Relevant bibliographies by topics / Nanotube Fullerene

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Academic literature on the topic 'Nanotube Fullerene'

Author: Grafiati
Published: 4 June 2025
Last updated: 23 June 2025

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Journal articles on the topic "Nanotube Fullerene"

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Morozova, E. V., and D. A. Timkaeva. "Effect of encapsulation of fullerene in semiconducting zigzagcarbon nanotubes on optical and thermoelectric properties." Journal of Physics: Conference Series 2086, no. 1 (2021): 012196. http://dx.doi.org/10.1088/1742-6596/2086/1/012196.

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Abstract We study the optical and thermoelectric properties of carbon nanotubes (CNTs) with encapsulated C60 fullerene molecules. Using ab-initio methods, we calculate optical and thermoelectric paramters for CNT with fullerenes periodically located inside the nanotube at different distances from each other. Dependencies of these parameters on fullerene concentration and diameter of CNT are analyzed.
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Farmanzade, Davood, and Leila Tabari. "Characterization of the fullerene end-functionalized ZnO nanotube: A computational study." Journal of Theoretical and Computational Chemistry 15, no. 04 (2016): 1650031. http://dx.doi.org/10.1142/s0219633616500310.

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The electronic and field emission properties of the fullerene end-functionalized zinc oxide nanotube (ZnONT) are investigated by density functional theory (DFT) to search for novel field emitter nano material. The interaction energies of ZnONT/fullerenes complexes gradually increase, with increasing the nanotube lengths which indicate that ZnONTs with higher lengths could improve the stability of the complexes. The band gaps of connected construction of fullerene molecules with ZnONTs gradually reduced by increasing the tube length, but were not sensitive to the tubes diameter. It is found that the ionization potentials of ZnONT/fullerenes complexes mainly decrease compared to that of pristine nanotube in the presence of 0, 0.002, 0.004[Formula: see text]a.u. electric field. The reduction of the ionization potential means the enhancement of the field emission properties of ZnONT/fullerenes complexes compared with simple ZnONT and fullerene molecules. The calculations show that the combination of ZnONT with fullerene molecules indeed improves the field emission by controlling the tube size and electric field strength.
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Cox, Barry J., Ngamta Thamwattana, and James M. Hill. "Mechanics of atoms and fullerenes in single-walled carbon nanotubes. I. Acceptance and suction energies." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 463, no. 2078 (2006): 461–77. http://dx.doi.org/10.1098/rspa.2006.1771.

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Owing to their unusual properties, carbon nanostructures such as nanotubes and fullerenes have caused many new nanomechanical devices to be proposed. One such application is that of nanoscale oscillators which operate in the gigahertz range, the so-called gigahertz oscillators. Such devices have potential applications as ultrafast optical filters and nano-antennae. While there are difficulties in producing micromechanical oscillators which operate in the gigahertz range, molecular dynamical simulations indicate that nanoscale devices constructed of multi-walled carbon nanotubes or single-walled carbon nanotubes and C 60 fullerenes could feasibly operate at these high frequencies. This paper investigates the suction force experienced by either an atom or a C 60 fullerene molecule located in the vicinity of an open end of a single-walled carbon nanotube. The atom is modelled as a point mass, the fullerene as an averaged atomic mass distributed over the surface of a sphere. In both cases, the carbon nanotube is modelled as an averaged atomic mass distributed over the surface of an open semi-infinite cylinder. In both cases, the particle being introduced is assumed to be located on the axis of the cylinder. Using the Lennard-Jones potential, the van der Waals interaction force between the atom or C 60 fullerene and the carbon nanotube can be obtained analytically. Furthermore, by integrating the force, an explicit analytic expression for the work done by van der Waals forces is determined and used to derive an acceptance condition, that is whether the particle will be completely sucked into the carbon nanotube by virtue of van der Waals interactions alone, and a suction energy which is imparted to the introduced particle in the form of an increased velocity. The results of the acceptance condition and the calculated suction energy are shown to be in good agreement with the published molecular dynamical simulations. In part II of the paper, a new model is proposed to describe the oscillatory motion adopted by atoms and fullerenes that are sucked into carbon nanotubes.
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Cruz-Silva, Rodolfo, Takumi Araki, Takuya Hayashi, Humberto Terrones, Mauricio Terrones, and Morinobu Endo. "Fullerene and nanotube growth: new insights using first principles and molecular dynamics." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 374, no. 2076 (2016): 20150327. http://dx.doi.org/10.1098/rsta.2015.0327.

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Shortly after the discovery of fullerenes, many researchers pointed out that carbon nanotubes could be considered as elongated fullerenes. However, the detailed formation mechanism for both structures has been a topic of debate for several years, and consequently it has been difficult to draw a clear connection between the two systems. While the synthesis conditions appear to be different for both fullerenes and nanotubes, here, we demonstrate that it is highly likely that, at an initial growth stage, single-walled carbon nanotubes begin to grow from a hemisphere-like fullerene cap. More importantly, by analysing the minimum-energy path, it is shown that the insertion of C 2 fragments drives the transformation of this fullerene cap into an elongated structure that leads to the formation of very short carbon nanotubes. This article is part of the themed issue ‘Fullerenes: past, present and future, celebrating the 30th anniversary of Buckminster Fullerene’.
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De Sousa, J. M., C. F. Woellner, L. D. Machado, P. A. S. Autreto, and D. S. Galvao. "Carbon Nanotube Peapods Under High-Strain Rate Conditions: A Molecular Dynamics Investigation." MRS Advances 5, no. 33-34 (2020): 1723–30. http://dx.doi.org/10.1557/adv.2020.139.

