanied by systemic outcomes. Omic research has only just begun to inform on the complex myriad of molecules released from the lung to the blood as byproducts of pulmonary pathology. These indirect mediators are diverse in their molecular make-up and activity in the periphery. The present review examines systemic outcomes attributed to pulmonary NP exposure and what is known about indirect pathological mediators released from the lung into the circulation. Further focus was directed to outcomes in the brain, a highly vascularized region susceptible to acute and longer-term outcomes. Findings here support the need for big-data toxicological studies to understand what drives these health outcomes and better predict, circumvent, and treat the potential health impacts arising from NP exposure scenarios.
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12
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Difference in Gas-Sensing behavior of Multi-walled carbon Nanotube-Paper-Based gas sensor to polar and non-Polar organic solvents. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Computational Studies of the Excitonic and Optical Properties of Armchair SWCNT and SWBNNT for Optoelectronics Applications. CRYSTALS 2022. [DOI: 10.3390/cryst12060870] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
In this study, the optical refractive constants of the (5, 5) SWBNNT and (5, 5) SWCNT systems were calculated in both parallel and perpendicular directions of the tube axis by using Quantum ESPRESSO and YAMBO code. It also extended the optical behaviors of (5, 5) SWCNT and (5, 5) SWBNNT to both perpendicular and parallel directions instead of the parallel directions reported in the literature. It also looked at the effects of the diameter of the nanotube on the optical properties instead of chiral angles. From our results, the best optical reflection was found for (5, 5) SWBNNT, while the best optical refraction was found with (5, 5) SWCNT. It was observed that the SWCNT demonstrates refraction in both parallel and perpendicular directions, while (5, 5) SWBNNT shows perfect absorption in perpendicular direction. These new features that appeared for both nanotubes in perpendicular directions were due to new optical band gaps, which appear in the perpendicular directions to both nanotubes’ axis. The electron energy loss (EEL) spectrum of SWBNNT revealed the prominent π- and π + δ- Plasmon peaks, which demonstrates themselves in the reflectivity spectrum. Furthermore, little effect of diameter was observed for the perpendicular direction to both nanotubes’ axis; as such, the combined properties of (5, 5) SWBNNT and (5, 5) SWCNT materials/systems for transmitting light offer great potential for applications in mobile phone touch screens and mobile network antennas. In addition, the studies of optical properties in the perpendicular axis will help bring ultra-small nanotubes such as SWCNT and SWBNNT to the applications of next-generation nanotechnology.
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Joglekar AV, Dehari D, Anjum MM, Dulla N, Chaudhuri A, Singh S, Agrawal AK. Therapeutic potential of venom peptides: insights in the nanoparticle-mediated venom formulations. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2022. [DOI: 10.1186/s43094-022-00415-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Abstract
Background
Venoms are the secretions produced by animals, generally for the purpose of self-defense or catching a prey. Biochemically venoms are mainly composed of proteins, lipids, carbohydrates, ions, etc., and classified into three major classes, viz. neurotoxic, hemotoxic and cytotoxic based upon their mode of action. Venoms are composed of different specific peptides/toxins which are responsible for their unique biological actions. Though venoms are generally seen as a source of death, scientifically venom is a complex biochemical substance having a specific pharmacologic action which can be used as agents to diagnose and cure a variety of diseases in humans.
Main body
Many of these venoms have been used since centuries, and their specified therapies can also be found in ancient texts such as Charka Samhita. The modern-day example of such venom therapeutic is captopril, an antihypertensive drug developed from venom of Bothrops jararaca. Nanotechnology is a modern-day science of building materials on a nanoscale with advantages like target specificity, increased therapeutic response and diminished side effects. In the present review we have introduced the venom, sources and related constituents in brief, by highlighting the therapeutic potential of venom peptides and focusing more on the nanoformulations-based approaches. This review is an effort to compile all such report to have an idea about the future direction about the nanoplatforms which should be focused to have more clinically relevant formulations for difficult to treat diseases.
Conclusion
Venom peptides which are fatal in nature if used cautiously and effectively can save life. Several research findings suggested that many of the fatal diseases can be effectively treated with venom peptides. Nanotechnology has emerged as novel strategy in diagnosis, treatment and mitigation of diseases in more effective ways. A variety of nanoformulation approaches have been explored to enhance the therapeutic efficacy and reduce the toxicity and targeted delivery of the venom peptide conjugated with it. We concluded that venom peptides along with nanoparticles can evolve as the new era for potential treatments of ongoing and untreatable diseases.
Graphical Abstract
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15
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Cohen Y, Reddy SK, Ya'akobovitz A. Heat transfer of graphene foams and carbon nanotube forests under forced convection. NANOTECHNOLOGY 2022; 33:345703. [PMID: 34325410 DOI: 10.1088/1361-6528/ac18d8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
The effective dissipation of heat from electronic devices is essential to enable their long-term operation and their further miniaturization. Graphene foams (GF) and carbon nanotube (CNT) forests are promising materials for thermal applications, including heat dissipation, due to their excellent thermal conduction and low thermal interface resistance. Here, we study the heat transfer characteristics of these two materials under forced convection. We applied controlled airflow to heated samples of GF and CNT forests while recording their temperature using infrared micro-thermography. Then, we analyzed the samples using finite-element simulations in conjunction with a genetic optimization algorithm, and we extracted their heat fluxes in both the horizontal and vertical directions. We found that boundary layers have a profound impact on the heat transfer characteristics of our samples, as they reduce the heat transfer in the horizontal direction. The heat transfer in the vertical direction, on the other hand, is dominated by the material conduction and is much higher than the horizontal heat transfer. Accordingly, we uncover the fundamental thermal behavior of GF and CNT forests, paving the way toward their successful integration into thermal applications, including cooling devices.
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Affiliation(s)
- Yaniv Cohen
- Department of Mechanical Engineering Faculty of Engineering Sciences, Ben-Gurion University of the Negev, Israel
| | - Siva K Reddy
- Department of Mechanical Engineering Faculty of Engineering Sciences, Ben-Gurion University of the Negev, Israel
| | - Assaf Ya'akobovitz
- Department of Mechanical Engineering Faculty of Engineering Sciences, Ben-Gurion University of the Negev, Israel
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16
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Tee ZY, Yeap SP, Hassan CS, Kiew PL. Nano and non-nano fillers in enhancing mechanical properties of epoxy resins: a brief review. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2021.2015778] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Zhao Yi Tee
- Department of Chemical and Petroleum Engineering, Faculty of Engineering, Technology & Built Environment, UCSI University, Kuala Lumpur, Malaysia
| | - Swee Pin Yeap
- Department of Chemical and Petroleum Engineering, Faculty of Engineering, Technology & Built Environment, UCSI University, Kuala Lumpur, Malaysia
- UCSI-Cheras Low Carbon Innovation Hub Research Consortium, Kuala Lumpur, Malaysia
| | - Cik Suhana Hassan
- Department of Mechanical and Mechatronics Engineering, Faculty of Engineering, Technology & Built Environment, UCSI University, Kuala Lumpur, Malaysia
| | - Peck Loo Kiew
- Department of Chemical and Environmental Engineering, Malaysia - Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
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17
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Ackermann J, Metternich JT, Herbertz S, Kruss S. Biosensing with Fluorescent Carbon Nanotubes. Angew Chem Int Ed Engl 2022; 61:e202112372. [PMID: 34978752 PMCID: PMC9313876 DOI: 10.1002/anie.202112372] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 12/28/2021] [Indexed: 12/23/2022]
Abstract
Biosensors are powerful tools for modern basic research and biomedical diagnostics. Their development requires substantial input from the chemical sciences. Sensors or probes with an optical readout, such as fluorescence, offer rapid, minimally invasive sensing of analytes with high spatial and temporal resolution. The near‐infrared (NIR) region is beneficial because of the reduced background and scattering of biological samples (tissue transparency window) in this range. In this context, single‐walled carbon nanotubes (SWCNTs) have emerged as versatile NIR fluorescent building blocks for biosensors. Here, we provide an overview of advances in SWCNT‐based NIR fluorescent molecular sensors. We focus on chemical design strategies for diverse analytes and summarize insights into the photophysics and molecular recognition. Furthermore, different application areas are discussed—from chemical imaging of cellular systems and diagnostics to in vivo applications and perspectives for the future.
