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Topic Area: Polymers

Displaying records 61 to 70 of 546 records.
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61. Characterization of the non-uniform reaction in chemically-amplified calix[4]resorcinarene molecular resist thin films
Topic: Polymers
Published: 7/19/2011
Authors: Vivek M Prabhu, Shuhui Kang, Regis J Kline, Dean M DeLongchamp, Daniel A Fischer, Wen-Li Wu, Sushil K. Satija, Jing Sha, Christopher K. Ober, Peter V. Bonnesen
Abstract: The ccc stereoisomer-purified tert-butoxycarbonyloxy (t-Boc) protected calix[4]resorcinarene molecular resists blended with photoacid generator exhibit a non-uniform photoacid catalyzed reaction in thin films. The surface displays a reduced reaction ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908683

62. Stiffness, strength, and ductility of thin films and membranes ‹ A combined wrinkling-cracking methodology
Topic: Polymers
Published: 7/15/2011
Authors: Jun Y. Chung, Junghyun Lee, Kathryn L Beers, Christopher M Stafford
Abstract: Polymer membranes are at the core of a diverse set of technologies critical to our global health and security, ranging from energy production to water purification to carbon capture. These engineered membranes must maintain performance over many yea ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908241

63. Statistical analysis of fiber gripping effects on single fiber tensile test
Topic: Polymers
Published: 5/26/2011
Authors: Jae Hyun Kim, Nathanael A Heckert, Stefan D Leigh, Walter G McDonough, Haruki Kobayashi, Kirk D Rice, Gale Antrus Holmes
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907786

64. Combinatorial Screening of Osteoblast Response to 3D Nano-Composite Tissue Scaffolds Using Gradients and Arrays
Topic: Polymers
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

65. Effect of 3D Scaffold Structure on Osteogenic Differentiation of Human Bone Marrow Stromal Cells
Topic: Polymers
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

66. NIST Reference Material Scaffolds Characterized for Cell Response
Topic: Polymers
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

67. Nanofiber Scaffolds Induce Morphological Changes in hBMSCs Critical for Osteogenic Differentiation
Topic: Polymers
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

68. Osteoblast Response to Protein Adsorption to 3D Polymer Scaffolds Through Pre-Ageing in Cell Medium
Topic: Polymers
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

69. Manipulating Interfacial Relaxations at Buried Interfaces in Polymer Coatings as Probed by Creep and Adhesion Measurements
Topic: Polymers
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

70. Modulus-Driven Differentiation of Marrow Stromal Cells in 3D Is Independent of Cytoskeletal Integrity
Topic: Polymers
Published: 4/11/2011
Authors: Carl George Simon Jr, Kaushik Chatterjee, Sapun Parekh, Sheng Lin-Gibson, Nicole M. Moore, Marcus T Cicerone, Marian F Young
Abstract: Cell functions such as proliferation, migration, and differentiation are key physiological processes that are influenced by the physiochemical extracellular environment. We report on the effect of three-dimensional (3D) scaffold modulus on human bon ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907017



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