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You searched on: Topic Area: Biomaterials

Displaying records 41 to 50 of 95 records.
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41. Effect of Surface Chemistry on Stem Cell Response in 2-D vs. 3-D Cell Culture Niches
Topic: Biomaterials
Published: 4/19/2013
Authors: Sumona Sarkar, Carl George Simon Jr., Roberta I Lock, Joy P Dunkers
Abstract: To develop tissue engineered devices for regenerative medicine strategies, key scaffold properties for directing stem cell response must be identified. As focus shifts from 2-D to 3-D culture systems in an attempt to better recapitulate the na ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912888

42. NIST Micronutrients Measurement Quality Assurance Program Summer 2012 Comparability Studies
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7880-1
Topic: Biomaterials
Published: 3/15/2013
Authors: David Lee Duewer, Jeanice M Brown Thomas
Abstract: The National Institute of Standards and Technology coordinates the Micronutrients Measurement Quality Assurance Program (MMQAP) for laboratories that measure fat- and water-soluble vitamins and carotenoids in human serum and plasma. This report desc ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913474

43. Gradient Nanofiber Scaffold Libraries for Screening Cell Response to Poly(e-caprolactone)-Calcium Phosphate Composites
Topic: Biomaterials
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

44. Concentration Dependent Neural Differentiation and Neurite Extension from mouse ESC on Primary Amine-derivatized Surfaces
Topic: Biomaterials
Published: 2/27/2013
Authors: Laura A Smith Callahan, Yanrui Ma, Christopher M Stafford, Matthew L Becker
Abstract: We demonstrate a versatile, well controlled, and highly reproducible surface density gradient fabrication strategy that allows for precise control over surface functionality and slope. Our approach involves of a novel ,vacuum awayŠ channel confinemen ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912099

45. Facile Fabrication of "Dual Click" One- and Two-Dimensional Orthogonal Peptide Concentration Gradients
Topic: Biomaterials
Published: 1/21/2013
Authors: Yanrui Ma, Jukuan Zheng, Emily F. Amond, Christopher M Stafford, Matthew L Becker
Abstract: Peptides, proteins and extracellular matrix act in concert to influence cellular function at the biotic-synthetic interface. However identifying the individual and synergistic contributions of the various combinations and concentration regimes is e ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912748

46. Relative Rigidity of Cell-Substrate Affects Hepatic and Hepatocellular Carcinoma Cell Migration
Topic: Biomaterials
Published: 12/3/2012
Authors: Martin Y Chiang, Hongbing Wang, Li Zhong, Qiaoyan Tan, Gurinder K Singh, Song Li, Li Yang, Yanzi Yangben
Abstract: Polyacrylamide gels with different stiffness and glass were employed as substrates to investigate how substrate stiffness affects the cellular stiffness of adherent hepatocellular carcinoma (HCCLM3) and hepatic (L02) cells. The interaction of how cel ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910699

47. Effect of offset values of solid freeform fabricated PCL/ß-TCP scaffolds on mechanical properties and cellular activities in bone tissue regeneration
Topic: Biomaterials
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

48. GENERATING CELL CO-CULTURES BY RAPID CELL ADHESION ON OPPOSITE SIDES OF POLYESTER MEMBRANES
Topic: Biomaterials
Published: 10/28/2012
Authors: Conni Hanke, Petra S. Dittrich, Darwin R Reyes-Hernandez
Abstract: A cell co-culture was generated on opposite sides of a permeable polyester membrane (PET) membrane by combining dielectrophoretic (DEP) and electrostatic forces to hold cells against gravity in a multilayer microfluidic device (Figure 1). HepG2 cell ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911771

49. THE ROLE OF TOOTH ENAMEL MECHANICAL PROPERTIES IN PRIMATE DIETARY ADAPTATION
Topic: Biomaterials
Published: 6/27/2012
Authors: Paul Constantino, James J. Lee, Yvonne Beatrice Gerbig, Adam Hartstone-Rose, Mauricio Talebi, Brian Ronald Lawn, Peter Lucas
Abstract: Primate teeth adapt to the physical properties of foods in a variety of ways including changes in occlusal morphology, enamel thickness, and overall size. We conducted a comparative study of extant primates to examine whether their teeth also adap ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907407

50. Optimization of Imaging Polymer Based Scaffolds Using X-Ray Microcomputed Tomography
Topic: Biomaterials
Published: 5/15/2012
Authors: David E, Morris, Melissa L Mather, Carl George Simon Jr., John A Crowe
Abstract: The performance of polymer based scaffolds used in regenerative medicine is linked to their structural properties and as such strategies for structural characterization of scaffolds have been developed. X-ray microscopic computed tomography (X-ray ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906393



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