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Affiliation(s)
- Julia Ackermann
- Biomedical Nanosensors, Fraunhofer Institute for Microelectronic Circuits and Systems, Finkenstrasse 61, 47057, Duisburg, Germany.,Department EBS, University Duisburg-Essen, Bismarckstrasse 81, 47057, Duisburg, Germany
| | - Justus T Metternich
- Physical Chemistry, Ruhr-University Bochum, Universitätsstrasse 150, 44801, Bochum, Germany.,Biomedical Nanosensors, Fraunhofer Institute for Microelectronic Circuits and Systems, Finkenstrasse 61, 47057, Duisburg, Germany
| | - Svenja Herbertz
- Biomedical Nanosensors, Fraunhofer Institute for Microelectronic Circuits and Systems, Finkenstrasse 61, 47057, Duisburg, Germany
| | - Sebastian Kruss
- Physical Chemistry, Ruhr-University Bochum, Universitätsstrasse 150, 44801, Bochum, Germany.,Biomedical Nanosensors, Fraunhofer Institute for Microelectronic Circuits and Systems, Finkenstrasse 61, 47057, Duisburg, Germany
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18
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Mansouri M, Rezagholipour Dizaji H, Saeidi MR, Mirzaheydari A, Vaezzadeh M. Interplay Between Competition Pinch Effect and Repulsion Force in Carbon Nanotubes. INTERNATIONAL JOURNAL OF NANOSCIENCE 2022. [DOI: 10.1142/s0219581x22500053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Ackermann J, Metternich JT, Herbertz S, Kruss S. Biosensing with Fluorescent Carbon Nanotubes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Julia Ackermann
- Biomedical Nanosensors Fraunhofer Institute for Microelectronic Circuits and Systems Finkenstrasse 61 47057 Duisburg Germany
- Department EBS University Duisburg-Essen Bismarckstrasse 81 47057 Duisburg Germany
| | - Justus T. Metternich
- Physical Chemistry Ruhr-University Bochum Universitätsstrasse 150 44801 Bochum Germany
- Biomedical Nanosensors Fraunhofer Institute for Microelectronic Circuits and Systems Finkenstrasse 61 47057 Duisburg Germany
| | - Svenja Herbertz
- Biomedical Nanosensors Fraunhofer Institute for Microelectronic Circuits and Systems Finkenstrasse 61 47057 Duisburg Germany
| | - Sebastian Kruss
- Physical Chemistry Ruhr-University Bochum Universitätsstrasse 150 44801 Bochum Germany
- Biomedical Nanosensors Fraunhofer Institute for Microelectronic Circuits and Systems Finkenstrasse 61 47057 Duisburg Germany
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20
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Yang D, Qi X, Zhang W, Yang N, Chen M, Wang Y, Huang L, Wang J, Wang S, Strizhak P, Tang J. Extremely high reinforcement of high‐density polyethylene by low loading of unzipped multi‐wall carbon nanotubes. J Appl Polym Sci 2022. [DOI: 10.1002/app.51478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Di Yang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Xiaohua Qi
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Wenna Zhang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Na Yang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Mengyao Chen
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Yao Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Linjun Huang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Jiuxing Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Shicao Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Peter Strizhak
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
- L.V. Pysarzhevskii Institute of Physical Chemistry National Academy of Sciences of Ukraine Kyiv Ukraine
| | - Jianguo Tang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
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21
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Parhi S, Pal S, Das SK, Ghosh P. Strategies toward development of antimicrobial biomaterials for dental healthcare applications. Biotechnol Bioeng 2021; 118:4590-4622. [PMID: 34599764 DOI: 10.1002/bit.27948] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/19/2021] [Accepted: 09/26/2021] [Indexed: 12/25/2022]
Abstract
Several approaches for elimination of oral pathogens are being explored at the present time since oral diseases remain prevalent affecting approximately 3.5 billion people worldwide. Need for antimicrobial biomaterials in dental healthcare include but is not restricted to designing resin composites and adhesives for prevention of dental caries. Constant efforts are also being made to develop antimicrobial strategies for clearance of endodontic space prior root canal treatment and for treatment of periimplantitis and periodontitis. This article discusses various conventional and nanotechnology-based strategies to achieve antimicrobial efficacy in dental biomaterials. Recent developments in the design and synthesis of antimicrobial peptides and antifouling zwitterionic polymers to effectively lessen the risks of antimicrobial drug resistance are also outlined in this review. Further, the role of contemporary strategies such as use of smart biomaterials, ionic solvent-based biomaterials and quorum quenchers incorporated biomaterials in the elimination of dental pathogens are described in detail. Lastly, we mentioned the approach of using polymers to print custom-made three-dimensional antibacterial dental products via additive manufacturing technologies. This review provides a critical perspective on the chemical, biomimetic, and engineering strategies intended for developing antimicrobial biomaterials that have the potential to substantially improve the dental health.
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Affiliation(s)
- Shivangi Parhi
- Division of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, India
| | - Sreyasi Pal
- Division of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Sujoy K Das
- Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, India.,Division of Infectious Diseases and Immunology, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Paulomi Ghosh
- Division of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, India
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22
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Fingolo AC, de Morais VB, Costa SV, Corrêa CC, Lodi B, Santhiago M, Bernardes JS, Bufon CCB. Enhanced Hydrophobicity in Nanocellulose-Based Materials: Toward Green Wearable Devices. ACS APPLIED BIO MATERIALS 2021; 4:6682-6689. [PMID: 35006971 DOI: 10.1021/acsabm.1c00317] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Nanocellulose is a promising material for fabricating green, biocompatible, flexible, and foldable devices. One of the main issues of using nanocellulose as a fundamental component for wearable electronics is the influence of environmental conditions on it. The water adsorption promotes the swelling of nanopaper substrates, which directly affects the devices' electrical properties prepared on/with it. Here, plant-based nanocellulose substrates, and ink composites deposited on them, are chemically modified using hexamethyldisilazane to enhance the system's hydrophobicity. After the treatment, the electrical properties of the devices exhibit stable operation under humidity levels around 95%. Such stability demonstrates that the hexamethyldisilazane modification substantially suppresses the water adsorption on fundamental device structures, namely, substrate plus conducting ink. These results attest to the robustness necessary to use nanocellulose as a key material in wearable devices such as electronic skins and tattoos and contribute to the worldwide efforts to create biodegradable devices engineered in a more deterministic fashion.
