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Displaying 276 - 300 of 1412

A Single Amino Acid Substitution Alters ClpS Binding Specificity

March 27, 2020
Author(s)
Christina Bergonzo, Jennifer A. Tullman, Kunal Dharmadhikari, Emily Samuels, Makenzie Christensen
… that can stabilize binding for different N-terminal amino acid combinations will enable engineering artificial protein- … A Single Amino Acid Substitution Alters ClpS Binding Specificity …

Effect of Acidic Comonomers on Methacrylate Conversion and Mechanical Strength of Bioactive Composites Based on Amorphous Calcium Phosphate

January 1, 2003
Author(s)
Joseph M. Antonucci, Walter G. McDonough, Da-Wei Liu, Drago Skrtic
… on amorphous calcium phosphate (ACP). In this study four acidic monomers were evaluated for their effect on the DC and … little dependence on the chemical structure of the acidic comonomers but showed less of a reduction in DC when … compared to neutral hydrophilic comonomers, some of the acidic comonomers showed promise as surface-active comonomers …

NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1997 Comparability Studies: Results for Round Robin XXXIX, XL, and XLI Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 10 Ascorbic Acid in Human Serum

August 7, 2013
Author(s)
David L. Duewer, Margaret C. Kline, Katherine E. Sharpless, Jeanice M. Brown Thomas, Sam A. Margolis
… Carotenoids in Human Serum, and 4) Round Robin 10 Ascorbic Acid in Human Serum. The materials for Round Robin XXXIX were … Total and Trans-beta-Carotene, SRM 968b Ascorbic Acid … and Carotenoids in Human Serum and Round Robin 10 Ascorbic Acid in Human Serum …

Visualizing the Impact of a Publication: "The Protein Data Bank" in Nucleic Acids Research, 2000

July 6, 2016
Author(s)
Talapady N. Bhat, Susan L. Makar, Amanda J. Malanowski
… large biological molecules, including proteins and nucleic acids. In October 1998, the management of the PDB became the … paper, "The Protein Data Bank," published in Nucleic Acids Research in 2000. This poster illustrates the impact of … of a Publication: "The Protein Data Bank" in Nucleic Acids Research, 2000 …

Reaction Kinetics in the Ionic Liquid Methyltributylammonium Bis(trifluoromethylsulfonyl)imide. Pulse Radiolysis Study of (CF 3 )-C-Center Dot Radical Reactions

June 1, 2002
Author(s)
J Grodkowski, Pedatsur Neta
… radicals with pyrene, phenanthrene, crotonic acid, and 2-propanol in the ionic liquid … rate constant for reaction of CF3 radicals with crotonic acid is determined to be (2.7 0.4) 106 L mol-1 s-1. … pyrene and phenanthrene and a factor of 1.3 for crotonic acid. The rate constant for pyrene in aqueous acetonitrile …

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
… comprised of the biodegradable polymer poly-L-lactic acid (PLLA) and polyethylene oxide (PEO) are of considerable … depth profile, P104, pluronic, poly (lactic acid), polyethylene glycol (PEG), polyethylene oxide, polymer … Depth Profiling of Poly(L-Lactic Acid)/Pluronic Polymer BlendsWith Time-of-Flight Secondary …

Switching-off Hydrogen Peroxide Hydrogenation in the Direct Synthesis Process

February 20, 2009
Author(s)
Andrew A. Herzing, Jennifer Edwards, Benjamin Solsona, Edwin Ntainjua, Albert F. Carley, Graham J. Hutchings, Christopher J. Kiely
… hydrogenation and this has limited progress. We show that acid pre-treatment of a carbon support for gold-palladium … used in the direct synthesis of hydrogen peroxide, the acid pre-treated catalysts give high yields of H2O2 with … aberration-correction", "STEM", "XEDS spectrum imaging , acid pre-treatment". …

Acid Gas Production in Inhibited Propane-Air Diffusion Flames

August 21, 1994
Author(s)
Gregory T. Linteris
… transport- related mechanisms important in producing these acid gases, a series of inhibited flame tests are performed … importance of agent transport and chemical kinetics on the acid gas production rates. These experimental results are … Acid Gas Production in Inhibited Propane-Air Diffusion Flames …

Rotationally Resolved UV Spectroscopy of the Rotamers of Indole-4-Carboxylic Acid: Evidence of Charge Transfer Quenching

April 14, 2020
Author(s)
John Yi, Sergio Romero Servin, Leonardo Alvarez Valtierra, David F. Plusquellic
… conformational isomers of jet-cooled Indole-4-Carboxylic Acid (I4CA) and the deuterated forms of the acid (COOD) and amide (N-D) groups have been obtained using a … beam spectrometer. The in-plane orientation of the acid group defines the two lowest energy rotamers of I4CA. …

Evaluation of Graded Levels of Soy Oil as a Fish Oil Replacement in High Soy Protein Feeds for Juvenile Red Drum, Sciaenops ocellatus

June 30, 2020
Author(s)
Tracey B. Schock, Aaron Watson, Michael P. Napolitano, John A. Bowden, Jason Frost, Justin Yost, Michael R. Denson
… brain) were collected for gas chromatography-based fatty acid profiling. Ten lipid metabolism related genes were … mimicked slight differences in observed performance. Fatty acid profiles differed as a function of oil source, with no … influence by protein source, with C18:2n-6 (linoleic acid) being-the primary differentiator. Overall, the six soy …

High Level Computational Study of the Stereoelectronic Effects of Substituents on Alkene Epoxidations with Peroxyformic Acid

September 1, 1998
Author(s)
R D. Bach, M N. Glukhovtsev, Carlos A. Gonzalez
… The epoxidations of propene and isobutene with peroxyformic acid proceed in a concerted way via Markovnikov-type slightly … as 1,3-butadiene and acrylonitrile with peroxyformic acid follow a concerted asynchronous pathway. An … for the epoxidation of 1,3-butadiene with peroxyformic acid (3.9 and 2.9 kJ/mol at the QCISD and B3LYP levels, …

Extracellular and Intracellular Chorismate Mutases From Mycobacterium tuberculosis H 37 R v : Characterization of the Hypothetical Gene Products Rv1885c and Rv0948c

October 12, 2021
Author(s)
Sung Kim, Sathyavelu K. Reddy, G B. Vasquez, B C. Nelson, A M. Davis, S. Patterson, Prasad T. Reddy
… Rv1885c is indeed a chorismate mutase (CM) with a 33 amino acid cleavable signal sequence in a heterologous E. coli … have identified Arg49, Lys60, and Arg72 as catalytic amino acid residues, since a point mutation of these residues to …

An Ontological Perspective on the Circular Biomanufacturing Process Design

September 1, 2025
Author(s)
Ana Nikolov, Milos Drobnjakovic, Boonserm Kulvatunyou, Stephen Granite, John Beverley
… to process circularity. The fermentation of acetic acid was used as a biomanufacturing use case for … fermentation processes differing in the species of acetic acid bacteria and the fermentation substrates originating … ontology, comparative analysis, circular economy, acetic acid, fermentation …

Nanocomposites of Molecularly Dispersed Polyamidoamine (PAMAM) Dendrimers

January 1, 2000
Author(s)
G Kim, C L. Jackson, T J. Prosa, Da-Wei Liu, Barry J. Bauer
… To obtain image contrast in TEM, sodium phosphotungstic acid (NaPTA) was used. The spherical dendrimer shape is … dendrimers, phosphotungstic acid, polyamidoamine, small angle x-ray scattering, …
Displaying 276 - 300 of 1412
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