John-Paul Flintoff, Sally Brock, Laura Bailey, Amanda Ursell, David Barnen, Neil Woodford, Peter Wade, Rachel de Thame, Jon Kirk, Mike Griffiths, Carol Davidson, Alastair McCall, Neil Wormald, Kathy Brewis, Martin James, Alex Cresswell-Turner, Steve Hinds, Anthony Sattin, Andrew Clover, Rosie Millard, John Elliott Social Affairs Correspondent, Hugh Canning, Andrew Stone, Brain Glanville, Sarah Dempster, James Delingpole, Holly Watt, Colin Thubron, Tom Stubbs, Shelley Von Strunckel, Christopher Morgan, Susan Greenfield, Ben Barber, Bharat Jashanmal, Kate Saunders, Sir Robert Worcester, Nick Rennison, S A, Chris Haskins, John Elliott, Graham Buckie, Maurice Chittenden, Richard Brooks Arts Editor, Virginia Rounding, Nick Thorpe, Jimmy Carr, Rodney Wood, Chris Haslam, Cerys Matthews, Paul Rowan, Alex Pell, Matthew Campbell, Rhiannon James, Nora Graham, Eliza Francis, James Knight, Graham Norwood, David Budworth, Harriet Harman, John Hutchins, Kevin McCloud, Sarah Baxter, Sara Hassan, Jason Dawe, David Thomson, Sian Griffiths, Jonathan Northcroft, Dr P Nicholson, Hala Jaber, Frank Parker, Jim Munro, Peter Whittle, Colin Brennan, Jasper Rees, Andrew Longmore, Russell Brand, Peter Day, Philip Matthews, Andrew Quested, Emma Wells, Richard Green, E P, Andrew Sullivan, Clive Davis, Howard Pedraza, Flora Bagenal, Rev Peter Owen-Jones, Matt Rudd, Christine Lamb, Mike Hill, Stuart Barnes, Michael Gillard, Victoria Segal, Edward Porter, Clare Gascoigne, Claire Newell, Gail-Marie Lockwood, Sarah Bridge, Jeff Potter, Sarah-Kate Templeton Health Correspondent, Pat Malone, Robin Scott-Elliot, Paul Donovan, C Higgins, Zoe Thomas, Steve Boyd, Simon Goodley, Richard Brooks, Stuart Andrews, David Leppard, Tim Rayment, Chris Ryan, R P Richards, Andy Dixon, Robert Booth, Gareth Huw Davies, Duncan Castles, Diana Wright, Barry Flatman, Stephen Armstrong, Fergus Dowding, Bethan Cole, Marc Horne, Ray Hutton, M E, Albert Rose, Steven Saunders, Michael Smith, Muddassar Ahmed, Harold Evans, A A Gill, Brian Glanville, Robert MacFarlane, Paul Summerfield, Jonathan Milne, Daniel Emery, Nigel Powell, Roger Dobson, Brian Doogan, John Aizlewood, John Cornwell, Jonathan Futrell, Hugh Pearman, Karen Gorrigan, Julian Ryall, Tom Deveson, Richard Lewis, Helen Stewart, John Dugdale, William Kay, Barbara Hall, Jon Swain, Rob Hughes, John Peter, John Waples Business Editor, Adam Hathaway, John Alridge, Merryn, Marc de Leval, Ivo Tennant, David Gower, Trevor Openshaw, Matt Wolf, David Smith, Tim Richards, David Cracknell Political Editor, Emma Unsworth, Steve Irwin, Stephen Grey, Adrian Furnham, Christopher Hart, H Bradley, Elizabeth Scott-Baumann, Hugh Mcllvanney, Hugh Schollick, Stewart Lee, Michael Portillo, Geraldine Aron, Camillo Fracassini, Gordon Staples, Maggie Gee, Chris Woodhead, Sarah Duguid, David Langton, Mark Edwards, Rachel Bridge, Raymond Keene, Stephen Jones, Sally Brampton, Stephen Bleach, Louise Armitstead, Nick Cain, Bevis