Formation of biofilms and microbial. Medical search. Frequent questions

An influence of natural organic substances and iron hydroxides on the formation of biofilms by microorganisms of groundwater in vitro has been assessed. (genetika.ru)
Microorganisms attach to surfaces and develop biofilms. (cdc.gov)
Rediscovery of a microbiologic phenomenon, first described by van Leeuwenhoek, that microorganisms attach to and grow universally on exposed surfaces led to studies that revealed surface-associated microorganisms (biofilms) exhibited a distinct phenotype with respect to gene transcription and growth rate. (cdc.gov)
These biofilm microorganisms have been shown to elicit specific mechanisms for initial attachment to a surface, development of a community structure and ecosystem, and detachment. (cdc.gov)
Van Leeuwenhoek, using his simple microscopes, first observed microorganisms on tooth surfaces and can be credited with the discovery of microbial biofilms. (cdc.gov)
5 ) in 1978 put forth a theory of biofilms that explained the mechanisms whereby microorganisms adhere to living and nonliving materials and the benefits accrued by this ecologic niche. (cdc.gov)
A biofilm comprises any syntrophic consortium of microorganisms in which cells stick to each other and often also to a surface. (wikipedia.org)
Biofilms can attach to a surface such as a tooth or rock, and may include a single species or a diverse group of microorganisms. (wikipedia.org)
The formation of a biofilm begins with the attachment of free-floating microorganisms to a surface. (wikipedia.org)
Disinfection methods currently used in water systems have been shown to be ineffective against legionella over the long-term, allowing recolonization by the biofilm-protected microorganisms. (frontiersin.org)
This is thanks to the build up of biofilms: a consortium of microorganisms that stick to each other, and often also to surfaces - the insides of water recover tubing, for instance. (yahoo.com)
Because of the formation and subsequent sloughing off of microbial biofilms from the inner surfaces of the plastic tubing, dental water is heavily contaminated with microorganisms and endotoxin. (cdc.gov)
These include uniformly increasing biofilm thicknesses on all grain surfaces, preferential local growth of biofilms (e.g., in regions where local flow velocities are smaller), and nonuniform distributions of microorganisms. (doe.gov)
A biofilm is a group of microorganisms-often a mix of bacteria, fungi, and amebas-that live together and release a slimy, glue-like substance, which allows them to stick to surfaces. (cdc.gov)

The microbial cells growing in a biofilm are physiologically distinct from planktonic cells of the same organism, which, by contrast, are single cells that may float or swim in a liquid medium. (wikipedia.org)

4,5 For example, Pseudomonas aeruginosa , an organism well-known for its capacity to form biofilms, is an opportunistic pathogen and is one of the top three causes of opportunistic human infections, 6 causing nosocomial infections in catheter lines, or chronically infecting the lungs of cystic fibrosis patients. (rsc.org)
Despite the reduction in culturability over time, all strains that recovered from starvation on solid-surface experiments retained their capacity to form biofilms after rehydration, an addition of nutrients, and changing temperature. (medscape.com)

Microbial contamination, antimicrobial resistance and biofilm formation of bacteria isolated from a high-throughput pig abattoir / Ghidini, S. (unipr.it)
1,2 The unique structure of biofilms protects bacteria from the surrounding environment, conferring a capacity for persistence against phagocytosis, oxidative stresses, nutrient/oxygen restriction, metabolic waste accumulation, interspecies competition, and conventional antimicrobial agents. (rsc.org)
3,6 Biofilm formation by P. aeruginosa is responsible for antimicrobial tolerance and causes major problems for treatment of infections. (rsc.org)
Expanding our microbial ecology knowledge at the intersection of public health will lead us to new strategies to prevent infections and combat antimicrobial resistance, especially in healthcare settings. (cdc.gov)
However, more research is needed in the field of microbial ecology to expand upon and develop new therapeutic strategies that address colonization, healthcare-associated infections (HAIs), and antimicrobial resistance, all while considering patient safety and the implications for a patient's microbiome. (cdc.gov)

