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Skip to Search Results- 33Mass-spectrometry
- 29Chemistry
- 23Organic compounds. Synthesis.
- 22Catalysis
- 22Metabolomics
- 21Capillary electrophoresis.
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Investigations of Fungal Highly Reducing Polyketide Synthases: The Biosyntheses of Lovastatin and Hypothemycin
DownloadFall 2017
Fungal highly reducing polyketide synthases (HR-PKSs) are large, multi-domain enzymes central to the biosynthesis of fungal polyketides. They assemble complex secondary metabolites, called polyketides, through the condensation of two-carbon acetate units and tailoring of the functional groups at...
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Spring 2018
The hydrogen-bonded complex between hydrogen peroxide and formic acid was studied by rotational spectroscopy and ab initio calculations. Because of the simplicity, chemical activity, and importance of hydrogen peroxide, it is a prototypical molecule to study intermolecular interactions, in...
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Spring 2018
The development of rapid and bioorthogonal chemical reactions has expanded greatly the utility of bioconjugation chemistry in the service of site-selective protein labeling, even allowing molecular imaging in live cells or animals. âClickâ chemistry is particularly desirable due to its fast...
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Fall 2017
The development of photolithography has been the main driving force of the semiconductor industry to keep pace with Moore’s Law for over five decades. The theoretical resolution limit of state-of-the-art 193 nm photolithography is about 36 nm (half pitch). By integrating multiple patterning...
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Spring 2018
Acidocin B (AcdB), a bacteriocin from Lactobacillus acidophilus M46 that was initially reported to be a linear peptide, was purified and shown to be circular based on MALDI-TOF MS and MS/MS sequencing. MS analysis further revealed that AcdB is comprised of 58 amino acid residues, instead of 59...
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Fall 2017
To evaluate the applicability and expand the limit of the Zintl-Klemm concept, many new alkali-metal pnictides were synthesized by high temperature solid reactions in A-M-Pn or A-Tt-Pn ternary systems and A-M-Tt-Pn quaternary systems (A = Na, K, Rb; M = Mn, Zn, Cd; Tt = Si, Ge, Sn; Pn = As, Sb). ...
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Spring 2017
Fortuitous characterization of the cationic nickel cluster [Ni4(NPtBu3)4][Li3Br4(Et2O)3] led to the rational syntheses and characterization of the mixed-valence low-coordinate cationic nickel cluster: [Ni4(NPtBu3)4]BPh4 and [Ni4(NPtBu3)4]PF6, and subsequently the preparation of the anionic...
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Spring 2017
Electrical behavior of thin layers of molecules sandwiched vertically between two carbon contacts is the subject of this thesis. The main focus was put on the effect of molecular structural variations on charge transport through the molecular layers. The charge transport mechanism was deduced by...
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A New Approach to Molecular Hydrodesulfurization Catalysts: Allyl-capped Trialkylphosphoranimide-bridged Late First-row Transition Metal Clusters
DownloadFall 2017
A series of new trialkylphosphoranimide allyl-capped clusters [M(ƞ3-allyl)(NPR)3]2, (M = Fe, Co or Ni, R = Et, tBu or Ph) were synthesized. The nickel dimers [Ni(ƞ3-allyl)(NPR3)]2, R = Et, Ph are diamagnetic and have been fully characterized using NMR spectroscopy, X-ray crystallography,...