Now showing items 21-40 of 506

    • A symmetrical method to obtain shear moduli from microrheology 

      Nishi, Kengo; Kilfoil, Maria L.; Schmidt, Christoph F.; MacKintosh, F.C. (2018)
      Passive microrheology typically deduces shear elastic loss and storage moduli from displacement time series or mean-squared displacements (MSD) of thermally fluctuating probe particles in equilibrium materials. Common data ...
    • NRF2 activates a partial epithelial-mesenchymal transition and is maximally present in a hybrid epithelial/mesenchymal phenotype 

      Bocci, Federico; Tripathi, Satyendra C.; Vilchez Mercedes, Samuel A.; George, Jason T.; Casabar, Julian P.; Wong, Pak Kin; Hanash, Samir M.; Levine, Herbert; Onuchic, José N.; Jolly, Mohit Kumar (2019)
      The epithelial-mesenchymal transition (EMT) is a key process implicated in cancer metastasis and therapy resistance. Recent studies have emphasized that cells can undergo partial EMT to attain a hybrid epithelial/mesenchymal ...
    • Effectiveness of metal oxide catalysts for the degradation of 1,4-dioxane 

      Heck, Kimberly N.; Wang, Yehong; Wu, Gang; Wang, Feng; Tsai, Ah-Lim; Adamson, David T.; Wong, Michael S. (2019)
      1,4-dioxane, commonly used as a solvent stabilizer and industrial solvent, is an environmental contaminant and probable carcinogen. In this study, we explored the concept of using metal oxides to activate H2O2 catalytically ...
    • Electrodeposition of Cu-SWCNT Composites 

      Raja, Pavan M. V.; Esquenazi, Gibran L.; Gowenlock, Cathren E.; Jones, Daniel R.; Li, Jianhua; Brinson, Bruce; Barron, Andrew R. (2019)
      Single walled carbon nanotubes (SWCNTs) are used as a component of a plating solution of CuSO4 for direct current electrodeposition of Cu–SWCNT composites with varying nanotube proportions without the use of either a ...
    • Biophysics at the coffee shop: lessons learned working with George Oster 

      Igoshin, Oleg A.; Chen, Jing; Xing, Jianhua; Liu, Jian; Elston, Timothy C.; Grabe, Michael; Kim, Kenneth S.; Nirody, Jasmine A.; Rangamani, Padmini; Sun, Sean X.; Wang, Hongyun; Wolgemuth, Charles (2019)
      Over the past 50 years, the use of mathematical models, derived from physical reasoning, to describe molecular and cellular systems has evolved from an art of the few to a cornerstone of biological inquiry. George Oster ...
    • Assemblies of calcium/calmodulin-dependent kinase II with actin and their dynamic regulation by calmodulin in dendritic spines 

      Wang, Qian; Chen, Mingchen; Schafer, Nicholas P.; Bueno, Carlos; Song, Sarah S.; Hudmon, Andy; Wolynes, Peter G.; Waxham, M. Neal; Cheung, Margaret S. (2019)
      The structural dynamics of the dendritic synapse, arising from the remodeling of actin cytoskeletons, has been widely associated with memory and cognition. The remodeling is regulated by intracellular Ca2+ levels. Under ...
    • Mechanistic Understanding of the Phosphorylation-Induced Conformational Rigidity at the AMPA Receptor C-terminal Domain 

      Chatterjee, Sudeshna; Dutta, Chayan; Carrejo, Nicole C.; Landes, Christy F. (2019)
      Phosphorylation at the intracellular C-terminal domain (CTD) of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors induces conformational rigidity. Such intracellular alterations to the AMPA receptor ...
    • Design of a Pd–Au Nitrite Reduction Catalyst by Identifying and Optimizing Active Ensembles 

      Li, Hao; Guo, Sujin; Shin, Kihyun; Wong, Michael S.; Henkelman, Graeme (2019)
      Nitrate (NO3–) is a ubiquitous contaminant in groundwater that causes serious public health issues around the world. Though various strategies are able to reduce NO3– to nitrite (NO2–), a rational catalyst design strategy ...
    • Near-equilibrium growth from borophene edges on silver 

      Zhang, Zhuhua; Mannix, Andrew J.; Liu, Xiaolong; Hu, Zhili; Guisinger, Nathan P.; Hersam, Mark C.; Yakobson, Boris I. (2019)
      Two-dimensional boron, borophene, was realized in recent experiments but still lacks an adequate growth theory for guiding its controlled synthesis. Combining ab initio calculations and experimental characterization, we ...
    • Redox-dependent gating of VDAC by mitoNEET 

