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You searched on: Topic Area: Nanomaterials

Displaying records 11 to 20 of 64 records.
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11. Nanoscale mechanics by tomographic contact resonance atomic force microscopy
Topic: Nanomaterials
Published: 1/23/2014
Authors: Gheorghe Stan, Santiago Solares, Bede Pittenger, Natalia Erina, Chanmin Su
Abstract: We report on a quantifiable depth-dependent contact resonance AFM (CR-AFM) measurements over polystyrene-polypropylene (PS-PP) polymer blends to detail surface and sub-surface features in terms of elastic modulus and mechanical dissipation. The depth ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914282

12. Determination of nanoparticle surface coatings and nanoparticle Purity using microscale thermogravimetric analysis analysis
Topic: Nanomaterials
Published: 1/8/2014
Authors: Elisabeth Mansfield, Christopher Michael Poling, Jenifer L. (Jenifer) Blacklock, Katherine M Tyner
Abstract: The use of nanoparticles in some applications (i.e., nanomedical, nanofiltration or nanoelectronic) requires small-scale samples with well-known purities and composition. In addition, when nanoparticles are introduced into complex environments ( ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914528

13. Atom probe tomography evaporation behavior of C-axis GaN nanowires: Crystallographic, stoichiometric, and detection efficiency aspects
Topic: Nanomaterials
Published: 11/13/2013
Authors: Norman A Sanford, David R Diercks, Brian Gorman, R Kirchofer, Kristine A Bertness, Matthew David Brubaker
Abstract: The field evaporation behavior of c-axis GaN nanowires was explored in two different laser-pulsed atom probe tomography (APT) instruments. Transmission electron microscopy imaging before and after atom probe tomography analysis was used to assist in ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915760

14. 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

15. Disparate effects of an O2 internal impurity on the elongation and quantum transport of gold and silver nanowires
Topic: Nanomaterials
Published: 8/21/2013
Authors: Shmuel Barzilai, Francesca M Tavazza, Lyle E Levine
Abstract: In this work we investigated the effects of an internal O2 impurity on the conductance of elongated gold and silver nanowires (NWs) using density functional theory (DFT) calculations. We found that the O2 interacts with these metallic NWs very diffe ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913786

16. Temperature-Programmed Electrospray-Differential Mobility Analysis for Characterization of Ligated Nanoparticles in Complex Media
Topic: Nanomaterials
Published: 8/12/2013
Authors: De-Hao D. Tsai, Frank W DelRio, John M Pettibone, Pin Ann Lin, Jiaojie Tan, Michael Russel Zachariah, Vincent A Hackley
Abstract: In this study, an electrospray-differential mobility analyzer (ES-DMA) was operated with an aerosol flow-mode, temperature-programmed approach to enhance its ability to characterize the particle size distributions (PSDs) of nanoscale particles (NPs) ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913860

17. Ab initio study of the mechanical and the transport properties of pure and contaminated silver nanowires
Topic: Nanomaterials
Published: 7/12/2013
Authors: Shmuel Barzilai, Francesca M Tavazza, Lyle E Levine
Abstract: The conductance and mechanical properties of pure and contaminated silver nanowires were studied using density functional theory (DFT) calculations. Several nanowires containing O2 on their surface were elongated along two different directions. All o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913340

18. Graphene Epitaxial Growth on SiC(0001) for Resistance Standards
Topic: Nanomaterials
Published: 6/3/2013
Authors: Mariano A. Real, Eric Lass, Fan-Hung H. Liu, Tian T. Shen, George R Jones, Johannes A Soons, David B Newell, Albert Davydov, Randolph E Elmquist
Abstract: A well-controlled technique for high-temperature epitaxial growth on 6H-SiC(0001) substrates is shown to allow development of monolayer graphene that exhibits promise for precise metrological applications. Face-to-face (FTF) and face-to-graphite (FTG ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911731

19. ,Real-worldŠ precision, bias, and between-laboratory variation for surface area measurement of a titanium dioxide nanomaterial in powder form
Topic: Nanomaterials
Published: 6/1/2013
Authors: Vincent A Hackley, Aleksandr B. Stefaniak
Abstract: Accurate characterization of nanomaterial properties is a critical component of any nanotoxicology testing strategy. Data that describes the performance of various laboratories to measure the characteristics of the same nanomaterial is scarce. We c ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912937

20. Gradient Nanofiber Scaffold Libraries for Screening Cell Response to Poly(e-caprolactone)-Calcium Phosphate Composites
Topic: Nanomaterials
Published: 3/1/2013
Authors: Carl George Simon Jr., Limin Sun, Laurence Chung Lung Chow, William Miles, Christopher K. Tison, Kaushik Chatterjee, Marian F Young, Vinoy Thomas, Murugan Ramalingam
Abstract: A 2-spinnerette approach has been developed for fabricating nanofiber scaffold gradients for use as 1) scaffold libraries for screening the effect of nanofiber properties on cell response and 2) templates for generating graded tissue interfaces. Alt ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906818



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