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ABSTRACTNew forms of carbon-based materials have received great attention, and the developed materials have found many applications in nanotechnology. Interesting novel carbon structures include the carbon peapods, which are comprised of fullerenes encapsulated within carbon nanotubes. Peapod-like nanostructures have been successfully synthesized, and have been used in optical modulation devices, transistors, solar cells, and in other devices. However, the mechanical properties of these structures are not completely elucidated. In this work, we investigated, using fully atomistic molecular dynamics simulations, the deformation of carbon peapods under high-strain rate conditions, which are achieved by shooting the peapods at ultrasonic velocities against a rigid substrate. Our results show that carbon peapods experience large deformation at impact, and undergo multiple fracture pathways, depending primarily on the relative orientation between the peapod and the substrate, and the impact velocity. Observed outcomes include fullerene ejection, carbon nanotube fracture, fullerene, and nanotube coalescence, as well as the formation of amorphous carbon structures.
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Levitsky, Semyon G., Vladislav V. Shunaev, and Olga E. Glukhova. "A Hybrid Nanocomposite Based on the T-Shaped Carbon Nanotubes and Fullerenes as a Prospect Material for Triple-Value Memory Cells." Materials 15, no. 22 (2022): 8175. http://dx.doi.org/10.3390/ma15228175.

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Relying on empirical and quantum chemical methods, a hybrid nanocomposite based on the T-shaped carbon nanotube (CNT) junction and internal fullerene C60 is proposed as a potential triple-value memory cell. The T-shaped CNT provides three potential wells where the internal fullerene can be located. The fullerene can move between these wells under the periodic external electric field, whose strength and frequency parameters are identified. The process of the fullerene’s motion control corresponds to the memory cell write operation. The read operation can be realized by determining the fullerene’s position inside the CNT by estimation of the charge transfer between a fullerene and the CNT’s walls. Calculations took into account such external factors as temperature and air environment.
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Cox, Barry J., Ngamta Thamwattana, and James M. Hill. "Mechanics of atoms and fullerenes in single-walled carbon nanotubes. II. Oscillatory behaviour." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 463, no. 2078 (2006): 477–94. http://dx.doi.org/10.1098/rspa.2006.1772.

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The discovery of carbon nanotubes and C 60 fullerenes has created an enormous impact on possible new nanomechanical devices. Owing to their unique mechanical and electronic properties, such as low weight, high strength, flexibility and thermal stability, carbon nanotubes and C 60 fullerenes are of considerable interest to researchers from many scientific areas. One aspect that has attracted much attention is the creation of high-frequency nanoscale oscillators, or the so-called gigahertz oscillators, for applications such as ultrafast optical filters and nano-antennae. While there are difficulties for micromechanical oscillators, or resonators, to reach a frequency in the gigahertz range, it is possible for nanomechanical systems to achieve this. This study focuses on C 60 –single-walled carbon nanotube oscillators, which generate high frequencies owing to the oscillatory motion of the C 60 molecule inside the single-walled carbon nanotube. Using the Lennard-Jones potential, the interaction energy of an offset C 60 molecule inside a carbon nanotube is determined, so as to predict its position with reference to the cross-section of the carbon nanotube. By considering the interaction force between the C 60 fullerene and the carbon nanotube, this paper provides a simple mathematical model, involving two Dirac delta functions, which can be used to capture the essential mechanisms underlying such gigahertz oscillators. As a preliminary to the calculation, the oscillatory behaviour of an isolated atom is examined. The new element of this study is the use of elementary mechanics and applied mathematical modelling in a scientific context previously dominated by molecular dynamical simulation.
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Kovalchuk, O. V., I. P. Studenyak, T. M. Kovalchuk, et al. "Dielectric properties of Shell oil transformer oil with impurities of carbon nanotubes and fullerene C60." Semiconductor Physics, Quantum Electronics and Optoelectronics 24, no. 04 (2021): 413–18. http://dx.doi.org/10.15407/spqeo24.04.413.

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At the temperature 293 K, the influence of two types of nanoimpurities (carbon multiwall nanotubes and C60 fullerene) both separately and together on the dielectric properties of Shell oil transformer oil has been studied. It has been shown that these impurities do not significantly effect on the value of the dielectric permittivity of Shell oil, but more significantly increase its conductivity. It has been found that in the presence of nanotubes inside Shell oil, the dependence of its electrical conductivity on the fullerene concentration is nonmonotonic. The samples with the fullerene concentration 100 ppm have the highest conductivity. At the fullerene concentration 300 ppm, the conductivity of Shell oil with the impurities of carbon nanotube and C60 fullerene becomes almost equal to the electrical conductivity of Shell oil only with the impurities of carbon nanotubes. It has been suggested that C60 fullerene can be used to reduce the electrical conductivity of Shell oil with magnetic nanoparticles required to increase the cooling efficiency of transformers under the action of their own magnetic field.
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SLANINA, ZDENĚK, FILIP UHLÍK, LESZEK STOBINSKI, HONG-MING LIN, and LUDWIK ADAMOWICZ. "COMPUTING NARROW NANOTUBES AND THEIR DERIVATIVES." International Journal of Nanoscience 01, no. 03n04 (2002): 303–12. http://dx.doi.org/10.1142/s0219581x0200019x.