Biofilms may form on living (biotic) or non-living (abiotic) surfaces and can be prevalent in natural, industrial, and hospital settings. (wikipedia.org)
Bacteria can be found in planktonic form or in specific conditions, as sessile aggregates on both biotic and abiotic surfaces originating complex structures known as biofilm. (intechopen.com)
Tsiaprazi-Stamoua A., Ylla Monfort I., Romaní A.M., Bakalisa S., Gkatzionisa K. "The synergistic effect of enzymatic detergents on biofilm cleaning from different surfaces. (udg.edu)
Here, we investigated bacterial attachment, cell alignment and biofilm formation of Pseudomonas aeruginosa on periodic nano-pillar surfaces with different pillar spacing. (rsc.org)
Bacterial cells can colonize surfaces and form biofilms that consist of microbial cells embedded in extracellular polymeric substances (EPS). (rsc.org)
It is well known that orthodontic treatment may lead to increases in plaque retention which will cause several microbial associated negative consequences, such as decalcification of enamel surfaces (white spot lesions), caries, as well as gingival inflammation. (forsyth.org)
A practical approach utilized in this study involves the preparation of an antibacterial thin film on the surfaces, which can effectively inhibit and reduce biofilm formation and bacterial adherence. (nature.com)
CDC invests in microbial ecology research to study the interactions of microbes among people, animals, plants, food, and surfaces (e.g., counter tops), all of which can serve as sources of microbes that can lead to infection. (cdc.gov)
Yildiz is a leading authority on biofilms, microbial communities that grow on surfaces and are enclosed in a protective matrix. (ucsc.edu)
Applying this specific method of covering surfaces with nucleic acids to prevent biofilm buildup showed that in the terrestrial samples, microbial formation was reduced by about 74 percent. (yahoo.com)
As a result, the tubes' inner surfaces were free of biohazards during dental operations, improving the microbial quality of dental unit water and aerosols. (cdc.gov)
Biofilms are sessile microbial communities growing on surfaces, frequently embedded in a matrix of extracellular polymeric substances (also known as slime). (medscape.com)
These findings are consistent with a tendency of other Acinetobacter species to survive on dry surfaces, form biofilms, and contribute to nosocomial outbreaks. (medscape.com)
A biofilm is more likely to grow abundantly in places where water does not move, such as the inner surfaces of water pipes, water storage tanks, or water heaters. (cdc.gov)

The aim of this work was to assess the level of microbial contamination and resistance of bacteria isolated from a highthroughput heavy pig slaughterhouse (approx. (unipr.it)
Bath toys pose an interesting link between flexible plastic materials, potable water, external microbial and nutrient contamination, and potentially vulnerable end-users. (discovermagazine.com)
Initial contamination was recorded by image after biofilm grown. (bvsalud.org)
Alfa and colleagues [ 2 ] looked at the impact of improper positioning of the elevator lever of a duodenoscope on bacterial persistence, biofilm formation, and endoscope contamination. (medscape.com)
A statement to the public advising that tap water should be boiled before drinking because of suspected or known microbial contamination. (cdc.gov)

In this project, Microsoft is helping Princeton to better understand the mechanisms of biofilm formation by providing advanced technology that will greatly extend the type of research analysis capable today. (princeton.edu)
This in turn informs the design of subsequent experiments, to provide insight into the mechanisms of biofilm formation. (princeton.edu)
[ 10 ] Multiple biofilm-specific mechanisms are operated simultaneously in a reversible and transient manner contributing to the high levels of antibiotic resistance of biofilms, and these are distinct from the well-characterized intrinsic resistance mechanisms (e.g., expression of antibiotic-degrading enzymes, inducible decrease in antibiotic influx, inducible increase in antibiotic efflux and alteration in antibiotic target sites) employed by planktonic cells. (medscape.com)
However, the underlying mechanisms linking surface topography to the inhibition of microbial attachment and growth still remain unclear. (rsc.org)
Her basic research program focuses on understanding the molecular mechanisms of inter-species interaction and signal transduction during microbial biofilm formation and its relationship with oral health and diseases. (forsyth.org)
Dr. Wu has been studying the mechanisms of orthodontic associated microbial complications and developing tools for managing these complications. (forsyth.org)
Her lab studies molecular mechanisms of biofilm formation and their consequences in the infection cycle of the cholera pathogen Vibrio cholerae, which causes periodic, seasonal outbreaks of disease in many parts of the world. (ucsc.edu)
Insight into biofilm formation of wastewater treatment processes: Nitrogen removal performance and biological mechanisms. (bvsalud.org)

