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 41 for “"antibacterial activities"”.
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Antibacterial Activities of Cannabidiol Against Two Major Oral Pathogens
… a Cannabis sativa L. L. extract, has shown antibacterial properties against various bacterial species, especially gram-positive cocci. This dissertation aimed to evaluate the antibacterial efficacy of CBD against Streptococcus mutans and Porphyromonas gingivalis bacterial growth and …
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Antibacterial activities of silver-nanoparticles-titania composite thin films fabricated by the molecular precursor method (MPM)
… upon receiving light energy; thus, it possesses antibacterial properties. The antibacterial property of silver-nanoparticles-doped TiO2 photocatalysts (Ag-NPs/TiO2) could be further enhanced by visible light illumination, which also widens its practical applications. However, the major limitation …
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Antibacterial activities of selected medicinal plants used to treat sexually transmitted infections in Blouberg area, Limpopo Province
… plant extracts were prepared and tested for antibacterial activity against 23 human pathogenic bacterial strains using disc diffusion method.
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Examination of the antibacterial activities of some semi-synthetic chalcone-derivatives alone and in combination with polymyxin B.
… an urgent need for the rational development of antibacterial compounds that have either novel or multiple mechanisms of action. This study demonstrated that two chalcone derivatives - F1 and F23 - had MICs from 16 mg/ml to over 512 mg/ml, when used against two plant pathogens (P. caratovoram and …
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Green synthesis of silver nanoparticles using Moringa oleifera extracts and their evaluation against antibiotic resistant strains of escherichia coli and staphylococcus aureus
… (AgNPs) using M. oleifera extracts and compare antibacterial activities of AgNPs prepared in M. oleifera extracts with AgNPs of common antibiotics (penicillin G and streptomycin) against antibiotic resistant strains of Escherichia coli and Staphylococcus aureus. Synthesized AgNPs were …
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Isolation and Characterization of Active Ingredients from Nigella Sativa for Antibacterial Screening.
… decades, few reports have confirmed the various antibacterial activities of total extract from the seeds of <em>Nigella sativa</em> (Black cumin). In attempts to identify the active ingredients in this extract, the seeds were extracted with hexane. The volatile oil obtained from the crude extract …
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Phytochemical screening and antibacterial testing of selected Namibian medicinal plants against laboratory and clinical bacteria that cause Diarrhoea
… associated with various ailments; including antibacterial activity and some of them have been used worldwide in traditional settings to treat diarrheal diseases. However evidence on safety and efficacy of some of these traditional medicinal plants is lacking, preventing their mainstream use. …
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Liposomal clarithromycin delivery for the treatment of pseudomonal lung infection in cystic fibrosis.
… clarithromycin into liposomes could improve its antibacterial activity against clinical isolate of Pseudomonas aeruginosa from CF patients. Different formulations of liposomal clarithromycin were prepared, characterized and their antibacterial activities against resistant strains of P. aeruginosa …
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The discovery and functional study of a bioactive peptide QUB-1418 from the defensive skin secretion of the Wuyi torrent frog (Amolops wuyiensis)
… resistance (AMR), scientists have been studying antibacterial peptides (AMPs), which have great potential to be a substitute for antibiotics. <br/><br/>In this study, the cDNA sequence encoding a bioactive peptide named QUB-1418, and it has been identified in the skin secretions of Amolops …
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The discovery and functional study of a novel bioactive peptide, QUB-2561, from the defensive skin secretion of the Central American red-eyed leaf frog, Agalychnis callidryas.
… are short amino acid chains with multiple bioactivities. Compared with other small molecular drug candidates, peptides are highly specific and not easy to induce side effects. Many antimicrobial peptides (AMPs) have been found in frog skin epidermal secretions, which usually have …
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Natural product chemistry in drug discovery
… Staphylococcus aureus (MRSA). It links reported antibacterial activities to structural features, identifies molecular motifs associated with anti-MRSA efficacy, and proposes lead structures for further investigation. The second reports the isolation of flavonoids and sesquiterpene lactones from …
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Identification and recombinant production of antimicrobial peptides from the Black Soldier Fly, Hermetia illucens (L.)
… several AMPs have been characterised for their antibacterial activities. This thesis aims to identify and produce AMPs from H. illucens and build on our collective repertoire of antimicrobial strategies against drug-resistant bacterial infections. To achieve this, an approach was taken that …
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Lysin Based Antimicrobial Peptides Against Acinetobacter Baumannii
… including bacteriophage endolysins with potent antibacterial activities. A common feature of these lysins is the presence of a highly positively charged C-terminal domain with a likely role in promoting outer membrane penetration. In the current study, we show that the C-terminal amino acids …
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Molecular cloning, peptide synthesis and bioactive assessment of a skin defensive peptide, QUB-2658 from the skin secretion of <i>Limnonectes fujianensis</i>
… were found to have excellent broad-spectrum antibacterial activities and inhibit drug-resistant bacteria, which made AMPs a potential new antibacterial drug source. Frog skin secretions are the most abundant source of AMPs and thus they have been widely studied by researchers. <br/><br/>In …
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Metabolomics and chemical library screening for antibacterial drug discovery
… compound drug libraries to identify novel antibacterial activities against MRSA by increasing the dimensionality of the screening effort. One dimension involved generating and screening a human liver microsome metabolized drug library in parallel with the original library to identify …
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Assessment of Bioactivity of Se-lected Plants against Pests and Microbes from Agro-pastoral Communities in Mbulu District, Tanzania
… and pesticidal plant species and their bioactivities and toxicity against selected bacteria, fungi and storage pests. Bioactivities (antimicrobial and antioxidant activities) against disease causing organisms, toxicity against brine shrmps, first filial generation (F1) progeny, feeding …
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A study of compounds having antibacterial activity isolated from Rubus pinfaensis Levl. et Vant.
… into the isolation and evaluation of the antibacterial activity of the constituents Rubus pinfaensis Levl.et Vant, a herb used in Traditional Chinese Medicine to promote wound healing. An extract of plant material collected in China, has been subjected to chromatography, guided by …
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Antimicrobial effects of naturally occurring compounds against microorganisms relevant to food safety
… of action of these active compounds.<br/><br/>Antibacterial activities of naturally-occurring compounds were evaluated against Escherichia, coli (E. coli), Clostridium sporogenes and Mycobacterium avium subspecies paratuberculosis {Map). The most active compounds against these bacteriainclude …
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The screening of medicinal plants traditionally used to treat diarrhoea, in Ongoye area, KwaZulu Natal.
… tigna. Above mentioned plants were screened for antibacterial activity against the following ATCC bacteria strains: Bacillus subtilis, Escherichia colt, Klebsiella pneumoniae and Staphylococcus aureus. Escherichia coli, Salmonella spp, Shigella flexneri and Shigella sonnei. The antibacterial …
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Antimicrobial activity testing of traditionally used plants for treating wounds and sores at Ongoye area KwaZulu-Natal, South Africa
… The above-mentioned plants were screened for antibacterial activity against the following bacteria strains: Bacillus subtilis (6051), Escherichia coli (7751, U1405s, U16406, U16403), Klebsiella pneumoniae (13883), Staphylococcus aureus (12600, P5020, P4790, T1266), ‘Salmonella spp., Shigella …
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