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Search Publications

NIST Authors in Bold

Displaying 451 - 475 of 2289

Evidence for upregulated repair of oxidatively induced DNA damage in human colorectal cancer

September 15, 2011
Author(s)
M Miral Dizdar, Pawel Jaruga, Prasad T. Reddy, Guldal Kirkali, Didem Keles, Gulgun Oktay, Aras E. Canda
… of malignancy. We hypothesized that the repair of oxidatively induced DNA base damage may be modulated in … normal tissues. To test this hypothesis, we investigated oxidatively induced DNA damage in cancerous tissues and their … tissues of patients with colorectal cancer. The levels of oxidatively induced DNA lesions such as …

Depth Profiling of Poly(L-Lactic Acid)/Pluronic Polymer BlendsWith Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS)

June 1, 2005
Author(s)
Christine M. Mahoney, J Yu, J Gardella
… polymer poly-L-lactic acid (PLLA) and polyethylene oxide (PEO) are of considerable interest due to their … in-depth profiles from PLLA/Pluronic -P104 (Polyethylene oxide-co-propylene oxide triblock copolymer [PEO-PPO-PEO]) blends of varying … (lactic acid), polyethylene glycol (PEG), polyethylene oxide, polymer blends, polypropylene oxide, TOF-SIMS …

Influence of Ligand Size and Chelation Strength on Zerovalent IronNanoparticle Adsorption and Oxidation Behavior in the Presence ofWater Vapor and Liquid Water

January 9, 2019
Author(s)
Aruni Gankanda, Nikki Rentz, Lauren F. Greenlee
… nanoparticle surface. Understanding water sorption and ZVI oxidation asa function of surface-sorbed organic ligand … similar in size (∼100 nm), and adsorption and oxidation behavior are compared onthe basis of the properties … to the surface of the ZVI nanoparticles.Adsorption and oxidation processes are studied via quartz crystal …

Role of Antiferromagnetic Spin Axis on Magnetic Reconstructions at the (111)-Oriented La 0.7 Sr 0.3 MnO 3 /LaFeO 3 Interface

August 7, 2018
Author(s)
I. Hallsteinsen, Alexander Grutter, M. Moreau, S. D. Sloejes, K. Kjaernes, E. Arenholz, T. Tybell
… Engineering of emergent properties at oxide interfaces is an exciting route towards realizing oxide electronics. Such properties are often the result of a … Interface, Thin Film, Perovskite, Oxide, Magnetism, Antiferromagnetism, Surface Effects …

Complex micropatterning of periodic structures on elastomeric surfaces

July 10, 2008
Author(s)
Arnaud Chiche, Christopher Stafford, J Cabral
We report a simple methodology to fabricate complex sub-micron periodic structures in poly(dimethylsiloxane) over large surface areas (several cm2). Single-frequency, uni- and multi-axial sinusoidal surface modulations, with tunable amplitude and

A multi-edge study: investigating Co oxidation states of pristine LiNixMnyCo1-x-yO2 cathode materials by high energy-resolution X-ray spectrometry

March 14, 2024
Author(s)
Karina Bzheumikhova, Claudia Zech, Kai Schuler, John Vinson, Yves Kayser, Burkhard Beckhoff
… The investigation of Co oxidation states in pristine LiNixMnyCo1−x−yO2 (NMC) cathodes … X-ray spectroscopy techniques. To shed light on the Co oxidation states in NMC cathodes, we employed independent … transitions. The study identified minor shifts in Co oxidation states, and theoretical calculations quantified the …

Microwave Behavior of polymer bonded Iron oxide nanoparticles

November 1, 2012
Author(s)
Pavel Kabos, A Caprile, Coisson Marco, F Fiorillo, O M. Manu, E. S. Olivetti, M. A. Olariu, Pasquale Massimo, V. A. Scarlatache
… were loaded with different fractions from 0 to 30% of Fe oxide magnetic nanoparticles with an average size ranging … Microwave Behavior of polymer bonded Iron oxide nanoparticles …

Correlated Analytical and Functional Evaluation of Higher Order Structure Perturbations from Oxidation of NISTmAb

January 22, 2023
Author(s)
Tsega Solomon, Frank Delaglio, John Giddens, John Marino, Yihua Bruce Yu, Marc Taraban, Robert Brinson
… here we used a forced degradation method, time-dependent oxidation by hydrogen peroxide, on the model biotherapeutic … analytical methods and a functional assay. To monitor the oxidation process, the experimental workflow involved … of combining NMR with other analytical tools to monitor oxidation kinetics and extract the resulting structural …

Designing Nuclear Fuels with a Multi-Principal Element Alloying Approach

March 1, 2024
Author(s)
G. Beausoleil, J. Zillinger, L. Hawkins, T. Yao, Abdullah Weiss, X. Pu, N. Jerred, D. Kaoumi
… (25°C to 1000°C). This is the same crystal structure as γ-uranium (U), which has shown desirable thermal and … MPEA alloying approach can be used to produce a stable BCC uranium-bearing alloy and to retain its stability throughout … using Monte Carlo N-Particle (MCNP) analysis to determine uranium densities necessary to make the alloy an economically …

Bending manipulation and measurements of fracture strength of silicon and oxidized silicon nanowires by atomic force microscopy

February 2, 2012
Author(s)
Gheorghe NMN Stan, Sergiy Krylyuk, Albert Davydov, Robert F. Cook
… the ultimate bending strengths of as-grown Si and fully oxidized Si nanowires were investigated by using a new atomic … 17.3 GPa for Si nanowires and 6.2 GPa for fully oxidized Si nanowires. … and measurements of fracture strength of silicon and oxidized silicon nanowires by atomic force microscopy …

Open port sampling interface mass spectrometry of wipe-based explosives, oxidizers, and narcotics for trace contraband detection

July 19, 2021
Author(s)
Thomas P. Forbes, Jeffrey Lawrence, Changtong Hao, J Greg Gillen
… and positive mode operation. Nonvolatile inorganic oxidizers present in homemade fuel-oxidizer mixtures, … common swipe sampling collection method) explosives, oxidizers, and narcotics using an OPSI source and compact … military-grade explosives and homemade explosive oxidizers. OPSI-MS sensitivities to a series of seven target …

Free Radical-Induced Damage to DNA: Mechanisms and Measurement

June 1, 2002
Author(s)
M. Dizdaroglu, Pawel Jaruga, M Birincioglu, H Rodriguez
Free radicals are produced in cells by cellular metabolism and by exogenous agents. These species react with biomolecules in cells including DNA. The resulting damage to DNA which is also called oxidative damage to DNA, is implicated in mutagenesis

The Raman Spectra of Cr 3 O 8 and Cr 2 O 5

March 1, 2001
Author(s)
James E. Maslar, Wilbur S. Hurst, Terrell A. Vanderah, Igor Levin
… chromium oxide, Cr 2 O 5 , Cr 3 O 8 , Cr 8 O 21 , Raman spectroscopy …

Exploration of the Structural Environment of the Iron-Sulfur Cluster in Putidaredoxin by Nitrogen-15 NMR Spectroscopy of Selectively Labeled Cysteine Residues

August 28, 1998
Author(s)
Fahriye N. Sari, Marcia J. Holden, M P. Mayhew, V L. Vilker, B Coxon
Putidaredoxin is a di-iron protein whose paramagnetic region is not well characterized by 1H detected NMR. We have studied the structure of this region in greater detail by directly observed 15N NMR of oxidized and reduced putidaredoxin preparations in
Displaying 451 - 475 of 2289
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