Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"P-aminobenzoic acid"”.
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A novel diazonium-sulfhydryl reaction in the inactivation of yeast alcohol dehydrogenase by diazotized 3-aminopyridine adenine dinucleotide
… studies with 5,5'- dithiobis (2-nitrobenzoic acid) as well as isolation and quantification of the cysteinyl derivative released by acid hydrolysis of the modified enzyme. The cysteinyl derivative was identified as S-(3-pyridyl) cysteine. Authentic S-(3-pyridyl) cysteine was synthesized and …
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Addressing the ongoing threat of antimicrobial resistance: synthetic investigations of novel amicetin and B-lactam antibiotics
… this study, namely the attempted synthesis of p-aminobenzoic acid (PABA)--methyl-L-serine substructure of amicetin, from PABA as the starting point. Synthetic access to the PABA--methyl-L-serine moiety would allow for structure-activity relationship (SAR) studies to be performed on the natural …
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Control of polymorphism in continuous crystallization
… compounds. Using the monotropic L-glutamic acid as the model compound, two temperature regimes each with distinctive kinetic and thermodynamic characteristics were identified. It is found that at high temperatures, the polymorph dynamics is mediated by the relative thermodynamics of the …
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Synthesis of Polysaccharide Aldehydes or Ketones and Fabrication of Derived Hydrogels or Microgels
… C2 position of the monosaccharide and carboxylic acid groups on polysaccharides. In this way, more reducing ends (C1 of the monosaccharide) can be introduced to the polysaccharides. We have chosen to call this new family of polysaccharides "multi-reducing end polysaccharides (MREPs)". We call this …
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Hydroxypropylmethylcellulose: A New Matrix for Solid-Surface Room-Temperature Phosphorimetry
… aromatic hydrocarbons (PAHs): naphthalene, p-aminobenzoic acid, acenaphthene, phenanthrene, 2-naphthoic acid, 2-naphthol, salicylic acid, and triphenylene.Filter paper and HPMC substrates are inherently anisotropic, non-heterogeneous media. Since this deficiency cannot be addressed …
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Investigation of the effects of antifolates on Escherichia coli 1810.
… of Trimethoprim (TMP), Sulphadiazine (SD) and p-Aminobenzoic acid (pABA) on the outer membrane and peptidoglycan (OM-PG) associated proteins in the test bacteria. The test organisms were the sensitive Escherichia coli NCTC K-12 (E.coli K-12) and Escherichia coli 1810 (E.coli 1810) which was …