Recent Submissions

  • tRNA modification detection using graphene nanopores: A simulation study 

    Onanuga, Khadijah; Begley, Thomas J.; Chen, Alan A.; Ranganathan, Srivathsan V. (MDPI AG, 2017-08-25)
    There are over 100 enzyme-catalyzed modifications on transfer RNA (tRNA) molecules. The levels and identity of wobble uridine (U) modifications are affected by environmental conditions and diseased states, making wobble U ...
  • A novel impedance biosensor for measurement of trans-epithelial resistance in cells cultured on nanofiber scaffolds 

    Schramm, Robert A.; Koslow, Matthew H.; Nelson, Deirdre A.; Larsen, Melinda; Castracane, James (MDPI AG, based in Basel, Switzerland, 2017)
    Nanofibrous scaffolds provide high surface area for cell attachment, and resemble the structure of the collagen fibers which naturally occur in the basement membrane and extracellular matrix. A label free and non-destructive ...
  • Pulse width and height modulation for multi-level resistance in bi-layer TaOx based RRAM 

    Alamgir, Zahiruddin; Beckmann, Karsten; Holt, Joshua; Cady, Nathaniel C. (AIP Publishing, 2017-08-11)
    Mutli-level switching in resistive memory devices enables a wide range of computational paradigms, including neuromorphic and cognitive computing. To this end, we have developed a bilayer tantalum oxide based resistive ...
  • Why contagious yawning does not (yet) equate to empathy 

    Massen, Jorg J. M.; Gallup, Andrew C. (Neuroscience and Biobehavioral Reviews, 2017-09)
    Various studies and researchers have proposed a link between contagious yawning and empathy, yet the conceptual basis for the proposed connection is not clear and deserves critical evaluation. Therefore, we systematically ...
  • Electronic structure, excitation properties, and chemical transformations of extreme ultra-violet resist materials 

    Rangan, Sylvie; Bartynski, Robert; Narasimhan, Amrit; Brainard, Robert (American Institute of Physics, 2017-07-12)
    The electronic structure of extreme ultra violet resist materials and of their individual components, two polymers and two photoacid generators (PAGs), is studied using a combination of x-ray and UV photoemission spectroscopies, ...
  • Investigating efficient methods for computing four-quark correlation functions 

    Abdel-Rehim, Abdou; Alexandrou, Constantia; Berlin, Joshua; Dalla Brida, Mattia; Finkenrath, Jacob; Wagner, Marc (Computer Physics Communications, 2017-07-11)
    We discuss and compare the efficiency of various methods, combinations of point-to-all propagators, stochastic timeslice-to-all propagators, the one-end trick and sequential propagators, to compute two-point correlation ...
  • Large-scale ex vivo generation of human neutrophils from cord blood CD34+ cells 

    Jie, Zhenwang; Zhang, Yu; Wang, Chen; Shen, Bin; Guan, Xin; Ren, Zhihua; Ding, Xinxin; Dai, Wei; Jiang, Yongping (PLoS ONE, 2017-07-11)
    Conventional high-dose chemotherapy frequently leads to severe neutropenia, during which patients experience a high risk of infection. Although support care with donor’s neutrophils is possible this choice is largely ...
  • Variation in Attitudes toward Being a Mother by Race/Ethnicity and Education among Women in the United States 

    Tichenor, Veronica; McQuillan, Julia; Greil, Arthur L.; Bedrous, Andrew V.; Clark, Amy; Shreffler, Karina M. (Sociological Perspectives, 2017)
    Do differences in experiences of motherhood (e.g., number of children, age at first child, and relationship type) by race/ethnicity and social class mean that attitudes toward motherhood also vary by social location? We ...
  • Understanding magnetic focusing in graphene p-n junctions through quantum modeling 

    LaGasse, Samuel W.; Lee, Ji Ung (Physical Review B, 2017-04-21)
    We present a quantum model which provides enhanced understanding of recent transverse magnetic focusing experiments on graphene p-n junctions. Spatially resolved flow maps of local particle current density show quantum ...
  • Strong photoluminescence enhancement of silicon oxycarbide through defect engineering 

    Ford, Brian; Tabassum, Natasha; Nikas, Vasileios; Gallis, Spyros (Materials, 2017-04-23)
    The following study focuses on the photoluminescence (PL) enhancement of chemically synthesized silicon oxycarbide (SiCxOy) thin films and nanowires through defect engineering via post-deposition passivation treatments. ...
  • Scalable fabrication of coupled NV center - photonic crystal cavity systems by self-aligned N ion implantation 

    Schröder, Tim; Walsh, Michael; Zheng, Jiabao; Mouradian, Sara L.; Li, Luozhou; Malladi, Girish; Bakhru, Hassaram; Lu, Ming; Stein, Aaron; Heuck, Mikkel; Englund, Dirk (2017, 2017)
    Towards building large-scale integrated photonic systems for quantum information processing, spatial and spectral alignment of single quantum systems to photonic nanocavities is required. Here, we demonstrate spatially ...
  • Safety and efficacy of megakaryocytes induced from hematopoietic stem cells in murine and nonhuman primate models 