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Very recently, narrow nanotubes have been observed with diameters of 5 or even 4 Å. In this report we survey calculations that have so far been performed on narrow model nanotubes, namely capped by fragments of D2d and D6h C 36 fullerene cages or by fragments of C 32 and C 16quasi-fullerene cages with two four-membered rings, or finally by a fragment of dodecahedral C 20. The computations can reproduce the observed diameters of the narrow nanotubes. The results also indicate that fragments of C 32, used as caps instead of C 36, can lead to quite competitive energetics. Thus, a novel possibility that some of the narrow nanotubes can contain four-membered rings at their tips seems plausible. The present paper also surveys computational study of oxygen additions to the narrow nanotubes, i.e., a problem frequently studied with fullerenes. Both thermodynamic enthalpy changes and kinetic activation barriers for oxygen addition to selected bonds are computed and analyzed. The lowest isomer (thermodynamically the most stable) is never of the 6/6 type, i.e., the thermodynamically most convenient structures are produced by oxygen additions to the nanotube tips. The computations show that narrow nanotubes should be relatively prone to additions of oxygen.
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Kuzmany, Hans, Rudolf Pfeiffer, Martin Hulman, and Christian Kramberger. "Raman spectroscopy of fullerenes and fullerene–nanotube composites." Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences 362, no. 1824 (2004): 2375–406. http://dx.doi.org/10.1098/rsta.2004.1446.

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Dissertations / Theses on the topic "Nanotube Fullerene"

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Miyazawa, K. "Synthesis of Fullerene Nanowhiskers and Their Electrical and Superconducting Properties." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42501.

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Fullerene nanowhiskers (FNWs) are thin crystalline fibers composed of fullerene molecules such as C60, C70, endohedral fullerenes or other fullerene molecules with functional groups. FNWs are n-type semiconductors with various application examples such as field-effect transistors, solar cells, chemical sensors, photocatalysts and so forth. Alkali metal-doped C60 (fullerene) nanowhiskers (C60NWs) become superconductors. The K-doped C60NWs have the highest superconducting volume fraction as ever have been realized in the alkali metal-doped C60 crystals and a very high critical current density Jc up to a magnetic field of 50 kOe. On the other hand, the growth control of fullerene nanowhiskers is a very important theme for their practical application. This paper reviews the research development of FNWs, focusing on their electrical and superconducting properties as well as their growth mechanism.
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Chitta, Raghu. "Studies on self-assembled porphyrin-fullerene and porphyrin-carbon nanotube donor-acceptor conjugates." Diss., Wichita State University, 2007. http://hdl.handle.net/10057/1485.

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The research presented in this dissertation deals with the syntheses, characterization, electrochemical and photophysical studies of porphyrin-fullerene or porphyrin-carbon nanotube based donor-acceptor conjugates. The first chapter provides an introduction to the research presented in this thesis. A summary of primary events that occur in natural photosynthetic systems, the necessity and importance of the artificial photosynthetic mimics for light energy harvesting, the importance of non-covalent porphyrin-fullerene donor-acceptor models over covalent ones and some recent developments in model biomimetic systems are presented. Additionally, the importance of the nano-sized materials, solubilization of carbon nanotubes via chemical functionalization and utilization of these nanomaterials in building donor-acceptor nanohybrids is discussed. The second chapter discusses the syntheses and characterization of the control compounds and physical methods employed to monitor the photochemical pathways occurring in the studied donor-acceptor conjugates. The third chapter focuses on the design and syntheses of rigid, noncovalent “two-point” bound porphyrin-fullerene dyads assembled via crown etherammonium cation complexation and axial coordination or ∏-∏ interactions. The effect of axial ligation or ∏-∏ interactions in addition to the crown etherammonium cation binding, on photochemical charge stabilization in these supramolecuar dyads is systematically investigated. The fourth chapter deals with the photoinduced electron-transfer processes occurring in supramolecular triads comprised of cis and trans functionalized bis-18-crown-6 porphyrin self assembled with fullerene functionalized with pyridine or alkyl ammonium cation entities. The 1:2 stoichiometric supramolecular porphyrin:fullerene conjugates are obtained by utilizing either “two-point” binding methodology involving metalligand coordination and alkyl ammonium cation-crown ether binding or the latter type of binding solely. Variation of metal ion in the porphyrin (zinc or magnesium) cavity results in the free energy changes of charge separation and charge recombination. Employing higher number of the acceptor entities improves the electron-transfer rates, with kCS being 2-3 orders of magnitude higher than the kCR, thus indicating charge stabilization in these conjugates. The fifth chapter discusses the role of a secondary electron donor in generating longlived charge separated states in supramolecular conjugates formed via crown ether-ammonium cation binding. The sixth chapter presents the application of the present type of conjugates. Here, potassium ion-induced switching of intrato intermolecular electron transfer in crown ether appended porphyrin-fullerene donor acceptor conjugates is demonstrated. Investigations in the seventh chapter involve solubilization of single wall carbon nanotubes by ∏-stacking with pyrene functionalized imidazole or phenyl moieties and subsequent utilization of these nanotubes to build supramolecular donor-acceptor nanohybrids with donors such as porphyrin or napthalocyanine The compounds described in this dissertation were synthesized and characterized by proton NMR and ESI-Mass spectroscopy. Binding constants pertaining to the formation of various complexes were obtained by using UV-visible, fluorescence and ¹H NMR spectral data. Density functional theory (DFT) calculations were performed to gain insight into the structural aspects and orientation of the donor-acceptor groups in these supramolecular complexes. Electrochemical studies were performed to obtain free energy changes for charge separation and charge recombination. Steady state and time resolved fluorescence emission studies in addition to transient absorption studies were employed to obtain charge separation and charge recombination rates and lifetimes of photo-induced electron transfer.<br>Thesis (Ph.D.)--Wichita State University, College of Liberal Arts and Sciences, Dept. of Chemistry<br>"December 2007."
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Chitta, Raghu D'Souza Francis. "Studies on self-assembled porphyrin-fullerene and porphyrin-carbon nanotube donor-acceptor conjugates /." Diss., A link to full text of this thesis in SOAR, 2007. http://hdl.handle.net/10057/1485.

