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 377 for “"Antimicrobial activity"”.
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Development Of Active Packaging With Antimicrobial Activity
… functional properties, such as antioxidant and antimicrobial properties.</p> <p>In our study, the chitosan-gallic acid edible films and chitosan-essential oil coatings with antimicrobial activity, as well as active packaging with chlorine dioxide sachet were developed. The results show that the …
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Investigation into the antimicrobial activity of cationic antibacterials.
… focussed on the action of four cationic antimicrobial agents against E. coli, S. aureus and P. aeruginosa. Triclosan is widely used clinically and as an ingredient of personal care products that has come under renewed scrutiny by the FDA last year. Colistin is used clinically as salvage …
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Antimicrobial activity in cultures of female Drosophila Melanogaster
… may be due to the presence of small molecule antimicrobials secreted by female flies, possibly as a means of protecting the eggs from pathogenic microbes as well as potential for preserving the food source for larvae. Extracts from fly cultures were active against Escherichia coli and other …
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Surface Coatings for Antimicrobial Activity and Fast Evaporation
… and evaluation of surface coatings in two areas: antimicrobial activity and fast evaporation. The COVID-19 pandemic underscored the necessity for coatings that mitigate microbial transmission through surfaces, alleviating both contagion and personal fears. The first part of this study presents the …
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Antimicrobial activity of human seminal plasma and seminal plasma proteins
… were responsible for the major bactericidal activity of seminal plasma. The activity of these peptides was strictly zinc-dependent. We also found potent antifungal activity in seminal unleashed by the acid vaginal pH. The antifungal activity was mediated by beta-microseminoprotein (MSP). The …
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Production of silver-loaded zeolites and investigation of their antimicrobial activity
… silver ions into zeolites frameworks and their antimicrobial activity is presented. Silver-loaded zeolites produced by ion-exchange in this work include silver-exchanged zeolite X, silver-exchanged zeolite A and silver-exchanged high-alumina Phillipsite. Silver-doped Analcime was produced by …
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Synthesis, Characterization, and Antimicrobial Activity of Water-soluble, Tri-carboxylato Amphiphiles
Many previous studies of biological activity in a homologous series of amphiphiles have shown a cut-off effect, where the biological activity increases with an increase in chain length, after which the activity plateaus or weakens. One factor suspected to cause this problem is solubility issues. We …
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Antimicrobial Activity of Human Leukocyte Defensin HNP-4 Against Gram-negative Bacteria
… 1-4. The peptides have broad-spectrum antibiotic activity. HNP 1-3 are major neutrophil components. They differ by only one amino acid residue. HNP-4 is found in small amounts, and has a different sequence. HNP-4 purified from neutrophils was reported to be 100-times more active than HNP-1 against …
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Synthesis, Characterization, Critical Micelle Concentration and Antimicrobial Activity of Two-headed Amphiphiles
… a mechanism of action for anti-Staphylococcal activity.
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Antimicrobial activity of fungal secondary metabolites isolated from pearl millet on gut microflora
… stages. Hazardous secondary metabolites with antimicrobial properties for instance polyketide, non-ribosomal peptides, alkaloids, and terpenes are produced by fungi and can cause food poisoning and possibly affect the microflora in the gut. It is important to identify and document whether …
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The Antimicrobial Activity of Cold Pressed Terpeneless Valencia Orange Oil at Cold Temperatures
<p>This research was undertaken to identify an antimicrobial for use during chilling in beef processing, including periods of temperature abuse, as well as to evaluate membrane filtration as means to remove essential oils from bacteria to prevent further antibacterial action. Cold pressed …
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Production and characterization of a phage endolysin with putative antimicrobial activity against Cutibacterium acnes
… retain bactericidal and bacteriostatic activity when applied to bacteria in vitro and are safe for topical application. We hypothesize that the endolysin (ENDL) from the P100.1 C. acnes bacteriophage will exhibit bacteriostatic activity against C. acnes in vitro. This study aims to …
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In silico-guided design, synthesis and antimicrobial activity of piperazine-linked 8-hydroxyquinoline-isatin hybrids
… pathogenic bacteria and fungi render existing antimicrobials ineffective, fuel the global antimicrobial resistance (AMR) crisis, and ultimately serve as impetus for the discovery of new antimicrobial agents. Hybrid drugs formed by covalently binding two pharmacophores, have shown promise in …
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Strategies to potentiate bactericidal antimicrobial activity based on the suppression of bacterial stress response systems
… threats to human health is the emergence of antimicrobial resistance. Since the discovery of antimicrobials, new mechanisms of resistance have emerged. Various strategies are being studied to combat the emergence of resistance including the development of new antimicrobial, use of adjuvants …
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Synthesis and Antimicrobial Activity of Half-Sandwich Ir(III), Rh(III), and Co(III) Complexes
This dissertation describes the synthesis and antimicrobial use of a series of half-sandwich Ir(III), Rh(III), Co(III) amino acid and ethylenediamine complexes. This investigation focuses on the formulation (ηn-arene)M(L)X, (L = ethylenediamine or α-amino carboxylate), (M= Ir, Rh, Ru, Co). Arene, …
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The isolation and assessment of the antimicrobial activity of bacteriolytic and bactericidal endolysins of enterobacteriaceae infecting bacteriophages
Thesis submitted in fulfilment for the requirements of the degree of Master of Health Science in Medical Laboratory Science, Durban University of Technology, Durban, South Africa, 2025.
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Phytochemical and biological investigation of erigeron annus (L.) Pers for antimicrobial activity and potential DNA gyrase inhibitors
… research has been published on it biological activity and no activity against MRSA has been reported. In this research, whole plant material was collected in Shanghai, China and its chemical composition, antibacterial activity, DNA gyrase inhibitory activity and mutagenicity assessment were …
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