Results 31 to 40 of about 449,131 (415)

Diffusion of antibiotics through a biofilm in the presence of diffusion and absorption barriers [PDF]

open access: yesPhys. Rev. E 102, 032408 (2020), 2020
We propose a model of antibiotic diffusion through a bacterial biofilm when diffusion and/or absorption barriers develop in the biofilm. The idea of this model is: We deduce details of the diffusion process in a medium in which direct experimental study is difficult, based on probing diffusion in external regions.
arxiv   +1 more source

Bacterial biofilms: a common cause of persistent infections.

open access: yesScience, 1999
Bacteria that attach to surfaces aggregate in a hydrated polymeric matrix of their own synthesis to form biofilms. Formation of these sessile communities and their inherent resistance to antimicrobial agents are at the root of many persistent and chronic
J. Costerton, P. Stewart, E. Greenberg
semanticscholar   +1 more source

Beyond Risk: Bacterial Biofilms and Their Regulating Approaches

open access: yesFrontiers in Microbiology, 2020
Bacterial biofilms are complex surface attached communities of bacteria held together by self-produced polymer matrixs mainly composed of polysaccharides, secreted proteins, and extracellular DNAs. Bacterial biofilm formation is a complex process and can
Musa Hassan Muhammad   +8 more
semanticscholar   +1 more source

Increased Osmolarity in Biofilm Triggers RcsB-Dependent Lipid A Palmitoylation in Escherichia coli

open access: yesmBio, 2018
Biofilms are often described as protective shelters that preserve bacteria from hostile surroundings. However, biofilm bacteria are also exposed to various stresses and need to adjust to the heterogeneous physicochemical conditions prevailing within ...
Magdalena Szczesny   +2 more
doaj   +1 more source

Lifestyle-specific S-nitrosylation of protein cysteine thiols regulates Escherichia coli biofilm formation and resistance to oxidative stress

open access: yesnpj Biofilms and Microbiomes, 2021
Communities of bacteria called biofilms are characterized by reduced diffusion, steep oxygen, and redox gradients and specific properties compared to individualized planktonic bacteria.
Nicolas Barraud   +5 more
doaj   +1 more source

Biofilms: Microbial Life on Surfaces

open access: yesEmerging Infectious Diseases, 2002
Microorganisms attach to surfaces and develop biofilms. 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 ...
R. Donlan
semanticscholar   +1 more source

Pseudomonas aeruginosa Biofilms

open access: yesInternational Journal of Molecular Sciences, 2020
Pseudomonas aeruginosa is an opportunistic human pathogen causing devastating acute and chronic infections in individuals with compromised immune systems.
Minh Tam Tran Thi   +2 more
semanticscholar   +1 more source

Diagnosis of bacterial vaginosis by a new multiplex peptide nucleic acid fluorescence in situ hybridization method [PDF]

open access: yesPeerJ, 2015
Bacterial vaginosis (BV) is one of most common vaginal infections. However, its diagnosis by classical methods reveals low specificity. Our goal was to evaluate the accuracy diagnosis of 150 vaginal samples with research gold standard methods and our ...
António Machado   +4 more
doaj   +2 more sources

An Edible Biopolymeric Microcapsular Wrapping Integrating Lytic Bacteriophage Particles for Salmonella enterica: Potential for Integration into Poultry Feed

open access: yesAntibiotics, 2023
This research work aimed at developing an edible biopolymeric microcapsular wrapping (EBMW) integrating lytic bacteriophage particles for Salmonella enterica, with potential application in poultry feed for biocontrol of that pathogen.
Arthur O. Pereira   +7 more
doaj   +1 more source

Changes in tolerance to herbicide toxicity throughout development stages of phototrophic biofilms [PDF]

open access: yes, 2013
Ecotoxicological experiments have been performed in laboratory-scale microcosms to investigate thesensitivity of phototrophic biofilm communities to the alachlor herbicide, in relation to the stages ofphototrophic biofilm maturation (age of the ...
Delmas, François   +6 more
core   +4 more sources

Home - About - Disclaimer - Privacy