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Affiliation(s)
- Ana C Fingolo
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-970, São Paulo, Brazil.,Program in Materials Science and Technology (POSMAT), São Paulo State University (UNESP), Bauru17033-360 , São Paulo Brazil
| | - Vitória B de Morais
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-970, São Paulo, Brazil
| | - Saionara V Costa
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-970, São Paulo, Brazil
| | - Cátia C Corrêa
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-970, São Paulo, Brazil
| | - Beatriz Lodi
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-970, São Paulo, Brazil
| | - Murilo Santhiago
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-970, São Paulo, Brazil.,Center for Natural and Human Sciences, Federal University of ABC, Santo André 09210-580, São Paulo, Brazil
| | - Juliana S Bernardes
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-970, São Paulo, Brazil.,Center for Natural and Human Sciences, Federal University of ABC, Santo André 09210-580, São Paulo, Brazil
| | - Carlos C B Bufon
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-970, São Paulo, Brazil.,Program in Materials Science and Technology (POSMAT), São Paulo State University (UNESP), Bauru17033-360 , São Paulo Brazil
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23
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Luo SXL, Liu RY, Lee S, Swager TM. Electrocatalytic Isoxazoline-Nanocarbon Metal Complexes. J Am Chem Soc 2021; 143:10441-10453. [PMID: 34213315 DOI: 10.1021/jacs.1c05439] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report the synthesis of new carbon-nanomaterial-based metal chelates that enable effective electronic coupling to electrocatalytic transition metals. In particular, multiwalled carbon nanotubes (MWCNTs) and few-layered graphene (FLG) were covalently functionalized by a microwave-assisted cycloaddition with nitrile oxides to form metal-binding isoxazoline functional groups with high densities. The covalent attachment was evidenced by Raman spectroscopy, and the chemical identity of the surface functional groups was confirmed by X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The functional carbon nanomaterials effectively chelate precious metals Ir(III), Pt(II), and Ru(III), as well as earth-abundant metals such as Ni(II), to afford materials with metal contents as high as 3.0 atom %. The molecularly dispersed nature of the catalysts was confirmed by X-ray absorption spectroscopy (XAS) and energy-dispersive X-ray spectroscopy (STEM-EDS) elemental mapping. The interplay between the chelate structure on the graphene surface and its metal binding ability has also been investigated by a combination of experimental and computational studies. The defined ligands on the graphene surfaces enable the formation of structurally precise heterogeneous molecular catalysts. The direct attachment of the isoxazoline functional group on the graphene surfaces provides strong electronic coupling between the chelated metal species and the conductive carbon nanomaterial support. We demonstrate that the metal-chelated carbon nanomaterials are effective heterogeneous catalysts in the oxygen evolution reaction with low overpotentials and tunable catalytic activity.
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Affiliation(s)
- Shao-Xiong Lennon Luo
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Richard Y Liu
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Sungsik Lee
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Timothy M Swager
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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24
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Recent Developments in Carbon Nanotubes-Reinforced Ceramic Matrix Composites: A Review on Dispersion and Densification Techniques. CRYSTALS 2021. [DOI: 10.3390/cryst11050457] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Ceramic matrix composites (CMCs) are well-established composites applied on commercial, laboratory, and even industrial scales, including pottery for decoration, glass–ceramics-based light-emitting diodes (LEDs), commercial cooking utensils, high-temperature laboratory instruments, industrial catalytic reactors, and engine turbine blades. Despite the extensive applications of CMCs, researchers had to deal with their brittleness, low electrical conductivity, and low thermal properties. The use of carbon nanotubes (CNTs) as reinforcement is an effective and efficient method to tailor the ceramic structure at the nanoscale, which provides considerable practicability in the fabrication of highly functional CMC materials. This article provides a comprehensive review of CNTs-reinforced CMC materials (CNTs-CMCs). We critically examined the notable challenges during the synthesis of CNTs-CMCs. Five CNT dispersion processes were elucidated with a comparative study of the established research for the homogeneity distribution in the CMCs and the enhanced properties. We also discussed the effect of densification techniques on the properties of CNTs-CMCs. Additionally, we synopsized the outstanding microstructural and functional properties of CNTs in the CNTs-CMCs, namely stimulated ceramic crystallization, high thermal conductivity, bandgap reduction, and improved mechanical toughness. We also addressed the fundamental insights for the future technological maturation and advancement of CNTs-CMCs.
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25
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Recent Advances in the Synthesis of Nanocellulose Functionalized–Hybrid Membranes and Application in Water Quality Improvement. Processes (Basel) 2021. [DOI: 10.3390/pr9040611] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The increasing discharge of voluminous non or partially treated wastewaters characterized by complex contaminants poses significant ecological and health risks. Particularly, this practice impacts negatively on socio-economic, technological, industrial, and agricultural development. Therefore, effective control of water pollution is imperative. Over the past decade, membrane filtration has been established as an effective and commercially attractive technology for the separation and purification of water. The performance of membrane-based technologies relies on the intrinsic properties of the membrane barrier itself. As a result, the development of innovative techniques for the preparation of highly efficient membranes has received remarkable attention. Moreover, growing concerns related to cost-effective and greener technologies have induced the need for eco-friendly, renewable, biodegradable, and sustainable source materials for membrane fabrication. Recently, advances in nanotechnology have led to the development of new high-tech nanomaterials from natural polymers (e.g., cellulose) for the preparation of environmentally benign nanocomposite membranes. The synthesis of nanocomposite membranes using nanocelluloses (NCs) has become a prominent research field. This is attributed to the exceptional characteristics of these nanomaterials (NMs) namely; excellent and tuneable surface chemistry, high mechanical strength, low-cost, biodegradability, biocompatibility, and renewability. For this purpose, the current paper opens with a comprehensive yet concise description of the various types of NCs and their most broadly utilized production techniques. This is closely followed by a critical review of how NC substrates and their surface-modified versions affect the performance of the fabricated NC-based membranes in various filtration processes. Finally, the most recent processing technologies for the preparation of functionalized NCs-based composite membranes are discussed in detail and their hybrid characteristics relevant to membrane filtration processes are highlighted.