Hillier, Kailash Chand, Trevor Lewis, Stephen Paul, Roland White, David Profumo, Mark Palmer, J Watson, Abul Taher, Chris Williams, Alan Bloom, Mark Franchetti, Tim Samuel, Michael Sheridan, John Waples, John Kirk, David Horspool, Simon Jenkins, Stephen Pettitt, Jonathan Calvert, Andrew Frankel, Joe Lovejoy, Ali Hussain, Dan Cairns, Simon Howard, Dominic Rushe, Karen Robinson, Fred Redwood, Daisy Waugh, Colin Watts, Nicholas Rufford InGear Editor, Frank Whitford, Kathryn Cooper, Wilkinson scare, Martin Brundle, Ron Marchant, Tony Allen-Mills, Simon Wilde, Ariel Leve, Robert Sandall, Robert Winnett, Emma Jenkinson, Irwin Stelzer, Peter Wilson, David Dougill, Andrew Cave, Arthur Parkinson, Jason Allardyce, Rob Maul, Paul Forsyth, Mark Taylor, Jeremy Clarkson, Dean Nelson, Wendy Sloane, Robert Harris, Sally Kinness, Helen McCormack, Richard Johnson, Paul Ham, Roger Eglin, Paul Driver, Derek Clements, Michael Woodhead, Donavan Winter, Ian Hawkey, Paul Durman, Annabel Goldsmith, Jane Nottage, Harriet Perry, Fran Forsyth, Phil Baker, Christina Lamb, Gillian Anderson, Rod Liddle, Douglas Alexander, Cosmo Landesman, Damian Wild, Paul Wilkinson, Helen Hawkins, Dominic O'Connell, Caroline Donald, Ian Critchley, John Stern, Colin McDowell, Michael Arthur, Jonathan Leake Environment Editor, Michael Bailey, Jon Parkin, Lynne Kelleher, Grant Ringshaw, Shane Watson, Yuba Bessaoud, Jonathan Leake, Katharine Hibbert, Louis Wiss, Clare Francis, Anthony New, John Harlow, Stirling Moss, Melaine Clayton, David Craik, David Sanderson, Claudia Croft, Will Iredale, Jessica Bown, Sally Kinnes, Glenda Brett-Holt, Scarlett Johansson, Peter Almond, Minette Marrin, Andrew Davidson, Pete Oliver, Joanna Simon, India Knight, Helen Mirren,
... Krall From This Moment On Moussu T E Lei Jovents Forever Polida Echo & the Bunnymen Down… Get ... of Six Women in Revolutionary France by Lucy Moore Read on. . . In the news Books behind the ...
2006 - Gale Group | Sunday Times HA GDA
Produção Nacional
Revisado por pares
... o modelo proposto por Moore (1975) - conhecido como Lei de Moore - que descreve adequadamente a evolução tecnológica dos processadores. ... para utilização deste como ferramenta preditiva. Palavras-chave: Lei de Moore. Previsão. Evolução tecnológica.
Tópico(s): Agricultural and Food Sciences
2009 - Institute of Management Foundation | Future Studies Research Journal Trends and Strategies
Zhong Wu, Jianliang Lin, John J. Moore, M.K. Lei,
Nanocrystalline Cr–C–N coatings were deposited by pulsed closed field unbalanced magnetron sputtering. The microstructure, chemical composition and elemental chemical state of the coatings were investigated using field-emission scanning electron microscopy, glancing incident angle x-ray diffraction and x-ray photoelectron spectroscopy. Mechanical and tribological properties of the coatings were measured by nanoindentation and ball-on-disk wear tests. The Cr–C–N coatings consist of nanocrystalline ...
