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You searched on: Topic Area: Polymers

Displaying records 11 to 20 of 400 records.
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11. Tailoring the Permselectivity of Water Desalination Membranes via Nanoparticle Assembly
Topic: Polymers
Published: 1/6/2014
Authors: Edwin P Chan, William Mulhearn, Jung-Hyun Lee, Daeyeon Lee, Christopher M Stafford
Abstract: : Thin film composite membranes can selectively separate mono- and di-valent ions from water via solution-diffusion of each species through a dense but ultrathin, highly crosslinked polymer ,skin‰ layer ‹ water is transported across the membrane fas ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914717

12. Airbrushed Nanofiber Scaffolds Support Bone Marrow Stromal Cell Differentiation
Topic: Polymers
Published: 11/1/2013
Authors: Carl George Simon Jr., Wojtek J Tutak, Sumona Sarkar, Tanya M. Farooque, Jyotsnendu J. Giri, Dongbo Wang, Sheng Lin-Gibson, Joachim Kohn, Durgadas Bolikal
Abstract: Nanofiber scaffolds are effective for tissue engineering since they emulate the fibrous nanostructure of native extracellular matrix (ECM). Although electrospinning has been the most common approach for fabricating nanofiber scaffolds, airbrushi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912293

13. Swelling of Ultrathin Molecular Layer-by-Layer Polyamide Water Desalination Membranes
Topic: Polymers
Published: 9/30/2013
Authors: Edwin P Chan, Allison P Young, Jung-Hyun Lee, Christopher M Stafford
Abstract: The water vapor swelling behavior of ultrathin crosslinked aromatic polyamide films, synthesized via molecular layer-by-layer deposition, is characterized via specular X-ray reflectivity. The results show that these films expand only along the thickn ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913915

14. Total free energy governs cell morphology ‹ A possible solution to obtain intrinsic cell modulus
Topic: Polymers
Published: 9/26/2013
Authors: Martin Y Chiang, Yanzi Yangben , Nancy J Lin, Li Yang
Abstract: Cells adjust their morphology in response to physical and chemical interactions with their environment. In this report, we deem that the fundamental nature of free energies associated with cell/substrate interactions regulates adherent cell morpholog ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909671

15. Feeling Small: Exploring the tactile perception limits
Topic: Polymers
Published: 9/12/2013
Authors: Lisa Skedung, Martin Arvidsson, Jun Y. Chung, Christopher M Stafford, Birgitta Berglund, Mark W. Rutland
Abstract: The human finger is exquisitely sensitive in distinguishing different materials, but the question remains as to what length scales are capable of being discriminated in active touch? We combine psychophysical approaches with materials science to man ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911683

16. Non-rigid and tough calcium phosphate cement scaffold seeded with umbilical cord stem cell for bone repair
Topic: Polymers
Published: 8/1/2013
Authors: Carl George Simon Jr., Hockin H. K. Xu, Michael D Weir, WahWah Thein-Han
Abstract: Human umbilical cord mesenchymal stem cells (hUCMSCs) are a promising alternative to bone marrow MSCs, which require invasive procedures to harvest. The objectives of this study were to develop a novel non-rigid and tough calcium phosphate cement (CP ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907572

17. Strain rate effect on single PPTA fiber tensile behaviour
Topic: Polymers
Published: 7/28/2013
Authors: Jae Hyun Kim, Nathanael A Heckert, Stefan D Leigh, Walter G McDonough, Kirk D Rice, Gale Antrus Holmes
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913925

18. Molecular Layer-by-Layer Assembled Reverse Osmosis Membranes for Water Desalination
Topic: Polymers
Published: 7/12/2013
Authors: Joung-Eun Gu, Seunghye Lee, Wansuk Choi, Jong Suk Lee, Bo-Young Kim, Edwin P Chan, Christopher M Stafford, Jun-Young Chung, Joona Bang, Jung-Hyun Lee
Abstract: Here, we report on the successful design, construction, and performance of membranes constructed using the mLbL process and show that these membranes exceed the performance of membranes synthesized through conventional interfacial polymerization. In ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913902

19. Mechanochromic photonic gels
Topic: Polymers
Published: 6/10/2013
Authors: Edwin P Chan, A M Urbas, Joseph J Walish, Edwin L Thomas
Abstract: Polymer gels are remarkable materials with physical structures that can adapt significantly and quite rapidly with changes in the local environmental changes such as temperature, light intensity, electrochemistry, and mechanical force. An interes ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913036

20. Single fiber tensile properties measured by the Kolsky bar using Direct fiber clamping method
Topic: Polymers
Published: 6/1/2013
Authors: Jae Hyun Kim, Nathanael A Heckert, Walter G McDonough, Kirk D Rice, Gale Antrus Holmes
Abstract: The Kolsky bar test has been widely used in measuring material behavior under high strain rate conditions. In particular, polymers used in ballistic applications have been characterized by this method to investigate high strain rate behaviors during ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913434



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