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Topic Area: Nanomaterials
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Displaying records 21 to 30 of 152 records.
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21. Characterization of InGaN quantum disks in GaN nanowires
Topic: Nanomaterials
Published: 3/4/2014
Authors: Alexana Roshko, Roy Howard Geiss, John B Schlager, Matthew David Brubaker, Kristine A Bertness, Norman A Sanford, Todd E Harvey
Abstract: Catalyst-free GaN nanowires with InGaN quantum disks (QDs) were characterized by scanning/transmission elec-tron microscopy (S/TEM) and photoluminescence. A va-riety of structures, from QDs with large strain fields to apparently strain free QDs were ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914871

22. Characterizing the Dynamic Behavior of Nano-TiO2 Agglomerates in Suspensions by Photocorrelation Spectroscopy
Topic: Nanomaterials
Published: 4/22/2009
Authors: I-Hsiang Tseng, Stephanie S Watson, Li Piin Sung
Abstract: Metal oxide nanoparticles are small but easily form agglomerates in suspension, depending on the strength of particle-particle and particle-media interactions. To understand the agglomeration behavior of nanoparticles in media and relate to it to pro ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902458

23. Characterizing the Mechanical Properties and Degradation of Thin Polymer Membranes
Topic: Nanomaterials
Published: 8/28/2011
Authors: Christopher M Stafford, Jun Y. Chung, Junghyun Lee
Abstract: The elasticity, strength, and toughness of thin polymer membranes are of considerable interest since direct knowledge of these key mechanical properties can provide insight into performance, durability, and underlying degradation mechanisms that occu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908218

24. Colorimetric Detection with Aptamer-Gold Nanoparticle Conjugates: Effect of Aptamer Length on Response
Topic: Nanomaterials
Published: 9/14/2012
Authors: Jorge L Chavez, Robert I. MacCuspie, Nancy Kelley-Loughnane, Morley O Stone
Abstract: A riboflavin binding aptamer (RBA) was used in combination with gold nanoparticles (AuNPs) to detect riboflavin in vitro. The RBA-AuNPs responded colorimetrically to the presence of riboflavin and this response could be followed by the naked eye. We ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909910

25. Combinatorial Screening of Osteoblast Response to 3D Calcium Phosphate/Poly(e-caprolactone) Scaffolds Using Gradients and Arrays
Topic: Nanomaterials
Published: 12/31/2010
Authors: Carl George Simon Jr, Kaushik Chatterjee, Laurence Chung Lung Chow, Limin Sun, Marian F Young
Abstract: There is a need to improve rapid methods for screening cell-biomaterial interactions. Current methods employ a flat 2D format even though 3D scaffolds are more representative of the tissue environment in vivo and cells are responsive to topological ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906746

26. Comment on Viscoelastic properties of con ned polymer lms measured via thermal wrinkling by Edwin P. Chan, Kirt A. Page, Se Hyuk Im, Derek L. Patton, Rui Huang and Christopher M. Stafford, Soft Matter (Communications), 5, 4638 4641 (2009).
Topic: Nanomaterials
Published: 1/11/2011
Authors: Paul A. O'Connell, Greg B. McKenna, Edwin P Chan, Christopher M Stafford
Abstract: Recently Chan et al. published a paper describing a method to use the wrinkling of a thin elastic film on which is adhered a thin polymer film to extract the viscoelastic properties of the polymer. Results were presented for the rubbery plateau modu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905903

27. Comparative Measures of Single Wall Carbon Nanotube Dispersion
Topic: Nanomaterials
Published: 9/14/2006
Authors: Jeffrey A Fagan, Brian Landi, Idan Mandelbaum, Vardhan Bajpai, Barry J. Bauer, Kalman D Migler, Jeffrey Ray Simpson, Angela R Hight Walker, Ryan Raffaelle, Erik K. Hobbie
Abstract: Model polymer composites of DNA wrapped single-wall carbon nanotubes (SWNTs) dispersed in polyacrylic acid are used for a systematic comparison of the different metrologies currently used to evaluate SWNT dispersion. Application of a pH-controlled v ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852660

28. Compressive stress effect on the radial elastic modulus of oxidized Si nanowires
Topic: Nanomaterials
Published: 3/23/2010
Authors: Gheorghe Stan, Sergiy Krylyuk, Albert Davydov, Robert Francis Cook
Abstract: Detailed understanding and optimal control of the properties of Si nanowires are essential steps in developing Si nanoscale circuitry. In this work, we have investigated mechanical properties of as-grown and oxidized Si nanowires as a function of the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904727

29. Controlling Foam Flammability and Mechanical Behavior by Tailoring the Composition of Clay-Based Multilayer Nanocoatings
Topic: Nanomaterials
Published: 9/23/2013
Authors: Yu-Chin Li, Yeon Seok Kim, John R Shields, Rick D Davis
Abstract: This is the most comprehensive evaluation of Layer-by-Layer (LbL) coatings intended to reduce the flammability of polymeric materials. Through a systematic variation of the coating recipe, an ideal combination of the coating attributes was ide ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913643

30. Controlling the size and the activity of Fe particles for synthesis of carbon nanotubes
Topic: Nanomaterials
Published: 11/1/2012
Authors: See-Wee Chee, Renu Sharma
Abstract: The properties of carbon nanotubes (CNTs) are controlled by their structure and morphology. Therefore, their selective synthesis, using catalytic chemical vapor deposition, requires precise control on a number of parameters including the size and act ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909566



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