Bacteriophage-encoded enzymes destroying bacterial cell membranes and walls, and their potential use as antimicrobial agents

2021 ◽  
Vol 248 ◽  
pp. 126746
Author(s):  
Łukasz Grabowski ◽  
Krzysztof Łepek ◽  
Małgorzata Stasiłojć ◽  
Katarzyna Kosznik-Kwaśnicka ◽  
Karolina Zdrojewska ◽  
...  
Keyword(s):  
Bacterial Cell ◽  
Cell Membranes ◽  
Antimicrobial Agents ◽  
Potential Use

scholarly journals Molecular Dynamics Simulation of the Interaction of Two Linear Battacin Analogs with Model Gram-Positive and Gram-Negative Bacterial Cell Membranes

ACS Omega ◽  
2020 ◽  
Author(s):  
Aparajita Chakraborty ◽  
Elisey Kobzev ◽  
Jonathan Chan ◽  
Gayan Heruka de Zoysa ◽  
Vijayalekshmi Sarojini ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Bacterial Cell ◽  
Cell Membranes ◽  
Dynamics Simulation ◽  
Gram Positive ◽  
Gram Negative

Proximate composition of orange peel, pea peel and rice husk wastes and their potential use as antimicrobial agents and antioxidants

2021 ◽  
Author(s):  
Syeda Andleeb Zahra Naqvi ◽  
Ali Irfan ◽  
Saima Zaheer ◽  
Aeysha Sultan ◽  
Shanavas Shajahan ◽  
...  
Keyword(s):  
Rice Husk ◽  
Proximate Composition ◽  
Antimicrobial Agents ◽  
Orange Peel ◽  
Potential Use

scholarly journals Biosynthesis of Silver Nanoparticles Mediated by Entomopathogenic Fungi: Antimicrobial Resistance, Nanopesticides, and Toxicity

Antibiotics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 852
Author(s):  
Tárcio S. Santos ◽  
Tarcisio M. Silva ◽  
Juliana C. Cardoso ◽  
Ricardo L. C. de Albuquerque-Júnior ◽  
Aleksandra Zielinska ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Filamentous Fungi ◽  
Entomopathogenic Fungi ◽  
Antimicrobial Agents ◽  
Insect Pests ◽  
Insect Control ◽  
Biological Synthesis ◽  
Biological Methods ◽  
Potential Use

Silver nanoparticles are widely used in the biomedical and agri-food fields due to their versatility. The use of biological methods for the synthesis of silver nanoparticles has increased considerably due to their feasibility and high biocompatibility. In general, microorganisms have been widely explored for the production of silver nanoparticles for several applications. The objective of this work was to evaluate the use of entomopathogenic fungi for the biological synthesis of silver nanoparticles, in comparison to the use of other filamentous fungi, and the possibility of using these nanoparticles as antimicrobial agents and for the control of insect pests. In addition, the in vitro methods commonly used to assess the toxicity of these materials are discussed. Several species of filamentous fungi are known to have the ability to form silver nanoparticles, but few studies have been conducted on the potential of entomopathogenic fungi to produce these materials. The investigation of the toxicity of silver nanoparticles is usually carried out in vitro through cytotoxicity/genotoxicity analyses, using well-established methodologies, such as MTT and comet assays, respectively. The use of silver nanoparticles obtained through entomopathogenic fungi against insects is mainly focused on mosquitoes that transmit diseases to humans, with satisfactory results regarding mortality estimates. Entomopathogenic fungi can be employed in the synthesis of silver nanoparticles for potential use in insect control, but there is a need to expand studies on toxicity so to enable their use also in insect control in agriculture.

scholarly journals Adenosine Triphosphatase in Isolated Bacterial Cell Membranes

1960 ◽  
Vol 235 (12) ◽  
pp. 3659-3662 ◽  
Author(s):  
Adolph Abrams ◽  
Peter McNamara ◽  
F. Bing Johnson
Keyword(s):  
Bacterial Cell ◽  
Adenosine Triphosphatase ◽  
Cell Membranes

Spice oleoresins containing antimicrobial agents improve the potential use of bio-composite films based on gelatin

2018 ◽  
Vol 17 ◽  
pp. 50-56 ◽  
Author(s):  
Kelly J. Figueroa-Lopez ◽  
Margarita María Andrade-Mahecha ◽  
Olga Lucía Torres-Vargas
Keyword(s):  
Antimicrobial Agents ◽  
Composite Films ◽  
Potential Use

Glutaraldehyde Nonbiologic Monitors

1990 ◽  
Vol 11 (8) ◽  
pp. 439-442 ◽  
Author(s):  
Donald J. Kleier ◽  
Robert E. Averbach
Keyword(s):  
Bacterial Cell ◽  
Contact Time ◽  
Cell Membranes ◽  
Test Results ◽  
Chemical Solution ◽  
Enzyme Systems ◽  
Prolonged Contact ◽  
Free Aldehyde ◽  
Aldehyde Groups ◽  
Bacterial Type

Glutaraldehyde was first synthesized by Harries and Tank in 1908, and first marketed as a chemosterilizer in 1963. Since that time, glutaraldehyde has been used extensively as a disinfectant and chemical sterilizing solution. Even though it is generally agreed that moist heat is the preferred method of sterilization for medical, dental and hospital instruments, glutaraldehyde is a relatively safe, simple-to-use and effective chemical solution that can sterilize heat-sensitive materials.Glutaraldehyde (1,5-pentanedial) has two free aldehyde groups that combine irreversibly with bacterial cell membranes and enzyme systems. These properties give glutaraldehyde its biocidal effect. Contact time with glutaraldehyde is critical if sterilization, rather than disinfection, is to be achieved. Sterilization time ranges from minutes to ten hours, depending upon bacterial type and conditions of the test results. Sterilization with glutaraldehyde solutions usually requires prolonged contact times. Manufacturer instructions must be strictly followed.

scholarly journals Comparative in vitro activities of trovafloxacin (CP-99,219) against 221 aerobic and 217 anaerobic bacteria isolated from patients with intra-abdominal infections.

1997 ◽  
Vol 41 (10) ◽  
pp. 2312-2316 ◽  
Author(s):  
D M Citron ◽  
M D Appleman
Keyword(s):  
Antimicrobial Agents ◽  
Single Agent ◽  
Anaerobic Bacteria ◽  
Pseudomonas Sp ◽  
Agar Dilution ◽  
Abdominal Infections ◽  
Potential Use ◽  
Polymicrobial Infections

Four hundred thirty-eight bacteria cultured from specimens of patients with serious intra-abdominal infections were tested by agar dilution against trovafloxacin and other quinolones and antimicrobial agents. Trovafloxacin inhibited 435 strains (99.3%) at < or =2 microg/ml. All the quinolones had similar activities against Enterobacteriaceae and Pseudomonas sp., but trovafloxacin showed superior activities against streptococci, enterococci, and anaerobic organisms. Because of its excellent in vitro activities against diverse bacteria, trovafloxacin has potential use as a single agent for polymicrobial infections.

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