Biofilms have great importance for public health because of their role in certain infectious diseases and importance in a variety of device-related infections. (cdc.gov)
More than 65 percent of hospital-acquired infections manifest as biofilms. (sciencedaily.com)
One of the most intriguing and clinically relevant features of microbial biofilms is their significantly higher antibiotic resistance relative to their free-floating counterparts, which generates serious consequences for therapy of biofilm-associated infections. (medscape.com)
This undermines the effectiveness of the available treatment options and thus contributes to the persistence of microbial infections. (who.int)
3 Bacterial biofilms can cause persistent human infections and can foul the surface of medical devices. (rsc.org)
3,8 Therefore, it is important to develop biomaterials that can control biofilm growth thereby reduce infections. (rsc.org)
The bacterium spreads rapidly through contaminated water sources and intestinal infections - a cycle that is promoted by the formation of biofilms. (elifesciences.org)
The ability of C acnes to adhere to and form a biofilm, particularly on prosthetics, for example, is characteristic of the infections that it may cause. (medscape.com)
Three recent articles [ 1 , 2 , 3 ] highlight how our understanding of bacterial persistence and recent advances in disinfection modalities may provide a means for control of biofilms and nosocomial infections. (medscape.com)

In addition to her basic research, Dr. Wu has been conducting clinical and translational research to investigate dental-artificial materials associated with oral microbial pathogenesis and developing novel tools to manage these dental diseases. (forsyth.org)

however, the presence of candidal organisms within the overall biofilm lends credence to its role in the development and maintenance of denture stomatitis. (medscape.com)
The presence of deteriorating temporary soft denture lining material and an improperly matched cleanser (which generally is the case) is associated with an increased presence of candidal organisms within the biofilm. (medscape.com)

The biofilm bacteria can share nutrients and are sheltered from harmful factors in the environment, such as desiccation, antibiotics, and a host body's immune system. (wikipedia.org)
[ 20 ] Starvation is also found in biofilms owing to nutrient consumption by peripheral cells and reduced diffusion of oxygen and nutrients through biofilms. (medscape.com)
Based on the comparison of clean water and dirty water control bath toys, we argue that bath toy biofilms are influenced by (1) the organic carbon leaching from the flexible plastic material, (2) the chemical and biological tap water quality, (3) additional nutrients from care products and human body fluids in the bath water, as well as, (4) additional bacteria from dirt and/or the end-users' microbiome. (discovermagazine.com)
The injection of nutrients caused microbial growth and consequent reduction in permeability. (doe.gov)
However, in spite of its toughness, the matrix must remain permeable to nutrients and flexible so that the biofilm can continue to grow. (elifesciences.org)
These carbohydrates act as nutrients for biofilm bacteria, especially acidogenic and aciduric species. (bvsalud.org)

The long-range goal of this project is to use iodine-based rechargeable antibiofilm tubing to control the formation of dental unit waterline biofilms so as to reduce occupational exposure of DHCP to the biohazards. (cdc.gov)
Investigation into this cluster is currently ongoing, and preliminary site visit data report that dental unit waterline testing results showed microbial counts much higher than the level recommended by CDC. (cdc.gov)

and two reported that drying could effectively reduce biofilm regeneration. (hindawi.com)

A known antibiotic and antifungal compound produced by a soil microbe can inhibit another species of microbe from forming biofilms - -microbial mats that frequently are medically harmful -- without killing that microbe. (sciencedaily.com)
DAPG, or the DAPG-producing P. Protogens as a protobiotic, could be used to inhibit formation of harmful biofilms. (sciencedaily.com)
In particular, surface modifications that physically create rational surface topographies have attracted attention in recent years, and have shown to inhibit bacterial attachment and biofilm growth without the use of antimicrobials. (rsc.org)