      Lipper, Colin H.; Stofleth, Jason T.; Bai, Fang; Sohn, Yang-Sung; Roy, Susmita; Mittler, Ron; Nechushtai, Rachel; Onuchic, José N.; Jennings, Patricia A. (2019)
      MitoNEET is an outer mitochondrial membrane protein essential for sensing and regulation of iron and reactive oxygen species (ROS) homeostasis. It is a key player in multiple human maladies including diabetes, cancer, ...
    • Plasmonic nanoparticle-based epoxy photocuring: A deeper look 

      Roberts, Adam T.; Yang, Jian; Reish, Matthew E.; Alabastri, Alessandro; Halas, Naomi J.; Nordlander, Peter; Everitt, Henry O. (2019)
      Many epoxyᅠadhesivesᅠrequire high temperatures to bondᅠcomposite materials. However, oven heating severely restricts what may be attached or enclosed within composite material-based structures and greatly limits the ...
    • Hydrogen-generating behavior of Pd-decorated gold nanoparticles via formic acid decomposition 

      Zhao, Zhun; Heck, Kimberly N.; Limpornpipat, Pongsak; Qian, Huifeng; Miller, Jeffrey T.; Wong, Michael S. (2019)
      Formic acid is a promising hydrogen storage material where hydrogen is generated via metal-catalyzed decomposition. Bimetallic catalysts are active for this reaction, but the mechanism has not been fully proven. Palladium ...
    • Highly Defective UiO-66 Materials for the Adsorptive Removal of Perfluorooctanesulfonate 

      Clark, Chelsea A.; Heck, Kimberly N.; Powell, Camilah D.; Wong, Michael S. (2019)
      Perfluorooctanesulfonate (PFOS) is a persistent organic pollutant that is bioaccumulative and toxic. While its use in most countries has been restricted to certain industrial applications due to environmental and health ...
    • Catalytic Converters for Water Treatment 

      Heck, Kimberly N.; Garcia-Segura, Sergi; Westerhoff, Paul; Wong, Michael S. (2019)
      Fresh water demand is driven by human consumption, agricultural irrigation, and industrial usage and continues to increase along with the global population. Improved methods to inexpensively and sustainably clean water ...
    • Microencapsulated Photoluminescent Gold for ppb-Level Chromium(VI) Sensing 

      Yin, Yiyuan B.; Coonrod, Christian L.; Heck, Kimberly N.; Lejarza, Fernando; Wong, Michael S. (2019)
      Luminescent gold nanoclusters (Au NCs) are a promising probe material for selective chemical sensing. However, low luminescent intensity and an incomplete understanding of the mechanistic origin of the luminescence limit ...
    • Creating fluorescent quantum defects in carbon nanotubes using hypochlorite and light 

      Lin, Ching-Wei; Bachilo, Sergei M.; Zheng, Yu; Tsedev, Uyanga; Huang, Shengnan; Weisman, R. Bruce; Belcher, Angela M. (2019)
      Covalent doping of single-walled carbon nanotubes (SWCNTs) can modify their optical properties, enabling applications as single-photon emitters and bio-imaging agents. We report here a simple, quick, and controllable method ...
    • Practical access to axially chiral sulfonamides and biaryl amino phenols via organocatalytic atroposelective N-alkylation 

      Lu, Shenci; Ng, Shawn Voon Hwee; Lovato, Kaitlyn; Ong, Jun-Yang; Poh, Si Bei; Ng, Xiao Qian; Kürti, László; Zhao, Yu (2019)
      The importance of axial chirality in enantioselective synthesis has been widely recognized for decades. The practical access to certain structures such as biaryl amino phenols known as NOBINs in enantiopure form, however, ...
    • In pursuit of advanced materials from single-source precursors based on metal carbonyls 

      Whitmire, Kenton H.; Schipper, Desmond E. (2019)
      In this perspective, the development of single-source precursors and their relative advantages over multiple source approaches for the synthesis of metal pnictide solid state materials is explored. Particular efforts in ...
    • Quantitative analysis of gas phase molecular constituents using frequency-modulated rotational spectroscopy 

      Lou, Minghe; Swearer, Dayne F.; Gottheim, Samuel; Phillips, Dane J.; Simmons, Jay G. Jr.; Halas, Naomi J.; Everitt, Henry O. (2019)
      Rotational spectroscopy has been used for decades for virtually unambiguous identification of gas phase molecular species, but it has rarely been used for the quantitative analysis of molecular concentrations. Challenges ...
    • Polydopamine-Stabilized Aluminum Nanocrystals: Aqueous Stability and Benzo[a]pyrene Detection 

      Renard, David; Tian, Shu; Ahmadivand, Arash; DeSantis, Christopher J.; Clark, Benjamin D.; Nordlander, Peter; Halas, Naomi J. (2019)
      Aluminum nanocrystals have emerged as an earth-abundant material for plasmonics applications. Al nanocrystals readily oxidize in aqueous-based solutions, however, transforming into highly stratified γ-AlOOH nanoparticles ...