    Guan, Xin; Qin, Meng; Zhang, Yu; Wang, Yanan; Shen, Bin; Ren, Zhihua; Ding, Xinxin; Dai, Wei; Jiang, Yongping (Stem Cells Translational Medicine, 2016)
    Because of a lack of platelet supply and a U.S. Food and Drug Administration-approved platelet growth factor, megakaryocytes have emerged as an effective substitute for alleviating thrombocytopenia. Here, we report the ...
  • Detection of silicide formation in nanoscale visualization of interface electrostatics 

    Nolting, Westly; Durcan, Chris; LaBella, Vincent P. (Applied Physics Letters, 2017)
    The ability to detect localized silicide formation at a buried metal semiconductor Schottky interface is demonstrated via nanoscale measurements of the electrostatic barrier. This is accomplished by mapping the Schottky ...
  • Measurement of periodicity and strain in arrays of single crystal silicon and pseudomorphic Si1-xGex/Si fin structures using x-ray reciprocal space maps 

    Medikonda, Manasa; Muthinti, Gangadhara R.; Fronheiser, Jody; Kamineni, Vimal; Wormington, Matthew; Matney, Kevin; Adam, Thomas N.; Karapetrova, Evguenia; Diebold, Alain C. (Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, 2014)
    Characterization of the periodicity and strain state of an array of lithographically patterned silicon and silicon-germanium alloy on silicon fins using reciprocal space mapping of Bragg diffraction peaks is presented. ...
  • Engineering crystallinity of atomic layer deposited gate stacks containing ultrathin HfO2 and a Ti-based metal gate: Effects of postmetal gate anneal and integration schemes 

    Consiglio, Steven; Tapily, Kandabara; Clark, Robert D.; Hasegawa, Toshio; Amano, Fumitaka; Leusink, Gert J.; Jordan-Sweet, Jean; Vasić, Relja; Medikonda, Manasa; Diebold, Alain C. (Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, 2014)
    In this study, the authors examined the effects of different annealing schemes on crystallinity in atomic layer deposition (ALD) grown Ti-containing metal gates and ultrathin ALD HfO2 high-k dielectric layers, and corresponding ...
  • Optical properties of pseudomorphic Ge1−xSnx (x = 0 to 0.11) alloys on Ge(001) 

    Medikonda, Manasa; Muthinti, Gangadhara R.; Vasić, Relja; Adam, Thomas N.; Reznicek, Alexander; Wormington, Matthew; Malladi, Girish; Kim, Yihwan; Huang, Yi-Chiau; Diebold, Alain C. (Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, 2014)
    The characterization of the optical properties of pseudomorphic Ge1-xSnx/Ge/Si (x=0 to 0.11) alloys from the IR to UV is presented. The Ge1-xSnx alloys were epitaxially grown on relaxed Ge grown on Si. Rutherford backscattering ...
  • Enhancing one dimensional sensitivity with plasmonic coupling 

    O’Mullane, Samuel; Peterson, Brennan; Race, Joseph; Keller, Nick; Diebold, Alain C. (Optics Express, 2014)
    In this paper, we propose a cross-grating structure to enhance the critical dimension sensitivity of one dimensional nanometer scale metal gratings. Making use of the interaction between slight changes in refractive index ...
  • Enhancing one dimensional sensitivity with plasmonic coupling: Erratum 

    O’Mullane, Samuel; Peterson, Brennan; Race, Joseph; Keller, Nick; Diebold, Alain C. (Optics Express, 2016)
    Our manuscript contained data from unconverged rigorous coupled wave approximation (RCWA) simulations that resulted in incorrect description of minima locations. Here, converged RCWA simulations are presented with corrected ...
  • Metrology for block copolymer directed self-assembly structures using Mueller matrixbased scatterometry 

    Dixit, Dhairya J.; Kamineni, Vimal; Farrell, Richard; Hosler, Erik R.; Preil, Moshe; Race, Joseph; Peterson, Brennan; Diebold, Alain C. (Journal of Micro/Nanolithography, MEMS, and MOEMS, 2015)
    Patterning based on directed self-assembly (DSA) of block copolymer (BCP) has been demonstrated to be a cost-effective manufacturing technique for advanced sub-20-nm structures. This paper describes the application of ...
  • Pulsed-N2 assisted growth of 5-20 nm thick β−W films 

    Narasimham, Avyaya J.; Green, Avery; Matyi, Richard J.; Khare, Prasanna; Vo, Tuan; Diebold, Alain; LaBella, Vincent P. (AIP Advances, 2015)
    A technique to deposit 5-20 nm thick β-phase W using a 2-second periodic pulse of 1 sccm-N2 gas on Si(001) and SiN(5 nm)/Si(001) substrates is reported. Resistivity, X-ray photoelectron spectroscopy and X-ray reflectivity ...

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