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Topic Area: Nanotechnology

Displaying records 271 to 280 of 340 records.
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271. Preparation and Certification of K-411 Glass Microspheres
Topic: Nanotechnology
Published: 12/1/2000
Authors: Ryna B. Marinenko, S V. Roberson, J S Small, Barbara B. Thorne, Douglas H. Blackburn, D Kauffman, Stefan D Leigh
Abstract: The production and characterization of NBS K-411 glass microspheres in the 3-40 um range for certification as a NIST Standard Reference Material (SRM) are described. EDS quantitative analysis and heterogeneity evaluations of the microspheres were ma ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831165

272. Shape Factors of ISO 12103-A3 (Medium Test Dust)
Topic: Nanotechnology
Published: 11/1/2000
Authors: Robert A Fletcher, David S. Bright
Abstract: A new derivative of Arizona sand, ISO Medium Test Dust, is coming into use as a liquid optical particle count calibrant. ISO Medium Test Dust and optical particle counters are used to test filtering efficiency. Particle shape plays a role in both fil ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831146

273. Driven DNA Transport Into an Asymmetric Nanometer-Scale Pore
Topic: Nanotechnology
Published: 10/2/2000
Authors: S. E. Henrickson, Martin Misakian, B Robertson, John J Kasianowicz
Abstract: To understand the mechanism by which individual DNA molecules partition into a nanometer-scale pore, we studied the concentration and voltage dependence of polynucleotide-induced current blockades of single a-hemolysin ionic channels. At fixed singl ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830159

274. Amphibole Asbestos From Libby, Montana: Aspects of Nomenclature
Topic: Nanotechnology
Published: 10/1/2000
Authors: A G Wylie, Jennifer R Verkouteren
Abstract: Richterite-asbestos and winchite-asbestos are not listed in the Federal regulations governing asbestos. However, asbestiform winchite is found in the gangue at the Libby, Montana, vermiculite deposit, where asbestos-related diseases have been report ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831463

275. Chemical Imaging With Scanning Near-Field Infrared Microscopy and Spectroscopy
Topic: Nanotechnology
Published: 10/1/2000
Authors: Chris A Michaels, Lee J Richter, Richard R Cavanagh, Stephan J Stranick
Abstract: The development of a scanning near-field microscope that utilizes infrared absorption as the optical contrast mechanism is described. This instrument couples the nanoscale spatial resolution of a scanning probe microscope with the chemical specifici ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831196

276. Scanning Near-Field Infared Microscopy and Spectroscopy with a Broadband Laser Source
Topic: Nanotechnology
Published: 10/1/2000
Authors: Chris A Michaels, Lee J Richter, Richard R Cavanagh, Stephan J Stranick
Abstract: Near-field scanning optical microscopy (NSOM) is a powerful tool for the characterization of the optical properties of nanoscale objects, although pervasive artifacts often create difficulties in image interpretation. A three dimensional scanning NS ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831210

277. The Tremolite-Actinolite-Ferro-Actinolite Series: Systematic Relationships Among Cell Parameters Composition, Optical Properties, and Habit and Evidence of Discontinuities
Topic: Nanotechnology
Published: 9/1/2000
Authors: Jennifer R Verkouteren, A G Wylie
Abstract: The cell parameters, optical properties and chemical composition of 103 samples in the tremolite-actinolite-ferro-actinolite series have been measured. The combination of properties and the large number of samples provided a powerful means of determi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831109

278. PC/MAC Image Processing Freeware for Examining Spectral Images
Topic: Nanotechnology
Published: 8/1/2000
Author: David S. Bright
Abstract: Lispix is a public domain image processing system for Windows and the Macintosh, is applied to exploration of a spectral image of data cube.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831171

279. Phosphor Imaging Plate Measurement of Electron Scattering in the Environmental Scanning Electron Microscope
Topic: Nanotechnology
Published: 8/1/2000
Authors: Scott A Wight, Cynthia J Zeissler
Abstract: Phosphor Imaging Plate Technology is applied to electron beam scattering in the Environmental Scanning Electron Microscope. The plate is exposed to primary and scattered electrons which stimulate the phosphor grains to an excited state. The intensi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831179

280. Characterization of the Electron Beam Specimen Interaction in the ESEM with SIM Imaging
Topic: Nanotechnology
Published: 7/1/2000
Authors: Scott A Wight, John G Gillen, G B. Saupe
Abstract: A Secondary Ion Mass Spectrometry (SIMS) study has been undertaken to examine surfaces and films modified in the environmental scanning electron microscope (ESEM). Examination of the modifications induced by ESEM electrons and ions lead to a better ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830163