Tópico(s): Advanced materials and composites
2009 - Elsevier BV | Surface and Coatings Technology
Yixiang Ou, Jianliang Lin, H.L. Che, W.D. Sproul, John J. Moore, M.K. Lei,
CrN/TiN multilayer coatings were deposited by pulsed dc magnetron sputtering (PDCMS) in a closed field unbalanced magnetron sputtering system. The Ti target power was maintained at 2000 W while the Cr target power was varied from 70 to 1000 W. As the Cr target power was increased, CrN/TiN multilayer coatings with the Cr/(Cr + Ti) ratio of 0.037–0.573 had a single phase face-centered cubic structure with a texture evolution from (111) to (220). The residual stress of the coatings increased from − 1.03 GPa ...
Tópico(s): Boron and Carbon Nanomaterials Research
2015 - Elsevier BV | Surface and Coatings Technology
Produção Nacional
Revisado por pares
This study´s core objective is to validate whether the model proposed by Moore (1975) - also known as Moore’s Law – adequately describes the technological evolution of microprocessors. It further poses to verify whether this model is a feasible predictive tool and, finally, present an alternative model. To this extent, the forecasting technique method, based on historical data projections, will be applied. Statistical tests employed presented strong indications that the method proposed by Moore (1975) ...
Tópico(s): Economic Growth and Productivity
2009 - Institute of Management Foundation | Future Studies Research Journal Trends and Strategies
Yixiang Ou, Jianliang Lin, H.L. Che, John J. Moore, W.D. Sproul, M.K. Lei,
Deep oscillation magnetron sputtering (DOMS) is an alternative high-power pulsed magnetron sputtering technique, which offers virtually arc-free depositions especially for reactive depositions of some insulating coatings under optimized pulsing conditions. CrN/TiN superlattice coatings with a modulated period (Λ) ranging from 5.7 to 10.2 nm were deposited using a combination of DOMS and pulsed dc magnetron sputtering in a closed field unbalanced magnetron sputtering system. As a Λ was increased from ...
Tópico(s): Boron and Carbon Nanomaterials Research
2015 - Elsevier BV | Thin Solid Films
Zenan Yu, Julian Moore, Jean Calderon, Lei Zhai, Jayan Thomas,
Cable-shaped supercapacitors (SCs) have recently aroused significant attention due to their attractive properties such as small size, lightweight, and bendability. Current cable-shaped SCs have symmetric device configuration. However, if an asymmetric design is used in cable-shaped supercapacitors, they would become more attractive due to broader cell operation voltages, which results in higher energy densities. Here, a novel coil-type asymmetric supercapacitor electrical cable (CASEC) is reported ...
Tópico(s): Advanced Battery Technologies Research
2015 - Wiley | Small
Produção Nacional
... necessidade da nanoeletrônica de ultrapassar as barreiras da lei de Moore uma década atrás 2 , o que também levou ... devido à óptica e à fotônica, "existe uma lei de Moore para os lasers, pelo escalamento no aumento da ... virtuoso de desenvolvimento é completado com uma nova lei de Moore em jogo e a "fronteira final" redefinida.Todas ...
Tópico(s): Science and Science Education
2020 - | Revista Brasileira de Aplicações de Vácuo
Nitin Choudhary, Chao Li, Julian Moore, Narasimha Nagaiah, Lei Zhai, Yeonwoong Jung, Jayan Thomas,
The world is recently witnessing an explosive development of novel electronic and optoelectronic devices that demand more-reliable power sources that combine higher energy density and longer-term durability. Supercapacitors have become one of the most promising energy-storage systems, as they present multifold advantages of high power density, fast charging-discharging, and long cyclic stability. However, the intrinsically low energy density inherent to traditional supercapacitors severely limits ...
