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You searched on: Author: frank delrio

Displaying records 11 to 20 of 37 records.
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11. On the bending strength of single-crystal silicon theta-like specimens
Published: 7/10/2013
Authors: Rebecca R. Kirkpatrick, William A Osborn, Michael S. Gaither, Richard Swift Gates, Frank W DelRio, Robert Francis Cook
Abstract: A new theta geometry was developed for micro-scale bending strength measurements. The new ,gapŠ theta specimen was a simple modification of the arch theta specimen that enabled micro-scale tensile testing. The gap theta was demonstrated here on sin ...

12. Effect of Organic SAMs on the Evolution of Strength of Silicon Nanostructures
Published: 6/3/2013
Authors: Scott Grutzik, Brian G Bush, Frank W DelRio, Richard Swift Gates, Melissa Hines, Alan Zehnder
Abstract: The ability to accurately predict the strength of nanoscale, single crystal structures is critical in micro- and nano-electromechanical systems (MEMS and NEMS) design. Because of the small length scales involved failure does not always follow the sam ...

13. Etching process effects on surface structure, fracture strength, and reliability of single-crystal silicon theta-like specimens
Published: 5/30/2013
Authors: Michael S. Gaither, Richard Swift Gates, Rebecca R. Kirkpatrick, Robert Francis Cook, Frank W DelRio
Abstract: The etching processes used to produce microelectromechanical systems (MEMS) leave residual surface features that typically limit device strength and, consequently, device lifetime and reliability. In order to optimize MEMS device reliability, it is ...

14. Controlled Chemistry for Studying Combined Effects of Extracellular Matrix Proteins
Published: 4/22/2013
Authors: Antony K. Chen, Frank W DelRio, Alexander W Peterson, Koo-Hyun Chung, Kiran Bhadriraju, Anne L Plant
Abstract: The extracellular matrix (ECM) consists of a complex mixture of biochemical and physical stimuli that together regulate cell behavior. Previously we showed that films composed of Type I collagen fibrils induce reproducible and physiologically relevan ...

15. Interfacial Mechanical Properties of n-Alkylsilane Monolayers on Silicon Substrates
Published: 2/1/2013
Authors: Brian G Bush, Frank W DelRio, Cherno Jaye, Daniel A Fischer, Robert Francis Cook
Abstract: The interfacial properties of n-alkylsilane self-assembled monolayers on silicon were investigated by normal force spectroscopy and lateral force measurements and correlated with molecular structure via near-edge X-ray absorption fine structure (NEXA ...

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 ...

17. 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 ...

18. 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 ...

19. 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 ...

20. 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 ...

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