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Topic Area: Nanotechnology

Displaying records 91 to 100 of 383 records.
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91. Surface-directed Growth of Nanowires: A Scalable Platform for Nanodevice Fabrication
Topic: Nanotechnology
Published: 7/11/2011
Author: Babak Nikoobakht
Abstract: Optical lithography continues to be the popular technique for further miniaturization of electronic circuitry and its components. However, as further device miniaturization continues, complexity of pattern generation and cost increase; therefore th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908140

92. Small fluctuations in epitaxial growth via conservative noise
Topic: Nanotechnology
Published: 7/7/2011
Authors: Paul Nathan Patrone, Rongrong Wang, Dionisios Margetis
Abstract: We study the combined effect of growth (material deposition from above) and nearest-neighbor entropic and force-dipole interactions in a stochastically perturbed system of N line defects (steps) on a vicinal crystal surface in 1+1 dimensions. Firs ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908523

93. Fate of nanoparticles during life cycle of polymer nanocomposites
Topic: Nanotechnology
Published: 7/6/2011
Authors: Tinh Nguyen, Bastien T. Pellegrin, Coralie Bernard, Xiaohong Gu, Justin M Gorham, Paul E Stutzman, Deborah L Stanley, Walter Eric Byrd, John W Hettenhouser, Joannie W Chin
Abstract: Nanoparticles are increasingly used in consumer and structural polymeric products to enhance a variety of properties. Under the influences of environmental factors (e.g., ultraviolet, moisture, temperature) and mechanical actions (e.g., scratching, v ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907488

94. Electrical Characterization of Photoconductive GaN Nanowire Devices from 50 MHz to 33 GHz
Topic: Nanotechnology
Published: 7/1/2011
Authors: Thomas M Wallis, Dazhen Gu, Atif Imtiaz, Pavel Kabos, Paul Timothy Blanchard, Norman A Sanford, Kristine A Bertness, Christpher Smith
Abstract: The electrical response of two-port., photoconductive GaN nanowire devices was measured from 50 MHz to 33 GHz. The admittance of individual contacted nanowires showed an increase on the order of 10% throughout the measured frequency range after expo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903093

95. Evaluating the characteristics of multiwall carbon nanotubes
Topic: Nanotechnology
Published: 7/1/2011
Authors: John H Lehman, M. Terrones, Elisabeth Mansfield, Katie Hurst, Vincent Muenier
Abstract: During the past 20 years, multiwall carbon nanotubes (MWCNTs) have become an important industrial material. Hundreds of tons are produced each year. This review is a survey of the scientific literature, motivated by industrial requirements and guidel ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907346

96. One-dimensional p-n heterojunctions of zinc oxide on gallium nitride: A structural characterization
Topic: Nanotechnology
Published: 7/1/2011
Authors: Babak Nikoobakht, John E Bonevich, Andrew A Herzing
Abstract: Recently we showed lateral growth of ZnO nanowires and nanowalls on single crystal GaN and formation of bi- and tri-directional assembly of nanowires and nanowalls using a surface-directed vapor-liquid-solid process (SVLS). Taking advantage of this ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907758

97. Guided three-dimensional catalyst folding during Metal assisted Chemical Etching of Silicon
Topic: Nanotechnology
Published: 6/28/2011
Authors: Konrad Rykaczewski, Owen J. Hildreth, Ching P. Wong, Andrei G. Fedorov, John Henry j Scott
Abstract: In order to fabricate truly complex three-dimensional (3D) silicon nanostructures fabrication methods which expand beyond the concept of creation of straight 3D structures by direct extension of two dimensional (2D) patterns need to be developed. In ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908006

98. Hydrodynamic Fractionation of Finite Size Nano Gold Clusters
Topic: Nanotechnology
Published: 6/15/2011
Authors: De-Hao D. Tsai, Tae Joon Cho, Frank W DelRio, Julian S. Taurozzi, Michael Russel Zachariah, Vincent A Hackley
Abstract: We demonstrate a high resolution in situ experimental method for performing simultaneous size-classification and characterization of functional nanoscale gold clusters (NGCs) based on asymmetric-flow field flow fractionation (AFFF). Field emission sc ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908232

99. Methodology for imaging of nano-to-microscale water condensation dynamics on complex nanostructures
Topic: Nanotechnology
Published: 6/11/2011
Authors: Konrad Rykaczewski, John Henry j Scott
Abstract: By transferring of a small part of a macroscale sample to a novel thermally insulated sample platform we are able to mitigate flooding and electron heating problems typically associated with Environmental Scanning Electron Microscopy imaging of water ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908396

100. Physicochemical characterization and in vitro hemolysis evaluation of silver nanoparticles
Topic: Nanotechnology
Published: 6/7/2011
Authors: Vytautas Reipa, Jonghoon Choi, Nam Sun Wang, Victoria M. Hitchins, Peter L. Goering, Robert Malinauskas
Abstract: In anticipation of the increased use of various forms of silver as an antimicrobial agent in medical devices, the objective of this study was to evaluate the in vitro hemolytic potential of silver nanoparticles in dilute human blood, and to relate pa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906184



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