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26
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Mechanical Properties of the Carbon Nanotube Modified Epoxy-Carbon Fiber Unidirectional Prepreg Laminates. Polymers (Basel) 2021; 13:polym13050770. [PMID: 33801511 PMCID: PMC7958840 DOI: 10.3390/polym13050770] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 11/22/2022] Open
Abstract
The effect of plasma treatment of the multi-walled carbon nanotube (MWCNT) surface on the fracture toughness of an aerospace grade epoxy resin and its unidirectional (UD) carbon fiber prepreg laminates has attracted scientific interest. A prepreg route eliminates the possible risk of carbon nanotube filtration by unidirectional carbon fibers. X-ray photoelectron spectroscopy results suggested that oxygen atom concentration at the nanotube surface was increased from 0.9% to 3.7% after plasma modification of the carbon nanotubes. A low number (up to 0.5 wt.%) of MWCNTs was added to epoxy resin and their carbon fiber prepreg laminates. Transmission electron micrographs revealed that the plasma treatment resulted in a better dispersion and distribution of MWCNTs in the epoxy resin. Plasma-treated MWCNTs resulted in a more pronounced resistance to the crack propagation of epoxy resin. During the production of the reference and nanotube-modified prepregs, a comparable prepreg quality was achieved. Neat nanotubes agglomerated strongly in the resin-rich regions of laminates lowering the interlaminar fracture toughness under mode I and mode II loading. However, plasma-treated nanotubes were found mostly as single particles in the resin-rich regions of laminates promoting higher energy dissipation during crack propagation via a CNT pull-out mechanism.
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27
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Wang J, Ma Q, Zhang Z, Li S, Diko CS, Dai C, Zhang H, Qu Y. Bacteria mediated Fenton-like reaction drives the biotransformation of carbon nanomaterials. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 746:141020. [PMID: 32750576 DOI: 10.1016/j.scitotenv.2020.141020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
Carbon nanomaterials (CNs), which gain heightened attention as novel materials, are increasingly incorporated into daily products and thus are released into the environment. Limited research on CNs environmental fates lags their industry growth, only few bacteria have been confirmed to biotransform CNs and the mechanism behind has not been revealed yet. In this study, four types of commercial CNs, i.e. graphene oxide (GO), reduced graphene oxide (RGO), single walled carbon nanotubes (SWCNTs), and oxidized (carboxylated) SWCNTs, were selected for investigation. The biotransformation of CNs by Labrys sp. WJW, which could grow with these CNs as the sole carbon source, was investigated. The bacterial transformation was proved by qPCR, transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, liquid chromatography/time-of-flight/mass spectrometry, and gas chromatograph-mass spectrometry analyses. The biotransformation resulted in morphology change, defect increase and functional group change of these CNs. Furthermore, the underlying mechanism of CNs biodegradation mediated by extracellular Fenton-like reaction was demonstrated. In this reaction, the OH production was mediated by reduction of H2O2 involved a continuous cycle of Fe(II)/Fe(III). These findings reveal a novel degradation mechanism of microorganism towards high molecular weight substrate, which will provide a new insight into the environmental fate of CNs and the guidance for their safer use.
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Affiliation(s)
- Jingwei Wang
- Institute of Environmental Systems Biology, College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China
| | - Qiao Ma
- Institute of Environmental Systems Biology, College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China
| | - Zhaojing Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Shuzhen Li
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Catherine Sekyerebea Diko
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Chunxiao Dai
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Henglin Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Yuanyuan Qu
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
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28
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Trakakis G, Tomara G, Datsyuk V, Sygellou L, Bakolas A, Tasis D, Parthenios J, Krontiras C, Georga S, Galiotis C, Papagelis K. Mechanical, Electrical, and Thermal Properties of Carbon Nanotube Buckypapers/Epoxy Nanocomposites Produced by Oxidized and Epoxidized Nanotubes. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4308. [PMID: 32992513 PMCID: PMC7579272 DOI: 10.3390/ma13194308] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 11/16/2022]
Abstract
High volume fraction carbon nanotube (CNT) composites (7.5-16% vol.) were fabricated by the impregnation of CNT buckypapers into epoxy resin. To enhance the interfacial reaction with the epoxy resin, the CNTs were modified by two different treatments, namely, an epoxidation treatment and a chemical oxidation. The chemical treatment was found to result in CNT length severance and to affect the porosity of the buckypapers, having an important impact on the physico-mechanical properties of the nanocomposites. Overall, the mechanical, electrical, and thermal properties of the impregnated buckypapers were found to be superior of the neat epoxy resin, offering an attractive combination of mechanical, electrical, and thermal properties for multifunctional composites.
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Affiliation(s)
- George Trakakis
- Foundation of Research and Technology Hellas, Institute of Chemical Engineering Sciences (ICE-HT), P.O. Box 1414, GR-26504 Patras, Greece; (G.T.); (L.S.); (J.P.); (C.G.)
| | - Georgia Tomara
- Department of Physics, University of Patras, 26504 Rio Patras, Greece; (G.T.); (C.K.); (S.G.)
| | - Vitaliy Datsyuk
- Physics Department, Institute of Experimental Physic, Free University Berlin, Arnimallee 14, 14195 Berlin, Germany;
| | - Labrini Sygellou
- Foundation of Research and Technology Hellas, Institute of Chemical Engineering Sciences (ICE-HT), P.O. Box 1414, GR-26504 Patras, Greece; (G.T.); (L.S.); (J.P.); (C.G.)
| | - Asterios Bakolas
- School of Chemical Engineering, National Technical University of Athens, GR-15773 Athens, Greece;
| | - Dimitrios Tasis
- Department of Chemistry (Section of Physical Chemistry), University of Ioannina, 45110 Ioannina, Greece;
| | - John Parthenios
- Foundation of Research and Technology Hellas, Institute of Chemical Engineering Sciences (ICE-HT), P.O. Box 1414, GR-26504 Patras, Greece; (G.T.); (L.S.); (J.P.); (C.G.)
| | - Christoforos Krontiras
- Department of Physics, University of Patras, 26504 Rio Patras, Greece; (G.T.); (C.K.); (S.G.)
| | - Stavroula Georga
- Department of Physics, University of Patras, 26504 Rio Patras, Greece; (G.T.); (C.K.); (S.G.)
| | - Costas Galiotis
- Foundation of Research and Technology Hellas, Institute of Chemical Engineering Sciences (ICE-HT), P.O. Box 1414, GR-26504 Patras, Greece; (G.T.); (L.S.); (J.P.); (C.G.)
- Department of Chemical Engineering, University of Patras, GR-26504 Patras, Greece
| | - Kostas Papagelis
- Foundation of Research and Technology Hellas, Institute of Chemical Engineering Sciences (ICE-HT), P.O. Box 1414, GR-26504 Patras, Greece; (G.T.); (L.S.); (J.P.); (C.G.)
- School of Physics, Department of Solid State Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Catalytic Preparation of Carbon Nanotubes from Waste Polyethylene Using FeNi Bimetallic Nanocatalyst. NANOMATERIALS 2020; 10:nano10081517. [PMID: 32756317 PMCID: PMC7466384 DOI: 10.3390/nano10081517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 07/27/2020] [Accepted: 07/28/2020] [Indexed: 11/18/2022]
Abstract
In this work, carbon nanotubes (CNTs) were synthesized by catalytic pyrolysis from waste polyethylene in Ar using an in-situ catalyst derived from ferric nitrate and nickel nitrate precursors. The influence factors (such as temperature, catalyst content and Fe/Ni molar ratio) on the formation of CNTs were investigated. The results showed that with the temperature increasing from 773 to 1073 K, the carbon yield gradually increased whereas the aspect (length-diameter) ratio of CNTs initially increased and then decreased. The optimal growth temperature of CNTs was 973 K. With increasing the Fe/Ni molar ratio in an FeNi bimetallic catalyst, the yield of CNTs gradually increased, whereas their aspect ratio first increased and then decreased. The optimal usage of the catalyst precursor (Fe/Ni molar ratio was 5:5) was 0.50 wt% with respect to the mass of polyethylene. In this case, the yield of CNTs reached as high as 20 wt%, and their diameter and length were respectively 20–30 nm, and a few tens of micrometers. The simple low-cost method developed in this work could be used to address the environmental concerns about plastic waste, and synthesize high value-added CNTs for a range of future applications.
