نتایج جستجو برای: functionalization multi

تعداد نتایج: 474380  

2017
Antonio Setaro Mohsen Adeli Mareen Glaeske Daniel Przyrembel Timo Bisswanger Georgy Gordeev Federica Maschietto Abbas Faghani Beate Paulus Martin Weinelt Raul Arenal Rainer Haag Stephanie Reich

Covalent functionalization tailors carbon nanotubes for a wide range of applications in varying environments. Its strength and stability of attachment come at the price of degrading the carbon nanotubes sp2 network and destroying the tubes electronic and optoelectronic features. Here we present a non-destructive, covalent, gram-scale functionalization of single-walled carbon nanotubes by a new ...

2014
Brînduşa BĂLĂNUCĂ Raluca STAN Anamaria HANGANU Horia IOVU Brînduşa Bălănucă Raluca Stan Anamaria Hanganu Horia Iovu

This paper presents the study of the functionalization reactions of the linseed oil (LO) structure. The main purpose of this study was to obtain oil-based monomers that meet both "green chemistry" properties and reactive sites for the polymerization and also to possess a hydrophilic character. Functionalization of LO chains was achieved by a three step reaction involving sequentially: double bo...

Journal: :Nano letters 2006
Kwan Skinner Chris Dwyer Sean Washburn

We report the selective functionalization of uniform and heterostructured nanowires with self-assembled monolayers (SAMs) of (3-mercaptopropyl)trimethoxysilane (MPTMS). The wires were grown electrochemically in anodic aluminum oxide (AAO) templates. Selective deposition and removal of SAMs during nanowire growth permits the decoration of specific regions of the surface along the length of the n...

2012
Vanesa Sanz Helen M. Coley P. Silva Johnjoe McFadden

An in deep study of the functionalization of carbon nanotubes for their application as peptides and DNA carriers is presented. Designed amphiphilic polypeptides are used to study the dispersion properties of single-walled carbon nanotubes (SWCNTs) and to measure the properties of the carbon nanotube-polypeptide complexes. These properties allow the design of methods for using carbon nanotubes a...

2015
Katharina Overlack Ivana Primorac Mathijs Vleugel Veronica Krenn Stefano Maffini Ingrid Hoffmann Geert J P L Kops Andrea Musacchio

The spindle assembly checkpoint (SAC) monitors and promotes kinetochore-microtubule attachment during mitosis. Bub1 and BubR1, SAC components, originated from duplication of an ancestor gene. Subsequent sub-functionalization established subordination: Bub1, recruited first to kinetochores, promotes successive BubR1 recruitment. Because both Bub1 and BubR1 hetero-dimerize with Bub3, a targeting ...

Journal: :Nano letters 2008
Zhigang Wu Jeffrey C Grossman

We employ a combination of ab initio total energy calculations and classical molecular dynamics (MD) simulations to investigate the possible self-assembly of nanoscale objects into ultrahigh aspect ratio chains and wires. The ab initio calculations provide key information regarding selective chemical functionalization for end-to-end attraction and the subtle interplay of the energy landscape, w...

2017
Wei Shu Adriana Lorente Enrique Gómez-Bengoa Cristina Nevado

The quest for selective C-H functionalization reactions, able to provide new strategic opportunities for the rapid assembly of molecular complexity, represents a major focus of the chemical community. Examples of non-directed, remote Csp3-H activation to forge complex carbon frameworks remain scarce due to the kinetic stability and thus intrinsic challenge associated to the chemo-, regio- and s...

Journal: :Nanotechnology 2007
Liangming Wei Yafei Zhang

Covalent sidewall functionalization of single-walled carbon nanotubes (SWNTs) via photoreduction of aromatic ketones by alcohols is reported for the first time. Irradiation of benzophenone, benzhydrol and SWNTs in benzene resulted in covalent attachment of benzhydrol to the sidewalls of the SWNTs. A variety of tools were used to characterize the functionalized SWNTs. Raman scattering, UV-visibl...

2017
Rebeca A. Bueno José I. Martínez Roberto F. Luccas Nerea Ruiz del Árbol Carmen Munuera Irene Palacio Francisco J. Palomares Koen Lauwaet Sangeeta Thakur Jacek M. Baranowski Wlodek Strupinski María F. López Federico Mompean Mar García-Hernández José A. Martín-Gago

Graphene functionalization with organics is expected to be an important step for the development of graphene-based materials with tailored electronic properties. However, its high chemical inertness makes difficult a controlled and selective covalent functionalization, and most of the works performed up to the date report electrostatic molecular adsorption or unruly functionalization. We show h...

2010
T. C. Clancy V. Frankland J. A. Hinkley T. S. Gates

Molecular dynamics simulation was used to estimate the interfacial thermal (Kapitza) resistance between nanoparticles and amorphous and crystalline polymer matrices. Bulk thermal conductivities of the nanocomposites were then estimated using an established effective medium approach. To study functionalization, oligomeric ethylene-vinyl alcohol copolymers were chemically bonded to a single wall ...

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