Any drug impairing crucial processes for bacterial life will inevitably lead to the development of drug-resistant strains, whereas the inhibition of biofilm formation might prevent the onset of bacterial resistance. (intechopen.com)
The concentration of the chemicals tested as anti-biofilm agents was chosen based on cytotoxicity assays: the highest non-cytotoxic chemical concentration was used for biofilm inhibition assays, with dendrimer concentration 10-fold higher than polyamino-phenolic ligands. (frontiersin.org)

Thus, after complexing iodine onto plastic tubes, the new tubes were able to inactivate any approaching planktonic cells to prevent microbial adhesion/colonization, the first step in the formation of biofilms. (cdc.gov)
An ideal transmucosal implant surface exposed to the oral cavity is recommended to be highly polished to resist bacterial colonization and it is expected to allow the formation of an epithelial seal that prevents plaque accumulation leading to peri-implantitis [ 5 , 6 ]. (hindawi.com)
Red propolis extract showed antibacterial activity against the tested strains, exhibited acceptable cytotoxicity and reduced the colonization of S. mutans and L. casei in a biofilm membrane model. (bvsalud.org)

3 ) used scanning and transmission electron microscopy to examine biofilms on trickling filters in a wastewater treatment plant and showed them to be composed of a variety of organisms (based on cell morphology). (cdc.gov)
This study investigates the structure and microbial composition of aerobic sewage granules obtained from sequencing batch reactors which were operated with malthouse, dairy, brewery and synthetic wastewater. (tum.de)
This study highly contributes to the comprehension of structure, composition and microbial community dynamics in complex wastewater biofilms. (tum.de)

The binding of the positively charged aminoglycosides to the negatively charged biofilm matrix polymers of P. aeruginosa will delay the penetration of aminoglycosides, [ 13 ] while the penetration of fluoroquinolones occurs immediately and without delay. (medscape.com)
the effectiveness of fluoroquinolones on biofilm-growing P. aeruginosa is greater when compared with β-lactams, while both fluoroquinolones and β-lactams are less effective against biofilm-growing P. aeruginosa compared to planktonic cells. (medscape.com)
In this study, the anti-biofilm activity of previously fabricated polyamino-phenolic ligands and polyamidoamine dendrimers was investigated against legionella mono-species and multi-species biofilms formed by L. pneumophila in association with other bacteria that can be found in tap water ( Aeromonas hydrophila , Pseudomonas aeruginosa , Escherichia coli , Klebsiella pneumoniae ). (frontiersin.org)

In this section, we will focus on proteins involved in biofilm formation as useful targets for the development of new drugs that can effectively and specifically impair biofilm formation with slight effects on cell survival, thus avoiding the generation of drug-resistant strains. (intechopen.com)
Using the power of Microsoft's cloud and advanced machine learning, Princeton will be able to study different strains of biofilms in new ways to better understand how they work. (princeton.edu)
Bravo and colleagues [ 1 ] investigated the ability of Acinetobacter pittii strains to form biofilms after long-term desiccation if they were fed with nutrient media. (medscape.com)

Microbes form a biofilm in response to a number of different factors, which may include cellular recognition of specific or non-specific attachment sites on a surface, nutritional cues, or in some cases, by exposure of planktonic cells to sub-inhibitory concentrations of antibiotics. (wikipedia.org)
A biofilm is any group of microbes that stick together on a surface. (sciencedaily.com)

Cells may also communicate via quorum sensing, which may in turn affect biofilm processes such as detachment. (cdc.gov)
A greater understanding of biofilm processes should lead to novel, effective control strategies for biofilm control and a resulting improvement in patient management. (cdc.gov)
Biofilms also interfere with industrial processes, for example, by clogging, or corroding pipes, and by instigating corrosion on ships' hulls. (sciencedaily.com)
A.M. Romaní "Interaction between physical heterogeneity and microbial processes in subsurface sediments: a laboratory-scale column experiment. (udg.edu)
Gernot Arp's research group focuses on the environmental conditions and microbial processes in recent and fossil sedimentary environments, in marine and non-marine waters. (uni-goettingen.de)
Yet there is a dearth of information on the fundamental processes of microbial growth in porous media, and there are no suitable data to model the process of microbial plugging as it relates to sweep efficiency. (doe.gov)
A better understanding of the processes of microbial growth in porous media will help industry improve sweep efficiency in MEOR-a novel enhanced oil recovery method that has the potential to add reserves and production in America's mature oilfields at low cost and with little environmental impact. (doe.gov)

