Now showing items 1-20 of 222

    • 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 ...
    • Periodic, Quasi-periodic and Chaotic Dynamics in Simple Gene Elements with Time Delays 

      Suzuki, Yoko; Lu, Mingyang; Ben-Jacob, Eshel; Onuchic, José N. (2016)
      Regulatory gene circuit motifs play crucial roles in performing and maintaining vital cellular functions. Frequently, theoretical studies of gene circuits focus on steady-state behaviors and do not include time delays. In ...
    • Development of Morphogen Gradients with Spatially Varying Degradation Rates 

      Teimouri, Hamid; Bozorgui, Behnaz; Kolomeisky, Anatoly B. (2016)
      Successful biological development via spatial and temporal regulations of cell differentiation relies on the action of multiple signaling molecules that are known as morphogens. It is now well established that biological ...
    • Impacts of biochar concentration and particle size on hydraulic conductivity and DOC leaching of biochar-sand mixtures 

      Liu, Zuolin; Dugan, Brandon; Masiello, Caroline A.; Barnes, Rebecca T.; Gallagher, Morgan E.; Gonnermann, Helge (2016)
      The amendment of soil with biochar can sequester carbon and alter hydrologic properties by changing physical and chemical characteristics of soil. To understand the effect of biochar amendment on soil hydrology, we measured ...
    • Experiments towards size and dopant control of germanium quantum dots for solar applications 

      Oliva-Chatelain, Brittany L.; Barron, Andrew R. (2016)
      While the literature for the doping of silicon quantum dots (QDs) and nanocrystals (NCs) is extensive, reports of doping their germanium analogs are sparse. We report a range of attempts to dope Ge QDs both during and ...
    • Ultrathin AAO Membrane as a Generic Template for Sub-100 nm Nanostructure Fabrication 

      Robatjazi, Hossein; Bahauddin, Shah Mohammad; Macfarlan, Luke H.; Fu, Sidan; Thomann, Isabell (2016)
      Anodic aluminum oxide (AAO) templates are emerging as a platform for simple, cost-effective, high-throughput top-down nanofabrication of regular arrays of nanostructures. Thus far, however, AAO pattern transfer has largely ...
    • Broadband Absorption Engineering to Enhance Light Absorption in Monolayer MoS2 

      Bahauddin, Shah Mohammad; Robatjazi, Hossein; Thomann, Isabell (2016)
      Here we take a first step toward tackling the challenge of incomplete optical absorption in monolayers of transition metal dichalcogenides for conversion of photon energy, including solar, into other forms of energy. We ...
    • Toward carbon nanotube-based imaging agents for the clinic 

      Hernández-Rivera, Mayra; Zaibaq, Nicholas G.; Wilson, Lon J. (2016)
      Among the many applications for carbon nanotubes (CNTs), their use in medicine has drawn special attention due to their potential for a variety of therapeutic and diagnostic applications. As progress toward clinical ...
    • Intensive Atomization Energy: Re-Thinking a Metric for Electronic Structure Theory Methods 

      Perdew, John P.; Sun, Jianwei; Garza, Alejandro J.; Scuseria, Gustavo E. (2016)
      The errors in atomization energies (AE) of molecules have long been used to measure the errors of wavefunction or density functional methods for electronic structure calculations. In particular, the G3 set of Pople and ...
    • High Chromaticity Aluminum Plasmonic Pixels for Active Liquid Crystal Displays 

      Olson, Jana; Manjavacas, Alejandro; Basu, Tiyash; Huang, Da; Schlather, Andrea E.; Zheng, Bob; Halas, Naomi; Nordlander, Peter; Link, Stephan (2016)
      Chromatic devices such as flat panel displays could, in principle, be substantially improved by incorporating aluminum plasmonic nanostructures instead of conventional chromophores that are susceptible to photobleaching. ...
    • Structural and Optical Properties of Discrete Dendritic Pt Nanoparticles on Colloidal Au Nanoprisms 

      Leary, Rowan K.; Kumar, Anjli; Straney, Patrick J.; Collins, Sean M.; Yazdi, Sadegh; Dunin-Borkowski, Rafal E.; Midgley, Paul A.; Millstone, Jill E.; Ringe, Emilie (2016)
      Catalytic and optical properties can be coupled by combining different metals into nanoscale architectures where both the shape and composition provide fine-tuning of functionality. Here, discrete, small Pt nanoparticles ...
    • Synthesis and Photostability of Unimolecular Submersible Nanomachines: Toward Single-Molecule Tracking in Solution 