Tópico(s): Conducting polymers and applications
2017 - | Advanced Materials
Jianliang Lin, Niingyi Zhang, Zhili Wu, William D. Sproul, M.J. Kaufman, Mingkai Lei, John J. Moore,
Thick and dense CrN/AlN superlattice coatings (up to10 μm) have been deposited by a hybrid magnetron sputtering process from metallic Cr and Al targets, which were powered by modulated pulsed power (MPP) magnetron sputtering and middle frequency pulsed dc magnetron sputtering (PMS) techniques, respectively. The bilayer period (Λ) of the coatings was changed from 10 to 2.5 nm by varying the ratio of the N2 flow rate to the total gas flow rate. The microstructure and properties of the CrN/AlN coatings ...
Tópico(s): Boron and Carbon Nanomaterials Research
2011 - Elsevier BV | Surface and Coatings Technology
Moein Mozaffarzadeh, Colman Moore, Erfan Barzegar Golmoghani, Yash Mantri, Ali Hariri, Alec Jorns, Lei Fu, Martin D. Verweij, Mahdi Orooji, Nico de Jong, Jesse V. Jokerst,
Simultaneous visualization of the teeth and periodontium is of significant clinical interest for image-based monitoring of periodontal health. We recently reported the application of a dual-modality photoacoustic-ultrasound (PA-US) imaging system for resolving periodontal anatomy and periodontal pocket depths in humans. This work utilized a linear array transducer attached to a stepper motor to generate 3D images via maximum intensity projection. This prior work also used a medical head immobilizer ...
Tópico(s): Ultrasound Imaging and Elastography
2021 - Optica Publishing Group | Biomedical Optics Express
Hao Ying, Arden L. Moore, Jie Cui, Yaoyao Liu, Deshuai Li, Shuo Han, Yuan Yao, Zhiwei Wang, Lei Wang, Shanshan Chen,
The grain size effect on the thermal transport properties of hexagonal boron nitride (h-BN) thin films was experimentally investigated using the opto-thermal Raman technique. High-quality monolayer h-BN with mean grain sizes ranging from ~7 µm to ~19 nm were successfully synthesized on Pt foil by chemical vapor deposition (CVD). The thermal conductivity (κ) of the single-crystalline h-BN was measured to be ~545 Wm−1 K−1 at 315K, well above the bulk value, and more than a factor of four higher than the ...
Tópico(s): Advanced Thermoelectric Materials and Devices
2019 - IOP Publishing | 2D Materials
Lily A. Robertson, Ilya A. Shkrob, Garvit Agarwal, Yuyue Zhao, Yu Zhou, Rajeev S. Assary, Lei Cheng, Jeffrey S. Moore, Lu Zhang,
Monitoring battery health is challenging. Self-reporting enables the rapid health assessment of redox flow batteries (RFBs) and provides insight into degradation mechanisms of electrochemically active molecules (redoxmers). Here we introduce fluorescence as an orthogonal property to probe this chemistry in situ. An established anolyte redoxmer, 2,1,3-benzothiadiazole, is rendered an efficient blue-green fluorophore through minimalistic derivatization. One of the derivatives is electrochemically reversible ...
Tópico(s): Conducting polymers and applications
2020 - American Chemical Society | ACS Energy Letters
Yuanqing Wang, Lei Li, Li Wang, Adrian T. Moore, Samuel R. Staley, Zongzhi Li,
This study examines mode choice behavior for intercity business and personal/recreational trips. It uses multinomial logit and nested logit methods to analyze revealed preference data provided by travelers along the Yong-Tai-Wen multimodal corridor in Zhejiang, China. Income levels are found to be positively correlated with mode share increases for high-speed rail (HSR), expressway-based bus, and auto modes, while travel time and trip costs are negatively correlated with modal shift. Longer distance ...
Tópico(s): Urban Transport and Accessibility
2014 - Taylor & Francis | Transportation Planning and Technology
V. B. Nascimento, R. G. Moore, J. Rundgren, Jiandi Zhang, Lei Cai, Rongying Jin, David Mandrus, E. W. Plummer,
Transition metal oxides (TMOs) are famous for the intimate coupling between the lattice, electrons, and spin, creating exotic functionality. Creating a surface, breaking the symmetry, should result in lattice distortions that due to the close coupling could create different ``surface phases.'' Historically it has been very difficult to use low energy electron diffraction $I\ensuremath{-}V$ to quantitatively determine the surface structure of TMOs. A signature of this problem is the large values commonly ...