Unsurprisingly, they found fungi (mold), as well as 'dense biofilms with complex bacterial and fungal communities. (discovermagazine.com)
Oral biofilms are structured microbial communities consisting of a mixture of bacteria and fungi. (forsyth.org)

The MIC of antibiotics to biofilm-growing bacteria may be up to 1000-fold higher than that of planktonic bacteria. (medscape.com)
Chemical interaction with matrix molecules is hypothesized, based on SEM images and considering the low or absent anti-microbial activity on planktonic bacteria showed by flow cytometry. (frontiersin.org)

Proia L., Romaní A.M., Sabater, S. "Biofilm phosphorus uptake capacity as a tool for the assessment of pollutant effects in river ecosystems. (udg.edu)

Additionally, in vitro biofilm formation assays demonstrated that fifteen of these isolates can be classified as strong biofilm formers. (unipr.it)
To evaluate in vitro the effect of a red propolis ethanolic extract (RPE) in the prevention of growth of a cariogenic biofilm and its cytotoxic potential. (bvsalud.org)

[ 14 ] The penetration of oxacillin and cefotaxime (β-lactams), and vancomycin and teicoplanin (glycopeptides) is significantly reduced through Staphylococcus aureus biofilms, whereas that of amikacin (aminoglycoside), and rifampicin and ciprofloxacin (fluoroquinolones) was unaffected. (medscape.com)

Hyperthermophilic archaeon Pyrobaculum calidifontis produce bundling pili which are homologous to the bacterial TasA filaments, a major component of the extracellular matrix in bacterial biofilms, which contribute to biofilm stability. (wikipedia.org)

Since that time, the studies of biofilms in industrial and ecologic settings and in environments more relevant for public health have basically paralleled each other. (cdc.gov)
Biofilm is a complex matrix consisting of extracellular polysaccharides, DNA, and proteins that protect bacteria from a variety of physical, chemical, and biological stresses allowing them to survive in hostile environments. (intechopen.com)
As single-celled organisms bacteria are exposed to a variety of stresses, but their ability to form multicellular structures called biofilms helps them to grow and survive in challenging environments. (elifesciences.org)

The first colonist bacteria of a biofilm may adhere to the surface initially by the weak van der Waals forces and hydrophobic effects. (wikipedia.org)
These silicon spikes, which resembled a tiny forest, were then slicked with a silicon oil, creating a slippery surface which biofilms struggled to adhere to. (yahoo.com)

Ann, V., Freixa A., Butturini A., Romaní A.M. "Interplay between sediment properties and stream flow conditions influences surface sediment organic matter and microbial biomass in a Mediterranean river. (udg.edu)
Simple plugging of thief zones by biomass (biofilm) growing on injected or in-situ substrates is the straightforward, achievable approach to MEOR. (doe.gov)
Growth will be monitored at varying flow rates and carbon substrate concentrations using assays of carbon substrate utilization (TOC, GC) plus biomass protein and using HXRCT imaging to observe biofilm architecture/geometry. (doe.gov)
To model the effect of biofilm growth on permeability mechanistically, researchers use physically representative models of porous media to simulate the consequences of several modes of biomass growth at the grain scale. (doe.gov)