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Pavlow, Christopher James. "Progress Toward the First Rational Synthesis of a [5.5] Carbon Nanotube." Thesis, Boston College, 2006. http://hdl.handle.net/2345/421.

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Thesis advisor: Lawrence T. Scott<br>The purpose of this project was to make progress toward a chemical synthesis of a conductive [5,5] single-walled nanotube (SWNT), specifically a C50H10 geodesic cap. The term geodesic cap refers to the smallest fragment of a nanotube that resembles the chirality and structure of a specific nanotube. Beyond synthesizing a specific nanotube, we were also interested in exploring new reactions and compounds to perform indenoannulation reactions. The interest in these compounds, which contain indeno structures, comes from their resemblance to C60 and higher fullerenes, and more specifically the intermediates to our target molecule, the C50H10 geodesic cap<br>Thesis (BS) — Boston College, 2006<br>Submitted to: Boston College. College of Arts and Sciences<br>Discipline: Chemistry<br>Discipline: College Honors Program
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Liu, Yi 1971. "First-principles study of transport properties of molecular devices : fullerene and carbon nanotube systems." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=85571.

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The discovery of fullerenes and carbon nanotubes has been very significant to the field of nanotechnology by providing an abundance of stable, highly symmetric, non-reactive, and relatively large molecules that can, in principle, be manipulated one at a time. At the present stage, a theoretical effort should be carried out in order to find and understand novel phenomena in molecule-based nanostructures which could serve as a basis for fabricating useful molecular devices. In this thesis we investigate from first-principles the transport properties of molecular devices: fullerene and carbon nanotube systems.<br>We begin with charge transport in carbon nanotubes with oxygen, and find that the interaction between oxygen molecules and carbon nanotubes significantly modifies the electronic structure near the Fermi level for both zigzag and armchair tubes. The subtle difference of the adsorption sites of oxygen and the distance between oxygen and nanotubes can cause totally different results of their transport properties.<br>Then we investigate current flow from the point of view of current density distribution in molecular devices, for current density gives local information of nonequilibrium transport, thereby providing useful and vivid insight to transport properties of molecular electronics. It has been found when an intrinsic carbon nanotube is doped with either a boron or a nitrogen atoms through a replacement of a carbon atom, the local physical properties around the impurity atoms (boron or nitrogen) undergo a significant change, resulting in a dramatic change of the local current distribution. It is suggested that there appears a chiral current flow in the B- and N-doped armchair nanotubes near the impurity. As for a gated C 60 molecular device, the current distribution and the total current flow are both obviously affected by the gate voltage, which indicates the importance of the gate voltage in such a molecular device.<br>Finally, we discuss the contact effects on transport properties of the molecular devices. We study the effects of the contact geometry as well as the electrode material and find that different orientations of C 60 connected to Au(111) leads can cause significant changes in the current-voltage (I-V) characteristics of such C60 molecular devices. On the other hand, the electrode material is crucial to obtain low resistance ohmic contacts. Our first-principles calculations of transport suggest that Ti has higher affinity for carbide formation. So the choice of proper electrode materials will play an important role in the design of nanoscale devices.
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Barzegar, HamidReza. "Synthesis and Characterization of Carbon Based One-Dimensional Structures : Tuning Physical and Chemical Properties." Doctoral thesis, Umeå universitet, Institutionen för fysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-97551.

