Now showing items 1-20 of 1345

    • The anti-apoptotic proteins NAF-1 and iASPP interact to drive apoptosis in cancer cells 

      Iosub-Amir, Anat; Bai, Fang; Sohn, Yang-Sung; Song, Luhua; Tamir, Sagi; Marjault, Henri-Baptiste; Mayer, Guy; Karmi, Ola; Jennings, Patricia A.; Mittler, Ron; Onuchic, José N.; Friedler, Assaf; Nechushtai, Rachel (2019)
    • Solar thermal desalination as a nonlinear optical process 

      Dongare, Pratiksha D.; Alabastri, Alessandro; Neumann, Oara; Nordlander, Peter; Halas, Naomi J. (2019)
      The ever-increasing global need for potable water requires practical, sustainable approaches for purifying abundant alternative sources such as seawater, high-salinity processed water, or underground reservoirs. Evaporation-based ...
    • Ligand-Dependent Colloidal Stability Controls the Growth of Aluminum Nanocrystals 

      Clark, Benjamin D.; DeSantis, Christopher J.; Wu, Gang; Renard, David; McClain, Michael J.; Bursi, Luca; Tsai, Ah-Lim; Nordlander, Peter; Halas, Naomi J. (2019)
      The precise size- and shape-controlled synthesis of monodisperse Al nanocrystals remains an open challenge, limiting their utility for numerous applications that would take advantage of their size and shape-dependent optical ...
    • Impact of chemical interface damping on surface plasmon dephasing 

      Therrien, Andrew J.; Kale, Matthew J.; Yuan, Lin; Zhang, Chao; Halas, Naomi J.; Christopher, Phillip (2019)
      The excellent light harvesting ability of plasmonic nanoparticles makes them promising materials for a variety of technologies that rely on the conversion of photons to energetic charge carriers. In such applications, ...
    • Toward a Nanophotonic Nose: A Compressive Sensing-Enhanced, Optoelectronic Mid-Infrared Spectrometer 

      Cerjan, Benjamin; Halas, Naomi J. (2019)
      Infrared (IR) spectroscopy has been a central tool for chemical analysis for decades, useful in a wide range of fields for the detection and quantification of molecules based on their unique vibrational resonances. ...
    • Trade-Offs between Error, Speed, Noise, and Energy Dissipation in Biological Processes with Proofreading 

      Mallory, Joel D.; Kolomeisky, Anatoly B.; Igoshin, Oleg A. (2019)
      High accuracy of major biological processes relies on the ability of the participating enzymatic molecules to preferentially select the correct substrate from a pool of chemically similar substrates by activating the ...
    • Theoretical Analysis of Run Length Distributions for Coupled Motor Proteins 

      Wang, Qian; Kolomeisky, Anatoly B. (2019)
      Motor proteins, also known as biological molecular motors, play important roles in various biological processes. In recent years, properties of single-motor proteins have been intensively investigated using multiple ...
    • Plasmonic Photocatalysis of Nitrous Oxide into N2 and O2 Using Aluminum–Iridium Antenna–Reactor Nanoparticles 

      Swearer, Dayne F.; Robatjazi, Hossein; Martirez, John Mark P.; Zhang, Ming; Zhou, Linan; Carter, Emily A.; Nordlander, Peter; Halas, Naomi J. (2019)
      Photocatalysis with optically active “plasmonic” nanoparticles is a growing field in heterogeneous catalysis, with the potential for substantially increasing efficiencies and selectivities of chemical reactions. Here, the ...
    • 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 ...
    • Efficient Second Harmonic Generation in a Hybrid Plasmonic Waveguide by Mode Interactions 

      Shi, Junjun; Li, Yang; Kang, Meng; He, Xiaobo; Halas, Naomi J.; Nordlander, Peter; Zhang, Shunping; Xu, Hongxing (2019)
      Developing highly efficient nanoscale coherent light sources is essential for advances in technological applications such as integrated photonic circuits, bioimaging, and sensing. An on-chip wavelength convertor based on ...
    • Toroidal Dipole-Enhanced Third Harmonic Generation of Deep Ultraviolet Light Using Plasmonic Meta-atoms 

      Ahmadivand, Arash; Semmlinger, Michael; Dong, Liangliang; Gerislioglu, Burak; Nordlander, Peter; Halas, Naomi J. (2019)
      The harmonic generation of light with plasmonic and all-dielectric nanostructures has gained much recent interest. This approach is especially promising for short wavelength (i.e., ultraviolet (UV)) generation, where ...
    • Low-carrier density and fragile magnetism in a Kondo lattice system 