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30
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Jha R, Singh A, Sharma P, Fuloria NK. Smart carbon nanotubes for drug delivery system: A comprehensive study. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101811] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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31
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Drug delivery systems based on nanoparticles and related nanostructures. Eur J Pharm Sci 2020; 151:105412. [DOI: 10.1016/j.ejps.2020.105412] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 05/31/2020] [Accepted: 06/02/2020] [Indexed: 12/11/2022]
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32
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Moseenkov SI, Zavorin AV, Ishchenko AV, Serkova AN, Selyutin AG, Kuznetsov VL. Using Current-Voltage Characteristics to Control the Structure of Contacts in Polyethylene Based Composites Modified by Multiwalled Carbon Nanotubes. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476620040174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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33
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Molecular Interpretation of Pharmaceuticals’ Adsorption on Carbon Nanomaterials: Theory Meets Experiments. Processes (Basel) 2020. [DOI: 10.3390/pr8060642] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The ability of carbon-based nanomaterials (CNM) to interact with a variety of pharmaceutical drugs can be exploited in many applications. In particular, they have been studied both as carriers for in vivo drug delivery and as sorbents for the treatment of water polluted by pharmaceuticals. In recent years, the large number of experimental studies was also assisted by computational work as a tool to provide understanding at molecular level of structural and thermodynamic aspects of adsorption processes. Quantum mechanical methods, especially based on density functional theory (DFT) and classical molecular dynamics (MD) simulations were mainly applied to study adsorption/release of various drugs. This review aims to compare results obtained by theory and experiments, focusing on the adsorption of three classes of compounds: (i) simple organic model molecules; (ii) antimicrobials; (iii) cytostatics. Generally, a good agreement between experimental data (e.g. energies of adsorption, spectroscopic properties, adsorption isotherms, type of interactions, emerged from this review) and theoretical results can be reached, provided that a selection of the correct level of theory is performed. Computational studies are shown to be a valuable tool for investigating such systems and ultimately provide useful insights to guide CNMs materials development and design.
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34
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Xie J, Ma J, Zhang C, Kong X, Wang Z, Waite TD. Effect of the Presence of Carbon in Ti 4O 7 Electrodes on Anodic Oxidation of Contaminants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:5227-5236. [PMID: 32202775 DOI: 10.1021/acs.est.9b07398] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Magnéli phase titanium suboxide, Ti4O7, has attracted increasing attention as a potential electrode material in anodic oxidation as a result of its high efficiency and (electro)chemical stability. Although carbon materials have been amended to Ti4O7 electrodes to enhance the electrochemical performance or are present as an unwanted residual during the electrode fabrication, there has been no comprehensive investigation of how these carbon materials affect the electrochemical performance of the resultant Ti4O7 electrodes. As such, we investigated the electrochemical properties of Ti4O7 electrodes impregnated with carbon materials at different contents (and chemical states). Results of this study showed that while pure Ti4O7 electrodes exhibited an extremely low rate of interfacial electron transfer, the introduction of minor amounts of carbon materials (at values as low as 0.1 wt %) significantly facilitated the electron transfer process and decreased the oxygen evolution reaction potential. The oxygen-containing functional groups have been shown to play an important role in interfacial electron transfer with moderate oxidation of the carbon groups aiding electron uptake at the electrode surface (and consequently organic oxidation) while the generation of carboxyl groups-a process that is likely to occur in long-term operation-increased the interfacial resistance and thus retarded the oxidation process. Results of this study provide a better understanding of the relationship between the nature of the electrode surface and anodic oxidation performance with these insights likely to facilitate improved electrode design and optimization of operation of anodic oxidation reactors.
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Affiliation(s)
- Jiangzhou Xie
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Jinxing Ma
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Changyong Zhang
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Xiangtong Kong
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Zhiwei Wang
- Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - T David Waite
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
- Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China
- University of New South Wales Centre for Transformational Environmental Technologies, Yixing, Jiangsu Province 214206, P. R. China
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35
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Hines R, Hajilounezhad T, Love-Baker C, Koerner G, Maschmann MR. Growth and Mechanics of Heterogeneous, 3D Carbon Nanotube Forest Microstructures Formed by Sequential Selective-Area Synthesis. ACS APPLIED MATERIALS & INTERFACES 2020; 12:17893-17900. [PMID: 32208632 DOI: 10.1021/acsami.0c03082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Three-dimensional carbon nanotube (CNT) forest microstructures are synthesized using sequenced, site-specific synthesis techniques. Thin-film layers of Al2O3 and Al2O3/Fe are patterned to support film-catalyst and floating-catalyst chemical vapor deposition (CVD) in specific areas. Al2O3 regions support only floating-catalyst CVD, whereas regions of layered Al2O3/Fe support both film- and floating-catalyst CNT growth. Sequenced application of the two CVD methods produced heterogeneous 3D CNT forest microstructures, including regions of only film-catalyst CNTs, only floating-catalyst CNTs, and vertically stacked layers of each. The compressive mechanical behavior of the heterogeneous CNT forests was evaluated, with the stacked layers exhibiting two distinct buckling plateaus. Finite element simulation of the stacked layers demonstrated that the relatively soft film-catalyst CNT forests were nearly fully buckled prior to large-scale deformation of the bottom floating-catalyst CNT forests.
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Affiliation(s)
- Ryan Hines
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, Missouri 65211, United States
| | - Taher Hajilounezhad
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, Missouri 65211, United States
| | - Cole Love-Baker
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Gordon Koerner
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, Missouri 65211, United States
| | - Matthew R Maschmann
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, Missouri 65211, United States
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36
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Cohen Y, Reddy SK, Ben-Shimon Y, Ya'akobovitz A. Height and morphology dependent heat dissipation of vertically aligned carbon nanotubes. NANOTECHNOLOGY 2019; 30:505705. [PMID: 31491776 DOI: 10.1088/1361-6528/ab424e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The continuous miniaturization of electronic devices substantially increases their power density, and consequently, requires effective cooling of these components. Vertically aligned carbon nanotubes (VA-CNTs) constitute one of the most promising materials for use as a high-end heat dissipation element due to their high thermal conductivity and large surface area. However, the lack of a clear understanding of the heat transfer mechanisms of VA-CNTs has so far impeded their large-scale use as cooling elements. Our infrared micro-thermography analysis revealed that the heat dissipation of VA-CNTs is determined mainly by their height, such that the heat dissipation behavior of tall samples was dominated by convection from the carbon nanotube (CNT) sidewalls. The mechanism of heat transfer in short VA-CNTs, in contrast, was determined by their morphology. Short VA-CNTs with highly organized CNT formations or with low thermal conductance exhibited convective heat dissipation similar to that of tall VA-CNTs, while other short VA-CNTs exhibited heat transfer dominated by conduction along the CNTs. This study provides important guidelines regarding the parameters that can be changed to optimize the performances of VA-CNTs in thermal applications. These applications include cooling elements in electronic devices, where convection is required, or thermal interface materials, where conduction is required.
