نتایج جستجو برای: negative bacteria films were more responsive against gram

تعداد نتایج: 5262068  

Azadeh Manayi Fatemeh Fouladi Ladan Salimi Mohammad Reza Fazeli Narguess Yassa, Noor Sabri Seyed Hamid Reza Alavi, Zahra Tofighi

       Antimicrobial activity of the polar and nonpolar extracts of the roots and aerial parts of Peucedanum ruthenicum M. Bieb., Johreniopsis seseloides (C. A. Mey.) Pimenov and Cervaria cervariifolia (C. A. Mey.) Pimenov were examined against gram-positive and gram-negative bacteria. The polar extracts of the roots and aerial parts displayed no activity against bact...

Journal: :Journal of Microbiology, Immunology and Infection 2010

ژورنال: Medical Laboratory Journal 2017
Chalabian, Firoozeh, Goudarziafshar , Hamid, Katouzian, Fatemeh, Rashki , Somayeh , Tamoradi, Taiebeh,

ABSTRACT         Background and objectives: Synthesis and characterization of several metal complexes (metal ions: Co2+, Ti4+ and Ce3+) of macroacyclic Schiff base ligand have been reported. The Schiff base ligand is prepared from the condensation reaction of 1, 4-di-(4-fluoro-2-aminophenoxy) butane with salicylaldehyde in ethanol. In addition, antibacterial ...

Journal: :Advanced Functional Materials 2022

Multidrug-resistant bacteria have become a global health problem for which new prophylactic strategies are now needed, including surface-coatings hospital spaces and medical equipment. This work reports the preparation functional validation of metal-organic framework (MOF) based composite triggered controlled release iodine, an antimicrobial element that does not generate resistance. It compris...

2015

Extracts of Riccinus communis were made in mid-polar solvent acetone and non-polar solvent, petroleum ether by using fresh stem, leaves and tender fruits. Bioassay and Minimum Inhibitory Concentration (MIC) was done against various gram positive and gram negative bacteria by agar cup method. Significant activity was found in all acetone extracts against mainly gram positive bacteria and some gr...

Objective(s): Due to nanocomposites antimicrobial properties, one of the most extensive usages of nano-products is in packing industry. Thus, the production of packages with nanotechnology can effectively prevent against a variety of microorganisms. In this study, the silicon dioxide nanoparticles the poly (lactic acid) PLA films on antimicrobial and permeability was investigated. Methods...

Sushil Bhargava,

Sudarshan Churna (SC) is very potent Ayurvedic medicine ; composed of 42 medicinal plants, which is used traditionally in treatment of malaria, viral fever, and bacterial infection. The Present study was designated to evaluate the antimicrobial activity of aqueous extract of Sudarshan Churna (ASC) using the paper disc diffusion method. The ASC was found active against the gram-negative b...

Journal: :journal of medical bacteriology 0
mohammad mohammadzadeh 1department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, iran. mahnaz tavakoli 1department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, iran. abolfazl mohebi 2department of microbiology, faculty of science, islamic azad university, karaj, iran. samad aghayi 2department of microbiology, faculty of science, islamic azad university, karaj, iran.

background :   imipenem-resistant gram negative bacteria, resulting from metallo-beta-lactamase (mbls)-producing strains have been reported to be among the important causes of nosocomial infections and of serious therapeutic problem worldwide. because of their broad range, potent carbapenemase activity and resistance to inhibitors, these enzymes can confer resistance to almost all beta-lactams....

2009
M. H. Lodhia K. R. Bhatt V. S. Thaker

Essential oils extracted from flower petals of palmarosa (Cymbopogon martini), evening primrose (Primula rosea), lavender (Lavandula angustifolia) and tuberose (Polianthus tuberosa) were tested for their antibacterial activities against gram-positive and gram-negative bacteria. Different concentrations of each essential oil ranging from 10-100% were tested. Both gram-positive and gram-negative ...

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