نتایج جستجو برای: pseudomonas biofilm

تعداد نتایج: 73933  

Journal: :Journal of visualized experiments : JoVE 2015
Xiaobao Li Jisun L Song Alessandro Culotti Wei Zhang David L Chopp Nanxi Lu Aaron I Packman

Biofilms are surface-attached microbial communities that have complex structures and produce significant spatial heterogeneities. Biofilm development is strongly regulated by the surrounding flow and nutritional environment. Biofilm growth also increases the heterogeneity of the local microenvironment by generating complex flow fields and solute transport patterns. To investigate the developmen...

B. Elayarajah R. Rajesh R. S. Kumaravel, S. F. Maleeka Begum

Objective: Intravascular catheter-associated infection has been increasing hospitalization in post-surgery patients mainly due to microbial colonization of the catheter surface and formation of a superficial biofilm layer. The present study is aimed in developing an effective antibacterial device which can prevent colonization of organisms by modification of catheter. Methods: In the present st...

2015
Divya Prakash Gnanadhas Monalisha Elango S. Janardhanraj C. S. Srinandan Akshay Datey Richard A. Strugnell Jagadeesh Gopalan Dipshikha Chakravortty

Many bacteria secrete a highly hydrated framework of extracellular polymer matrix on suitable substrates and embed within the matrix to form a biofilm. Bacterial biofilms are observed on many medical devices, endocarditis, periodontitis and lung infections in cystic fibrosis patients. Bacteria in biofilm are protected from antibiotics and >1,000 times of the minimum inhibitory concentration may...

2017
Stefania De Marco Miranda Piccioni Rita Pagiotti Donatella Pietrella

Pseudomonas aeruginosa is a common biofilm-forming bacterial pathogen implicated in lung, skin, and systemic infections. Biofilms are majorly associated with chronic lung infection, which is the most severe complication in cystic fibrosis patients characterized by drug-resistant biofilms in the bronchial mucus with zones, where reactive oxygen species concentration is increased mainly due to ne...

Journal: :Pathogens and disease 2013
Kusum Harjai Anju Bala Ravi K Gupta Radhika Sharma

Pseudomonas aeruginosa is well known for its ability to form biofilm on indwelling medical devices. These biofilms are difficult to remove because of their high tolerance to conventional antibiotics. Therefore, there is a need to look for alternative agents such as medicinal plants, which can eradicate or inhibit biofilm effectively. This study evaluated the role of neem in inhibiting biofilm f...

P. aeruginosa has been mentioned as the major causative agents of nosocomial infections. Pseudomonas infections are often serious and show different resistance to treatment due to distribution of antimicrobial resistance. Meanwhile, some strains are also able to form biofilm during contamination, which help bacteria to be even more persisyant to yreatment. We examined the antibiotic resistance ...

2016
Summaiya Mulla Ambuj Kumar Sangita Rajdev

Context: MIC results can be misleading for treatment of biofilm associated. The Minimum Biofilm Eradication Concentration (MBEC) measures the determination to be made for a biofilm susceptibility to antibiotics. Aims: Assessment of biofilm production and comparison of the MIC and MBEC assays evaluate differences in the antibiotic sensitivity patterns of different clinical bacterial isolates fro...

Journal: :Antimicrobial agents and chemotherapy 2014
Fany Reffuveille César de la Fuente-Núñez Sarah Mansour Robert E W Hancock

Biofilm-related infections account for at least 65% of all human infections, but there are no available antimicrobials that specifically target biofilms. Their elimination by available treatments is inefficient since biofilm cells are between 10- and 1,000-fold more resistant to conventional antibiotics than planktonic cells. Here we describe the synergistic interactions, with different classes...

2016
Vinoth Wigneswaran Kristian Fog Nielsen Claus Sternberg Peter Ruhdal Jensen Anders Folkesson Lars Jelsbak

BACKGROUND Although a transition toward sustainable production of chemicals is needed, the physiochemical properties of certain biochemicals such as biosurfactants make them challenging to produce in conventional bioreactor systems. Alternative production platforms such as surface-attached biofilm populations could potentially overcome these challenges. Rhamnolipids are a group of biosurfactant...

Journal: :jundishapur journal of microbiology 0
saba rehman department of microbiology and molecular genetics, quaid-e-azam campus, university of the punjab, lahore, pakistan; department of microbiology and molecular genetics, the women university multan, multan, pakistan shahbaz mujtaba ghauri department of ear, nose and throat, mayo hospital, king edward medical university, lahore, pakistan anjum nasim sabri department of microbiology and molecular genetics, quaid-e-azam campus, university of the punjab, lahore, pakistan; department of microbiology and molecular genetics, quaid-e-azam campus, university of the punjab, lahore-54590, pakistan. tel: +92-4235952833, fax: +92-4299230481

conclusions the bacterial isolates exhibited strong biofilm formation potential, while the extracts of acacia arabica significantly inhibited biofilm formation among the isolates and, therefore, could be executed in the development of cost-effective biofilm inhibitor medicines. results pseudomonas aeruginosa (kc417303-05), staphylococcus hemolyticus (kc417306), and staphylococcus hominis (kc417...

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