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Affiliation(s)
- Yaniv Cohen
- Department of Mechanical Engineering Faculty of Engineering Sciences, Ben-Gurion University of the Negev, Be'er Sheva, Israel
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37
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Huang Q, Zhuang G, Zhang M, Wang J, Wang S, Wu Y, Yang S, Du P. A Long π-Conjugated Poly(para-Phenylene)-Based Polymeric Segment of Single-Walled Carbon Nanotubes. J Am Chem Soc 2019; 141:18938-18943. [DOI: 10.1021/jacs.9b10358] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Qiang Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, iChEM, University of Science and Technology of China (USTC), 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China
| | - Guilin Zhuang
- College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, Zhejiang Province 310032, P. R. China
| | - Mengmeng Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, iChEM, University of Science and Technology of China (USTC), 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China
| | - Jinyi Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, iChEM, University of Science and Technology of China (USTC), 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China
| | - Shengda Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, iChEM, University of Science and Technology of China (USTC), 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China
| | - Yayu Wu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, iChEM, University of Science and Technology of China (USTC), 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China
| | - Shangfeng Yang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, iChEM, University of Science and Technology of China (USTC), 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China
| | - Pingwu Du
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, iChEM, University of Science and Technology of China (USTC), 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China
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38
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Gíslason PM, Skúlason E. Catalytic trends of nitrogen doped carbon nanotubes for oxygen reduction reaction. NANOSCALE 2019; 11:18683-18690. [PMID: 31588951 DOI: 10.1039/c9nr03195b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Replacing the state-of-the-art fuel cell catalyst platinum for a cheaper and abundant alternative would make the hydrogen economy viable. Both nitrogen-doped graphene and nitrogen-doped carbon nanotubes (N-CNT) have been shown to be capable of acting as a metal-free catalyst for the oxygen reduction reaction (ORR). Until now, most of the research has been focused on the nitrogen doping and less on the structure of the nanotubes. Here, density functional theory calculations are used to calculate trends in ORR catalytic activity of graphitic-N-doped CNTs of different sizes and chirality of selected tubes between (4,0) and (20,10). This includes 13 armchair tubes, 17 zig-zag tubes and 42 chiral tubes, or 72 N-CNTs in total. 22 tubes are predicted to have a lower overpotential than the platinum catalyst and 46 tubes have lower overpotential than nitrogen doped graphene. The most active tubes are (14,7), (12,6), and (8,8), and display an overpotential of around 0.35 V, or 0.1 V lower overpotential than predicted on Pt(111) with the same level of theory.
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Affiliation(s)
| | - Egill Skúlason
- Science Institute and Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland VR-III, 107 Reykjavík, Iceland.
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39
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Nemeth K, Varro N, Reti B, Berki P, Adam B, Belina K, Hernadi K. Synthesis and investigation of SiO 2-MgO coated MWCNTs and their potential application. Sci Rep 2019; 9:15113. [PMID: 31641251 PMCID: PMC6805926 DOI: 10.1038/s41598-019-51745-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 10/01/2019] [Indexed: 11/09/2022] Open
Abstract
In the present publication, multiwalled carbon nanotubes (MWCNT) coated with SiO2-MgO nanoparticles were successfully fabricated via sol-gel method to facilitate their incorporation into polymer matrices. Magnesium acetate tetrahydrate and tetraethyl orthosilicate were used as precursors. The coated MWCNTs were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and Raman spectroscopy methods. These investigation techniques verified the presence of the inorganic nanoparticles on the surface of MWCNTs. Surface coated MWCNTs were incorporated into polyamide (PA), polyethylene (PE) and polypropylene (PP) matrices via melt blending. Tensile test and differential scanning calorimetry (DSC) investigations were performed on SiO2-MgO/MWCNT polymer composites to study the reinforcement effect on the mechanical and thermal properties of the products. The obtained results indicate that depending on the type of polymer, the nanoparticles differently influenced the Young's modulus of polymers. Generally, the results demonstrated that polymers treated with SiO2-MgO/MWCNT nanoparticles have higher modulus than neat polymers. DSC results showed that nanoparticles do not change the melting and crystallization behavior of PP significantly. According to the obtained results, coated MWCNTs are promising fillers to enhance mechanical properties of polymers.
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Affiliation(s)
- Krisztian Nemeth
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, HU-6720, Szeged, Hungary
| | - Nikolett Varro
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, HU-6720, Szeged, Hungary
| | - Balazs Reti
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, HU-6720, Szeged, Hungary
| | - Peter Berki
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, HU-6720, Szeged, Hungary
| | - Balazs Adam
- GAMF Faculty of Engineering and Computer Science, John von Neumann University, Izsáki út 10, HU-6000, Kecskemét, Hungary
| | - Karoly Belina
- GAMF Faculty of Engineering and Computer Science, John von Neumann University, Izsáki út 10, HU-6000, Kecskemét, Hungary
| | - Klara Hernadi
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, HU-6720, Szeged, Hungary.
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40
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Wang J, Zhuang G, Huang Q, Xiao Y, Zhou Y, Liu H, Du P. Precise synthesis and photophysical properties of a small chiral carbon nanotube segment: cyclo[7]paraphenylene-2,6-naphthylene. Chem Commun (Camb) 2019; 55:9456-9459. [PMID: 31328190 DOI: 10.1039/c9cc04700j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Herein we report the precise synthesis and photophysical properties of a naphthalene-containing carbon nanohoop, cyclo[7]paraphenylene-2,6-naphthylene ([7]CPPNa2,6), as a sidewall segment of a [9,8] single-walled carbon nanotube ([9,8]SWNT) using a rationally designed strategy. To the best of our knowledge, [7]CPPNa2,6 represents the smallest chiral SWNT segment ever reported. The structure was confirmed by 1H NMR, 2D 1H-1H COSY NMR, 13C NMR, and HR-MS spectrometry. The nanohoop's interesting photophysical properties were investigated by steady-state and time-resolved spectroscopy combined with theoretical calculations. Compared with the [8]CPP and [9]CPP nanohoops, [7]CPPNa2,6 has a moderate strain energy (89.6 kcal mol-1) and a higher HOMO-LUMO gap (3.5 eV).
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Affiliation(s)
- Jinyi Wang
- Hefei National Laboratory of Physical Science at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China (USTC), 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China.
