Now showing items 1-20 of 325

    • Absorption Spectroscopy of an Individual Fano Cluster 

      Yorulmaz, Mustafa; Hoggard, Anneli; Zhao, Hangqi; Wen, Fangfang; Chang, Wei-Shun; Halas, Naomi J.; Nordlander, Peter; Link, Stephan (2016)
      Plasmonic clusters can exhibit Fano resonances with unique and tunable asymmetric line shapes, which arise due to the coupling of bright and dark plasmon modes within each multiparticle structure. These structures are ...
    • Actinide chemistry using singlet-paired coupled cluster and its combinations with density functionals 

      Garza, Alejandro J.; Alencar, Ana G. Sousa; Scuseria, Gustavo E. (2016)
      Singlet-paired coupled cluster doubles (CCD0) is a simplification of CCD that relinquishes a fraction of dynamic correlation in order to be able to describe static correlation. Combinations of CCD0 with density functionals ...
    • Active patterning and asymmetric transport in a model actomyosin network 

      Wang, Shenshen; Wolynes, Peter G. (2013)
      Cytoskeletal networks, which are essentially motor-filament assemblies, play a major role in many developmental processes involving structural remodeling and shape changes. These are achieved by nonequilibrium self-organization ...
    • Adsorption and Unfolding of a Single Protein Triggers Nanoparticle Aggregation 

      Dominguez-Medina, Sergio; Kisley, Lydia; Tauzin, Lawrence J.; Hoggard, Anneli; Shuang, Bo; Indrasekara, A. Swarnapali D.S.; Chen, Sishan; Wang, Lin-Yung; Derry, Paul J.; Liopo, Anton; Zubarev, Eugene R.; Landes, Christy F.; Link, Stephan (2016)
      The response of living systems to nanoparticles is thought to depend on the protein corona, which forms shortly after exposure to physiological fluids and which is linked to a wide array of pathophysiologies. A mechanistic ...
    • Adsorption of a Protein Monolayer via Hydrophobic Interactions Prevents Nanoparticle Aggregation under Harsh Environmental Conditions 

      Dominguez-Medina, Sergio; Blankenburg, Jan; Olson, Jana; Landes, Christy F.; Link, Stephan (2013)
      We find that citrate-stabilized gold nanoparticles aggregate and precipitate in saline solutions below the NaCl concentration of many bodily fluids and blood plasma. Our experiments indicate that this is due to complexation ...
    • All-time dynamics of continuous-time random walks on complex networks 

      Teimouri, Hamid; Kolomeisky, Anatoly B. (2013)
      The concept of continuous-time random walks (CTRW) is a generalization of ordinary random walk models, and it is a powerful tool for investigating a broad spectrum of phenomena in natural, engineering, social, and economic ...
    • Aluminum Nanocrystals 

      McClain, Michael J.; Schlather, Andrea E.; Ringe, Emilie; King, Nicholas S.; Liu, Lifei; Manjavacas, Alejandro; Knight, Mark W.; Kumar, Ish; Whitmire, Kenton; Everitt, Henry O.; Nordlander, Peter; Halas, Naomi J. (2015)
      We demonstrate the facile synthesis of high purity aluminum nanocrystals over a range of controlled sizes from 70 to 220 nm diameter with size control achieved through a simple modification of solvent ratios in the reaction ...
    • Alumoxane/ferroxane nanoparticles for the removal of viral pathogens: the importance of surface functionality to nanoparticle activity 

      Maguire-Boyle, Samuel J.; Liga, Michael V.; Li, Qilin; Barron, Andrew R. (2012)
      A bi-functional nano-composite coating has been created on a porous Nomex fabric support as a trap for aspirated virus contaminated water. Nomex fabric was successively dip-coated in solutions containing cysteic acid ...
    • Ambient solid-state mechano-chemical reactions between functionalized carbon nanotubes 

      Kabbani, Mohamad A.; Tiwary, Chandra Sekhar; Autreto, Pedro A.S.; Brunetto, Gustavo; Som, Anirban; Krishnadas, K.R.; Ozden, Sehmus; Hackenberg, Ken P.; Gong, Yongi; Galvao, Douglas S.; Vajtai, Robert; Kabbani, Ahmad T.; Pradeep, Thalappil; Ajayan, Pulickel M. (2015)
      Carbon nanotubes can be chemically modified by attaching various functionalities to their surfaces, although harsh chemical treatments can lead to their break-up into graphene nanostructures. On the other hand, direct ...
    • Aminopolycarboxylate Bismuth(III)-Based Heterometallic Compounds as Single-Source Molecular Precursors for Bi4V2O11 and Bi2CuO4 Mixed Oxides 

      Bulimestru, Ion; Shova, Sergiu; Popa, Nelea; Roussel, Pascal; Capet, Frederic; Vannier, Rose-Noelle; Djelal, Nora; Burylo, Laurence; Wignacourt, Jean-Pierre; Gulea, Aurelian; Whitmire, Kenton H. (2014)
      Five heterometallic complexes of general formula M(L)y{Bi(APC)}2·nH2O [M = VO2+, Cu2+; APC = aminopolycarboxylate, in this work ethylenediaminetetraacetate (edta4–) or 1,2 cyclohexanediaminetetraacetate (cdta4–); L = ...
    • Analysis of Cooperative Behavior in Multiple Kinesins Motor Protein Transport by Varying Structural and Chemical Properties 

