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Topic Area: Materials Science

Displaying records 91 to 100 of 427 records.
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91. Proposed UNIFORMAT II Classification of Bridge Elements
Series: Special Publication (NIST SP)
Report Number: 1122
Topic: Materials Science
Published: 6/10/2011
Authors: Muthiah Kasi, Robert E Chapman
Abstract: This report presents a proposed UNIFORMAT II classification of bridge elements. Elemental classifications differ from traditional product-related classifications because their core concept is an element that performs a given function, regardless of t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908293

92. Physicochemical characterization and in vitro hemolysis evaluation of silver nanoparticles
Topic: Materials Science
Published: 6/7/2011
Authors: Vytautas Reipa, Jonghoon Choi, Nam Sun Wang, Victoria M. Hitchins, Peter L. Goering, Robert Malinauskas
Abstract: In anticipation of the increased use of various forms of silver as an antimicrobial agent in medical devices, the objective of this study was to evaluate the in vitro hemolytic potential of silver nanoparticles in dilute human blood, and to relate pa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906184

93. Direct observation of phase transformation anisotropy in indented silicon using confocal Raman microscopy
Topic: Materials Science
Published: 5/31/2011
Authors: Yvonne Beatrice Gerbig, Stephan J Stranick, Robert Francis Cook
Abstract: The theoretically-predicted anisotropic nature of the indentation phase transformation in silicon (Si) is observed directly in experiments using hyperspectral, confocal Raman microscopy. The anisotropy is reflected in the two-dimensional distribution ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906105

94. Improving Fatigue Strength of Alumina through Surface Grading
Topic: Materials Science
Published: 5/9/2011
Authors: Yvonne Beatrice Gerbig, Linlin Ren, Lela Liu, Sanjit Bhowmick, Malvin Janal, Van Thompson, Yu Zhang
Abstract: Porcelain veneered alumina crown restorations often fail from bulk fracture resulting from radial cracks that initiate at the cementation surface with repeated flexure of the stiffer crown layers on the soft dentin support. We hypothesize that bulk f ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907566

95. Combinatorial Screening of Osteoblast Response to 3D Nano-Composite Tissue Scaffolds Using Gradients and Arrays
Topic: Materials Science
Published: 4/24/2011
Authors: Carl GEORGE Simon Jr, Kaushik Chatterjee, Limin Sun, Laurence Chung Lung Chow, Marian F Young
Abstract: Current methods for combinatorial and high-throughput (CHT) screening of cell-material interactions utilize a two-dimensional (2D) format where cells are presented on flat materials surfaces [1]. However, cell response in 3D scaffolds is more represe ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907330

96. Effect of 3D Scaffold Structure on Osteogenic Differentiation of Human Bone Marrow Stromal Cells
Topic: Materials Science
Published: 4/24/2011
Authors: Carl GEORGE Simon Jr, Girish Kumar, Marian F Young
Abstract: Structural properties of polymeric scaffolds for tissue engineering play a key role in directing osteogenesis. These properties depend on the chemical nature and the fabrication process of biomaterial. There are many protocols for fabricating scaff ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907329

97. NIST Reference Material Scaffolds Characterized for Cell Response
Topic: Materials Science
Published: 4/24/2011
Authors: Carl GEORGE Simon Jr, Jeff M Coles
Abstract: Reference scaffolds characterized for cell response are being developed for use as a standard for biological characterization of new scaffolds. The need for reference scaffolds to serve as a calibration standard between labs has been identified as c ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907327

98. Nanofiber Scaffolds Induce Morphological Changes in hBMSCs Critical for Osteogenic Differentiation
Topic: Materials Science
Published: 4/24/2011
Authors: Carl GEORGE Simon Jr, Girish Kumar, Christopher K. Tison
Abstract: Utilizing tissue scaffold architecture to induce stem cell differentiation is of tremendous importance to the regenerative medicine community. To this end, we have investigated the effect of nanofiber scaffold structure on primary human bone marrow s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907328

99. Osteoblast Response to Protein Adsorption to 3D Polymer Scaffolds Through Pre-Ageing in Cell Medium
Topic: Materials Science
Published: 4/24/2011
Authors: Carl GEORGE Simon Jr, Kaushik Chatterjee, Stevephen Hung
Abstract: Protein adsorption mediates biological responses to materials. When a biodegradable polymer scaffold is placed in aqueous, physiological medium, proteins adsorb onto the scaffold surface. The total amount, composition and structure of the adsorbed pr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907331

100. Manipulating Interfacial Relaxations at Buried Interfaces in Polymer Coatings as Probed by Creep and Adhesion Measurements
Topic: Materials Science
Published: 4/14/2011
Authors: Peter M. Johnson, John A. (John A) Howarter, Christopher M Stafford
Abstract: In this work, we use constant load indentation and cantilever peel of polymer films to measure relaxation events due to the chemical modification of a buried interface. Hydroxypropyl cellulose films on four different chemical interfaces were produce ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907697