      García-López, Víctor; Jeffet, Jonathan; Kuwahara, Shunsuke; Martí, Angel A.; Ebenstein, Yuval; Tour, James M. (2016)
      The synthesis and photophysical properties of a series of photostable unimolecular submersible nanomachines (USNs) are reported as a first step toward the analysis of their trajectories in solution. The USNs have a ...
    • Collective dynamics of processive cytoskeletal motors 

      McLaughlin, R. Tyler; Diehl, Michael R.; Kolomeisky, Anatoly B. (2016)
      Major cellular processes are supported by various biomolecular motors that usually operate together as teams. We present an overview of the collective dynamics of processive cytokeletal motor proteins based on recent ...
    • New Model for Understanding Mechanisms of Biological Signaling: Direct Transport via Cytonemes 

      Teimouri, Hamid; Kolomeisky, Anatoly B. (2016)
      Biological signaling is a crucial natural process that governs the formation of all multicellular organisms. It relies on efficient and fast transfer of information between different cells and tissues. It has been presumed ...
    • Carbon nanotube fiber terahertz polarizer 

      Zubair, Ahmed; Tsentalovich, Dmitri E.; Young, Colin C.; Heimbeck, Martin S.; Everitt, Henry O.; Pasquali, Matteo; Kono, Junichiro (2016)
      Conventional, commercially available terahertz (THz) polarizers are made of uniformly and precisely spaced metallic wires. They are fragile and expensive, with performance characteristics highly reliant on wire diameters ...
    • Point-of-Care Technologies for Precision Cardiovascular Care and Clinical Research 

      King, Kevin R.; Grazette, Luanda P.; Paltoo, Dina N.; McDevitt, John T.; Sia, Samuel K.; Barrett, Paddy M.; Apple, Fred S.; Gurbel, Paul A.; Weissleder, Ralph; Leeds, Hilary; Iturriaga, Erin J.; Rao, Anupama K.; Adhikari, Bishow; Desvigne-Nickens, Patrice; Galis, Zorina S.; Libby, Peter (2016)
      Point-of-care technologies (POC or POCT) are enabling innovative cardiovascular diagnostics that promise to improve patient care across diverse clinical settings. The National Heart, Lung, and Blood Institute convened a ...
    • Chiral and Achiral Nanodumbbell Dimers: The Effect of Geometry on Plasmonic Properties 

      Smith, Kyle W.; Zhao, Hangqi; Zhang, Hui; Sánchez -Iglesias, Ana; Grzelczak, Marek; Wang, Yumin; Chang, Wei-Shun; Nordlander, Peter; Liz-Marzán, Luis; Link, Stephan (2016)
      Metal nanoparticles with a dumbbell-like geometry have plasmonic properties similar to those of their nanorod counterparts, but the unique steric constraints induced by their enlarged tips result in distinct geometries ...
    • Turning On and Off Photoinduced Electron Transfer in Fluorescent Proteins by π-Stacking, Halide Binding, and Tyr145 Mutations 

      Bogdanov, Alexey M.; Acharya, Atanu; Titelmayer, Anastasia V.; Mamontova, Anastasia V.; Bravaya, Ksenia B.; Kolomeisky, Anatoly B.; Lukyanov, Konstantin A.; Krylov, Anna I. (2016)
      Photoinduced electron transfer in fluorescent proteins from the GFP family can be regarded either as an asset facilitating new applications or as a nuisance leading to the loss of optical output. Photooxidation commonly ...
    • Protein Frustratometer 2: a tool to localize energetic frustration in protein molecules, now with electrostatics 

      Parra, R. Gonzalo; Schafer, Nicholas P.; Radusky, Leandro G.; Tsai, Min-Yeh; Guzovsky, A. Brenda; Wolynes, Peter G.; Ferreiro, Diego U. (2016)
      The protein frustratometer is an energy landscape theory-inspired algorithm that aims at localizing and quantifying the energetic frustration present in protein molecules. Frustration is a useful concept for analyzing ...
    • Notch-Jagged signalling can give rise to clusters of cells exhibiting a hybrid epithelial/mesenchymal phenotype 

      Boareto, Marcelo; Jolly, Mohit Kumar; Goldman, Aaron; Pietilä, Mika; Mani, Sendurai A.; Sengupta, Shiladitya; Ben-Jacob, Eshel; Levine, Herbert; Onuchic, José N. (2016)
      Metastasis can involve repeated cycles of epithelial-to-mesenchymal transition (EMT) and its reverse mesenchymal-to-epithelial transition. Cells can also undergo partial transitions to attain a hybrid epithelial/mesenchymal ...