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41
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Sigwadi R, Dhlamini MS, Mokrani T, Nemavhola F. Enhancing the mechanical properties of zirconia/Nafion ® nanocomposite membrane through carbon nanotubes for fuel cell application. Heliyon 2019; 5:e02112. [PMID: 31372560 PMCID: PMC6661287 DOI: 10.1016/j.heliyon.2019.e02112] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 06/11/2019] [Accepted: 07/16/2019] [Indexed: 11/30/2022] Open
Abstract
Membranes are widely used daily, such as for filtration in reverse osmosis, or in the form of electrolyte membrane fuel cells. Modified Nafion® membranes were synthesised by impregnation and their mechanical properties were observed. The effect of the incorporation of a ZrO2-CNT nano-filler within Nafion® membrane on the thermal stability and crystallinity was investigated by TGA and XRD. Tensile test results show the increases in the mechanical properties of Nafion® 117 membranes impregnated with ZrO2-CNT when compared with that of commercial Nafion® 117 membranes. The results also show that adding ZrO2-CNT in Nafion® 117 membranes improves the water contact angle and water uptake, as it enhances water retention within the membrane. The SEM results indicated that ZrO2-CNT was well distributed in the Nafion® 117 membrane pores through the impregnation method.
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Affiliation(s)
- R Sigwadi
- Department of Chemical Engineering, University of South Africa, Private Bag X6, Florida, 1710, South Africa
| | - M S Dhlamini
- Department of Physics, University of South Africa, Private Bag X6, Florida, 1710, South Africa
| | - T Mokrani
- Department of Chemical Engineering, University of South Africa, Private Bag X6, Florida, 1710, South Africa
| | - F Nemavhola
- Department of Mechanical Engineering, University of South Africa, Private Bag X6, Florida, 1710, South Africa
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42
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Cui S, Huang Q, Wang J, Jia H, Huang P, Wang S, Du P. From Planar Macrocycle to Cylindrical Molecule: Synthesis and Properties of a Phenanthrene-Based Coronal Nanohoop as a Segment of [6,6]Carbon Nanotube. Org Lett 2019; 21:5917-5921. [PMID: 31329458 DOI: 10.1021/acs.orglett.9b02055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herein, we explore phenanthrene as the building block to synthesize a hoop-shaped [6,6]carbon nanotube segment from a planar macocycle via a Diels-Alder reaction. The phenanthrene-based coronal nanohoop 7 was fully characterized by HR-MS, NMR, and other spectroscopies. In addition, its photophysical properties and the supramolecular interactions between 7 and fullerene C60 were investigated. This present work suggests an easily accessible Diels-Alder reaction strategy to synthesize cylindrical nanohoops.
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Affiliation(s)
- Shengsheng Cui
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, iChEM, Department of Materials Science and Engineering , University of Science and Technology of China (USTC) , 96 Jinzhai Road , Hefei , Anhui Province 230026 , China
| | - Qiang Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, iChEM, Department of Materials Science and Engineering , University of Science and Technology of China (USTC) , 96 Jinzhai Road , Hefei , Anhui Province 230026 , China
| | - Jinyi Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, iChEM, Department of Materials Science and Engineering , University of Science and Technology of China (USTC) , 96 Jinzhai Road , Hefei , Anhui Province 230026 , China
| | - Hongxing Jia
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, iChEM, Department of Materials Science and Engineering , University of Science and Technology of China (USTC) , 96 Jinzhai Road , Hefei , Anhui Province 230026 , China
| | - Pingsen Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, iChEM, Department of Materials Science and Engineering , University of Science and Technology of China (USTC) , 96 Jinzhai Road , Hefei , Anhui Province 230026 , China
| | - Shengda Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, iChEM, Department of Materials Science and Engineering , University of Science and Technology of China (USTC) , 96 Jinzhai Road , Hefei , Anhui Province 230026 , China
| | - Pingwu Du
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, iChEM, Department of Materials Science and Engineering , University of Science and Technology of China (USTC) , 96 Jinzhai Road , Hefei , Anhui Province 230026 , China
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Gong Z, Pan YL, Videen G, Wang C. Online Characterization of Single Airborne Carbon Nanotube Particles Using Optical Trapping Raman Spectroscopy. APPLIED SPECTROSCOPY 2019; 73:910-916. [PMID: 30654627 DOI: 10.1177/0003702819828809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Carbon nanotubes (CNTs) have become recognized as a potential environmental and health hazard as their applications are broadening and manufacturing costs are reducing. Fundamental information of CNTs in air is of significant importance to our understanding of their environmental fate as well as to further applications. Extensive efforts have been made over decades on characterizing CNTs; however, a majority of the studies are of bulk or CNTs dispersed on substrates. In the present study, we characterize single CNT particles in air using optical trapping Raman spectroscopy (OT-RS). Different types of CNT particles, as well as glassy carbon spheres, were optically trapped in air. Their physical properties were viewed by microscopic bright field images and scattering images; their chemical properties and structural information can be inferred from characteristic Raman bands. The system can also spatially resolve the morphology and chemical distribution of optically trapped CNT particles in air. The OT-RS technique combines single-particle morphological and chemical information and offers an online method to characterize the physicochemical properties of single CNT particles at their native states in air.
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Affiliation(s)
- Zhiyong Gong
- 1 Department of Physics and Astronomy, Mississippi State University, Starkville, MS, USA
| | - Yong-Le Pan
- 2 U.S. Army Research Laboratory, Adelphi, MD, USA
| | | | - Chuji Wang
- 1 Department of Physics and Astronomy, Mississippi State University, Starkville, MS, USA
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Kanimozhi C, Shea MJ, Ko J, Wei W, Huang P, Arnold MS, Gopalan P. Removable Nonconjugated Polymers To Debundle and Disperse Carbon Nanotubes. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00352] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Catherine Kanimozhi
- Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Matthew J. Shea
- Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Jaehyoung Ko
- Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Wei Wei
- Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Peishen Huang
- Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Michael S. Arnold
- Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Padma Gopalan
- Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
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45
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Graphene nanosheet-grafted double-walled carbon nanotube hybrid nanostructures by two-step chemical vapor deposition and their application for ethanol detection. Sci Rep 2019; 9:7871. [PMID: 31133669 PMCID: PMC6536556 DOI: 10.1038/s41598-019-44315-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 05/08/2019] [Indexed: 12/01/2022] Open
Abstract
Here, we present a facile technique for synthesis of graphene nanosheet (GNS)-grafted double-walled carbon nanotube (DWCNT) hybrid carbon nanostructures (here after referred to as G-DWCNTs) by directly growing GNSs along the sidewalls of DWCNTs using a two-step chemical vapor deposition (CVD). DWCNTs were synthesized by floating catalyst CVD at 1300 °C using ferrocene and thiophene dissolved in ethanol. Then, GNSs were grafted onto the synthesized DWCNT bundles by thermal CVD at 1300 °C using ethanol. The sharp-edged petal-like structure of GNSs were grown along the sidewalls of DWCNT bundles while maintaining the one-dimensional structure of DWCNT. Next, DWCNTs and G-DWCNTs were dispersed in ethanol, then deposited on the paper using vacuum filtration method and used for ethanol detection. G-DWCNTs sensor exhibited a 3-fold improvement in the response to ethanol vapor compared to the DWCNTs sensor. The sensing mechanism of DWCNTs and G-DWCNTs can be described in terms of charge transfer between the gas molecules and sensing material. These results demonstrate that the facile technique by two-step CVD method provides a promising approach for simple and low-cost technique to synthesize the hybrid nanostructure of GNSs and DWCNTs. The new hybrid carbon nanostructures are attractive for gas sensing application.