Some bacterial species engage in two well-documented social behaviors: the formation of surface-associated communities known as biofilms, and intercellular signaling, or quorum sensing. (nih.gov)
Both of the bacteria from this study are associated with plant roots, and understanding their interactions using DAPG and other secreted compounds could be important for creating healthy microbial soil communities for plants to grow in, possibly boosting agricultural yields, said Shank. (sciencedaily.com)
Biofilms - surface-associated communities of bacteria - are the leading cause of microbial infection worldwide and kill as many people as cancer does. (princeton.edu)
Here, we characterized biofilm communities inside 19 bath toys used under real conditions. (discovermagazine.com)
Bacterial community compositions were diverse, showing many rare taxa in real bath toys and rather distinct communities in control bath toys, with a noticeable difference between clean and dirty water control biofilms. (discovermagazine.com)
These microbial communities are home to helpful germs and pathogens (harmful germs). (cdc.gov)
We all have our own microbial communities, called microbiomes, on our skin and in our gut that help us maintain good health. (cdc.gov)
The character of biofilm communities of denture wearers, however, has been shown to be distinctive when compared with healthy non-denture-wearing individuals. (medscape.com)

Differences between root-adjacent and bulk-soil microbial composition are likely driven by the selective pressure exerted in the root environment, as certain microbial taxa are preferentially recruited 5 , 12 . (nature.com)
Effects of stand density on soil microbial community composition and enzyme activities in subtropical Cunninghamia lanceolate (Lamb. (scirp.org)

This study indicates lower order roots as the main point of microbial interaction with fine roots, suggesting that root homogenization could mask microbial recruitment signatures. (nature.com)

These microbial or fungal growths can clog filters in water processing systems and make astronauts sick. (yahoo.com)
The bacterial composition before and after granule development was examined and the identity of bacterial cells attached to ciliate stalks and fungal hyphae was investigated using a newly adapted FISH protocol for biofilm cryo-slices. (tum.de)

I study a range of topics in microbial biology, ecology, and evolution. (plymouth.ac.uk)
The 9th Symposium on Aquatic Microbial Ecology. (udg.edu)
CDC knows there is an important connection between microbial ecology and the health and wellbeing of people. (cdc.gov)
Leveraging microbial ecology to advance and protect our health involves a cross-cutting and dynamic effort from diverse collaborators, including public health experts, academic researchers, private industry, and regulatory experts. (cdc.gov)
Although scientists know that microbial ecology plays an important role in maintaining human health, there are remaining scientific questions. (cdc.gov)

Biofilm-associated cells can be differentiated from their suspended counterparts by generation of an extracellular polymeric substance (EPS) matrix, reduced growth rates, and the up- and down- regulation of specific genes. (cdc.gov)
Two major thrusts in the last decade have dramatically impacted our understanding of biofilms: the utilization of the confocal laser scanning microscope to characterize biofilm ultrastructure, and an investigation of the genes involved in cell adhesion and biofilm formation. (cdc.gov)
A cell that switches to the biofilm mode of growth undergoes a phenotypic shift in behavior in which large suites of genes are differentially regulated. (wikipedia.org)
For the study, first author Matthew Powers, an undergraduate student in Shank's lab, used a strain of B. subtilis--a species commonly used in lab experiments--that fluoresces when genes for biofilm formation are being shut off. (sciencedaily.com)

An important finding from this work was that the batch growth kinetics commonly measured to characterize microbial systems cannot be used to predict long term growth and nutrient uptake in a core. (doe.gov)

In man-made water systems microbial biofilms increase the resistance of legionella to disinfection, posing a significant threat to public health. (frontiersin.org)
These data suggest that the studied compounds, especially dendrimers, could be considered as novel molecules in the design of research projects aimed at the development of efficacious anti-biofilm disinfection treatments of water systems in order to minimize legionellosis outbreaks. (frontiersin.org)

Biofilm formation requires three different stages: cell attachment to a solid substrate, adhesion, and growth. (intechopen.com)

Therefore, the microbial diversity of biofilms in the different pipe materials and the effect on particle concentration on biofilm formation were investigated in this study. (mdpi.com)
Furthermore, this process increased microbial richness, but reduced microbial diversity. (bvsalud.org)

Legionnaires' disease is a potentially fatal pneumonia caused by Legionella pneumophila , an aquatic bacterium often found within the biofilm niche. (frontiersin.org)

A biofilm usually begins to form when a free-swimming bacterium attaches to a surface. (wikipedia.org)
They found that at low concentrations, the compound, DAPG (the acronym stands for 2,4-diacetylphloroglucinol), produced by the bacterium Pseudomonas protegens, did not kill the experimental target bacterium, Bacillus subtilis, but merely prevented it from forming biofilms. (sciencedaily.com)