Tópico(s): X-ray Diffraction in Crystallography
2007 - American Physical Society | Physical Review B
E. F. Moore, Joshua Jarrell, Lei R. Cao,
Deposition of heteroepitaxial diamond via microwave chemical vapor deposition has been performed on a 4H-SiC substrate using bias enhanced nucleation followed by a growth step. In future work, the diamond film will serve as a protective layer for an alpha particle sensor designed to function in an electrorefiner during pyroprocessing of spent fuel. The diamond deposition on the 4H-SiC substrate was carried out using a methane-hydrogen gas mixture with varying gas flow rates. The nucleation step ...
Tópico(s): Semiconductor materials and devices
2017 - Elsevier BV | Heliyon
Produção Nacional
Cláudio Augusto Carvalho Moura,
... longo do tempo por meio da observação da Lei de Moore (MOORE, 1965). A partir daí, tomando como exemplo ...
Tópico(s): Education and Digital Technologies
2022 - UNIVERSIDADE FEDERAL DE SANTA CATARINA | Texto Digital
Feng‐Lei Jiang, Yi Liang, Misty Moore, Minyong Chen, Thomas Röhl, Klaas-Jan van Wijk, Jan‐Willem L. de Gier, Ralph Henry, Ross Dalbey,
A new component of the bacterial translocation machinery, YidC, has been identified that specializes in the integration of membrane proteins. YidC is homologous to the mitochondrial Oxa1p and the chloroplast Alb3, which functions in a novel pathway for the insertion of membrane proteins from the mitochondrial matrix and chloroplast stroma, respectively. We find that Alb3 can functionally complement the Escherichia coli YidC depletion strain and promote the membrane insertion of the M13 procoat and ...
Tópico(s): Bacterial Genetics and Biotechnology
2002 - Elsevier BV | Journal of Biological Chemistry
Zhixia Li, Lily A. Robertson, Ilya A. Shkrob, Kyle C. Smith, Lei Cheng, Lu Zhang, Jeffrey S. Moore, Yang Zhang,
While many practically important electrolytes contain lithium ions, interactions of these ions are particularly difficult to probe experimentally because of their small X-ray and neutron scattering cross sections and large neutron absorption cross sections. Molecular dynamics (MD) is a powerful tool for understanding the properties of nonaqueous electrolyte solutions from the atomic level, but the accuracy of this computational method crucially depends on the physics built into the classical force ...
Tópico(s): Thermodynamic properties of mixtures
2020 - American Chemical Society | The Journal of Physical Chemistry B
Jieren Shao, Huiling Ao, Lei Qin, Jocelyn Elgin, Curtis E. Moore, Yehia Khalifa, Songwei Zhang, Yiying Wu,
Developing K-ion conducting solid-state electrolytes (SSEs) plays a critical role in the safe implementation of potassium batteries. In this work, a chalcogenide-based potassium ion SSE is reported, K3 SbSe4 , which adopts a trigonal structure at room temperature. Single-crystal structural analysis reveals a trigonal-to-cubic phase transition at the low temperature of 50 °C, which is the lowest among similar compounds and thus provides easy access to the cubic phase. The substitution of barium for potassium ...
Tópico(s): Thermal Expansion and Ionic Conductivity
2023 - | Advanced Materials
Zhong Wu, Jianliang Lin, John J. Moore, M.K. Lei,
Cr–C–N coatings with different compositions, i.e. (C + N)/Cr atomic ratios (x) of 0.81–2.77, were deposited using pulsed closed field unbalanced magnetron sputtering by varying the chromium and graphite target powers, the pulse configuration and the ratio of the nitrogen flow rate to the total gas flow rate. Three kinds of nanostructures were identified in the Cr–C–N coatings dependent on the x values: a nano-columnar structure of hexagonal closed-packed (hcp) Cr2(C,N) and face-centered cubic (fcc) Cr( ...
