Topic
Biofilm matrix
About: Biofilm matrix is a research topic. Over the lifetime, 1589 publications have been published within this topic receiving 110140 citations.
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TL;DR: In this paper, the authors assessed the adhesion, detachment kinetic and biofilm formation of Staphylococcus aureus isolates from food services surfaces on stainless steel and polypropylene surfaces when cultivated in a vegetable-based broth at 7 and 28°C, and the efficacy of peracetic acid and sodium hypochlorite in removing the bacterial cells from the matrix of the preformed biofilm.
122 citations
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TL;DR: The initial step in biofilm formation is adherence of planktonic organisms to the catheter surface and attached organisms divide to form microcolonies and secrete an extracellular polysaccharide matrix.
122 citations
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TL;DR: The present review describes the antibiofilm properties of chitosan and its derivatives against the pathogenic bacteria and summarizes the mechanisms of biofilm inhibition exhibited by these molecules.
121 citations
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01 Jan 2000TL;DR: The biofilm is explored here as an important structural matrix to partition microbial extracellular activities and effectively promote heterogeneity over very small (i.e., molecular) spatial scales.
Abstract: It is now well-recognized that the majority, and often most active fractions, of microbial cells in many natural systems occur as surface-associated biofilms. In sedimentary environments, biofilm formation represents an important functional adaptation for microbial life. At the level of an individual sediment particle, the biofilm community represents a cacophony of cellular and extracellular processes enclosed within an amorphous biofilm. Recent studies using new analytical approaches now suggest that the seemingly amorphous biofilm instead may be a highly structured system, one in which microbial cells actively manipulate their extracellular polymers and overall microenvironment to accomplish specific tasks. At microspatial scales (nanometers to micrometers), biofilm polymers are important in sequestering of nutrients, localization of extracellular enzymes, and providing a protective and stabilizing microenvironment for cells. Examination of the three-dimensional nature of microbial biofilm communities and activities through the use of nuclear magnetic resonance (NMR) spectroscopy, confocal laser microscopy (CLM), atomic-force microscopy (AFM) and other techniques are beginning to provide quantitative evidence for microscale partitioning within biofilms. In light of these new data, the biofilm is explored here as an important structural matrix to partition microbial extracellular activities and effectively promote heterogeneity over very small (i.e., molecular) spatial scales. Structuring and partitioning may occur through the formation of “exopolymer-mediated microdomains.” These are regions of a biofilm matrix where specific types of exopolymers are concentrated and impart unique physical/chemical properties to the biofilm. Accumulating evidence, derived from isotope sorption studies, electron microscopy, and CLM supports this idea. The presence of exopolymer microdomains may provide microorganisms with a structuring mechanism to spatially segregate extracellular activities over small spatial scales.
121 citations
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01 Oct 2000
TL;DR: A review with 60 refs as discussed by the authors discusses the role of extracellular polymeric substances (EPS) as microbial aggregate construction material, the cohesiveness of matrix polymers, and role of EPS in microbial aggregation.
Abstract: A review with 60 refs. Topics discussed include microbial aggregates, the role of extracellular polymeric substances (EPS) as microbial aggregate construction material, the cohesiveness of matrix polymers, and the role of EPS in microbial aggregation.
120 citations