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Carbon nanostructures have been extensively used in different applications; ranging from electronic and optoelectronic devices to energy conversion. The interest stems from the fact that covalently bonded carbon atoms can form a wide variety of structures with zero-, one- and two-dimensional configuration with different physical properties. For instance, while fullerene molecules (zero-dimensional carbon structures) realize semiconductor behavior, two-dimensional graphene shows metallic behavior with exceptional electron mobility. Moreover the possibility to even further tune these fascinating properties by means of doping, chemical modification and combining carbon based sub-classes into new hybrid structures make the carbon nanostructure even more interesting for practical application.  This thesis focuses on synthesizing SWCNT and different C60 one-dimensional structures as well as tuning their properties by means of different chemical and structural modification. The purpose of the study is to have better understanding of the synthesis and modification techniques, which opens for better control over the properties of the product for desired applications. In this thesis carbon nanotubes (CNTs) are grown by chemical vapor deposition (CVD) on iron/cobalt catalyst particles. The effect of catalyst particle size on the diameter of the grown CNTs is systematically studied and in the case of SWCNTs it is shown that the chirality distribution of the grown SWCNTs can be tuned by altering the catalyst particle composition. In further experiments, incorporation of the nitrogen atoms in SWCNTs structures is examined. A correlation between experimental characterization techniques and theoretical calculation enable for precise analysis of different types of nitrogen configuration in SWCNTs structure and in particular their effect on growth termination and electronic properties of SWCNTs are studied. C60 one-dimensional structures are grown through a solution based method known as Liquid-liquid interfacial precipitation (LLIP). By controlling the crystal seed formation at the early stage of the growth the morphology and size of the grown C60 one-dimensional structures where tuned from nanorods to large diameter rods and tubes. We further introduce a facile solution-based method to photo-polymerize the as-grown C60 nanorods, and show that such a method crates a polymeric C60 shell around the nanorods. The polymeric C60 shell exhibits high stability against common hydrophobic C60 solvents, which makes the photo-polymerized nanorods ideal for further solution-based processing. This is practically shown by decoration of both as grown and photo-polymerized nanorods by palladium nanoparticles and comparison between their electrochemical activities. The electrical properties of the C60 nanorods are also examined by utilizing a field effect transistor geometry comprising different C60 nanorods. In the last part of the study a variant of CNT is synthesized in which large diameter, few-walled CNTs spontaneously transform to a collapsed ribbon shape structure, the so called collapsed carbon nanotube (CCNT). By inserting C60 molecules into the duct edges of CCNT a new hybrid structure comprising C60 molecules and CCNT is synthesized and characterized. A further C60 insertion lead to reinflation of CCNTs, which eventually form few-walled CNT completely filled with C60 molecules.
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Koh, Wonsang. "First-principles study of the li adsorption on various carbon hybrid systems." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/44845.

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Recent carbon allotropes such as carbon nanotubes (CNTs), fullerenes (C60s) and graphene have attracted great interests in both science and engineering due to their unique properties such as excellent electrical and mechanical properties as well as its vast surface area, and have led to many commercial applications. Especially, CNTs have been considered to be one of the promising candidates in the Li ion battery system because of its outstanding properties. However, the experimental results in the pristine CNT system have shown just slight improvement than original graphitic carbon material, which has been attributed to the weak adsorption of Li on CNTs. In this study, we investigated two types of CNT-C60 hybrid system consisting of CNTs and C60s to improve Li adsorption capabilities and predict its performance through quantum mechanical (QM) computations. First, we investigated adsorption energy of lithium (Li) on dilute CNT-C60 hybrid and CNT-C60 nanobud system as well as various electronic properties such as band structure, density of states (DOS), molecular orbital and charge distribution. Then, we expanded our interest to the more realistic condensed structure of CNT-C60 hybrid and nanobud system to examine actual electrochemical characteristics. The study of the condensed structure has been expanded to the very unique CNT-C60 nano-network system and examined mechanical strength as well as electronic properties. Finally, Li adsorption on other carbon allotropes system such as graphene-C60 hybrid and graphene-C60 bud system was investigated in order to provide fundamental understanding of electronic interaction between carbon allotrope and effect of Li adsorption.
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Kornienko, N. E., and A. P. Naumenko. "Strong Vibration-Electron Interactions and Vibration Band Enhancement in Vibrational Spectra of C60 Nanofilms and Singlewalled Carbon Nanotubes." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35593.

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In Raman spectra in nanofilms of fullerene C60 with thickness about 150 – 250 nm it was found the en-hancement of vibrational bands Hg (1 ÷ 8) intensity at 2 ÷ 7 times in comparison with the microfilms with thickness 1 – 2 microns. It is shown that the inactive for icosahedral symmetry Ih Raman and IR vibrations Gg, u, Hu, F2g, u, and the lateral spectral components of the bands Hg (1 ÷ 8) increase in 5 – 50 times and more. This is due to an abnormal increasing of the resonant nonlinear interaction of the vibrational modes and the vibrational-electronic interaction, which leads to a change in the electronic states and the appear-ing of new electronic bands (EB) in the region of the vibrations. The change induced by the polymerization of EB in nanofilms C60 and intense laser pulses have been studied. . A nonmonotonic dependence of the EP intensity on the thickness of nanofilms has been established. The lineshape of the overtones 2Ag (2) and 2Hg (7) for fullerene C60 and increasing of overtone 2D in spectra of single-walled carbon nanotubes, as well as unusual changes anharmonisity their 2G and 2D bands varies with the frequency of the laser radi-ation have been studied. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35593
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Almeida, Luiz Carlos Pimentel 1983. "Filmes finos multicamadas de polímeros condutores, nanotubos de carbono e fulerenos modificados para aplicação na conversão de energia solar." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248475.

