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Topic Area: Advanced Materials
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Displaying records 11 to 20 of 77 records.
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11. Gradient Nanofiber Scaffold Libraries for Screening Cell Response to Poly(e-caprolactone)-Calcium Phosphate Composites
Topic: Advanced Materials
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

12. Structure and Dynamics Studies of Concentrated Micrometer-Sized Colloidal Suspensions
Topic: Advanced Materials
Published: 1/7/2013
Authors: Fan Zhang, Andrew John Allen, Lyle E Levine, Jan Ilavsky, Gabrielle Gibbs Long
Abstract: We present an experimental study of the structural and dynamical properties of concentrated suspensions of a series of different sized polystyrene microspheres dispersed in glycerol for volume fraction concentrations between 10 % and 20 %. The static ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912414

13. Atom-Probe Tomographic Study of ¿/¿' Interfaces and Compositions in an Aged Co-Al-W Superalloy
Topic: Advanced Materials
Published: 12/12/2012
Authors: Eric Lass, Kil Won Moon, Maureen E Williams, Carelyn E Campbell, Ursula R Kattner, David Christophe Dunand, Peter J Bocchini, David N Seidman
Abstract: Atom-probe tomography (APT) is utilized to investigate, in a Co-9.7Al-10.8W at.% alloy aged at 900 °C for ~1000 h, the phase composition and partitioning behavior of the two-phase ɣ(f.c.c.)/ɣ'(L12) microstructure. The APT composition of the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911856

14. Nanoscale Specific Heat Capacity Measurements Using Optoelectronic Bilayer Microcantilevers
Topic: Advanced Materials
Published: 12/12/2012
Authors: Brian G. (Brian Gregory) Burke, William A Osborn, Richard Swift Gates, David A LaVan
Abstract: We describe a new technique for optically and electrically detecting and heating bilayer microcantilevers (Pt−SiNx) to high temperatures at fast heating rates for nanoscale specific heat capacity measurements. The bilayer microcantilever acts s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912233

15. An automated spin-assisted approach for molecular layer-by-layer assembly of crosslinked polymer thin films
Topic: Advanced Materials
Published: 11/28/2012
Authors: Edwin P Chan, Jung-Hyun Lee, Jun-Young Chung, Christopher M Stafford
Abstract: We present the design of an automated spin-coater that facilitates fabrication of polymer films based on molecular layer-by-layer (mLbL) assembly. Specifically, we demonstrate the synthesis of ultrathin crosslinked fully-aromatic polyamide films ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912301

16. Effect of offset values of solid freeform fabricated PCL/ß-TCP scaffolds on mechanical properties and cellular activities in bone tissue regeneration
Topic: Advanced Materials
Published: 11/1/2012
Authors: Carl George Simon Jr, GeunHyung Kim, MyungGu Yo
Abstract: Microstructures of biomedical scaffolds can greatly affect cellular activities in tissue regeneration. In particular, scaffolds used in bone tissue regeneration should have several microstructural characteristics, including high porosity, appropriate ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910879

17. Giant piezoelectricity in PMN-PT thin films: Beyond PZT
Topic: Advanced Materials
Published: 11/1/2012
Authors: S. H. Baek, M. S. Rzchowski, Vladimir A Aksyuk
Abstract: Micro-electromechanical systems (MEMS) incorporating piezoelectric layers provide active transduction between electrical and mechanical energy, which enables highly sensitive sensors and low-voltage driven actuators surpassing the passive operation o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912113

18. Anisotropic, Hierarchical Surface Patterns via Surface Wrinkling of Nanoimprinted Polymer Films
Topic: Advanced Materials
Published: 10/22/2012
Authors: Junghyun Lee, Hyun W. Ro, Rui Huang, Thomas Avery Germer, Paul Lemaillet, Christopher L Soles, Christopher M Stafford
Abstract: we demonstrated the wrinkling behavior of nanopatterned PS films, whose wrinkle wavelength and resultant morphology depend strongly on geometric parameters of surface patterns as well as the direction of the applied strain relative to the nanopattern ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912044

19. Controlling Thermochromism in a Photonic Block Copolymer Gel
Topic: Advanced Materials
Published: 9/26/2012
Authors: Joseph J Walish, Yin Fan , Andrea Centrone, Edwin L. Thomas
Abstract: Controlling the color via temperature-induced changes of self-assembled photonic materials is important for their application in sensors and displays. The thermochromic behavior of a PS-P2VP photonic gel was studied (UV-VIS, FTIR) and found to origin ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910499

20. Nucleation products of ligated nanoclusters unaffected by temperature and reducing agent
Topic: Advanced Materials
Published: 8/27/2012
Authors: John M Pettibone, Nicole R Reardon
Abstract: Atomically uniform nucleation products of ligated metal nanoclusters are observed irrespective of reduction conditions for metal-bidentate ligand systems. Monodentate ligands are not reported to wield similar control, indicating steric contributions ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911795



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