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Author: frank delrio

Displaying records 11 to 20 of 31 records.
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11. ELUCIDATING THE SURFACE COMPOSITION OF MECHANICALLY MODULATED COLLAGEN FIBRIL FILMS WITH TOF-SIMS
Published: 1/17/2013
Authors: Christopher R Anderton, Kiran Bhadriraju, Frank W DelRio, Anne L Plant
Abstract: The extracellular matrix (ECM) environment plays a critical role in organism development and disease. Consequently, developing complementary analytical techniques to study bioactive scaffolds can assist in understanding cell-ECM processes. We have ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910931

12. Standard Guide for Size Measurement of Nanoparticles Using Atomic Force Microscopy
Published: 1/1/2013
Authors: Vincent A Hackley, Frank W DelRio
Abstract: The purpose of this document is to provide guidance on the quantitative application of atomic force microscopy (AFM)to determine the size of nanoparticles2 deposited in dry form on flat substrates using height (z-displacement) measurement. Unlike ele ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912221

13. Quantifying Dithiothreitol Displacement of Functional Ligands from Gold Nanoparticles
Published: 10/27/2012
Authors: De-Hao D. Tsai, Frank W DelRio, Sherrie R. Elzey, Suvajyoti S. Guha, Michael Russel Zachariah, Vincent A Hackley, Melanie P Shelton
Abstract: Dithiothreitol (DTT)-based displacement is widely utilized for separating ligands from their gold nanoparticle (AuNP) conjugates, a critical step for differentiating and quantifying surface-bound functional ligands and therefore the effective surface ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911354

14. Tumor Necrosis Factor Interaction with Gold Nanoparticles
Published: 3/14/2012
Authors: De-Hao D. Tsai, Sherrie R. Elzey, Frank W DelRio, Robert I. MacCuspie, Suvajyoti S. Guha, Michael Russel Zachariah, Athena M Keene, Jeffrey D Clogston, Vincent A Hackley
Abstract: We report on a systematic investigation of molecular conjugation of tumor necrosis factor protein-α (TNF) onto gold nanoparticles (AuNPs) and the subsequent binding behavior to its antibody (anti-TNF). We employ a combination of physical and spe ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909899

15. Nanomechanical properties of polyethylene glycol brushes on gold substrates
Published: 2/15/2012
Authors: Gheorghe Stan, Frank W DelRio, Robert I. MacCuspie, Robert Francis Cook
Abstract: Brushes of polyethylene glycol (PEG) were directly anchored onto bare gold substrates in solution. The nucleation kinetics of PEG binding were investigated successively in solution and dry air using atomic force microscopy (AFM) imaging. In additio ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906238

16. Deformation and fracture of single-crystal silicon theta-like specimens
Published: 10/28/2011
Authors: Michael S. Gaither, Frank W DelRio, Richard Swift Gates, Robert Francis Cook
Abstract: Miniaturized test specimens of single-crystal silicon, fabricated by lithography and deep reactive ion etching (DRIE), were used to measure deformation and fracture properties at the micro scale. Two specimen geometries, both in the form of a Greek l ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908887

17. Micro-scale measurement and modeling of stress in silicon surrounding a tungsten-filled through-silicon via
Published: 10/11/2011
Authors: Ryan P. Koseski, William A Osborn, Stephan J Stranick, Frank W DelRio, Mark D Vaudin, Thuy Dao, Vance H. Adams, Robert Francis Cook
Abstract: The stress in silicon surrounding a tungsten-filled through-silicon via (TSV) is measured using confocal Raman microscopy line scans across the TSV both before and after etch removal of an oxide stack used as a mask to define the TSV during fabricati ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908908

18. Structure-property relationships for methyl-terminated alkyl self-assembled monolayers
Published: 7/20/2011
Authors: Frank W DelRio, Dave Rampulla, Cherno Jaye, Gheorghe Stan, Richard Swift Gates, Daniel A Fischer, Robert Francis Cook
Abstract: Structure-property relationships for methyl-terminated alkyl self-assembled monolayers (SAMs) are developed using near-edge X-ray absorption fine structure spectroscopy (NEXAFS) and atomic force microscopy (AFM). NEXAFS C K-edge spectra are used to ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908238

19. Quantitative Determination of Competitive Molecular Adsorption on Gold Nanoparticles Using Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy
Published: 6/28/2011
Authors: De-Hao D. Tsai, Melissa Davila-Morris, Frank W DelRio, Suvajyoti S. Guha, Vincent A Hackley, Michael R Zachariah
Abstract: Surface-sensitive quantitative studies of competitive molecular adsorption on nanoparticles were conducted using a modified Attenuated attenuated Total total Reflectionreflectance-Fourier Transform transform Infrared infrared (ATR-FTIR) spectroscopy ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907586

20. Hydrodynamic Fractionation of Finite Size Nano Gold Clusters
Published: 6/15/2011
Authors: De-Hao D. Tsai, Tae Joon Cho, Frank W DelRio, Julian S. Taurozzi, Michael Russel Zachariah, Vincent A Hackley
Abstract: We demonstrate a high resolution in situ experimental method for performing simultaneous size-classification and characterization of functional nanoscale gold clusters (NGCs) based on asymmetric-flow field flow fractionation (AFFF). Field emission sc ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908232



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