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Displaying records 61 to 70.
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61. Effect of 3D Hydrogel Scaffold Stiffness on Human Bone Marrow Stromal Cell Differentiation
Topic: Biomaterials
Published: 11/1/2010
Authors: Carl George Simon Jr., Sapun Parekh, Marcus T Cicerone, Sheng Lin-Gibson, Kaushik Chatterjee, Marian F Young
Abstract: There is growing recognition cells can sense and respond to the mechanical properties of tissue scaffolds and that these interactions are critical in optimizing scaffold design [1-4]. Previous studies in planar 2D culture format have shown that human ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906309

62. Fine-tuning of polymeric resins and their interfaces with amorphous calcium phosphate. A strategy for designing effective remineralizing dental composites
Topic: Biomaterials
Published: 9/29/2010
Authors: Joseph M Antonucci, Drago Skrtic
Abstract: For over a decade our group has been designing, preparing and evaluating bioactive, remineralizing composites based on amorphous calcium phosphate (ACP) fillers embedded in polymerized methacrylate resin matrices. In these studies a major focus has b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905922

63. Combinatorial Screening of Hydrogels for 3-D Cell Culture: Osteoblasts in Stiffness Gradients Yield Graded Tissues
Topic: Biomaterials
Published: 7/1/2010
Authors: Kaushik Chatterjee, Sheng Lin-Gibson, William E Wallace, Marian F Young, Carl George Simon Jr.
Abstract: A combinatorial library approach was used to demonstrate that hydrogel scaffold modulus can enhance osteoblast differentiation driving formation of a 3-D graded tissue construct. Though many previous studies have focused on screening cell-material i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902328

64. Tooth chipping can reveal bite forces and diets of fossil hominins
Topic: Biomaterials
Published: 6/16/2010
Authors: Paul Constantino, James J. Lee, H Chai, Bernhard Zipfel, Charles Ziscovici, Brian Ronald Lawn, Peter Lucas
Abstract: Fossil hominin tooth enamel often exhibits antemortem edge chipping (Robinson 1954; Tobias 1967; Wallace 1973). Here we apply a simple fracture equation to estimate peak bite forces from the sizes of such chips. This equation, previously validated ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904073

65. Gradient Nanofiber Scaffold Libraries for Rapid Screening of Cell-Material Interactions
Topic: Biomaterials
Published: 12/1/2009
Authors: Carl George Simon Jr., Murugan Ramalingam, Marian F Young, Vinoy Thomas
Abstract: Scaffolds play a key role in tissue engineering wherein they provide structural support for cells to adhere, grow and guide them to synthesize tissue. Scaffolds made of multiple biomaterials are typically required to mimic the three-dimensional (3D) ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901837

66. Synthesis, characterization and evaluation of novel, anti-bacterial monomers for dental and biomedical applications
Topic: Biomaterials
Published: 8/16/2009
Authors: Joseph M Antonucci, Bruce Owen Fowler, Diana N. Zeiger, Nancy J Lin, Sheng Lin-Gibson
Abstract: Although progress has been made in reducing polymerization shrinkage through resin and filler phase modifications, and in designing improved dental adhesion systems, composite fillings still fail clinically because of bacterial infiltration and secon ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901947

67. Adsorption Behavior of DNA-Wrapped Carbon Nanotubes on Self-Assembled Monolayer Surfaces
Topic: Biomaterials
Published: 5/22/2007
Authors: Rebecca A Zangmeister, James E Maslar, A Opdahl, Michael J Tarlov
Abstract: We have examined the adsorption of DNA-wrapped single walled carbon nanotubes (DNA-SWNTs) on hydrophobic, hydrophilic, and charged surfaces of alkylthiol self-assembled monolayers (SAMs) on gold. Our goal is to understand how DNA-wrapped SWNTs intera ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830984

68. Electrochemical Study of Chitosan Films Deposited on Gold Electrodes
Topic: Biomaterials
Published: 7/28/2006
Authors: Rebecca A Zangmeister, J J Park, G W Rubloff, Michael J Tarlov
Abstract: We report the electrochemical characterization of chitosan films deposited on gold electrodes. Cyclic voltammetry was used to characterize the deposition and electroactivity of chitosan coated gold electrodes. Chitosan films were found to deposit a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830940

69. Towards In-Situ Monitoring of Cell Growth in Tissue Engineering Scaffolds: High Resolution Optical Techniques
Topic: Biomaterials
Published: 1/12/2004
Authors: Marcus T Cicerone, Joy P Dunkers, N Washburn
Abstract: Inability to obtain cellular-level information about progress of cell growth in tissue-engineering (TE) scaffolds is a pervasive problem. We demonstrate that a confocal microscope with two collinear contrast mechanisms, optical coherence, and fluore ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852112

70. The Use of MALDI-TOF MS and 1H NMR as Complimentary Methods for Confirming Composition and Purity of Hydrogel Prepolymers
Topic: Biomaterials
Published: 1/1/2004
Author: Sheng Lin-Gibson
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=853949



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