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Orientadores: Ana Flávia Nogueira, Valtencir Zucolotto<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Química<br>Made available in DSpace on 2018-08-22T02:59:18Z (GMT). No. of bitstreams: 1 Almeida_LuizCarlosPimentel_D.pdf: 6880507 bytes, checksum: f7a2c24853f25411226ae9b66a2de97b (MD5) Previous issue date: 2012<br>Resumo: Neste trabalho foram estudados filmes finos multicamadas baseados em polímeros condutores, nanotubos de carbono e um derivado de fulereno. Esses filmes foram depositados pela técnica de deposição camada por camada (LbL) via interações eletrostáticas. Esse trabalho está dividido em duas partes: 1-) Filmes LbL baseados no polímero conjugado poli(p-fenilenovinileno) (PPV) e nanotubos de carbono de parede única funcionalizados com grupos carboxílicos (SWNTCOOH) foram preparados em arquitetura de bloco, caracterizados e aplicados como fotoeletrodos em células solares fotoeletroquímicas. A morfologia desses filmes foi avaliada por microscopia de força atômica (AFM) e de epifluorescência, as quais indicaram uma variação morfológica significativa dos filmes após adição de camadas de nanotubos de carbono. A transferência de carga fotoinduzida do polímero condutor PPV para o SWNT-COOH foi analisada por supressão de fotoluminescência (PL). A caracterização fotoeletroquímica foi realizada sob irradiação de luz branca e os fotoeletrodos contendo SWNT-COOH apresentaram valores de fotocorrente de até 7,5 mA cm. A fotocorrente aumentou e tornou-se mais estável quando uma camada do polímero poli(3,4-etilenodioxitiofeno) dopado com poli(4-sulfonato de estireno) (PEDOT:PSS) foi depositada entre o eletrodo ITO e o filme LbL. 2-) Foram preparados filmes LbL baseados no polímero conjugado poli[2-(3-tienil)-etoxi-4-butilsulfonato] de sódio (PTEBS) e no derivado de fulereno C60-F. A caracterizacao fotofísica mostrou a ocorrência de transferência fotoinduzida de carga do PTEBS para o C60-F, a qual foi também demonstrada por meio da geração de fotocorrente obtida quando os filmes (PTEBS/C60-F) foram aplicados como fotoeletrodos em células solares fotoeletroquímicas. Os resultados obtidos fazem dos filmes LbL baseados em semicondutores orgânicos candidatos promissores para conversão de energia solar.<br>Abstract: In this work, multilayer thin films based on conducting polymers, carbon nanotubes and fullerene derivatives were studied. These films were fabricated by layer-by-layer deposition technique (LbL) through electrostatic interactions. This work is divided in two parts: 1-) LbL films composed of a conducting polymer poly(p-phenylenevinylene) (PPV) and carboxylic acid functionalized singlewalled carbon nanotubes (SWNT-COOH) were prepared in a block architecture, characterized and applied as electrodes in photoelectrochemical solar cells. Film morphology was evaluated by atomic force and epifluorescence microscopies, showing remarkable changes after incorporation of SWNT-COOH layers. The photoinduced charge transfer from the conducting polymer to SWNT-COOH was analyzed by photoluminescence (PL) quenching. Photoelectrochemical characterization was performed under white light and the films containing SWNTCOOH displayed photocurrent values up to 7.5 mA cm. Photocurrent generation was enhanced and became more stable when an intermediate layer of poly(3,4- ethylenedioxythiophene)¿poly(4-styrenesulfonic acid) (PEDOT:PSS) was interposed between the ITO electrode and LbL films. 2-) LbL films based on the conducting polymer sodium poly[2-(3-thienyl)-ethoxy-4-butylsulfonate] (PTEBS) and fullerene derivative C60-F were fabricated. Photophysical characterization shows the occurrence of photoinduced charge transfer from PTEBS to C60-F, which was also demonstrated by photocurrent generation obtained when (PTEBS/C60-F) multilayer films were applied as electrodes of photoelectrochemical solar cells. All these results make the LbL films based on organic semiconductors promising canditates towards solar energy conversion.<br>Doutorado<br>Físico-Química<br>Doutor em Ciências
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Terrones-Maldonado, Mauricio. "Production and characterisation of novel fullerene-related materials : nanotubes, nanofibres and giant fullerenes." Thesis, University of Sussex, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361404.

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Books on the topic "Nanotube Fullerene"

1

N, Kramer Carl, ed. Fullerene research advances. Nova Science Publishers, 2007.

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Xie, Yibing. Nanotube array supercapacitor. Nova Science Publishers, 2011.

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Ōsawa, Eiji. Perspectives of Fullerene Nanotechnology. Springer Netherlands, 2002.

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Petrukhina, Marina A., and Lawrence T. Scott, eds. Fragments of Fullerenes and Carbon Nanotubes. John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118011263.