Tópico(s): Advanced materials and composites
2012 - Elsevier BV | Thin Solid Films
Mitchell J. Schultz, Xiaoyu Zhang, Sakulsuk Unarunotai, Dahl‐Young Khang, Qing Cao, Congjun Wang, Changhui Lei, Scott MacLaren, Julio A. N. T. Soares, I. Petrov, Jeffrey S. Moore, John A. Rogers,
Because of their potential for use in advanced electronic, nanomechanical, and other applications, large two-dimensional, carbon-rich networks have become an important target to the scientific community. Current methods for the synthesis of these materials have many limitations including lack of molecular-level control and poor diversity. Here, we present a method for the synthesis of two-dimensional carbon nanomaterials synthesized by Mo- and Cu-catalyzed cross-linking of alkyne-containing self- ...
Tópico(s): Molecular Junctions and Nanostructures
2008 - National Academy of Sciences | Proceedings of the National Academy of Sciences
Radoslav Z. Pavlović, Sarah E. Border, Tyler J. Finnegan, Zhi‐Quan Lei, Michael J. Gunther, Eva Muñoz, Curtis E. Moore, Christopher M. Hadad, Jovica D. Badjić,
Two molecular baskets 16-, each with three (S)-glutamic acids at its rim, were found (NMR, ITC) to complex diammonium alkanes 22+-52+ (+H3N(CH2)nNH3+, n = 7-10) giving ternary [2-5⊂12]10- assemblies (K = 107-109 M-2). From the magnetic perturbation of proton nuclei (1H NMR, NICS), we deduced that each guest assumed a U shape within the binary complex, [2-5⊂1]4-. Two ammonium groups were bound in the "anionic nest" at the top of 16-, while the hydrocarbon chain resided in its nonpolar cavity. From detailed ITC ...
Tópico(s): DNA and Nucleic Acid Chemistry
2019 - American Chemical Society | Journal of the American Chemical Society
Xu Cao, Siping Xiong, Ye‐Bo Zhou, Zhiyuan Wu, Lei Ding, Yike Zhu, Mark E. Wood, Matthew Whiteman, Philip K. Moore, Jin‐Song Bian,
Cisplatin is a major therapeutic drug for solid tumors, but can cause severe nephrotoxicity. However, the role and therapeutic potential of hydrogen sulfide (H2S), an endogenous gasotransmitter, in cisplatin-induced nephrotoxicity remain to be defined.Cisplatin led to the impairment of H2S production in vitro and in vivo by downregulating the expression level of cystathionine γ-lyase (CSE), which may contribute to the subsequent renal proximal tubule (RPT) cell death and thereby renal toxicity. H2S ...
Tópico(s): Lanthanide and Transition Metal Complexes
2018 - Mary Ann Liebert, Inc. | Antioxidants and Redox Signaling
Wei‐Kun Wang, Tyler J. Finnegan, Zhi‐Quan Lei, Xingrong Zhu, Curtis E. Moore, Kejia Shi, Jovica D. Badjić,
A dual-cavity basket 16-, holding six γ-aminobutyric acids at its termini, encapsulates variously sized aromatics 2-7+, including four anthracyclines (8+-11+), driven by the hydrophobic effect and hydrogen bonding (HB). In particular, the formation of stable (K = 1012 M-2) anthracycline complexes [(8+-11+)2⊂16-], assembled into nanoparticles, occurred with positive homotropic cooperativity (α = 4K2/K1 = 1.1 ± 0.3 × 102-1.3 ± 0.7 × 103) in PBS medium. Importantly, weakening the first binding event (K1, i.e. by removing ...
