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Topic Area: Nanotechnology

Displaying records 261 to 270 of 367 records.
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261. Maximum Pixel Spectrum: A New Tool For Detecting And Recovering Rare, Unanticipated Features From Spectrum Image Data Cubes
Topic: Nanotechnology
Published: 11/1/2004
Authors: David S. Bright, Dale E Newbury
Abstract: A new software tool, the Maximum Pixel Spectrum detects rare events within a spectrum image data cube, such as that generated with electron-excited energy dispersive x-ray spectrometry (EDS) in a scanning electron microscope. The Maximum Pixel Spect ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831464

262. Dynamic behavior of dagger-shaped atomic force microscope cantilevers
Topic: Nanotechnology
Published: 10/20/2004
Authors: K Shen, Donna C Hurley, J Turner
Abstract: Experimental techniques based on the atomic force microscope (AFM) have been developed for characterizing mechanical properties at the nanoscale and applied to a variety of materials and structures. Atomic force acoustic microscopy (AFAM) is one such ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50027

263. Automated Analysis of Organic Particles Using Cluster SIMS
Topic: Nanotechnology
Published: 6/1/2004
Authors: John G Gillen, Cynthia J Zeissler, Christine M. Mahoney, Abigail P. Lindstrom, Robert A Fletcher, P Chi, Jennifer R Verkouteren, David S. Bright, R Lareau, M Boldman
Abstract: Cluster primary ion bombardment combined with secondary ion imaging is used in an ion microscope secondary ion mass spectrometer for the spatially resolved analysis of organic particles on various surfaces. Compared to the use of monoatomic primary ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831316

264. Depth Profiling of 4-Acetamindophenol-Doped Poly(lactic acid) Films Using Cluster Secondary Ion Mass Spectrometry
Topic: Nanotechnology
Published: 6/1/2004
Authors: Christine M. Mahoney, S V. Roberson, John G Gillen
Abstract: The feasibility of cluster Secondary Ion Mass Spectrometry (SIMS) for depth profiling of drug delivery systems is explored. Behaviors of various biodegradable polymer films under dynamic SF^d5^^u+^ primary ion bombardment was investigated including s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831329

265. Dynamic SIMS Utilizing SF^d5^^u+^ Polyatomic Primary Ion Beams for Drug Delivery Applications
Topic: Nanotechnology
Published: 6/1/2004
Authors: Christine M. Mahoney, S V. Roberson, John G Gillen
Abstract: The behavior of various biodegradable polymer films (e.g. polylactic acid, polyglycolic acid and polycaprolactone) as well as some model drugs (theophylline and 4-acetamidophenol) under dynamic SF^d5^^u+^ primary ion bombardment is explored. A serie ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831312

266. Relative humidity effects on the determination of elastic properties with atomic force acoustic microscopy
Topic: Nanotechnology
Published: 3/1/2004
Authors: Donna C Hurley, J Turner
Abstract: We have investigated how ambient humidity can affect quantitative measurements of elastic properties on the nanoscale. Using an emerging technique called atomic force acoustic microscopy (AFAM), two samples were examined: a thin film of fluorosilica ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851341

267. Membrane Surface Dynamics of DNA-Threaded Nanopores Revealed by Simultaneous Single-Molecule Optical and Ensemble Electrical Recording
Topic: Nanotechnology
Published: 2/3/2004
Authors: E L Chandler, A L Smith, Lisa K Burden, John J Kasianowicz, D L Burden
Abstract: We demonstrate a method for simultaneous real-time electrical and single-molecule optical recordings of the interactions between single-stranded DNA and nanoscopic pores in planar lipid membranes. Electrophysiological techniques are used to measure ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830405

268. Semiconductor Nanocrystal Probes for Human Metaphase Chromosomes
Topic: Nanotechnology
Published: 2/1/2004
Authors: Yan Xiao, Peter E. Dr. Barker
Abstract: Novel inorganic fluorophores called semiconductor nanocrystals have recently been incorporated into protein, antibody and microbead oligonucleotide detection methods where previously, organic dyes were universally employed. To improve quantitation o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830407

269. Nanometrology - FY 2003 Program and Selected Accomplishments
Series: NIST Interagency/Internal Report (NISTIR)
Topic: Nanotechnology
Published: 12/15/2003
Authors: C M Allocca, Stephen Weil Freiman
Abstract: The emphasis on nanotechnology around the world is leading to the development and commercialization of unique products based upon significantly smaller devices and material ensembles. Materials at the nanoscale in three dimensions (NEMS, MEMS), two ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=850109

270. Value Assignment and Uncertainty Estimation of Selected Light Stable Isotope Reference Materials: RMs 8543-8545, RMs 8562-8564, and RM 8566
Series: Special Publication (NIST SP)
Report Number: 260-149
Topic: Nanotechnology
Published: 12/1/2003
Authors: R Michael Verkouteren, D Klinedinst
Abstract: We report the technical basis for value assignments of several carbon and oxygen stable isotope reference materials distributed by NIST and the International Atomic Energy Agency (IAEA), and make recommendations regarding laboratory practices and fut ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831290



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