      Uppulury, Karthik; Efremov, Artem K.; Driver, Jonathan W.; Jamison, D. Kenneth; Diehl, Michael R.; Kolomeisky, Anatoly B. (2013)
      Intracellular transport is a fundamental biological process during which cellular materials are driven by enzymatic molecules called motor proteins. Recent optical trapping experiments and theoretical analysis have uncovered ...
    • Analytic energy gradient for the projected Hartree–Fock method 

      Schutski, Roman; Jiménez-Hoyos, Carlos A.; Scuseria, Gustavo E. (2014)
      We derive and implement the analytic energy gradient for the symmetry Projected Hartree–Fock (PHF) method avoiding the solution of coupled-perturbed HF-like equations, as in the regular unprojected method. Our formalism ...
    • Anionic Bismuth-Oxido Carboxylate Clusters with Transition Metal Countercations 

      Fernandez, Ismael I. Loera; Donaldson, Samantha L.; Schipper, Desmond E.; Andleeb, Sohaila; Whitmire, Kenton H. (2016)
      Six new anionic bismuth-oxido clusters containing trifluoroacetate ligands were prepared. These include two new Bi6O8 clusters: [M(NCMe)2(H2O)4]3[Bi6(μ3-O)4(μ3-OH)4(CF3CO2)12] with an octahedral Bi6O4(OH)4 core (M = Ni, ...
    • Anthropogenic Carbon Nanotubes Found in the Airways of Parisian Children 

      Kolosnjaj-Tabi, Jelena; Just, Jocelyne; Hartman, Keith B.; Laoudi, Yacine; Boudjemaa, Sabah; Alloyeau, Damien; Szwarc, Henri; Wilson, Lon J.; Moussa, Fathi (2015)
      Compelling evidence shows that fine particulate matters (PMs) from air pollution penetrate lower airways and are associated with adverse health effects even within concentrations below those recommended by the WHO. A paper ...
    • Antioxidant Carbon Particles Improve Cerebrovascular Dysfunction Following Traumatic Brain Injury 

      Bitner, Brittany R.; Marcano, Daniela C.; Berlin, Jacob M.; Fabian, Roderic H.; Cherian, Leela; Culver, James C.; Dickinson, Mary E.; Robertson, Claudia S.; Pautler, Robia G.; Kent, Thomas A.; Tour, James M. (2012)
      Injury to the neurovasculature is a feature of brain injury and must be addressed to maximize opportunity for improvement. Cerebrovascular dysfunction, manifested by reduction in cerebral blood flow (CBF), is a key factor ...
    • Are Isoursenol and γ-Amyrin Rare Triterpenes in Nature or Simply Overlooked by Usual Analytical Methods? 

      Shan, Hui; Wilson, William K.; Castillo, Dorianne A.; Matsuda, Seiichi P.T. (2015)
      Among pentacyclic triterpenes commonly found in plants, γ-amyrin and isoursenol are seldom reported and considered rare in nature. It was hypothesized that these triterpenes are instead routinely overlooked due to inadequate ...
    • Assessing Inhomogeneity in Sorted Samples of Single-Walled Carbon Nanotubes through Fluorescence and Variance Spectroscopy 

      Kadria-Vili, Yara; Sanchez, Stephen R.; Bachilo, Sergei M.; Weisman, R. Bruce (2017)
      Detailed spectroscopic analysis has been used to study the homogeneity of single-walled carbon nanotube fractions carefully prepared by nonlinear density gradient ultracentrifugation sorting. Two distinct colored bands ...
    • Assessment of the Tao-Mo nonempirical semilocal density functional in applications to solids and surfaces 

      Mo, Yuxiang; Car, Roberto; Staroverov, Viktor N.; Scuseria, Gustavo E.; Tao, Jianmin (2017)
      Recently, Tao and Mo developed a semilocal exchange-correlation density functional. The exchange part of this functional is derived from a density-matrix expansion corrected to reproduce the fourth-order gradient expansion ...
    • Atomic cobalt on nitrogen-doped graphene for hydrogen generation 

      Fei, Huilong; Dong, Juncai; Arellano-Jiménez, M. Josefina; Ye, Gonglan; Kim, Nam Dong; Samuel, Errol L.G.; Peng, Zhiwei; Zhu, Zhuan; Qin, Fan; Bao, Jiming; Yacaman, Miguel Jose; Ajayan, Pulickel M.; Chen, Dongliang; Tour, James M. (2015)
      Reduction of water to hydrogen through electrocatalysis holds great promise for clean energy, but its large-scale application relies on the development of inexpensive and efficient catalysts to replace precious platinum ...
    • Atomic H-Induced Mo2C Hybrid as an Active and Stable Bifunctional Electrocatalyst 

      Fan, Xiujun; Liu, Yuanyue; Peng, Zhiwei; Zhang, Zhenhua; Zhou, Haiqing; Zhang, Xianming; Yakobson, Boris I.; Goddard, William A. III; Guo, Xia; Hauge, Robert H.; Tour, James M. (2017)
      Mo2C nanocrystals (NCs) anchored on vertically aligned graphene nanoribbons (VA-GNR) as hybrid nanoelectrocatalysts (Mo2C–GNR) are synthesized through the direct carbonization of metallic Mo with atomic H treatment. The ...