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28 articles for “Biofilm”
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Research ArticleOpen accessEvery word in the titleRole of Plasmid in Production of Acetobacter Xylinum BiofilmsAbbas Rezaee, Sanaz Solimani, Mehdi ForozandemogadamAcetobacter xylinum has the ability to produce cellulotic biofilms. Bacterial cellulose is expected to be used in many industrial or biomedical materials for its unique characteristics. A. xylinum contains a complex system of plasmid DNA molecules. A 44 kilobases (kb) plasmid was isolated in wild type of A. xylinum. To improve the cellulose producing ability of A. xylinum, role of … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 3 · 30 Sep 2005 · 7,498 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleHemodynamic Catheters: The Reprocessing, Cleanliness and in vitro Biofilm Formation by Enterococcus faecium in a Continuous Flow ModelCleber Galdino da Silva, Edson Pires de Oliveira, Ednalva Miranda Guizi et al.Reprocessing single-use devices to cut costs is a common practice in hospitals around the world. In Brazil, there are few studies of reprocessing hemodynamic catheters and thus, this study aimed to evaluate the effectiveness of reprocessing hemodynamic catheters before and after biofilm formation in vitro using a continuous flow model. We used a sterility test and Scanning Electron Microscopy (SEM) … …American Journal of Infectious Diseases, Vol. 11, Issue 2 · 24 Jul 2015 · 7,808 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCharacteristics of Nitrogen Removal from Old Landfill Leachate by Sequencing Batch Biofilm ReactorLong Tengrui, Anas F. Al-Harbawi, Lin Ming Bo et al.Municipal landfill leachate is a high strength wastewater characterized by high concentrations of organics and ammonia and potentially containing toxic materials. The paper reports the results of a laboratory scale investigation aimed at evaluating the effectiveness of mature municipal landfill leachate treatment by a biological stage (used SBBR as a biological treatment) to study the nitrogen removal capabilities for treatment … …American Journal of Applied Sciences, Vol. 4, Issue 4 · 30 Apr 2007 · 8,039 accessesView PDFCite
Literature ReviewOpen accessIn the keywordsOn Destructive Peri-implant Bone LossAndre J. ViljoenDestructive peri-implant bone loss is distressing for both the patient and the treating dentist(s). In severe cases peri-implant bone loss may cause jawbone mutilation, making re-treatment highly complex or impossible and violating the treatment philosophy of “first, do no harm”. There are a multitude of causes of bone loss around a dental implant. These include, but are not limited to, … …Current Research in Dentistry, Vol. 10, Issue 1 · 25 Nov 2019 · 7,472 accessesView PDFCite
Research ArticleOpen accessIn the keywordsModelisation of Nitrification under Inhibited Environment by Moving Bed Bio-Film Reactor TechniquePham Thi Hong Duc, Le Van Cat, Jean-Luc VaselProblem statement: Nitrification by Moving Bed Biofilm Reactor (MBBR) involves physical, chemical and biological processes to remove toxic ammonia for aquaculture that are governed by a variety of parameters, like substrate and dissolved oxygen concentrations, organic matters, temperature, pH, alkalinity and turbulence level, which impact negatively or positively on nitrification kinetics. Approach: The situation becomes more serious as the reaction … …American Journal of Environmental Sciences, Vol. 6, Issue 6 · 31 Dec 2010 · 6,946 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAn Overview of the Antimicrobial Activity of Some Microbial EnzymesAkram N. Salah, Hayam Atallah AlwabsiEnzymes are substances produced by living organisms that are used to catalyze some biological and biochemical reactions as they either catalyze some types of polysaccharides and proteins or lyse complex materials such as polymers and lipids. Microbial enzymes are defined as the enzymes that can be extracted and purified from bacterial strains such as Bacillus spp., Pseudomonas spp., Streptomyces, or … …American Journal of Biochemistry and Biotechnology, Vol. 20, Issue 2 · 11 Jun 2024 · 6,081 accessesView PDFCite
Research ArticleOpen accessIn the keywordsNitrifying, Denitrifying and Heterotrophic Biomass Present in Moving Bed-ReactorAndreliza Carolina Del Grossi Oliveira, Camila Zoe Correa, Kátia Valéria Marques Cardoso Prates, Deize Dias LopesThis study was carried out to evaluate the main bacterial communities related to the removal of nitrogen in a moving bed-reactor treating landfill leachate, relating the physico-chemical parameters with the existence of these organisms in the mixed liquor (non-attached microorganisms) and Support Material (SM). The system was operated in two phases: Phase I (without effluent recirculation) and II (with recirculation, … …American Journal of Environmental Sciences, Vol. 13, Issue 1 · 25 Jan 2017 · 7,628 accessesView PDFCite
Research ArticleOpen accessIn the keywordsMULTI-TRAITS OF NON-PATHOGENIC FLUORESCENT PSEUDOMONAS AND EVALUATION OF THEIR POTENTIEL AS BIOCONTROL AGENTSMehri Inès, Turki Yousra, Ben Rajeb Asma et al.In recent years, certain strains of fluorescent pseudomonads called PGPB have drawn attention due to their abilities to promote plant growth. Therefore, in this investigation, we have explored the adhesive properties, the phytostimulator effects and the biocontrol activities of 40 isolates, with the aim to select potential inoculants to improve crop yields. Ten different colony morphotypes were detected on CRA … …American Journal of Environmental Sciences, Vol. 10, Issue 2 · 16 Apr 2014 · 7,236 accessesView PDFCite
Research ArticleOpen accessIn the keywordsBioaugmentative Approaches for Dairy Wastewater TreatmentIrina Schneider, Yana TopalovaProblem statement: The achievement of a good ecological status of water receivers after discharge of waste or partially treated water from dairy industry requires harmonic interaction between water treatment technology and self-purification processes. Approach: The present research included two modules. First: an anaerobic treatment process for dairy wastewater in broadly spread sequencing batch bioreactor with fixed biomass was studied. As … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 4 · 13 Dec 2010 · 8,894 accessesView PDFCite
Case ReportOpen accessIn the abstractHistopathology of Microbially Induced Corrosion and Cluster Failure of Moderately Rough Surface Oral Implants in a Resident Bone MicrobiotaStephen Nelson, Helen Hu et al.This case report presents as a maxillary "cluster-failure", where six moderately rough-surface oral implants (1-2 microns) were installed to support a full-arch hybrid bridge. Understanding cluster failures requires the acknowledgment of biofilm science that recognizes the persistence of bacterial infection in bone following extraction and the need to bioremediate the bone-bed, by surgical debridement, before implant installation. The patient, a … …Current Research in Dentistry, Vol. 15, Issue 1 · 28 Feb 2024 · 8,482 accessesView PDFCite