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1. 3D Imaging of Diatoms with Ion-abrasion Scanning Electron Microscopy
Published: 6/9/2009
Authors: Keana C K Scott, Mark Hildebrand, Sang Kim, Dan Shi, Sriram Subramaniam
Abstract: Ion-abrasion scanning electron microscopy (IASEM) takes advantage of focused ion beams to abrade thin sections from the surface of bulk specimens, coupled with SEM to image the surface of each section, enabling 3D reconstructions of subcellular archi ...

2. 3D elemental and structural analysis of biological specimens using electrons and ions
Published: 8/26/2010
Author: Keana C K Scott
Abstract: We demonstrate the utility of focused ion beam scanning electron microscopy (FIB SEM) combined with energy dispersive x-ray spectrometry (EDS) for 3-dimensional (3D) morphological and elemental correlative analysis of sub-cellular features. Althoug ...

3. Analysis of 3D elemental mapping artifacts in biological specimens using Monte Carlo simulation
Report Number: 832267
Published: 1/29/2009
Authors: Keana C K Scott, Nicholas W m Ritchie
Abstract: In this paper, we present the Monte Carlo simulation results demonstrating the feasibility of the focused ion beam based X-ray microanalysis technique (FIB-EDS) for the 3D elemental analysis of biological samples. We used a marine diatom Thalassiosi ...

4. Challenges, Strategies and Opportunities for Measuring Carbon Nanotubes within a Polymer Composites by X-ray Photoelectron Spectroscopy
Series: Special Publication (NIST SP)
Report Number: 1200-10
Published: 3/14/2015
Authors: Justin M Gorham, Jeremiah W Woodcock, Keana C K Scott
Abstract: FOREWORD This NIST Special Publication (SP) is one in a series of NIST SPs that address research needs articulated in the National Nanotechnology Initiative (NNI) Environmental, Health, and Safety Research Strategy published in 2011 [1]. This ...

5. Characterization of SiGe Films for use as a National Institute of Standards and Technology (NIST) Microanalysis Reference material (RM 8905)
Report Number: 8905
Published: 2/1/2010
Authors: Ryna B. Marinenko, Shirley Turner, David S Simons, Savelas A Rabb, Rolf Louis Zeisler, Lee Lijian Yu, Dale E Newbury, Rick L Paul, Nicholas W m Ritchie, Stefan D Leigh, Michael R Winchester, Lee J Richter, Douglas C Meier, Keana C K Scott, D Klinedinst, John A Small
Abstract: Bulk SiGe wafers cut from single-crystal boules and two SiGe thick films (4 m and 5 m thick) on Si wafers were evaluated with the electron probe microanalyzer for the extent of heterogeneity and composition for use as reference materi ...

6. Detection and Speciation of Brominated Flame Retardants in Consumer Products and Household Dust
Published: 3/27/2012
Authors: Richard D Holbrook, Jeffrey M. Davis, Keana C K Scott, Christopher W Szakal
Abstract: The ubiquitous presence of brominated flame retardants in humans, biota, and the environment has caused concerns about their toxicity, transformations, and persistence. Polymeric materials, which often are intercalated with include brominated flame ...

7. Effects of nanoparticle size and charge on interactions with self-assembled collagen
Published: 3/1/2014
Authors: Dongbo Wang, Jing (Jing) Ye, Steven D Hudson, Keana C K Scott, Sheng Lin-Gibson
Abstract: Recent insights into bone formation have suggested that the critical first step to the biomineralization process is the integration of small (nanometer dimension) mineral clusters into collagen fibers. Such behavior is of intrinsic interest for the a ...

8. Impact of UV Irradiation on the Surface Chemistry and Structure of Multiwall Carbon Nanotube Epoxy Nanocomposites
Published: 12/6/2013
Authors: Elijah J Petersen, Thomas F. Lam, Justin M Gorham, Keana C K Scott, Christian John Long, Deborah L Stanley, Renu Sharma, James Alexander Liddle, Tinh Nguyen
Abstract: One of the most promising applications of nanomaterials is as nanofillers to enhance the properties of polymeric materials. However, the effect of nanofillers on polymers subject to typical environmental stresses, such as ultraviolet (UV) radiation, ...

9. Live, video-rate super-resolution microscopy using structured illumination and rapid GPU-based parallel processing
Published: 3/9/2011
Authors: Jonathan A. Lefman, Keana C K Scott, Javed Khan, Stephan J Stranick
Abstract: Structured illumination fluorescence microscopy is a powerful super resolution method that is capable of achieving a resolution below 100 nm. Each super-resolution image is computationally constructed from a set of differentially illuminated images. ...

10. Methods for the Measurement of Release of MWCNTs from MWCNT-Polymer Composites
Published: 9/18/2014
Authors: Debra L Kaiser, Aleksandr B. Stefaniak, Keana C K Scott, Tinh Nguyen, Jurg Schutz
Abstract: Multi-wall carbon nanotube (MWCNT)/polymer composites hold great promise as advanced materials for consumer and industrial applications. Throughout the life cycle of these composites, there is opportunity for release of particles that may contain MWC ...

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  • SP 250-XX: Calibration Services
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