Marlon L. Walker

Staff Education

Ph.D. (1988): Georgia Institute of Technology, Atlanta, GA
Major: physical chemistry
Thesis: "Light Scattering and Light Transmission Studies of UV-Induced Protein Crosslinking in Separated Lens Crystallins and Whole Lenses"

M.S. (1983): Indiana University, Bloomington, IN
Major: nuclear chemistry
Thesis: "Search for Fission-like Break-up in the p + 28Si Reaction at 200 MeV"

B.S. (1980): Duke University, Durham, NC
Major: chemistry/philosophy

Marlon Walker's research interests lie in the direction of non-destructive surface characterization, including "soft-surfaces" such as self-assembled monolayers (SAMs) and thin polymer films. Former work involved using in situ spectroscopic ellipsometry to explore the interactions of certain additives critical to the copper electrodeposition process applicable to microelectronic circuitry. More recent efforts were focused on developing and characterizing oligo(ethylene oxide)-based self assembled monolayers that resist protein adsorption. Current assignment is with MEP, helping small and medium-size manufacturers succeed by connecting them with the expertise and facilities of the NIST Labs.

Awards

George Uriano Award, 2021

Selected Publications

In Situ Ellipsometric Study of PEG/Cl^- Coadsorption on Cu, Ag, and Au

May 1, 2005

Author(s)

Marlon L. Walker, Lee J. Richter, Thomas P. Moffat

Spectroscopic ellipsometry was used to examine the adsorption of polyethylene glycol (PEG) and Cl- on polycrystalline Cu, Ag and Au electrodes in sulfuric acid

Potential Dependence of Competitive Adsorption of PEG, Cl^-, and SPS/MPS on Cu: An In Situ Ellipsometric Study

October 16, 2008

Author(s)

Marlon L. Walker, Lee J. Richter, Thomas P. Moffat

Potential dependent adsorption of bis- (3-sodiumsulfopropyl disulfide) (SPS), 3-mercaptopropyl sulfonate (MPS), Cl , and polyethylene glycol (PEG) on evaporated

Self-Assembled Monolayers of an Oligo(ethylene oxide) Disulfide and its Corresponding Thiol Assembled From Water: Characterization and Protein Resistance

February 5, 2008

Author(s)

David J. Vanderah, Marlon L. Walker, Mark A. Rocco, Kenneth A. Rubinson

The self-assembled monolayers (SAMs) of the ?-methyl oligo(ethylene oxide) disulfide [S(CH2CH2O)6CH3]2, [S(EO)6]2 {OEO disulfide}, on Au from 95 % ethanol and

Publications

Short-Chained Oligo(ethylene oxide)-Functionalized Gold Nanoparticles: Realization of Significant Protein Resistance

October 30, 2017

Author(s)

Kathryn Riley, Christopher Sims, Imani Wood, David J. Vanderah, Marlon L. Walker

Protein corona formed on nanomaterial surfaces play an important role in the bioavailability and cellular uptake of nanomaterials. Modification of surfaces with

In-Situ Characterization of Oligoethyleneoxide Self-Assembled Monolayers: Prospects for Protein Adsorption Resistance

February 19, 2017

Author(s)

Marlon L. Walker, David J. Vanderah, Kenneth A. Rubinson

In-situ spectroscopic ellipsometry was used to examine the adsorption of self-assembled monolayers (SAMs) of HS(CH2)3O(CH2CH2O)5CH3 C3(EO)5}, HS(CH2CH2O)6CH3

Mechanical response of thermally annealed Nafion thin films

December 7, 2016

Author(s)

Bradley R. Frieberg, Kirt A. Page, Joshua R. Graybill, Marlon L. Walker, Gery R. Stafford, Christopher L. Soles

The proton exchange membranes (PEMs) in a hydrogen fuel cell experiences hundreds if not thousands of cycles between wet and dry conditions during their service

Antioxidant Cerium Oxide Nanoparticles in Biology and Medicine

May 17, 2016

Author(s)

Bryant C. Nelson, Monique E. Johnson, Marlon L. Walker, Kathryn R. Riley, Christopher M. Sims

Previously, catalytic cerium oxide nanoparticles (CNPs, nanoceria, CeO2-x NPs) have been widely utilized for chemical mechanical planarization in the

Particle Fabrication Using Inkjet Printing onto Hydrophobic Surfaces for Optimization and Calibration of Trace Contraband Detection Sensors

November 24, 2015

Author(s)

John G. Gillen, Marcela N. Najarro, Matthew E. Staymates, Scott A. Wight, Marlon L. Walker, Jennifer R. Verkouteren, Eric S. Windsor, Aaron A. Urbas

A method has been developed to fabricate patterned arrays of micrometer-sized monodisperse solid particles of ammonium nitrate on hydrophobic silicon surfaces

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Staff Education

M.S. (1983): Indiana University, Bloomington, IN
Major: nuclear chemistry
Thesis: "Search for Fission-like Break-up in the p + 28Si Reaction at 200 MeV"

B.S. (1980): Duke University, Durham, NC
Major: chemistry/philosophy

Marlon L. Walker (Fed)

Awards

Selected Publications

Publications