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Topic Area: Nanomaterials
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Displaying records 111 to 120 of 154 records.
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111. Origin of Universal Optical Conductivity and Optical Stacking Sequence Identification in Multilayer Graphene
Topic: Nanomaterials
Published: 8/6/2009
Authors: Hongki Min, Allan H. MacDonald
Abstract: We predict that the optical conductivity of normal graphene multilayers is close to {sigma}^duni^=({pi}/2) e^u2^/h per layer over a broad range of frequencies. The origin of this behavior is an emergent chiral symmetry which is present in normal N-l ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902107

112. PEGylated Gold Nanorod Separation and Characterization by Asymmetric Field Flow Fractionation Based on Aspect Ratio with UV-Vis Detection
Topic: Nanomaterials
Published: 9/5/2013
Authors: Thao Minh Nguyen, Julien C. Gigault, Vincent A Hackley
Abstract: The development of highly efficient asymmetric-flow field flow fractionation (A4F) methodology for biocompatible PEGylated gold nanorods (GNR) without the need for surfactants in the mobile phase is presented. We report on the potential of A4F for r ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914165

113. PREPARATION OF NANOPARTICLE DISPERSIONS FROM POWDERED MATERIAL USING ULTRASONIC DISRUPTION
Topic: Nanomaterials
Published: 6/9/2010
Authors: Julian S. Taurozzi, Vincent A Hackley, Mark Wiesner
Abstract: This protocol is generic in nature and intended to provide relevant guidelines for the preparation of nanoparticle dispersions in liquid media by the application of ultrasonic energy. It applies specifically to source engineered nanomaterials (ENM) o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905633

114. Phonon dephasing and population decay dynamics of the G-band of semiconducting single-wall carbon nanotubes
Topic: Nanomaterials
Published: 10/19/2010
Authors: Young Jong Lee, Sapun Parekh, Jeffrey A Fagan, Marcus T Cicerone
Abstract: The dephasing and population decay dynamics of optical phonons are studied for semiconducting single-wall carbon nanotubes (SWCNTs) using broadband time-resolved coherent anti-Stokes Raman scattering (TR-CARS) and time-resolved incoherent anti-Stokes ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905809

115. Photo-induced Surface Transformation of Silica Nanocomposites
Topic: Nanomaterials
Published: 6/22/2012
Authors: Justin M Gorham, Tinh T. Nguyen, Coralie Bernard, Deborah L Stanley, Richard D Holbrook
Abstract: The physicochemical, UV-induced surface modifications to silica nanoparticle (SiNP) - epoxy composites have been investigated. The silica nanocomposites (SiNCs) were prepared using a two-part epoxy system with 10 % mass fraction of SiNPs and expose ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910637

116. Piezoelectric Response of Nanoscale PbTiO3 in Composite PbTiO3-CoFe2O4 Epitaxial Films
Topic: Nanomaterials
Published: 8/15/2008
Authors: Igor Levin, Tan Zhuopeng, Alexander Roytburd, Katyayani Seal, Brian Rodriguez, Stephen Jesse, Sergei Kalinin, Art Baddorf
Abstract: Piezoelectric properties of PbTiO3 in 1/3PbTiO3-2/3CoFe2O4 transverse epitaxial nanostructures on differently oriented SrTiO3 were analyzed using conventional and switching-spectroscopy piezoelectric force microscopy. The results confirmed that the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854134

117. Polymer Viscoelasticity and Residual Stress Effects on Nanoimprint Lithography
Topic: Nanomaterials
Published: 5/24/2007
Authors: Yifu Ding, Hyun W. Ro, Jack F Douglas, Ronald Leland Jones, Daniel R. Hines, Alamgir Karim, Christopher L Soles
Abstract: We examine the influence of viscoelastic effects on the stability of nanoimprinted polymer films. The decay of features for polymers below the critical entanglement molecular mass at elevated temperatures is determined by simple surface tension and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852665

118. Predicting Microstructure Development During Casting of Drug Eluting Coatings
Topic: Nanomaterials
Published: 9/19/2010
Authors: David M. Saylor, Jonathan E Guyer, Daniel Wheeler, James A Warren
Abstract: We have devised a novel diffuse interface formulation to model the development of chem- ical and physical inhomogeneities, i.e. microstructure, during the process of casting drug eluting coatings. These inhomogeneities, which depend on the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905206

119. Preparation and Characterization of Patchy Particles
Topic: Nanomaterials
Published: 11/14/2008
Authors: Thuy Chastek, Steven D Hudson, Vincent A Hackley
Abstract: The self-assembled organization of partilces depends on the symmetry of their interactions, and strides are being made in producing nanoaparticles of controlled shape and functionalization. This paper describes the use of particles adsorption to cont ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852780

120. Propensity of Nanoparticles to Release from Residential Soft Furnishings
Topic: Nanomaterials
Published: 6/21/2010
Authors: Rick D Davis, Yeon S. Kim, Marc R. Nyden, Richard H. Harris Jr.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904598



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