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Deborah A. Barkley on Muck Rack

Deborah A. Barkley

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Articles

Evaluation, identification and impact assessment of abnormal internal standard response variability in regulated LC−MS bioanalysis

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By Deborah A. Barkley, Yunlin Fu, Wenkui Li, Franck Picard
| future-science.com
Internal standard (IS) has been widely employed in quantitative liquid chromatography-tandem mass spectrometry (LC−MS/MS) bioanalysis in support of drug discovery and development and post approval therapeutic drug monitoring [1,2]. In practice, a fixed amount of IS is added to zero samples (blank plus IS only), calibration standards (Cs), quality controls (QCs) and study samples in each bioanalytical run.
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Interphase Structures and Dynamics near Nanofiller Surfaces in Polymer Solutions

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By Bobby G. Sumpter, Tadanori Koga, Deborah A. Barkley, Michihiro Nagao
| American Chemical Society
Abstract We report the in situ structures and dynamics of hydrogenated polybutadiene (PB) chains bound to carbon black nanoparticle surfaces in polymer solutions composed of deuterated PB and deuterated toluene using small-angle neutron scattering and neutron spin-echo techniques together with molecular dynamics (MD) simulations.
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Hexagonally Ordered Arrays of α-Helical Bundles Formed from Peptide-Dendron Hybrids

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By Deborah A. Barkley, Jeannette E. Marine, Yekaterina Rokhlenko, Rachelle David
| American Chemical Society
Combining monodisperse building blocks that have distinct folding properties serves as a modular strategy for controlling structural complexity in hierarchically organized materials. We combine an ?-helical bundle-forming peptide with self-assembling dendrons to better control the arrangement of functional groups within cylindrical nanostructures.
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