Tópico(s): Innovative Microfluidic and Catalytic Techniques Innovation
2019 - Royal Society of Chemistry | Chemical Communications
Qing Jin, Lei Tao, Yiming Feng, Dawei Xia, Glenn A. Spiering, Anyang Hu, Robert B. Moore, Feng Lin, Haibo Huang,
Lignin is one of the most abundant biopolymers in nature. Although lignin-derived hard carbon (L-HC) has potential to be used as a sodium-ion battery (SIB) anode but is limited by its poor electrochemical performance. In nature, lignin normally coexists with cellulose and hemicellulose in agricultural biomass, and studies have applied different agricultural biomasses to make SIB anodes; however, the underlying mechanism, especially the functionality of each component, is still unclear. In this study, ...
Tópico(s): Advanced Battery Materials and Technologies
2022 - American Chemical Society | ACS Sustainable Chemistry & Engineering
Xinge Zhang, Sangho Jee, Jialin Fu, Bowen Wang, Luyang Zhu, Yiming Tu, Lei Cheng, Gaotian Liu, Rui Li, Justin B. Moore,
This study examined the independent associations between psychosocial factors, perceived neighborhood characteristics, and physical activity (PA) in Chinese adolescents. A cross-sectional study using a convenience sample was conducted in fall 2019 at a high school in Wuhan, China. Sociodemographic data, body weight, height, psychosocial factors, perceptions of neighborhood environment, and PA were collected using questionnaires. Hierarchical linear regression analyses were performed in 4 steps, where ...
Tópico(s): Obesity, Physical Activity, Diet
2021 - Human Kinetics | Journal of Physical Activity and Health
Nitin Choudhary, Chao Li, Julian Moore, Narasimha Nagaiah, Lei Zhai, Yeonwoong Jung, Jayan Thomas,
The development of asymmetric supercapacitor (ASC) electrodes and devices, which offer enhanced voltage output and high energy densities is reported by Yeonwoong Jung, Jayan Thomas, and co-workers in article number 1605336. Newly emerging transition-metal dichalcogenides (TMDs) and MXene materials are discussed for their potential candidature. Several flexible ASC designs (sandwitch-type, fiber-type) with rational configurations offer exceptional properties that enable them for future flexible energy- ...
Tópico(s): MXene and MAX Phase Materials
2017 - | Advanced Materials
Radoslav Z. Pavlović, Zhi‐Quan Lei, Murat Güney, Rémy F. Lalisse, Ryan G. Hopf, Judith C. Gallucci, Curtis E. Moore, Han Xie, Christopher M. Hadad, Jovica D. Badjić,
In this work, we report a mechanism by which stereoisomeric and twisted capsules P/M-1 direct their dynamic chirality in the presence of haloalkane guests. The capsule comprises a static, but twisted, cage that is linked to a dynamic tris(2-pyridylmethyl)amine (TPA) lid at its top. From the results of experimental (NMR spectroscopy and X-ray crystallography) and computational (DFT) studies, the TPA lid was shown to assume clockwise (+) and counterclockwise (-) folds with diastereomeric (but racemic) capsules ...
Tópico(s): Supramolecular Self-Assembly in Materials
2019 - Wiley | Chemistry - A European Journal
Corinne E. Isaac, Christine M. Gleave, Paméla T. Nasr, Hoang L. Nguyen, Elizabeth A. Curley, Jonilyn Yoder, Eric W. Moore, Lei Chen, John A. Marohn,
We report achieving enhanced nuclear magnetization in a magnetic resonance force microscope experiment at 0.6 tesla and 4.2 kelvin using the dynamic nuclear polarization (DNP) effect. In our experiments a microwire coplanar waveguide delivered radiowaves to excite nuclear spins and microwaves to excite electron spins in a 250 nm thick nitroxide-doped polystyrene sample. Both electron and proton spin resonance were observed as a change in the mechanical resonance frequency of a nearby cantilever having ...
Tópico(s): Carbon Nanotubes in Composites
2017 - Royal Society of Chemistry | Physical Chemistry Chemical Physics