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Now showing items 1-20 of 92

    • ICTAS Connection, May 2007 

      Unknown author (Virginia Tech, 2007-05)
      This newsletter details new developments in staff and programs for ICTAS. In this issue: Message from VT President Charles Steger, SBES, and more about developing ICTAS facilities.
    • Laser-induced exfoliation of amorphous carbon layer on an individual multiwall carbon nanotube 

      Singh, G.; Rice, P.; Hurst, K. E.; Lehman, John H.; Mahajan, R. L. (AIP Publishing, 2007-07)
      Pulsed laser treatment of an individual multiwall carbon nanotube induced selective exfoliation of the amorphous carbon contamination layer. The multiwall carbon nanotube (MWCNT) was exposed to a 248 nm excimer laser. After ...
    • ICTAS Connection, August 2007 

      Unknown author (Virginia Tech, 2007-08)
      This newsletter details new developments in staff and programs for ICTAS. In this issue: Introduction of NCFL (then called ICTAS A) and initial staff introductions.
    • ICTAS Connection, November 2007 

      Unknown author (Virginia Tech, 2007-11)
      This newsletter details new developments in staff and programs for ICTAS. In this issue: Opening of the NCFL (then called ICTAS A) and the inaugural doctoral scholar class.
    • Foam-based optical absorber for high-power laser radiometry 

      Ramadurai, Krishna; Cromer, Christopher L.; Li, Xiaoyu; Mahajan, Roop L.; Lehman, John H. (Optical Society of America, 2007-12-01)
      We report damage threshold measurements of novel absorbers comprised of either liquid-cooled silicon carbide or vitreous carbon foams. The measurements demonstrate damage thresholds up to 1.6 x 104 W/cm(2) at an incident ...
    • High-performance carbon nanotube coatings for high-power laser radiometry 

      Ramadurai, Krishna; Cromer, Christopher L.; Lewis, Laurence A.; Hurst, Katherine E.; Dillon, Anne C.; Mahajan, Roop L.; Lehman, John H. (American Institute of Physics, 2008-01-01)
      Radiometry for the next generation of high-efficiency, high-power industrial lasers requires thermal management at optical power levels exceeding 10 kW. Laser damage and thermal transport present fundamental challenges for ...
    • ICTAS Connection, February 2008 

      Unknown author (Virginia Tech, 2008-02)
      This newsletter details new developments in staff and programs for ICTAS. In this issue: Microfossils, funding awards, and the arrival of Professor Padma Rajagopalan.
    • Nanodispersed DO(3)-phase nanostructures observed in magnetostrictive Fe-19% Ga Galfenol alloys 

      Bhattacharyya, Somnath; Jinschek, J. R.; Khachaturyan, Armen G.; Cao, Hu; Li, Jiefang; Viehland, Dwight D. (American Physical Society, 2008-03-10)
      Few nanometer large (<2 nm) inclusions of DO(3)-phase structure have been identified in the A2 matrix of highly magnetostrictive Fe-19% Ga alloys by high-resolution transmission electron microscopy (HRTEM). In addition, ...
    • ICTAS Connection, November 2008 

      Unknown author (Virginia Tech, 2008-11)
      This newsletter details new developments in staff and programs for ICTAS. In this issue: Updates on construction of ICTAS I, 2008 Doctoral Scholars, arrival of Chris Cornelius. 
    • Antibacterial efficacy of core-shell nanostructures encapsulating gentamicin against an in vivo intracellular Salmonella model 

      Ranjan, Ashish; Pothayee, Nikorn; Seleem, Mohammed N.; Tyler, Ronald D.; Brenseke, Bonnie; Sriranganathan, Nammalwar; Riffle, Judy S.; Kasimanickam, Ramanathan (Dove Medical Press, 2009-01-01)
      Pluronic based core-shell nanostructures encapsulating gentamicin were designed in this study. Block copolymers of (PAA(+/-)Na-b-(PEO-b-PPO-b-PEO)-b-PAA(+/-)Na) were blended with PAA(-) Na(+) and complexed with the ...
    • Large piezoresistivity phenomenon in SiCN-(La,Sr)MnO3 composites 

      Karmarkar, M.; Singh, G.; Shah, S.; Mahajan, Roop L.; Priya, Shashank (AIP Publishing, 2009-02-01)
      We present the results on SiCN-(La,Sr)MnO3 (LSMO) composites correlating the observed large piezoresistance behavior with the microstructural features and defect chemistry. Scanning electron microscopy characterization ...
    • ICTAS Connection, March 2009 

      Unknown author (Virginia Tech, 2009-03)
      This newsletter details new developments in staff and programs for ICTAS. In this issue: An agreement with Dahlgren, news on the move into ICTAS I, 2009 research awards, cancer research at VT.
    • Thermal transport in composites of self-assembled nickel nanoparticles embedded in yttria stabilized zirconia 

      Shukla, Nitin C.; Liao, Hao-Hsiang; Abiade, Jeremiah T.; Murayama, Mitsuhiro; Kumar, Dhananjay; Huxtable, S. T. (AIP Publishing, 2009-04-01)
      We investigate the effect of nickel nanoparticle size on thermal transport in multilayer nanocomposites consisting of alternating layers of nickel nanoparticles and yttria stabilized zirconia (YSZ) spacer layers that are ...
    • Overexpression and simple purification of the Thermotoga maritima 6-phosphogluconate dehydrogenase in Escherichia coli and its application for NADPH regeneration 

      Wang, Yiran; Zhang, Y. H. Percival (2009-06-04)
      Background Thermostable enzymes from thermophilic microorganisms are playing more and more important roles in molecular biology R&D and industrial applications. However, over-production of recombinant soluble proteins ...
    • Cell-free protein synthesis energized by slowly-metabolized maltodextrin 

      Wang, Yiran; Zhang, Y. H. Percival (2009-06-28)
      Background Cell-free protein synthesis (CFPS) is a rapid and high throughput technology for obtaining proteins from their genes. The primary energy source ATP is regenerated from the secondary energy source through substrate ...
    • ICTAS Doctoral Students Reception 

      Mahajan, R. L. (Institute for Critical Technology and Applied Science (ICTAS), Virginia Tech, 2009-09-01)
    • ICTAS Connection, November 2009 

      Unknown author (Virginia Tech, 2009-11)
      This newsletter details new developments in staff and programs for ICTAS. In this issue: 2009 Doctoral Scholars, new additions to the ICTAS team, first picture of the construction of ICTAS II.
    • ICTAS Scientific Report 2010 

      Unknown author (Virginia Tech, 2010)
      This 172-page report, published in 2010, compiles many of the research projects that ICTAS awards helped to fund.
    • Ted and Karyn Hume Center for National Security and Technology 

      Reed, Jeffrey Hugh (Institute for Critical Technology and Applied Science (ICTAS), Virginia Tech, 2010)
    • Interdisciplinary Research and Innovation for A Sustainable Energy Future 

      Mahajan, R. L. (Institute for Critical Technology and Applied Science (ICTAS), Virginia Tech, 2010-01-20)