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G, Dresselhaus, and Eklund P. C, eds. Science of fullerenes and carbon nanotubes. Academic Press, 1996.

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Martín, Nazario, and Jean-François Nierengarten, eds. Supramolecular Chemistry of Fullerenes and Carbon Nanotubes. Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527650125.

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Marcaccio, Massimo, and Francesco Paolucci, eds. Making and Exploiting Fullerenes, Graphene, and Carbon Nanotubes. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-55083-6.

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International Symposium on Fullerenes, Nanotubes and Carbon Nanoclusters (2001 Washington, D.C.). Fullerenes for the new millennium: Proceedings of the international symposium on fullerenes, nanotubes, and carbon nanoclusters. Edited by Kamat Prashant V, Guldi D. M, Kadish Karl M. 1945-, Electrochemical Society Fullerenes Group, and Electrochemical Society Meeting. Electrochemical Society, 2001.

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International, Symposium on Fullerenes Nanotubes and Carbon Nanoclusters (2003 Paris France). Fullerenes and nanotubes: The building blocks of next generation nanodevices : proceedings of the International Symposium on Fullerenes, Nanotubes, and Carbon Nanoclusters. Electrochemical Society, 2003.

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Borka, D. Channeling of protons through carbon nanotubes. Nova Science Publishers, 2011.

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Book chapters on the topic "Nanotube Fullerene"

1

Loutfy, Raouf O., J. C. Withers, M. Abdelkader, and M. Sennett. "Carbon Nanotube—Polycarbonate Composites." In Perspectives of Fullerene Nanotechnology. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-9598-3_29.

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Uemura, Sashiro. "Carbon Nanotube Field Emission Display." In Perspectives of Fullerene Nanotechnology. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-9598-3_6.

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Yeow, John T. W., and Niraj Sinha. "Carbon Nanotube and Fullerene Sensors." In Sensors Based on Nanostructured Materials. Springer US, 2008. http://dx.doi.org/10.1007/978-0-387-77753-5_2.

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Wilson, Stephen R. "Nanomedicine: Fullerene and Carbon Nanotube Biology." In Perspectives of Fullerene Nanotechnology. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-9598-3_14.

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Obraztsov, Alexander N. "Thin Film Carbon Nanotube Cathodes for Field Emission Flat Panel Display and Light Source Application." In Perspectives of Fullerene Nanotechnology. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-9598-3_7.

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Chandrasekaran, Swetha, Patrick G. Campbell, Theodore F. Baumann, and Marcus A. Worsley. "Nanocarbons: Diamond, Fullerene, Nanotube, Graphite, and Graphene Aerogels." In Springer Handbook of Aerogels. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-030-27322-4_36.

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Jones, Derek R., Praveen Bachawala, and James Mack. "Experimental and Calculated Properties of Fullerene and Nanotube Fragments." In Fragments of Fullerenes and Carbon Nanotubes. John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118011263.ch5.

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Devi, Nitika, Rajesh Kumar, Yong-Song Chen, and Rajesh Kumar Singh. "Carbon-Based Nanomaterials: Carbon Nanotube, Fullerene, and Carbon Dots." In Nanomaterials. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-7963-7_2.

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Scharff, P. "Fundamental Properties and Applications of Fullerene and Carbon Nanotube Systems." In Frontiers of Multifunctional Nanosystems. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0341-4_15.

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Dodziuk, Helena. "Endohedral Fullerene Complexes. Which and How Many Small Molecules Can Be Inserted into Fullerenes and a Carbon Nanotube?" In Springer Proceedings in Physics. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06611-0_1.

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Conference papers on the topic "Nanotube Fullerene"

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Cui, Liu, Yanhui Feng, Xinxin Zhang, and Wei Li. "Molecular Dynamic Simulation of Thermal Conductivity of Carbon Nano-Peapods." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17589.

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The thermal conductivity of carbon nano-peapods, carbon nanotube (10,10) filled with fullerene molecules, is investigated by Equilibrium Molecular Dynamic Simulation based on Green-Kubo’s equation. Carbon nano-peapods structures are built by HyperChem. C-C bonding interactions are determined by the AIREBO potential, and the Lennard-Jones potential is used for expressing nonbonding interactions. The results show that filled fullerenes lead to the increment of thermal conductivity, relative to the bare carbon nanotubes. The thermal conductivity of carbon nano-peapods always increases with the rising filling ratio only if the filling ration is less than 100%. Once the nanotube is fully filled with fullerene molecules, a sudden drop in the thermal conductivity appears due to the restriction of molecules’ axially translational motion. Thermal conductivity of carbon nano-peapods reduces first and then increases with the increasing temperature. In addition, the thermal conductivity increases sharply with the increasing length. The length of thermal conductivity convergence for carbon nano-peapods seems much shorter than for bare carbon nanotubes.
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Glukhova, O. E., I. V. Kirillova, I. N. Saliy, and M. M. Slepchenkov. "Single-fullerene manipulation inside a carbon nanotube." In SPIE BiOS, edited by Tuan Vo-Dinh and Joseph R. Lakowicz. SPIE, 2011. http://dx.doi.org/10.1117/12.878677.