Princeton is contributing world-leading expertise in experiments and modelling of microbial biofilms. (princeton.edu)
She is responsible for directing all archaeological aspects of the project including remotely operated vehicle investigations, developing baseline archaeological site characterizations, selection of locations for sediment coring and placement of microbial recruitment experiments, and co-authoring of pre-cruise plans, post-cruise reports, and project-related peer-reviewed publications. (noaa.gov)

Previous studies have shown that factors affecting microbial transmission include unreasonable design of instruments, endoscope damage, short cleaning time, low concentration of disinfectants, and inadequate drying [ 10 ]. (hindawi.com)
The results indicated that the average effluent concentration of chemical oxygen demand (COD), ammonia nitrogen (NH4+-N) and total nitrogen (TN) in the SBBR were 27.48, 1.41, and 13.52 mg L-1, respectively after biofilm formation. (bvsalud.org)
This study evaluates different approach such as photossensitizer (PS) concentration, irradiation time/energy, and the use of optical fiber for intracanal microbial reduction. (bvsalud.org)
ROS formation was improved using low concentration of PS, such as optical shield formation. (bvsalud.org)

Bacterial biofilms and dentin structural changes are some of the major challenges in the management of infected dentin tissue. (harvard.edu)
A structural switch controls the architecture of Vibrio cholerae biofilms by mediating the interactions between two matrix components. (elifesciences.org)
It was shown that these organisms obviously are involved in the structural formation process of granules. (tum.de)

Her lab also identified the regulatory network that governs V. cholerae biofilm formation and showed how extracellular and intracellular signals are integrated into regulation of biofilm formation. (ucsc.edu)
Because the lifecycle of V. cholerae depends on switching between planktonic and biofilm states, the components of the matrix must remain dynamic. (elifesciences.org)

Organic substances are important regulators of the biofilm formation. (genetika.ru)

Ahmed Nawaz 2020 "Microbial colonisation and degradation of plastic pollution in the marine environment" Open University. (plymouth.ac.uk)

c Scanning electron microscopy image revealing the complex structure and composition of these bath toy biofilms. (discovermagazine.com)

Inadequate drying of gastrointestinal endoscope working channels may promote microbial reproduction and biofilm formation, increasing the risk of infection in patients. (hindawi.com)
This review was designed to provide the current status of gastrointestinal endoscope drying, emphasize the importance of gastrointestinal endoscope drying, and evaluate the effectiveness of different drying methods of gastrointestinal endoscope in reducing residual droplets and microbial growth risk. (hindawi.com)
In this paper, the effectiveness of residual droplet, microbe, and biofilm prevention via gastrointestinal endoscope drying is systematically reviewed to provide evidence to improve gastrointestinal endoscope reprocessing guidelines. (hindawi.com)

The cells within the biofilm produce the EPS components, which are typically a polymeric conglomeration of extracellular polysaccharides, proteins, lipids and DNA. (wikipedia.org)
The biofilm matrix consists of polysaccharides, proteins, and DNA and constitutes a stubborn source that protects bacteria from a variety of physical, chemical, and biological stresses. (intechopen.com)
The biofilm matrix can act as a barrier to delay the diffusion of antibiotics into biofilms [ 11 ] because antibiotics may either react chemically with biofilm matrix components or attach to anionic polysaccharides. (medscape.com)

An established biofilm structure comprises microbial cells and EPS, has a defined architecture, and provides an optimal environment for the exchange of genetic material between cells. (cdc.gov)

Visualization of biofilms on the inner surface of bath toys. (discovermagazine.com)

If the time required for an antibiotic to penetrate biofilms is longer than the duration of antibiotic treatment, the slower penetration will explain the antibiotic resistance. (medscape.com)
Anna M. Romaní "Key role of streambed moisture and flash storms for microbial resistance and resilience to long- term drought. (udg.edu)

