Results 221 to 230 of about 171,459 (261)
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Systemic antibacterial mechanisms in trauma
World Journal of Surgery, 1983AbstractHost defense mechanisms are cell‐ mediated, humoral and phagocytic. Acquired derangements of one or many of the immune antibacterial defenses are common after injury. These defects include (a) a failure of T‐ cell response (DTH) to antigen stimulation manifested by negative skin test reactions to common antigens (anergy); (b) a failure of ...
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The antibacterial mechanism of perilla rosmarinic acid
Biotechnology and Applied Biochemistry, 2021AbstractRosmarinic acid (RosA) is a phenolic acid compound extracted from perilla. In this experiment, the Oxford cup method was used to verify the antibacterial activity of PerillaRosA against Escherichia coli, Staphylococcus aureus, Salmonella, and Bacillus subtilis.
Jinhua Zhang +5 more
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Preliminary studies on the antibacterial mechanism of Yanglingmycin
Pesticide Biochemistry and Physiology, 2018The antibacterial mechanism of Yanglingmycin, a new dihydrooxazole antibiotic, was preliminarily investigated by symptomatology observation and physical and biochemical analysis. The electron microscopy observation exhibited that the bacterial cell became elongated, appeared breakage or even cavities on the cell surface after treated with Yanglingmycin.
Wenjuan, Zhang +2 more
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Mechanism of an action of an antibacterial murine lymphokine
Nature, 1975THE inactivation and clearing of infectious agents through adaptive immune responses results from interactions between T lymphocytes, B lymphocytes and mononuclear phagocytes1–4. The effector cells in cell-mediated immunity (CMI) are primarily T lymphocytes and mononuclear phagocytes1,5,6.
R L, Flower, K J, Turner, M P, Alpers
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Mechanism of antibacterial activity of copper nanoparticles
Nanotechnology, 2014In a previous communication, we reported a new method of synthesis of stable metallic copper nanoparticles (Cu-NPs), which had high potency for bacterial cell filamentation and cell killing. The present study deals with the mechanism of filament formation and antibacterial roles of Cu-NPs in E. coli cells.
Arijit Kumar, Chatterjee +2 more
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Materials Science and Engineering: C, 2020
A series of Cu nanoparticles (NPs) have been prepared by a facile hydrothermal method at 180 °C using different concentrations of NaOH solutions and characterized by XRD, SEM, TEM and FT-IR spectra. Their antibacterial activities were assessed by means of Gram-positive S. aureus and Gram-negative E. coli bacteria, where various dosages (3, 5, 7, 10 mg)
Pengzhao, Lv +5 more
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A series of Cu nanoparticles (NPs) have been prepared by a facile hydrothermal method at 180 °C using different concentrations of NaOH solutions and characterized by XRD, SEM, TEM and FT-IR spectra. Their antibacterial activities were assessed by means of Gram-positive S. aureus and Gram-negative E. coli bacteria, where various dosages (3, 5, 7, 10 mg)
Pengzhao, Lv +5 more
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Mechanisms of antibacterial immunity of mucous membranes
Folia Microbiologica, 1984A survey based on both literary data and the authors own results, concerning the mechanisms of sIgA-mediated antibacterial immunity, is presented. Secretory IgA is characterized as a specific component of the immune system of mucous membranes, which can recognize harmful bacterial and distinguish them from indigenous microflora physiologically ...
J, Franĕk, J, Libich, V, Kubín
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World Journal of Microbiology and Biotechnology
Given the rising issue of antimicrobial resistance and the slow progress in the development of novel antibiotics, the identification of antimicrobial agents from ethnopharmacological plants has become a promising strategy. Baicalein is a flavonoid compound derived from medicinal plants with a wide range of pharmacological activities.
Liuqing, Mu +5 more
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Given the rising issue of antimicrobial resistance and the slow progress in the development of novel antibiotics, the identification of antimicrobial agents from ethnopharmacological plants has become a promising strategy. Baicalein is a flavonoid compound derived from medicinal plants with a wide range of pharmacological activities.
Liuqing, Mu +5 more
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Understanding the antibacterial mechanism of metal surfaces
Acta BiomaterialiaBacterial inactivation on antibacterial metal surfaces has been widely used in medicine and daily life to inhibit infection caused by surface contact. However, the underlying antibacterial mechanism of metal surfaces has remained elusive due to a lack of comprehensive theoretical perspectives and direct evidence.
J.X. Ma, X.L. Chen, M.X. Huang
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[Antibacterial mechanism of chitosan].
Wei sheng wu xue bao = Acta microbiologica Sinica, 2009In this study, we found that many metal ions could affect the antibacterial activity of chitosan, such as K+, Na+, Mg2+ and Ca2+. High concentration (about 0.5%) of metal ions could make chitosan completely lose its antibacterial activity, except for the effect of Na+ on the antibacterial activity against Staphylococcus aureus.
Wei, Chen +3 more
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