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 20 of 111 for “"Ampicillin"”.
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Spectrophotometric and microbiological determination of the stability of sodium ampicillin as affected by pH
… determine the effect of pH on the stability of ampicillin sodium for injection. Then, to correlate this information, a pH profile may be established to predict chemical stability with ampicillin sodium alone or when other drugs may be included in the admixture. With a pH profile the pharmacist …
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Novel anitbody-based assays for disease and food contaminant detection
… BI (AFBl), and the p-lactam antibiotic, ampicillin. Imrnunoassays based on the detection of antibodies to a phospholipase D (PLD) exotoxin of Corynebacterium pseudotuberculosis, the causative agent of caseous lymphadenitis (CLA), were investigated. A previously cloned recombinant form of …
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Antibiotics and human phagocytic cells
… phagocytic cells and antibiotics (particularly ampicillin). The first clinical studies showed that during antibiotic therapy the rate of intracellular killing usually decreased. This effect could not be demonstrated by adding ampicillin in vitro to granulocytes during their phase of …
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Metal complexes of penicillin and cephalosporin antibiotics
… acid, cephalothin, cephalexin, ampicillin and thiaproline were used to study the effect of structural changes in the ligand on the structure of the complex. The stability constants of several metal-ions/penicillin complexes were determined potentiometrically. These were …
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An assessment of antibiotic resistant bacteria in biosolid used as garden fertilizer
… these samples were resistant to tetracycline, ampicillin, streptomycin, kanamycin and chloramphenicol. Tetracycline resistant bacteria were isolated on MacConkey's agar supplemented with tetracycline and their resistance to ampicillin, streptomycin, chloramphenicol and kanamycin were also …
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Cooperative behaviors in the evolution of antibiotic resistance
… in the presence of the [beta]-lactam antibiotic ampicillin. Second, I investigated whether two strains of Escherichia coli can form a cross-protection mutualism in a multi-drug environment containing the antibiotics ampicillin and chloramphenicol. In both experimental systems, I found that …
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Schnelles und zuverlässiges therapeutisches Drug-Monitoring mit HPLC-UV und LC/LC-MS/MS aus komplexen Matrizes
… von Studien wurden Bestimmungsmethoden für Ampicillin und Sulbactam aus Knochen und Serum sowie für Penicillin G und Sulbactam aus Knochen, Knorpel, Schleimhaut und Serum entwickelt und die Messungen der Proben am LC-MS durchgeführt. Mit Rifampicin wurden ebenfalls vollautomatisch …
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Entwicklung eines Biosensors zum Nachweis von Antibiotika und Sulfonamiden in Milch- Herstellung der immunchemischen Komponenten
… penicillins rabbits were immunized with an ampicillin-BSA-conjugate. The resulting antiserum was employed for the development of a direct competitive enzyme immunoassay (EIA), giving a detection limit of 1 ng/ml for penicillin G in milk. Due to broad cross-reactivities the sensitive …
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Insights Into Determinants That Contribute to Colonization, Virulence and Antibiotic Resistance In Enterococci
… with higher PBP5 protein levels in clade A ampicillin-resistant strains as compared to clade B and subclade A2 ampicillin-susceptible strains. Furthermore, I found evidence that there are extensive differences within the region upstream of <em>pbp5</em> among the clades that correlate with …
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Developing a Novel Antibiotic Resistance Detection Method for Water Systems using IDEXX TECTA Technologies
… specifically against the widely used antibiotic ampicillin, this research aimed to pioneer a novel, readily deployable approach. The TECTA was used to explore viable E. coli concentrations at varying antibiotic concentrations and to analyze different growth kinetics according to the degree of …
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Assessment of Antimicrobial Resistance in Pathogens Responsible for Causing Bovine Mastitis in Kentucky
… only minor resistance seen in penicillin (7%), ampicillin (5%), oxacillin (2%), and cephalothin (2%). Coagulase negative Staphylococci species showed their highest resistance to oxacillin (31%), pirlimycin (23%), tetracycline (17%), and ampicillin (14%). Streptococci species were the least …
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Evaluation of Heavy Metals and Metalloid Accumulation in a Small-Scale Aquaponic System and an Effect on Bacterial Antibiotic Resistance
… for bacterial antibiotic resistance (BAR) to ampicillin and tetracycline was also evaluated, and the effect of the HMs on the growth of lettuce, evaluated by root and shoot (edible leaves) elongation was also investigated. The HMs concentration in the aquaponics water over time were not …
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Molecular identification and antibiogram profiling of Avibacterium Paragallinarum and co-pathogenic bacteria assiciated with respiratory infections in chickens at Groot Aub settlement, Khomas region
… strains were susceptible to tetracycline and ampicillin, but resistant to gentamycin, ciprofloxacin and trimethoprim sulfamethoxazole. On the contrary, all isolated co-pathogenic bacteria were resistant to tetracycline and sensitive to trimethoprim sulfamethoxazole, ampicillin and …
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Presence of Antibiotic Resistant Salmonella spp. in Backyard Poultry and Their Environment
… sensitivity to 6 standard antibiotics: Ampicillin, Bacitracin, Erythromycin, Gentamicin, Penicillin, and Tetracycline, at the standard disk concentration levels. The Kirby-Bauer antimicrobial sensitivity test determined that 12 different profiles emerged from the <em>Salmonella </em>spp. …
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The Single drop drying of heat-sensitive materials
… on the potency of various antibiotics, viz. ampicillin, chloramphenicol, oxytetracycline, streptomycin and tetracycline, were assessed using a modified Drug Sensitivity Testing technique. Only ampicillin was heat-sensitive at temperatures above 100°C, e.g. at an air temperature of 115°C its …
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Understanding the intrinsic antibiotic resistance in Lysobacter enzymogenes, a ubiquitous environmental bacterium
… LeC3 recovered 12 and 19 mutants with decreased ampicillin and spectinomycin resistance, respectively. Further characterization of selected mutants showed that cell permeability, β-lactamase activity and transport contributed to high level of resistance to ampicillin in LeC3; whereas high level …
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Effects of phytogenics on intestinal pathogenic bacteria and microbiota of non-ruminants
… activity comparable to erythromycin and ampicillin. The synergistic antibacterial activity of combinations of these plant extracts and with antibiotics was also investigated against the above pathogens. Only one combination of extracts of A. chinensis Bunge and A. pilosa Ledeb indicated …
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Antimicrobial resistance patterns of foodborne bacterial isolates from HIV/AIDS patients in Lusaka, Zambia.
… coli been found to be highly resistant to ampicillin and sulfamethoxazole/trimethoprim with 95.4% and 80.95% resistance respectively. Foodborne bacteria such as Staphylococcus aurues isolates were 100% resistant to azithromycin and 90.90% resistant to methicillin. While Salmonella paratyphi …
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Antimicrobial resistance patterns of foodborne bacterial isolates from HIV/AIDS patients in Lusaka, Zambia.
… coli been found to be highly resistant to ampicillin and sulfamethoxazole/trimethoprim with 95.4% and 80.95% resistance respectively. Foodborne bacteria such as Staphylococcus aurues isolates were 100% resistant to azithromycin and 90.90% resistant to methicillin. While Salmonella paratyphi …
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Chemical and biological evaluation of antibiotic-based ionic liquids and GUMBOS against pathogenic bacteria
… subsequent in vitro antimicrobial activity of ampicillin-based ILs consisting of several different quaternary ammonium compounds (QACs) on Escherichia coli O157:H7, Klebsiella pneumoniae, Staphylococcus aureus, and Listeria monocytogenes. The synthesized API-ILs were validated with proton …
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