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Author: Robert Cook

Displaying records 1 to 10 of 49 records.
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1. Frictional properties of native and functionalized type I collagen thin films
Published: 10/2/2013
Authors: Koo-hyun Chung, Antony Chen, Christopher Anderton, Kiran Bhadriraju, Anne L Plant, Brian G Bush, Robert Francis Cook, Frank W DelRio
Abstract: Frictional properties of native and fibronectin (FN)-functionalized type I collagen (COL) thin films were studied via atomic force microscopy. The COL lateral contact stiffness was dependent only on the hydration state, indicating that shear deformat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914307

2. Decoupling small-scale roughness and long-range features on deep reactive ion etched silicon surfaces
Published: 9/19/2013
Authors: Frank W DelRio, Lawrence H Friedman, Michael S. Gaither, William A Osborn, Robert Francis Cook
Abstract: Roughness scaling of three different deep reactive ion etched (DRIE) silicon surfaces is investigated using atomic force microscopy. At small distances, height-height correlations H reveal power-law behavior with equal scaling exponents for all surf ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913812

3. Development of a Precision Nanoindentation Platform
Published: 7/18/2013
Authors: Douglas T Smith, Bartosz Karol Nowakowski, Robert Francis Cook, Stuart T Smith, Luis F Correa
Abstract: This paper presents the design, construction and performance of a surface- referenced nanoindentation instrument termed a precision nanoindentation platform (PNP). The PNP is a symmetrically designed instrument with a centrally located indenter tip a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912510

4. 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 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913369

5. 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 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912389

6. Surface-Engineered Nanomaterials as X-ray Absorbing Adjuvant Agents for Auger-Mediated Chemo-Radiation
Published: 4/30/2013
Authors: Robert Francis Cook, Sang-Min Lee, De-Hao D. Tsai, Vincent A Hackley, Martin W. Brechbiel
Abstract: We demonstrate a prototype approach to formulate gold nanoparticle (AuNP)‹based X‹ray absorbing adjuvant agents through surface‹engineering of cisplatin pharmacophore (PtII) with lipoic acid‹modified polyacrylate (denoted as PtII‹AuNPs). Design of Pt ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911911

7. Accuracy and Resolution of Nanoscale Strain Measurement Techniques
Published: 3/26/2013
Authors: William A Osborn, Lawrence H Friedman, Mark D Vaudin, Stephan J Stranick, Michael S. Gaither, Justin M Gorham, Victor Vartanian, Robert Francis Cook
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913178

8. 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 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911464

9. Indentation device for in situ Raman spectroscopic and optical studies
Published: 12/12/2012
Authors: Yvonne Beatrice Gerbig, Chris A Michaels, Aaron M Forster, John W Hettenhouser, Walter Eric Byrd, Dylan J. Morris, Robert Francis Cook
Abstract: Instrumented indentation is a widely used technique to study the mechanical behavior of materials at small length scales and thus has been exploited in particular for metals, ceramics, glasses, and polymers. Mechanical tests of bulk materials, micros ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911470

10. In situ observation of the indentation-induced phase transformation of silicon thin films
Published: 3/5/2012
Authors: Yvonne Beatrice Gerbig, Chris A Michaels, Aaron M Forster, Robert Francis Cook
Abstract: Indentation-induced phase transformation processes were studied by in situ Raman microspectroscopy of the deformed contact region of silicon on sapphire samples during contact loading and unloading. During loading, the formation of Si-II and another ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910047



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