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Topic Area: Nanomaterials

Displaying records 31 to 40 of 148 records.
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31. Photo-induced Surface Transformation of Silica Nanocomposites
Topic: Nanomaterials
Published: 6/22/2012
Authors: Justin M Gorham, Tinh 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

32. Nano-Apatitic Composite Scaffolds for Stem Cell Delivery and Bone Tissue Engineering
Topic: Nanomaterials
Published: 4/15/2012
Authors: Hockin H. K. Xu, Carl George Simon Jr
Abstract: The need for bone defect repair and regeneration arises from trauma, disease, congenital deformity, and tumor resection. Bone fracture occurs to seven million people each year in the United States, and musculoskeletal conditions cost $215 billion ann ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904167

33. Rippling Instability of Supported Polymer Nanolines
Topic: Nanomaterials
Published: 2/21/2012
Authors: Vijaya R. Tirumala, Christopher M Stafford, Leonidas E. Ocola, Jack F Douglas, L. Mahadevan
Abstract: The swelling response of polymer line gratings supported on a rigid substrate has direct implications on their mechanical stability during pattern transfer in nanofabrication. The polymer lines, when swollen in a good solvent, undergo a rippling inst ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909469

34. Direct observation of nucleation and early stages of growth of GaN nanowires
Topic: Nanomaterials
Published: 2/15/2012
Authors: Rosa E. Diaz, Renu Sharma, Karalee Jarvis, Qinglei Zhang, Subhash Mahajan
Abstract: We report for the first time direct observations of the nucleation and early stages of growth of GaN nanowires. The nanowires were formed by exposing Au + Ga droplets to ammonia. The formation process was observed in situ, and controlled in real time ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906318

35. Direct Observation of Hydrogen Spillover in Ni-Loaded Pr-Doped Ceria
Topic: Nanomaterials
Published: 1/17/2012
Authors: Vaneet Sharma, Peter A. Crozier, Renu Sharma, James B. Adams
Abstract: Hydrogen-spillover in Ni-loaded Pr-doped ceria (PDC) was directly observed using an environmental transmission electron microscope (ETEM). Localized reduction of ceria in a H2 atmosphere was observed and attributed to gas-Ni-ceria interactions at the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908886

36. Does Shape Matter? Bioeffects of Gold Nanomaterials in a Human Skin Cell Model
Topic: Nanomaterials
Published: 1/13/2012
Authors: Nicole M Schaeublin, Laura K Braydich-Stolle, Elizabeth I Maurer, Kyoungweon Park, Robert I. MacCuspie, A R M Nabiul Afrooz, Navid B Saleh, R.A. Vaia, Saber Hussain
Abstract: Gold nanomaterials (AuNMs) have distinctive electronic and optical properties, making them ideal candidates for biological, medical, and defense applications. Therefore, it is imperative to evaluate the potential biological impact of AuNMs before em ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909150

37. Effect of elastic deformation on frictional properties of few-layer graphene
Topic: Nanomaterials
Published: 1/9/2012
Authors: Alexander Y. Smolyanitsky, Jason Philip Killgore, Vinod K Tewary
Abstract: We describe the results of Brownian dynamics (BD) simulations of an AFM tip scanned on locally suspended few-layer graphene. The effects of surface compliance and sample relaxation are directly related to the observed friction force. We demonstrate t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909404

38. Determination of Moisture Content of Single-Wall Carbon Nanotubes
Topic: Nanomaterials
Published: 10/17/2011
Authors: Rolf Louis Zeisler, Rabia Oflaz, Ralph E. Sturgeon, Rick L Paul, Brian E Lang, Jeffrey A Fagan, Joseph W Lam, Anthony Windust, P Grinberg, Benoit Simard, Christopher T. Kingston
Abstract: Several techniques were evaluated for the establishment of reliable water/moisture content of single-wall carbon nanotubes. Karl Fischer titration (KF) provides for a direct measure of the water content and was used for benchmarking against results ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908873

39. High Frequency Characterization of Contact Resistance and Conductivity of Platinum Nanowires*
Topic: Nanomaterials
Published: 10/1/2011
Authors: Kichul Kim, Paul Rice, Thomas M Wallis, Dazhen Gu, SangHyun Lim, Atif Imtiaz, Pavel Kabos, Dejan Filipovic
Abstract: Abstract, Individual platinum (Pt) nanowires (NWs) with 100 nm and 250 nm diameters, embedded in coplanar waveguide (CPW) structures are investigated. Three approaches for characterization of their contact resistance and conductivity at high frequenc ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907628

40. Graphene: A New Horizon for Modern Technology
Topic: Nanomaterials
Published: 9/15/2011
Author: Jan Obrzut
Abstract: Graphene has the potential to improve a long list of daily electronics that are the foundation of the modern computing revolution. In step with research in renewable energy, graphene can and has been used in efficient, flexible solar cells. Crossing ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909416



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