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POKLONSKI, N. A., E. F. KISLYAKOV, O. N. BUBEL', et al. "FULLERENE C20 MOTION IN (8, 8) CARBON NANOTUBE." In Proceedings of the International Conference on Nanomeeting 2009. WORLD SCIENTIFIC, 2009. http://dx.doi.org/10.1142/9789814280365_0027.

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Alley, Olivia, Meng-Yin Wu, Josue F. Martinez Hardigree, Michael S. Arnold, and Howard E. Katz. "Substrate-correlated interface polarity reversal at a carbon nanotube/fullerene junction." In 2015 IEEE 42nd Photovoltaic Specialists Conference (PVSC). IEEE, 2015. http://dx.doi.org/10.1109/pvsc.2015.7355647.

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Sharma, Amrish, Sandeep Kaur, and Isha Mudahar. "Interaction between fullerene halves Cn (n ≤ 40) and single wall carbon nanotube." In INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2015): Proceeding of International Conference on Condensed Matter and Applied Physics. Author(s), 2016. http://dx.doi.org/10.1063/1.4946272.

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Wang, Yun-Che, Qu-Yuan Kuo, Chuan Chen, et al. "Interactions Between a Buckled Carbon Nanotube and Fullerene Via Molecular-dynamics Simulations." In PROCEEDINGS OF THE 2ND INTERNATIONAL SYMPOSIUM ON COMPUTATIONAL MECHANICS AND THE 12TH INTERNATIONAL CONFERENCE ON THE ENHANCEMENT AND PROMOTION OF COMPUTATIONAL METHODS IN ENGINEERING AND SCIENCE. AIP, 2010. http://dx.doi.org/10.1063/1.3452278.

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Shimada, Takashi, Toshiya Okazaki, Yutaka Ohno, et al. "Electronic Transport Properties of C60, C90 and Gd@C82 Fullerene-Carbon Nanotube Peapods." In 2002 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2002. http://dx.doi.org/10.7567/ssdm.2002.f-1-2.

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Marciu, D., C. Figura, S. Wang, et al. "Enhanced Degenerate Four-Wave Mixing in an Endohedral Metallofullerene Through Metal-to-Cage Charge-Transfer." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/otfa.1997.the.15.

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Since the initial discovery and development of a technique for macroscopic preparation of the archetypal and most abundant fullerene C60, a wealth of fullerene-based structures have been produced including higher fullerenes, charge-transfer complexes, fullerene derivatives, superconducting exohedral-doped fullerenes, and carbon nanotubes. One of the most intriguing fullerene classes is the endohedral fullerene in which the spheroidal molecular structure is employed to encapsulate a small number of atoms (one to four) internal to the cage.1,2 Until recently, the difficult separation process of endohedral fullerenes had limited their availability to submilligram levels. Consequently, initial studies of these materials had primarily been restricted to electron paramagnetic resonance (EPR) and linear spectroscopy. EPR measurements demonstrated that, for the case of La@C82, the La atom transfers three electrons to the fullerene cage and resides in the +3 oxidation state.2 Metal-to-cage charge transfer appears to be a common feature of transition metal-containing endohedral metallofullerenes. Meanwhile, nonlinear optical studies of empty-cage C60 and C70 have shown that these materials possess both large third order susceptibilities χ(3)(−ω4;ω1,ω2,ω3)3 (~10-11 esu) and strong optical limiting behavior.4,5 We report here the first nonlinear optical measurements of an endohedral metallofullerene and find a dramatic enhancement in the third order nonlinear optical response. Degenerate four-wave mixing (DFWM) experiments on solutions of the endohedral metallofullerene Er2@C82 show that the metal-to-cage charge transfer provides a mechanism for increasing χ(3)(−ω4;ω1,ω2,ω3) by orders of magnitude relative to empty-cage fullerenes.
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Bergemann, Kevin, and Francois Leonard. "Fullerene-sensitized carbon nanotube array phototransistor with responsivity of 10^8 A/W (Conference Presentation)." In Advanced Photon Counting Techniques XIII, edited by Mark A. Itzler, K. Alex McIntosh, and Joshua C. Bienfang. SPIE, 2019. http://dx.doi.org/10.1117/12.2518052.

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Dovramadjiev, Tihomir. "Computational Parametric Design of Fullerene C60, Graphene and Nanotube, and Realistic Visualization of Carbon Nanostructures by 3D Printing." In 2019 29th Annual Conference of the European Association for Education in Electrical and Information Engineering (EAEEIE). IEEE, 2019. http://dx.doi.org/10.1109/eaeeie46886.2019.9000453.

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Reports on the topic "Nanotube Fullerene"

1

Rinzler, A. G., J. H. Hafner, P. Nilolaev, D. T. Colbert, and R. E. Smalley. Field emission and growth of fullerene nanotubes. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/650265.

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Manaa, M. R. Predicting Real Optimized Materials: Novel Nitrogen-Containing Fullerenes and Nanotubes. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/15007317.

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Resolution of pulmonary inflammation induced by carbon nanotubes and fullerenes in mice: role of macrophage polarization (dataset). U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 2020. http://dx.doi.org/10.26616/nioshrd-1015-2020-0.

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