Biofilms can form on the teeth of most animals as dental plaque, where they may cause tooth decay and gum disease. (wikipedia.org)
Hydrophobicity can also affect the ability of bacteria to form biofilms. (wikipedia.org)
Understanding how biofilms form could enable new strategies to disrupt them. (princeton.edu)
Researchers at the Okinawa Institute of Science and Technology in Japan decided to look more closely at the functionality of biofilms, which led to the creation of a unique instrument for studying how biofilms form and for experimenting how drugs can influence them. (medgadget.com)
Bacterial ability to form biofilms was verified using a crystal violet colorimetric assay and testing cell viability by real-time quantitative PCR and Plate Count assay. (frontiersin.org)
Because of the potential to form biofilm, CDC recommends that all dental unit waterlines be treated regularly with disinfectants to meet the Environmental Protection Agency (EPA) regulatory standards for drinking water (i.e., ≤500 colony forming units (CFU)/mL of heterotrophic water bacteria). (cdc.gov)

demonstrated that far from being inert, the matrix components are dynamic structures that interact with each other to maintain the biofilm architecture. (elifesciences.org)

Much of the work in the last 2 decades has relied on tools such as scanning electron microscopy (SEM) or standard microbiologic culture techniques for biofilm characterization. (cdc.gov)
The present study gives a detailed characterization of bath toy biofilms and a better understanding of determinants for biofilm formation and development in systems comprising plastic materials in contact with potable water. (discovermagazine.com)

this tubing prevents the formation of biofilm and polymer slime that can cause poor taste, odors, and material degradation. (advancedwaterfilters.com)
The zone where natural degradation occurred was identified in the transition between two geological units, where the change in hydraulic conductivity may have facilitated biofilm formation and microbial activity. (lu.se)

Therefore, the location of biofilms in pore space increases the risks of biocolmatage of this space. (genetika.ru)

Exploring marine microbial community dynamics on natural and synthetic polymers" University of Warwick. (plymouth.ac.uk)

Serial dilutions were then made to evaluate microbial viability. (bvsalud.org)
Descriptive data analysis and, for microbial viability, Mann Whitney test were performed (p0.05). (bvsalud.org)
Biofilm formation and bacterial viability during the survival analysis were assessed. (medscape.com)

After biofilm formation, Firmicutes was eliminated while Spirochaetes involved in the interspecies relationship. (bvsalud.org)

Subpopulations of cells within the biofilm differentiate to perform various activities for motility, matrix production, and sporulation, supporting the overall success of the biofilm. (wikipedia.org)

Cellulose membrane disks (13 mm, N=12) were used for biofilm formation (24 h) of S. mutans and L. casei , which were treated (1 min) with 0.4% RPE or 0.12% Chlorhexidine (CHX). (bvsalud.org)

Additionally, the experimental approach could be used to discover other, potentially medically important biofilm-inhibiting bacterial, said Shank. (sciencedaily.com)

Anatomy1

Organisms13

Diseases2

Chemicals and Drugs26

Analytical, Diagnostic and Therapeutic Techniques and Equipment9

Phenomena and Processes13

Disciplines and Occupations1

Technology, Industry, Agriculture6

Health Care4

Microorganisms14

Cells growing in a1

Capacity to form biofilms2

Antimicrobial5

Surfaces14

Contamination5

Mechanisms8

Infections9

Pathogenesis1

Presence of candidal organisms2

Nutrients6

Dental unit waterline2

Reduce biofilm1

Inhibit3

Inhibition2

Colonization3

Wastewater3

Aeruginosa3

Strains3

Microbes2

Processes7

Fungi2

Planktonic bacteria2

Phosphorus uptake1

Vitro2

Staphylococcus1

Extracellular matrix1

Environments3

Adhere2

Biomass4

Communities8

Soil microbial2

Interaction1

Fungal2

Ecology5

Genes4

Characterize1

Disinfection2

Adhesion1

Diversity2

Aquatic1

Bacterium2

Experiments2

Concentration4

Structural3

Cholerae2

Organic1

20201

Composition1

Endoscope3

Polysaccharides3

Comprises1

Visualization1

Resistance2

Form6

Structures1

Characterization2

Degradation2

Pore1

Community dynamics1

Viability3

Interspecies1

Subpopulations1

Membrane1

Additionally1