      Rai, Binod K.; Oswald, Iain W.H.; Ban, Wenjing; Huang, C.-L.; Loganathan, V.; Hallas, A.M.; Wilson, M.N.; Luke, G.M.; Harriger, L.; Huang, Q.; Li, Y.; Dzsaber, Sami; Chan, Julia Y.; Wang, N.L.; Paschen, Silke; Lynn, J.W.; Nevidomskyy, Andriy H.; Dai, Pengcheng; Si, Q.; Morosan, E. (2019)
      Kondo-based semimetals and semiconductors are of extensive current interest as a viable platform for strongly correlated states in the dilute carrier limit. It is thus important to explore the routes to understand such ...
    • Weaker nematic phase connected to the first order antiferromagnetic phase transition inᅠSrFe2As2ᅠcompared toᅠBaFe2As2 

      Tam, David W.; Wang, Weiyi; Zhang, Li; Song, Yu; Zhang, Rui; Carr, Scott V.; Walker, H.C.; Perring, Toby G.; Adroja, D.T.; Dai, Pengcheng (2019)
      Understanding the nature of the electronic nematic phase in iron pnictide superconductors is important for elucidating its impact on high-temperature superconductivity. Here we use transport and inelastic neutron scattering ...
    • Toward the Mott state with magnetic cluster formation in heavily Cu-doped NaFe1−xCuxAs 

      Xin, Yizhou; Stolt, Ingrid; Lee, Jeongseop A.; Song, Yu; Dai, Pengcheng; Halperin, W.P. (2019)
      Recent neutron-scattering measurements indicate that NaFe1−xCuxAs forms an antiferromagnetic stripe phase near x≈0.5 in a Mott insulating state. This copper concentration is well in excess of that required for supercondu ...
    • Surface terminations and layer-resolved tunneling spectroscopy of the 122 iron pnictide superconductors 

      Li, Ang; Yin, Jia-Xin; Wang, Jihui; Wu, Zheng; Ma, Jihua; Sefat, Athena S.; Sales, Brian C.; Mandrus, David G.; McGuire, Michael A.; Jin, Rongying; Zhang, Chenglin; Dai, Pengcheng; Lv, Bing; Chu, Ching-Wu; Liang, Xuejin; Hor, P.-H.; Ting, C.-S.; Pan, Shuheng H. (2019)
      The surface terminations of 122-type alkaline earth metal iron pnictides AEFe2As2(AE=Ca,Ba) are investigated with scanning tunneling microscopy/spectroscopy. Cleaving these crystals at a cryogenic temperature yields a large ...
    • Coexistence of Ferromagnetic and Stripe Antiferromagnetic Spin Fluctuations in SrCo2As2 

      Li, Yu; Yin, Zhiping; Liu, Zhonghao; Wang, Weiyi; Xu, Zhuang; Song, Yu; Tian, Long; Huang, Yaobo; Shen, Dawei; Abernathy, D.L.; Niedziela, J.L.; Ewings, R.A.; Perring, T.G.; Pajerowski, Daniel M.; Matsuda, Masaaki; Bourges, Philippe; Mechthild, Enderle; Su, Yixi; Dai, Pengcheng (2019)
      We use inelastic neutron scattering to study energy and wave vector dependence of spin fluctuations in SrCo2As2, derived from SrFe2−xCoxAs2 iron pnictide superconductors. Our data reveal the coexistence of antiferromagnetic ...
    • Possible Mott transition in layered Sr2Mn3As2O2ᅠsingle crystals 

      Chen, Chih-Wei; Wang, Weiyi; Loganathan, Vaideesh; Carr, Scott V.; Harriger, Leland W.; Georgen, C.; Nevidomskyy, Andriy H.; Dai, Pengcheng; Huang, C.-L.; Morosan, E. (2019)
      Single crystals of Sr2Mn3As2O2 have been grown for the first time, for which we show a possible layer-selective Mott insulator behavior. This compound stands out as a hybrid structure of MnO2 and MnAs layers, analogously ...
    • Gravitational perturbations from oscillons and transients after inflation 

      Lozanov, Kaloian D.; Amin, Mustafa A. (2019)
      We study the scalar and tensor perturbations generated by the fragmentation of the inflaton condensate into oscillons or transients after inflation, using nonlinear classical lattice simulations. Without including the ...
    • 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 ...