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Synovial Fluid Lubrication of Artificial Joints: Protein Film Formation and Composition

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00129B, PaperJingyun Fan, Connor Myant, Richard Underwood, Philippa Cann
Despite design improvements wear of artificial implants remains a serious health issue particularly for Metal-on-Metal hips where the formation of metallic wear debris has been linked to adverse tissue response....
The content of this RSS Feed (c) The Royal Society of Chemistry

The mechanics of nanometre-sale molecular contacts

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00133K, PaperKaterina Busuttil, Nikolaos Nikogeorgos, Zhenyu Zhang, Mark Geoghegan, Christopher A Hunter, Graham Leggett
The adhesive interactions and friction-load relationships have been investigated in liquid mixtures. For hydrogen bond-forming monolayers in acetone-heptane mixtures a linear friction-load relationship is observed at compositions that yield extensive...
The content of this RSS Feed (c) The Royal Society of Chemistry

Why can TiAlCrSiYN-based adaptive coatings deliver exceptional performance under extreme frictional conditions?

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00131D, PaperBen Beake
Adaptive TiAlCrSiYN-based coatings show promise under the extreme tribological conditions of dry ultra-high-speed (500-700 m/min) machining of hardened tool steels. During high speed machining, protective sapphire and mullite-like tribo-films form...
The content of this RSS Feed (c) The Royal Society of Chemistry

Imaging the effects of the antisymmetric stretch excitation of CH4 in the reaction with F atom

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD20004J, PaperHiroshi Kawamata, Weiqing Zhang, Kopin Liu
One quantum excitation of methane to CH4(v3=1) was found to prohibit the CH bond rupture, thus slowing down the total reactivity toward F-atom, and when the reaction does occur, only...
The content of this RSS Feed (c) The Royal Society of Chemistry

Semi-Deterministic chemo-mechanical model of boundary lubrication

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00132B, PaperJoel Andersson, Roland Larsson, Andreas Almqvist, Mattias Grahn, Ichiro Minami
A model for tribofilm growth is developed. The model is used in combination with numerical contact mechanics tools to enable evaluation of combined effects of chemistry and contact mechanics. The...
The content of this RSS Feed (c) The Royal Society of Chemistry

Cell Friction

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00130F, PaperThomas Angelini, Alison C Dunn, Juan Manuel Uruena, Daniel John Dickrell, David L Burris, Greg Sawyer
Cells sense and respond to their environment. Mechanotransduction is the process by which mechanical forces, stress, and strains are converted into biochemical signals that control cell behavior. In recent decades...
The content of this RSS Feed (c) The Royal Society of Chemistry

Mechanism of ultra low friction of multilayer graphene studied by coarse-grained molecular simulation

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2011, Accepted Manuscript
DOI: 10.1039/C2FD00119E, PaperHitoshi Washizu, Seiji Kajita, Toshihide Ohmori, Mamoru Tohyama, Noriaki Nishino, Hiroshi Teranishi, Atsushi Suzuki
Coarse-grained Metropolis Monte Carlo Brownian Dynamics simulations are used to clarify the ultralow friction mechanism of a transfer film of multilayered graphene sheets. Each circular graphene sheet consists of 400...
The content of this RSS Feed (c) The Royal Society of Chemistry

On the three-term kinetic friction law in nanotribological systems

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00120A, PaperAndras Vernes
A post-processing method, which maps the punctiform atoms in molecular dynamics (MD) simulations of boundary lubrication onto smoothed particles, is used to estimate the asperity contact area defined by the...
The content of this RSS Feed (c) The Royal Society of Chemistry

Dynamic surface microstructural changes during tribological contact that determine the wear behaviour of hip prostheses; metals and ceramics

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00002D, PaperW. Mark Rainforth, Peng Zeng, Le Ma, Akemi Nogiwa Valdez, Todd Stewart
It is often the dynamic microstructural changes induced by tribological contact that determine whether or not a material exhibits good wear resistance. It is well known that the mechanical properties...
The content of this RSS Feed (c) The Royal Society of Chemistry

Physio-chemical hydrodynamic mechanism underlying the formation of thin adsorbed boundary films

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00118G, PaperWilliam W.F. Chong, Mircea Teodorescu, Homer Rahnejat
Formation of low shear strength surface-adhered thin films mitigates excessive friction in mixed or boundary regimes of lubrication. Tribo-films are formed as a consequence of molecular chemical reaction with the...
The content of this RSS Feed (c) The Royal Society of Chemistry

Tribology and Energy Efficiency: From Molecules to Lubricated Contacts to Complete Machines

