نتایج جستجو برای: bactericidal
تعداد نتایج: 11202 فیلتر نتایج به سال:
Paneth cells secrete alpha-defensins into the lumen from the base of small intestinal crypts, and cryptdin-4 (Crp4) is the most potent mouse alpha-defensin in vitro. Purified recombinant Crp4 and Crp4 variants with (des-Gly)-, (Gly1Val)-, (Gly1Asp)-, and (Gly1Arg)-substitutions were all bactericidal with Crp4 and (Gly1Arg)-Crp4 being slightly more active than other variants. Bactericidal activi...
A complement-independent bactericidal IgG1 against the OspB of Borrelia burgdorferi increased the permeability of the outer membrane through the creation of openings of 2.8 - 4.4 nm, resulting in its osmotic lysis. Cryo-electron microscopy and tomography demonstrated that exposure to the antibody causes the formation of outer membrane projections and large breaks which may precede the increase ...
Macrophages (Mφ) play a pivotal role in the protection system by recognizing and eliminating invading pathogenic bacteria. Phagocytosis and the killing of invading bacteria are major effector functions of Mφ. Although the phagocytic and bactericidal activities of Mφ have been analyzed via several methods using a light microscope, a fluorescence microscope, or a fluorescence-activated cell sorte...
The presence of antibiotics in the environment and their subsequent impact on the development of multi-antibiotic resistant bacteria has raised concerns globally. Consequently, much research is focused on a method to produce a better disinfectant. We have established a disinfectant system using UVA-LED that inactivates pathogenic bacteria. We assessed the bactericidal efficiency of a combinatio...
Strains of gonococcus were shown to be immunologically heterologous. Serum bactericidal activity generally correlated with induced immunity to gonococcal challenge as detected by the guinea pig subcutaneous chamber model. Sera devoid of bactericidal activity reflected the lack of cross-protection in subcutaneous chambers. Factors affecting the bactericidal assay described in this report include...
The concentration/MIC (C/MIC) ratio maximizing the bactericidal activity of ceftazidime against 10 Pseudomonas aeruginosa isolates from cystic fibrosis patients was identified. Bactericidal activity was assessed by determining the percent difference in the area under the killing curve at each C/MIC ratio for all of the isolates from that of their growth control. The percent effect at each C/MIC...
Neely, W. Brock (The Dow Chemical Co., Midland, Mich.). Action of formaldehyde on microorganisms. III. Bactericidal action of sublethal concentrations of formaldehyde on Aerobacter aerogenes. J. Bacteriol. 86:445-448. 1963.-Bacteriostatic concentrations of formaldehyde were found to be bactericidal during the initial growth period. This bactericidal activity was due to the primary induction of ...
in this study bactericidal activity of a malodor neutralizer containing silver nanoparticles manufactured in iran has been tested. for this purpose different concentrations of the product encounter with staphylococcus aureus, pseudomonas aeruginosa and bacillus cereus then the activity were evaluated in different contact times. the products containing at least 200 ppm of silver nanoparticles we...
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