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Topic Area: Bioscience
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Displaying records 1 to 10 of 448 records.
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1. Quantitative, label-free characterization of stem cell differentiation at the single-cell level by broadband coherent anti-Stokes Raman scattering microscopy
Topic: Bioscience & Health
Published: 12/31/2014
Authors: Marcus T Cicerone, Young Jong Lee, Khaled A. Aamer, Prabhas V Moghe, Sebastian L Vega, Parth J Patel
Abstract: We use broadband coherent anti-Stokes Raman scattering (BCARS) microscopy to characterize lineage commitment of individual human mesenchymal stem cells (hMSCs) cultured in adipogenic, osteogenic, and basal culture media. We treat hyperspectral i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913019

2. Viscosity Measurements of DNA Solutions with and without Condensing Agents
Topic: Bioscience & Health
Published: 7/7/2014
Authors: Arno R Laesecke, Jessica Lynne Burger
Abstract: Aqueous DNA solutions at three concentrations were studied as model sputum by viscosity measurements at ambient pressure. Initial measurements at 25 {degree}C, 37.78 {degree}C, and 50 {degree}C indicated a viscosity increase toward 50 {degree}C. Th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914036

3. Standards in Biothermodynamics
Topic: Bioscience & Health
Published: 5/15/2014
Author: Robert Nathan Goldberg
Abstract: The field of biothermodynamics encompasses physical property measurements on biochemical and biological systems. This chapter reviews the status of standards documents that are pertinent to biothermodynamics as well as recommendations that have been ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908689

4. Measuring Organelle Shape in 3D in Stem Cells Cultured on Nanofiber Scaffolds
Topic: Bioscience & Health
Published: 4/19/2014
Authors: Carl George Simon Jr, Peter Bajcsy, Wojtek J Tutak, Jyotsnendu (Jyotsnendu) Giri
Abstract: Previous work has demonstrated that culture of osteoprogenitor cells on nanofiber scaffolds can potentiate osteogenic differentiation [1-4]. Culture of cells in nanofiber scaffolds causes changes to cell morphology, suggesting that morphological ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914995

5. Roles of Nanofiber Structure and Chemistry in Directing Stem Cell Morphology, Differentiation and Gene Expression
Topic: Bioscience & Health
Published: 4/19/2014
Authors: Sumona Sarkar, Bryan Alexander Baker, Desu Chen, Wolfgang Losert, Carl George Simon Jr, Joy P Dunkers
Abstract: Nanofiber technology has emerged as a promising tool to recapitulate the native extracellular matrix (ECM) environment for tissue engineering and regenerative medicine strategies. Cell-material interactions in the nanofiber system are largely de ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914988

6. Structural Basis for Inactivation of Giardia lamblia Carbamate Kinase by Disulfiram
Topic: Bioscience & Health
Published: 4/11/2014
Authors: Andrey Galkin, Liudmila Kulakova, Kap Lim, Catherine Chen, Wei Zhang, Illarion V Turko, Osnat Herzberg
Abstract: Carbamate kinase from Giardia lamblia is an essential enzyme for the survival of the organism. The enzyme catalyzes the final step in the arginine dihydrolase pathway converting ADP and carbamoyl phosphate to ATP and carbamate. We previously repo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915235

7. Measuring Stem Cell Dimensionality in Tissue Scaffolds
Topic: Bioscience & Health
Published: 4/1/2014
Authors: Carl George Simon Jr, Sapun Parekh, Christopher K. Tison, Girish Kumar, Tanya M. Farooque, Charles H Camp
Abstract: Many 3D scaffold systems have evolved for tissue engineering, drug screening and in vitro tissue models. However, it is not clear which scaffolds provide a 3D cell niche and there is no clear way to measure cell niche dimensionality. Advances in 3D ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913148

8. Nonlinear Oscillations and Bifurcations in Silicon Photonic Microresonators
Topic: Bioscience & Health
Published: 3/24/2014
Authors: Daniel Abrams, Alex Slawik, Kartik A Srinivasan
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914204

9. Certification of Total Arsenic in Blood and Urine Standard Reference Materials by Radiochemical Neutron Activation Analysis and Inductively Coupled Plasma - Mass Spectrometry
Topic: Bioscience & Health
Published: 3/1/2014
Authors: Rick L Paul, William C Davis, Karen E Murphy, Colleen E Bryan, Lee Lijian Yu, William F Guthrie, Dennis D Leber, Thomas W Vetter
Abstract: A newly developed procedure for determination of arsenic by radiochemical neutron activation analysis was used to measure arsenic in SRM 955c Toxic Elements in Caprine Blood and SRM 2668 Toxic Elements in Frozen Human Urine for the purpose of providi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909821

10. Why human genome sequencing platforms differ: Integrating sequencing datasets to understand biases and form consensus variant calls
Topic: Bioscience & Health
Published: 2/16/2014
Authors: Justin M Zook, Brad Chapman, Winston Hide, Marc L Salit
Abstract: Hundreds of thousands of differences exist between human whole genome variant calls from different sequencing platforms and variant calling pipelines, but the reasons for these differences are poorly understood. Well-characterized whole genome Refer ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912658



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