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00122E, PaperIan Taylor
The impact of lubricants on energy efficiency is considered. Molecular details of base oils used in lubricants can have a great impact on the lubricant's physical properties which will affect...
The content of this RSS Feed (c) The Royal Society of Chemistry

Sliding friction at soft micro-patterned elastomer contacts

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00121G, PaperElise Degrandi-Contraires, Christophe Poulard, Frederic Restagno, Liliane Leger
In this paper, we present an experimental study of the friction between a smooth elastomer lens and an elastomer substrate micropatterned with hexagonal arrays of cylindrical pillars. Depending on the...
The content of this RSS Feed (c) The Royal Society of Chemistry

Anticorrosion Imidazolium Ionic Liquids as the Additive in Poly(ethylene glycol) for Steel/ Cu-Sn alloy Contacts

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00124A, PaperFeng Zhou, meirong cai, Yongmin Liang, Weimin Liu
3-((1H-benzo[d][1,2,3]triazol-1-yl)methyl)-1-methyl-1H-imidazolium hexafluorophosphates ([BTAMIM][PF6]) ionic liquids (ILs) were evaluated as friction reduction antiwear (AW) and anticorrosion additive in poly(ethylene glycol) (PEG) for steel/Cu-Sn alloy contacts at 100 [degree]C. The physical properties...
The content of this RSS Feed (c) The Royal Society of Chemistry

The origin of anti-wear chemitry of ZDDP

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00126H, PaperJean-Michel Martin
Molecular Dynamics has been used to simulate the anti-wear chemistry of zinc dialkyl dithiophosphate (ZDDP). The model simulates the digestion of abrasive particles into the zinc polyphosphate glass. The main...
The content of this RSS Feed (c) The Royal Society of Chemistry

Predictive modelling of fatigue failure in concentrated lubricated contacts

Faraday Disc. - 6 hours 8 min ago
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00116K, PaperPwt Evans, Ray Snidle, Michael Bryant, Kayri Sharif
Reducing frictional losses in response to the energy agenda will require use of less viscous lubricants causing hydrodynamically-lubricated bearings to operate with thinner films leading to "mixed lubrication" conditions in...
The content of this RSS Feed (c) The Royal Society of Chemistry

Asymmetric homogeneous hydrogenations at scale

Chem. Soc. Rev. - 6 hours 8 min ago

Chem. Soc. Rev., 2012, Advance Article
DOI: 10.1039/C2CS15312B, Critical ReviewDavid J. Ager, Andre H. M. de Vries, Johannes G. de Vries
This critical review discusses issues that can arise when scaling up an asymmetric hydrogenation.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Ruthenium(II) polypyridyl complexes and DNA-from structural probes to cellular imaging and therapeutics

Chem. Soc. Rev. - 6 hours 8 min ago

Chem. Soc. Rev., 2012, Advance Article
DOI: 10.1039/C2CS15299A, Tutorial ReviewMartin R. Gill, Jim A. Thomas
The wide potential applications of metal complexes that reversibly interact with DNA are illustrated through specific examples drawn from studies on ruthenium polypyridyl complexes.
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Drug development: longer-lived proteins

Chem. Soc. Rev. - 6 hours 8 min ago

Chem. Soc. Rev., 2012, Advance Article
DOI: 10.1039/C2CS15289D, Tutorial ReviewStephan Kontos, Jeffrey A. Hubbell
Therapeutic proteins are widely used in clinic for the treatment of various diseases. Here, we review state-of-the-art chemical- and protein engineering-based methods that aim to increase the residence time of therapeutic proteins in the body, and thus potentially increase their efficacy and potency.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry

Dynamic imine chemistry

Chem. Soc. Rev. - 6 hours 8 min ago

Chem. Soc. Rev., 2012, Advance Article
DOI: 10.1039/C2CS15305J, Tutorial ReviewMatthew E. Belowich, J. Fraser Stoddart
This review highlights the utilisation of a 19th Century reaction-imine bond formation-and its exploitation in the construction of supramolecular and mechanostereochemical systems.
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Surface functionalization of nanoparticles for nanomedicine

Chem. Soc. Rev. - 6 hours 8 min ago

Chem. Soc. Rev., 2012, Advance Article
DOI: 10.1039/C2CS15294K, HighlightRubul Mout, Daniel F. Moyano, Subinoy Rana, Vincent M. Rotello
This research Highlight emphasizes advances in tailoring nanoparticle interfaces for implementation in nanomedicine.
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The content of this RSS Feed (c) The Royal Society of Chemistry

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