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Fantuzzi F, Oliveira RR, Henkes AV, Rubayo-Soneira J, Nascimento MAC. Mechanistic Insights into the Formation of Lithium Fluoride Nanotubes. Chemistry 2019; 25:5269-5279. [PMID: 30868682 DOI: 10.1002/chem.201805991] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/14/2019] [Indexed: 12/07/2022]
Abstract
Born-Oppenheimer molecular dynamics (BOMD) and periodic density functional theory (DFT) calculations have been applied for describing the mechanism of formation of lithium fluoride (LiF) nanotubes with cubic, hexagonal, octagonal, decagonal, dodecagonal, and tetradecagonal cross-sections. It has been shown that high energy structures, such as nanowires, nanorings, nanosheets, and nanopolyhedra are transient species for the formation of stable nanotubes. Unprecedented (LiF)n clusters (n≤12) were also identified, some of them lying less than 10 kcal mol-[1] above their respective global minima. Such findings indicate that stochastic synthetic techniques, such as laser ablation and chemical vapor deposition, should be combined with a template-driven procedure in order to generate the nanotubes with adequate efficiency. Apart from the stepwise growth of LiF units, the formation of nanotubes was also studied by rolling up a planar square sheet monolayer, which could be hypothetically produced from the exfoliation of the FCC crystal structure. It was shown that both pathways could lead to the formation of alkali halide nanotubes, a still unprecedented set of one-dimensional materials.
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Affiliation(s)
- Felipe Fantuzzi
- Instituto de Química, Universidade Federal do Rio de Janeiro (UFRJ), Av. Athos da Silveira Ramos 149, 21941-909, Rio de Janeiro, Brazil.,Current Address: Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Ricardo R Oliveira
- Instituto de Química, Universidade Federal do Rio de Janeiro (UFRJ), Av. Athos da Silveira Ramos 149, 21941-909, Rio de Janeiro, Brazil
| | - Aline V Henkes
- Instituto de Química, Universidade Federal do Rio de Janeiro (UFRJ), Av. Athos da Silveira Ramos 149, 21941-909, Rio de Janeiro, Brazil
| | - Jesús Rubayo-Soneira
- Instituto Superior de Tecnologías y Ciencias Aplicadas (InSTEC), Universidad de La Habana, Ave. Salvador Allende No. 1110, Quinta de los Molinos, 10400, La Habana, Cuba
| | - Marco Antonio Chaer Nascimento
- Instituto de Química, Universidade Federal do Rio de Janeiro (UFRJ), Av. Athos da Silveira Ramos 149, 21941-909, Rio de Janeiro, Brazil
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Kumar U, Yadav B. Synthesis of carbon nanotubes by direct liquid injection chemical vapor deposition method and its relevance for developing an ultra-sensitive room temperature based CO2 sensor. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.01.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Cao L, Sinha TK, Zhang X, Zhai X, Wang C, Zong C, Kim JK. Graphene/carbon nanotubes-supported Ziegler-Natta catalysts for in situ synthesis of mechanically strong, thermally and electrically conductive trans-polyisoprene nanocomposite. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-018-1688-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Nahle S, Safar R, Grandemange S, Foliguet B, Lovera-Leroux M, Doumandji Z, Le Faou A, Joubert O, Rihn B, Ferrari L. Single wall and multiwall carbon nanotubes induce different toxicological responses in rat alveolar macrophages. J Appl Toxicol 2019; 39:764-772. [PMID: 30605223 PMCID: PMC6590492 DOI: 10.1002/jat.3765] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/19/2018] [Accepted: 11/19/2018] [Indexed: 01/01/2023]
Abstract
Human exposure to airborne carbon nanotubes (CNT) is increasing because of their applications in different sectors; therefore, they constitute a biological hazard. Consequently, developing studies on CNT toxicity become a necessity. CNTs can have different properties in term of length, size and charge. Here, we compared the cellular effect of multiwall (MWCNTs) and single wall CNTs (SWCNTs). MWCNTs consist of multiple layers of graphene, while SWCNTs are monolayers. The effects of MWCNTs and SWCNTs were evaluated by the water-soluble tetrazolium salt cell proliferation assay on NR8383 cells, rat alveolar macrophage cell line (NR8383). After 24 hours of exposure, MWCNTs showed higher toxicity (50% inhibitory concentration [IC50 ] = 3.2 cm2 /cm2 ) than SWCNTs (IC50 = 44 cm2 /cm2 ). Only SWCNTs have induced NR8383 cells apoptosis as assayed by flow cytometry using the annexin V/IP staining test. The expression of genes involved in oxidative burst (Ncf1), inflammation (Nfκb, Tnf-α, Il-6 and Il-1β), mitochondrial damage (Opa) and apoptotic balance (Pdcd4, Bcl-2 and Casp-8) was determined. We found that MWCNT exposure predominantly induce inflammation, while SWCNTs induce apoptosis and impaired mitochondrial function. Our results clearly suggest that MWCNTs are ideal candidates for acute inflammation induction. In vivo studies are required to confirm this hypothesis. However, we conclude that toxicity of CNTs is dependent on their physical and chemical characteristics.
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Affiliation(s)
- Sara Nahle
- Toxicology and Molecular Biology, Institute Jean Lamour UMR 7198 du CNRS, Université de Lorraine, F-54000, Nancy, France
| | - Ramia Safar
- Toxicology and Molecular Biology, Institute Jean Lamour UMR 7198 du CNRS, Université de Lorraine, F-54000, Nancy, France
| | - Stéphanie Grandemange
- Toxicology and Molecular Biology, Institute Jean Lamour UMR 7198 du CNRS, Université de Lorraine, F-54000, Nancy, France
| | - Bernard Foliguet
- Toxicology and Molecular Biology, Institute Jean Lamour UMR 7198 du CNRS, Université de Lorraine, F-54000, Nancy, France
| | - Mélanie Lovera-Leroux
- Toxicology and Molecular Biology, Institute Jean Lamour UMR 7198 du CNRS, Université de Lorraine, F-54000, Nancy, France
| | - Zahra Doumandji
- Toxicology and Molecular Biology, Institute Jean Lamour UMR 7198 du CNRS, Université de Lorraine, F-54000, Nancy, France
| | - Alain Le Faou
- Toxicology and Molecular Biology, Institute Jean Lamour UMR 7198 du CNRS, Université de Lorraine, F-54000, Nancy, France
| | - Olivier Joubert
- Toxicology and Molecular Biology, Institute Jean Lamour UMR 7198 du CNRS, Université de Lorraine, F-54000, Nancy, France
| | - Bertrand Rihn
- Toxicology and Molecular Biology, Institute Jean Lamour UMR 7198 du CNRS, Université de Lorraine, F-54000, Nancy, France
| | - Luc Ferrari
- Toxicology and Molecular Biology, Institute Jean Lamour UMR 7198 du CNRS, Université de Lorraine, F-54000, Nancy, France
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Background: Carbon Nanotubes for Targeted Drug Delivery. CARBON NANOTUBES FOR TARGETED DRUG DELIVERY 2019. [DOI: 10.1007/978-981-15-0910-0_1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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