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You searched on: Author: gordon shaw

Displaying records 21 to 30 of 32 records.
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21. The Stiffness of Collagen Fibrils Influences Vascular Smooth Muscle Cell Phenotype
Published: 3/1/2007
Authors: Dennis P. McDaniel, Gordon Allan Shaw, John T Elliott, Kiran Bhadriraju, Curtis W Meuse, Koo-Hyun Chung, Anne L Plant
Abstract: Cells receive signals from the extracellular matrix through receptor-dependent interactions, but they are also influenced by the mechanical properties of the matrix. While bulk properties of substrates have been shown to effect cell behavior, we sho ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830514

22. Traceable Micro-Force Calibration for Instrumented Indentation Testing
Published: 2/13/2007
Authors: Douglas T Smith, Gordon Allan Shaw, Richard Seugling, Jon Robert Pratt, Dan Xiang
Abstract: We describe the development, performance and application of an accurate SI-traceable force calibration and verification system for potential use in the field calibration of commercial instrumented indentation testing (IIT) instruments. The system co ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854482

23. SI-Traceable Spring Constant Calibration of Microfabricated Cantilevers for Small Force Measurement
Published: 9/14/2006
Authors: Gordon Allan Shaw, John A Kramar, Jon Robert Pratt
Abstract: A variety of methods exist to measure the stiffness of microfabricated cantilever beams such as those used as mechanical sensors in atomic force microscopy (AFM). In order for AFM to be used as a quantitative small force measurement tool, these meth ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822356

24. New reference standards and artifacts for nanoscale physical property characterization
Published: 7/1/2006
Authors: Jon Robert Pratt, John A Kramar, Gordon Shaw, Richard Gates, Paul Rice, John M Moreland
Abstract: This paper provides an overview of calibration artifacts being developed at the National Institute of Standards and Technology (NIST) that are intended to aid the accurate determination of nanoscale physical properties across a broad range of applica ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32411

25. Calibration of Microfabricated Cantilevers for SI-Traceable Small Force Measurement
Published: 1/1/2006
Authors: Gordon Allan Shaw, Jon Robert Pratt, John A Kramar
Abstract: A procedure is described by which the spring constant of a microfabricated cantilever beam can be calibrated for the measurement of small forces in an atomic force microscope (AFM) or other device. The procedure utilizes dynamic force instrumented i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821950

26. Force Calibration Via Electrostatics
Published: 1/1/2006
Authors: Jon Robert Pratt, John A Kramar, Gordon Allan Shaw, Lee Kumanchik
Abstract: We describe the electrical and length measurements necessary to realize micronewton forces in a fashion consistent with the International System of Units (SI). We first discuss instrumentation and procedures required to accurately characterize an el ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822547

27. New Reference Standards and Artifacts for Nanoscale Physical Property Characterization
Published: 1/1/2006
Authors: Jon Robert Pratt, John A Kramar, Gordon Allan Shaw, Richard Swift Gates, Paul Rice, John M Moreland
Abstract: This paper provides an overview of calibration artifacts being developed at the National Institute of Standards and Technology (NIST) that are intended to aid the accurate determination of nanoscale physical properties across a broad range of applica ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822462

28. Use of Transfer Artifacts for Small Force Measurement
Published: 1/1/2006
Authors: Gordon Allan Shaw, Jon Robert Pratt, Richard Swift Gates, Mark Reitsma
Abstract: In order for the atomic microscope (AFM) to be used in truly quantatitive studies, a basis within the international system of units (SI) must be established. In order to do this, the microfabricated cantilevers typically used for AFM force measureme ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822279

29. Mechanical Stability of Collagen Fibril Networks
Published: 11/1/2005
Authors: Gordon Allan Shaw, Dennis P. McDaniel, John T Elliott, Alessandro Tona, Anne L Plant
Abstract: Thin films of type 1 collagen fibril networks fabricated on alkanethiol-functionalized surfaces have been previously shown to provide an excellent protein matrix for cultured cells in applications such as drug toxicity studies and studies of cell sig ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822465

30. Development of Traceable Small Force Standards
Published: 6/1/2005
Authors: Gordon Allan Shaw, Jon Robert Pratt
Abstract: Although instrumented indentation and atomic forcve microscope (AFM) are utilized extensively for the measurement of forces in the piconewton to millinewton regime, accurate calibration of these forces remains an obstacle to quantitative research. D ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822278



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