Journal ArticleDOI
Band gap fluorescence from individual single-walled carbon nanotubes.
Michael J. O'Connell,Sergei M. Bachilo,Chad B. Huffman,Valerie C. Moore,Michael S. Strano,Erik H. Haroz,Kristy L. Rialon,Peter J. Boul,William H. Noon,Carter Kittrell,Jianpeng Ma,Jianpeng Ma,Robert H. Hauge,R. Bruce Weisman,Richard E. Smalley +14 more
TLDR
At pH less than 5, the absorption and emission spectra of individual nanotubes show evidence of band gap–selective protonation of the side walls of the tube, which is readily reversed by treatment with base or ultraviolet light.Abstract:
Fluorescence has been observed directly across the band gap of semiconducting carbon nanotubes. We obtained individual nanotubes, each encased in a cylindrical micelle, by ultrasonically agitating an aqueous dispersion of raw single-walled carbon nanotubes in sodium dodecyl sulfate and then centrifuging to remove tube bundles, ropes, and residual catalyst. Aggregation of nanotubes into bundles otherwise quenches the fluorescence through interactions with metallic tubes and substantially broadens the absorption spectra. At pH less than 5, the absorption and emission spectra of individual nanotubes show evidence of band gap-selective protonation of the side walls of the tube. This protonation is readily reversed by treatment with base or ultraviolet light.read more
Citations
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Velocity Effects on Fullerene and Oxide Nanoparticle Deposition in Porous Media
Hélène Lecoanet,Mark R. Wiesner +1 more
TL;DR: The removal of fullerene-based nanoparticles was observed to converge to a level that was independent of flow velocity, suggesting that under these conditions time scales for attachment or reorganization on the surface are greater than the time scale for transport to collector surfaces.
Journal ArticleDOI
Effect of SOCl2 treatment on electrical and mechanical properties of single-wall carbon nanotube networks.
Urszula Dettlaff-Weglikowska,Viera Skakalova,Ralf Graupner,Sung Ho Jhang,Byung Hoon Kim,Hyun Jung Lee,Lothar Ley,Yung Woo Park,Savas Berber,David Tománek,Siegmar Roth +10 more
TL;DR: The SOCl2-induced conductivity increase by p-type doping of the pristine material is interpreted as a Fermi level shift into the valence band, and is consistent with the temperature dependence of the thermopower.
Journal ArticleDOI
In vivo biomodification of lipid-coated carbon nanotubes by Daphnia magna.
Aaron P. Roberts,Andrew S. Mount,Brandon C. Seda,Justin Souther,Rui Qiao,Sijie Lin,Pu Chun Ke,and Apparao M. Rao,Stephen J. Klaine +8 more
TL;DR: This study examined the interactions between Daphnia magna and a water-soluble, lysophophatidylcholine coated single-walled carbon nanotube to provide evidence of biomodification of a carbon-based nanomaterial by an aquatic organism.
Production and processing of graphene and related materials
Claudia Backes,Claudia Backes,Amr M. Abdelkader,Concepción Alonso,Amandine Andrieux-Ledier,Raul Arenal,Raul Arenal,Jon Azpeitia,Nilanthy Balakrishnan,Luca Banszerus,Julien Barjon,Ruben Bartali,Sebastiano Bellani,Claire Berger,Claire Berger,Reinhard Berger,M.M. Bernal Ortega,Carlo Bernard,Peter H. Beton,André Beyer,Alberto Bianco,Peter Bøggild,Francesco Bonaccorso,Gabriela Borin Barin,Cristina Botas,Rebeca A. Bueno,Daniel Carriazo,Andres Castellanos-Gomez,Meganne Christian,Artur Ciesielski,Tymoteusz Ciuk,Matthew T. Cole,Jonathan N. Coleman,Camilla Coletti,Luigi Crema,Huanyao Cun,Daniela Dasler,Domenico De Fazio,Noel Díez,Simon Drieschner,Georg S. Duesberg,Roman Fasel,Roman Fasel,Xinliang Feng,Alberto Fina,Stiven Forti,Costas Galiotis,Costas Galiotis,Giovanni Garberoglio,Jorge M. Garcia,Jose A. Garrido,Marco Gibertini,Armin Gölzhäuser,Julio Gómez,Thomas Greber,Frank Hauke,Adrian Hemmi,Irene Hernández-Rodríguez,Andreas Hirsch,Stephen A. Hodge,Yves Huttel,Peter Uhd Jepsen,I. Jimenez,Ute Kaiser,Tommi Kaplas,HoKwon Kim,Andras Kis,Konstantinos Papagelis,Konstantinos Papagelis,Kostas Kostarelos,Aleksandra Krajewska,Kangho Lee,Changfeng Li,Harri