نتایج جستجو برای: antimicrobial effects
تعداد نتایج: 1621925 فیلتر نتایج به سال:
Introduction The resistance of microorganisms to antibiotics is increasing, and researchers are considering replacing effective antimicrobial agents with fewer side effects. One strategy is to focus on phytochemical activities with antimicrobial properties. Researchers have now studied a variety of plants that could be potential sources of antimicrobial agents. Scabiosa extract has high antio...
Root canal disinfection is one of the main factors governing success of endodontic therapy. Antimicrobial photodynamic therapy (aPDT) is presented as a promising antimicrobial therapy that can eliminate microbiota present in infected root canal systems. In this study, a series of experiments investigated the effects of aPDT on cell viability and biofilm degradation ability of endopathogenic mic...
the antimicrobial effects of essential oil isolated from myrtus communis l. against es-cherichia coli, staphylococcus aureus, streptococcus faecalis, pseudomonas aeruginosa, klebsiella pneumoniaee, bacillus subtilis, bacillus licheniformis, candida albicans and sac-charomyces cerevisiae were studied. the disc diffusion method was used to evaluate the zone of microbial growth inhibition at vario...
background : incidence of white spots due to demineralization of enamel and gingival problems is an unacceptable result of orthodontic treatment. plaque accumulation and bacterial biofilm growth are responsible for these phenomena. the resin-based dental composites used as bonding agents in orthodontics play a major role in mentioned problems. as recent researches assert the an...
introduction: an ideal intracanal medicament should be able to eliminate any remaining intracanal microorganism. the aim of this study was to compare the antimicrobial effects of bioglass 45s5 with calcium hydroxide on enterococcus ( e ) faecalis in-vitro . materials & methods: direct exposure test (det) was used to evaluate the antimicrobial effect of bioglass 45s5, calcium hydroxide and norma...
the simultaneous cross-linking and antimicrobial finishing of bleached cotton and cationized cotton by 3-chloro2-hydroxypropyl trimethyl ammonium chloride (quat-188) with butane tetracarboxylic acid and nano titanium dioxide is studied and explored in the current study. butane tetracarboxylic acid (btca) as a cross-linking agent can be linked to the cotton cellulosic chains by covalent bonds an...
Lipopolysaccharide (LPS), shed by gram-negative bacteria during infection and antimicrobial therapy, may lead to lethal endotoxic shock syndrome. A rational design strategy based on the presumed mechanism of antibacterial effect was adopted to design cationic antimicrobial peptides capable of binding to LPS through tandemly repeated sequences of alternating cationic and nonpolar residues. The p...
Background: Essential oils of medicinal plants such as chamomile are very complex natural mixtures which can contain compounds at quite different concentrations and some of their components have antioxidant and antimicrobial activities in foodstuff. Objective: The antioxidant and antimicrobial effects of chamomile essential oil in cake preparation were evaluated during 75 days of storag...
Antimicrobial agents are some of the most widely, and often injudiciously, used therapeutic drugs worldwide. Important considerations when prescribing antimicrobial therapy include obtaining an accurate diagnosis of infection; understanding the difference between empiric and definitive therapy; identifying opportunities to switch to narrow-spectrum, cost-effective oral agents for the shortest d...
To test for antimicrobial activity, crude extractions of the fruit of Barringtonia edulis were performed using traditional Hawaiian implements of a stone grinder (poi pounder) and a wooden board. The Kirby-Bauer method was used to test the antimicrobial properties of these extractions against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Pseudomonas aeruginosa, and Candida albican...
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