نتایج جستجو برای: pathogenic viruses and bacteria

تعداد نتایج: 16867564  

Journal: :international journal of environmental research 2014
j. li h. wang y. liu m. lin x. liu

waterborne outbreaks of pathogenic bacteria from contaminated water are serious threats forpublic health. coliform bacteria have been regarded as one of the most important indicators for monitoringpathogenic bacteria. to address potential pathogenic bacterial outbreaks, the distribution and diversity ofcoliform bacteria in jiahe river, which flows through densely-populated urban area in china, ...

Journal: :journal of medical microbiology and infectious diseases 0
darioush gharibi faculty of veterinary medicine, shahid chamran university of ahvaz, khuzestan, iran. mohammad khosravi faculty of veterinary medicine, shahid chamran university of ahvaz, khuzestan, iran. zohreh hosseini faculty of veterinary medicine, shahid chamran university of ahvaz, khuzestan, iran. fatemeh boroun faculty of veterinary medicine, shahid chamran university of ahvaz, khuzestan, iran. seyedeh kolsum barzgar faculty of veterinary medicine, shahid chamran university of ahvaz, khuzestan, iran. ali forughi far faculty of veterinary medicine, shahid chamran university of ahvaz, khuzestan, iran.

introduction: aloe vera compounds have inhibitory activity on fungi, bacteria, and viruses. this study examines the antibacterial activity of a. vera purified extracts including gel, boiled skin, boiled gel, and distilled extract against pathogenic bacteria, staphylococcus aureus, methicillin-resistant s. aureus (mrsa), klebsiella pneumonia and pseudomonas aeruginosa were elucidated. method: th...

Background: Lactic acid bacteria interfere to improve the taste of food products and and to prevent the growth of food spoilage organisms and pathogens with producing antimicrobial substances called bacteriocin. To study the antagonistic effect of isolated Lactobacillus from soil where native yogurt is processed against pathogenic bacteria is the purpose of this study. Methods: In this cross-s...

Journal: :Microbiology Australia 2023

Nanomaterials, specifically nano-topographies, have been explored for their antimicrobial activity toward bacteria, fungi and even viruses. A decade ago, we discovered that the nanopillar topography of insect wings such as cicadas, dragonflies damselflies, were not repelling bacteria previously surmised, but attaching consequently being killed. The nature bactericidal effect associated with nan...

Journal: :Catalysts 2021

This review presents an update describing binary and ternary semiconductors involving interfacial charge transfer (IFCT) in composites made up by TiO2, CuO, Ag2O Fe2O3 used microbial disinfection (bacteria viruses). The mechanism, kinetics generation of reactive oxygen species (ROS) solution under solar/visible light are discussed. surface properties the photocatalysts their active catalytic si...

Journal: :Coatings 2022

Pathogenic microbes, such as bacteria and viruses, can spread quickly via contaminated surfaces. Most of these pathogenic microorganisms survive on surfaces for a long time. Touching lead to the transmission human body cause serious illnesses. ZrN-Cu coatings containing different amounts Cu were deposited using an industrial PVD system, their ability inhibit inactivate SARS-CoV-2 virus was test...

2014
Roland Grunow G. Ippolito D. Jacob U. Sauer A. Rohleder A. Di Caro R. Iacovino

Quality assurance exercises and networking on the detection of highly infectious pathogens (QUANDHIP) is a joint action initiative set up in 2011 that has successfully unified the primary objectives of the European Network on Highly Pathogenic Bacteria (ENHPB) and of P4-laboratories (ENP4-Lab) both of which aimed to improve the efficiency, effectiveness, and response capabilities of laboratorie...

2013
R. Keary O. McAuliffe R. P. Ross C. Hill A. Coffey

Bacteriophages (phages) are viruses that specifically infect bacterial cells. Phages were first discovered in the early 1900s and soon after, the concept of phage therapy was conceived. Phage therapy involves the application of bacterial viruses to eliminate pathogenic bacteria. The results of early human trials were hampered by limited knowledge of phage biology, poor experimental design and i...

2004
Jie Wu Hsueh-Chia Chang

Detection of microorganisms such as bacteria and viruses is important in a variety of fields such as bioscience research, medical diagnosis, screening analysis in food processing and for environmental testing. Bacterial contamination of food, water and the environment is on the rise around the globe. The Centers for Disease Control and Prevention (CDC) estimates 76 million food-borne illnesses ...

2012
M. N. Rojas-Valencia

Although the use of ozone in wastewater treatment plants is not a common practice, it has been known for over one hundred years. The ozone capacity as wastewater disinfectant was acknowledged in 1886 by Meritens. The first industrial application of ozone in water treatment was performed in 1893 in Holland. Since that time, its use has spread in Europe and the USA. Owing to its oxidizing propert...

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