Lipsanen,Andrea Liscio,Martin R. Lohe,Annick Loiseau,Lucia Lombardi,María Francisca López,Oliver Martin,Cristina Martín,Lidia Martínez,José A. Martín-Gago,José I. Martínez,Nicola Marzari,Alvaro Mayoral,Alvaro Mayoral,John B. McManus,Manuela Melucci,Javier Méndez,Cesar Merino,Pablo Merino,Andreas Meyer,Elisa Miniussi,Vaidotas Miseikis,Neeraj Mishra,Vittorio Morandi,Carmen Munuera,Roberto Muñoz,Hugo Nolan,Luca Ortolani,A. K. Ott,A. K. Ott,Irene Palacio,Vincenzo Palermo,John Parthenios,Iwona Pasternak,Amalia Patanè,Maurizio Prato,Maurizio Prato,Henri Prevost,Vladimir Prudkovskiy,Nicola M. Pugno,Nicola M. Pugno,Nicola M. Pugno,Teófilo Rojo,Antonio Rossi,Pascal Ruffieux,Paolo Samorì,Léonard Schué,Eki J. Setijadi,Thomas Seyller,Giorgio Speranza,Christoph Stampfer,I. Stenger,Wlodek Strupinski,Yuri Svirko,Simone Taioli,Simone Taioli,Kenneth B. K. Teo,Matteo Testi,Flavia Tomarchio,Mauro Tortello,Emanuele Treossi,Andrey Turchanin,Ester Vázquez,Elvira Villaro,Patrick Rebsdorf Whelan,Zhenyuan Xia,Rositza Yakimova,Sheng Yang,G. Reza Yazdi,Chanyoung Yim,Duhee Yoon,Xianghui Zhang,Xiaodong Zhuang,Luigi Colombo,Andrea C. Ferrari,Mar García-Hernández +148 more
TL;DR: In this article, the authors present an overview of the main techniques for production and processing of graphene and related materials (GRMs), as well as the key characterization procedures, adopting a 'hands-on' approach, providing practical details and procedures as derived from literature and from the authors' experience, in order to enable the reader to reproduce the results.
Journal ArticleDOI
Functionalized carbon nanotubes for potential medicinal applications
TL;DR: After functionalization, carbon nanotubes display potentials for a variety of medicinal applications, including the diagnosis and treatment of cancer, infectious diseases and central nervous system disorders, and applications in tissue engineering.
References
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Journal ArticleDOI
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Bernard R. Brooks,Robert E. Bruccoleri,Barry D. Olafson,David J. States,S. Swaminathan,Martin Karplus +5 more
TL;DR: The CHARMM (Chemistry at Harvard Macromolecular Mechanics) as discussed by the authors is a computer program that uses empirical energy functions to model macromolescular systems, and it can read or model build structures, energy minimize them by first- or second-derivative techniques, perform a normal mode or molecular dynamics simulation, and analyze the structural, equilibrium, and dynamic properties determined in these calculations.
Journal ArticleDOI
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Journal ArticleDOI
Crystalline Ropes of Metallic Carbon Nanotubes
Andreas Thess,R. S. Lee,Pavel Nikolaev,Hongjie Dai,Pierre Petit,J. Robert,Chunhui Xu,Young Hee Lee,Seong-Gon Kim,Andrew G. Rinzler,Daniel T. Colbert,Gustavo E. Scuseria,David Tománek,John E. Fischer,Richard E. Smalley +14 more
TL;DR: X-ray diffraction and electron microscopy showed that fullerene single-wall nanotubes (SWNTs) are nearly uniform in diameter and that they self-organize into “ropes,” which consist of 100 to 500 SWNTs in a two-dimensional triangular lattice with a lattice constant of 17 angstroms.
Book
Science of fullerenes and carbon nanotubes
TL;DR: In this paper, the authors present a detailed overview of the properties of Fullerenes and their properties in surface science applications, such as scanning tunnel microscopy, growth and fragmentation studies, and chemical synthesis.
Journal ArticleDOI
Constant pressure molecular dynamics simulation: The Langevin piston method
TL;DR: In this paper, a new method for performing molecular dynamics simulations under constant pressure is presented, which is based on the extended system formalism introduced by Andersen, the deterministic equations of motion for the piston degree of freedom are replaced by a Langevin equation; a suitable choice of collision frequency then eliminates the unphysical "ringing" of the volume associated with the piston mass.