نتایج جستجو برای: bacterial biofilm

تعداد نتایج: 222381  

2014
Sourabh Dwivedi Rizwan Wahab Farheen Khan Yogendra K. Mishra Javed Musarrat Abdulaziz A. Al-Khedhairy

The formation of bacterial biofilm is a major challenge in clinical applications. The main aim of this study is to describe the synthesis, characterization and biocidal potential of zinc oxide nanoparticles (NPs) against bacterial strain Pseudomonas aeruginosa. These nanoparticles were synthesized via soft chemical solution process in a very short time and their structural properties have been ...

2015
Jinyan Luo Wen Qiu Lei Chen Syed Ishtiaq Anjum Menghao Yu Changlin Shan Mehmoona Ilyas Bin Li Yanli Wang Guochang Sun Jan Schirawski

Biofilm formation is important for virulence of a large number of plant pathogenic bacteria. Indeed, some virulence genes have been found to be involved in the formation of biofilm in bacterial fruit blotch pathogen Acidovorax citrulli. However, some virulent strains of A. citrulli were unable to format biofilm, indicating the complexity between biofilm formation and virulence. In this study, v...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Knut Drescher Jörn Dunkel Carey D Nadell Sven van Teeffelen Ivan Grnja Ned S Wingreen Howard A Stone Bonnie L Bassler

Many bacterial species colonize surfaces and form dense 3D structures, known as biofilms, which are highly tolerant to antibiotics and constitute one of the major forms of bacterial biomass on Earth. Bacterial biofilms display remarkable changes during their development from initial attachment to maturity, yet the cellular architecture that gives rise to collective biofilm morphology during gro...

Journal: :Journal of clinical and diagnostic research : JCDR 2015
Ashoka Mahapatra Nupur Padhi Dharitri Mahapatra Mamta Bhatt Debasish Sahoo Swetlina Jena Debabrata Dash Nirupama Chayani

CONTEXT A biofilm is a layer of microorganisms contained in a matrix (slime layer), which forms on surfaces in contact with water. Their presence in drinking water pipe networks can be responsible for a wide range of water quality and operational problems. AIM To identify the bacterial isolates, obtained from water pipelines of kitchens, to evaluate the water quality & to study the biofilm pr...

Journal: :Antimicrobial agents and chemotherapy 2015
Jacob A Koopman Joanna M Marshall Aditi Bhatiya Tadesse Eguale Jesse J Kwiek John S Gunn

Biofilms have been widely implicated in chronic infections and environmental persistence of Salmonella enterica, facilitating enhanced colonization of surfaces and increasing the ability of the bacteria to be transmitted to new hosts. Salmonella enterica serovar Typhi biofilm formation on gallstones from humans and mice enhances gallbladder colonization and bacterial shedding, while Salmonella ...

2015
Toshiyuki Sakimura Shiro Kajiyama Shinji Adachi Ko Chiba Akihiko Yonekura Masato Tomita Hironobu Koseki Takashi Miyamoto Toshiyuki Tsurumoto Makoto Osaki

We investigated biofilm formation and time of vancomycin (VCM) resistance expression after adhesion to a metal surface in Staphylococcus epidermidis. Biofilm-forming Staphylococcus epidermidis with a VCM MIC of 1 μg/mL was used. The bacteria were made to adhere to a stainless steel washer and treated with VCM at different times and concentrations. VCM was administered 0, 2, 4, and 8 hours after...

2013
Greg Tram Victoria Korolik Christopher J. Day

Biofilms are recognised as an important contributor to bacterial resistance towards traditional antimicrobial treatments. Assessment of biofilm formation currently relies on a 96 well microtitre plate assay, which usually involves the colourimetric detection of stain (typically crystal violet) removed from previously stained biofilm. The amount of crystal violet released is then used as a quant...

2015
Pedro Paulo Cardoso Pita José Augusto Rodrigues Claudia Ota-Tsuzuki Tatiane Ferreira Miato Elton G. Zenobio Gabriela Giro Luciene C. Figueiredo Cristiane Gonçalves Sergio A. Gehrke Alessandra Cassoni Jamil Awad Shibli

The establishment of the subgingival microbiota is dependent on successive colonization of the implant surface by bacterial species. Different implant surface topographies could influence the bacterial adsorption and therefore jeopardize the implant survival. This study evaluated the biofilm formation capacity of five oral streptococci species on two titanium surface topographies. In vitro biof...

Introduction: Nowadays, the treatments of infectious disease are regarded difficult due to increasing antibiotic resistance among pathogenic bacteria, which the reason may be placing of microorganisms in a structure named biofilm. Biofilms are complex structures consisting of surface-attached bacteria. Therefore, it is essential to find new compounds in order to remove and inhibit biofilms. Thi...

Journal: :nephro-urology monthly 0
yutaka isakozawa department of medical engineering, school of health science, kyusyu university of health and welfare, miyazaki, japan; 1714-1 yoshinomachi, nobeoka, miyazaki, 882-8508, japan. tel: +81-982235610, fax: +81-982235610 heihachi migita department of medical engineering, school of health science, kyusyu university of health and welfare, miyazaki, japan shingo takesawa department of medical engineering, school of health science, kyusyu university of health and welfare, miyazaki, japan

background central dialysate fluid delivery systems (cdds) are used by dialysis centers in japan, and although these systems are effective at delivering dialysate, they have a complex piping network with numerous sites where contamination can develop. in japan, cleaning disinfectants have been clinically evaluated based on endotoxin levels and bacterial counts, but there have been no published ...

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