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Displaying records 51 to 60 of 402 records.
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51. 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 ...

52. Chemical Imaging of Drug Eluting Coatings: Combining Surface Analysis and Confocal Raman Microscopy
Topic: Nanotechnology
Published: 3/1/2008
Authors: A M Belu, Christine M. Mahoney, Klaus Wormuth
Abstract: Chemical images of the surfaces and the interiors of coatings of rapamycin in poly(lactic-co-glycolic acid) (PLGA) obtained by mass spectrometry and light scattering methods reveal a three dimensional picture of the chemical morphology of drug elutin ...

53. Chemical Imaging of Heterogeneous Polymeric Materials With Near-Field IR Microscopy
Topic: Nanotechnology
Published: 4/1/2005
Authors: Chris A Michaels, D B Chase, Stephan J Stranick
Abstract: The development of techniques to probe spatial variations in chemical composition on the nanoscale continues to be an important area of research in the characterization of polymeric materials. Recent efforts have focused on the development and chara ...

54. Chemical Science and Technology Laboratory (CSTL) 2009 Annual Report
Series: NIST Interagency/Internal Report (NISTIR)
Topic: Nanotechnology
Published: 11/17/2009
Authors: Willie E May, Richard R Cavanagh, Dianne L Poster, Michael D. Amos
Abstract: CSTL is entrusted with building, sustaining, and maximizing the chemical measurement system that is criticial to chemical technological innovation, economic competitiveness and new job growth for the benefit of the Nation.

55. Chemical and Structural Characterization of Ultrathin Dielectric Films Using AEM
Topic: Nanotechnology
Published: 1/1/2000
Authors: J H J Scott, Eric S Windsor
Abstract: The structure of ultrathin silicon oxynitride films, used as gate dielectrics in integrated circuits (ICs), is studied using analytical electron microscopy (AEM). Laterally homogeneous blanket films approximately 2nm in thickness are characterized i ...

56. Cluster Primary Ion Beam Secondary Ion Mass Spectrometry for Semiconductor Characterization
Topic: Nanotechnology
Published: 1/1/2001
Authors: John G Gillen, S V. Roberson, Albert J. Fahey, Marlon L Walker, J Bennett, R Lareau
Abstract: We are evaluating the use of polyatomic and cluster primary ion beams for characterization of semiconductor materials by secondary ion mass spectrometry using both magnetic sector and time-of-flight SIMS instruments. Primary ion beams of SF^d5^+, ...

57. Comparison of Semiconductor Pixel Array, Phosphor Plate, and Track-Etch Detectors for Alpha Autoradiography
Topic: Nanotechnology
Published: 12/1/1997
Author: Cynthia J Zeissler

58. Comparison of the Properties of Cellulose Nanocrystals and Cellulose Nanofibrils Isolated From Bacteria, Tunicate, and Wood Processed Using Acid, Enzymatic, Mechanical, and Oxidative Methods
Topic: Nanotechnology
Published: 4/18/2014
Authors: Iulia Alisa Sacui, Jeffrey W Gilman, Ryan C Nieuwendaal, Stephan J Stranick, Henryk Szmacinski, Mehdi Jorfi, Christopher Weder, Johan Foster, Richard Olsson, Daniel Burnett
Abstract: This work describes the study and characterization of native cellulose nanocrystals and nanofibrils (CNCs, CNFs), whose crystallinity, morphology, aspect ratio, and surface chemistry depend on the raw material source and hydrolysis conditions. Me ...

59. Competitive Adsorption of PEG, CI^u-^, and SPS/MPS on Cu: An In Situ Ellipsometric Study
Topic: Nanotechnology
Published: 8/1/2006
Authors: Marlon L Walker, Lee J Richter, Thomas P Moffat
Abstract: The adsorption of Cu electrodeposition accelerating agents SPS and MPS on evaporated Cu thin films was examined in-situ using spectroscopic ellipsometry under quiescent conditions. Both the thiol (MPS) and disulfide (SPS) resulted in definitive chan ...

60. Competitive Adsorption of Thiolated Polyethylene Glycol and Mercaptoproprionic acid on Gold Nanoparticles Measured by Physical Characterization Methods
Topic: Nanotechnology
Published: 5/24/0010
Authors: De-Hao D. Tsai, Frank W DelRio, Robert I. MacCuspie, Tae Joon Cho, Michael Russel Zachariah, Vincent A Hackley
Abstract: Adsorption kinetics between thiolated polyethylene glycol (SH-PEG) and mercaptoproprionic acid (MPA) on gold nanoparticles (Au-NP) were studied using dynamic light scattering (DLS) and electrospray differential mobility analysis (ES-DMA). Through a c ...

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