Bacterial adhesion to biomaterials: What regulates this attachment? A review

Kreve, Simone; Reis, Andréa Cândido dos

doi:10.1016/j.jdsr.2021.05.003

Cited by 129 publications

(83 citation statements)

References 107 publications

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“…Additional combinations with adhesive molecules, such as adhesive pili, proteins, and surface-bounded EPS, facilitate bacterial adhesion to a surface ( Kostakioti et al, 2013 ; Belas, 2014 ; Guo et al, 2021 ). Despite the effective adhesins, the attachment is fragile and usually transient during this stage, because of hydrodynamics and repulsive forces at the boundary layer and the inadequate production and function of adhesive molecules ( Petrova and Sauer, 2012 ; Kreve and Reis, 2021 ). Long-term attachment to the surface results in contact-dependent gene expression, which ultimately leads to the alteration from reversible to irreversible attachment.…”

Section: Biofilm Formation and Developmentmentioning

confidence: 99%

Formation, Development, and Cross-Species Interactions in Biofilms

et al. 2022

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Biofilms, which are essential vectors of bacterial survival, protect microbes from antibiotics and host immune attack and are one of the leading causes that maintain drug-resistant chronic infections. In nature, compared with monomicrobial biofilms, polymicrobial biofilms composed of multispecies bacteria predominate, which means that it is significant to explore the interactions between microorganisms from different kingdoms, species, and strains. Cross-microbial interactions exist during biofilm development, either synergistically or antagonistically. Although research into cross-species biofilms remains at an early stage, in this review, the important mechanisms that are involved in biofilm formation are delineated. Then, recent studies that investigated cross-species cooperation or synergy, competition or antagonism in biofilms, and various components that mediate those interactions will be elaborated. To determine approaches that minimize the harmful effects of biofilms, it is important to understand the interactions between microbial species. The knowledge gained from these investigations has the potential to guide studies into microbial sociality in natural settings and to help in the design of new medicines and therapies to treat bacterial infections.

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Section: Biofilm Formation and Developmentmentioning

confidence: 99%

Formation, Development, and Cross-Species Interactions in Biofilms

et al. 2022

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“…The biofilm gelatinous polymers known as EPS are 3D materials that carry intact microorganisms, attach them to a surface and protect them from environmental stress [ 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. There are several types present in the environment, such as that bound to cell surfaces (“capsular” EPS), released into solution (“free” EPS), or associated with the hydrated matrix of biofilms [ 40 ].…”

Section: Aspects Concerning Biofilm Formation and Disruptionmentioning

confidence: 99%

“…Among these, the polysaccharides are often the most abundant species found in the biofilm matrix [ 45 , 46 ]. Some Pseudomonas EPS polysaccharides, such as the Pea and Peb, described in P. putida , serve structural purposes, whereas others such as alginate and cellulose play a minor role in biofilm formation and stability but are important in stress protection against ROS generated during stress [ 39 ]. The role of both alginate and cellulose in protecting against the ROS stress comes from the hydrophilic nature of polysaccharides, considering that their ability to bind water might reduce the accumulation of intracellular ROS [ 45 ].…”

Section: Aspects Concerning Biofilm Formation and Disruptionmentioning

confidence: 99%

“…In the EPS structure, there are several weakly acidic groups (carboxyl, phosphoryl, amide, amino, hydroxyl) that ionize in response to changes in environmental pH, ionic strength [ 39 , 40 ] or in interaction with a metallic ion from the environment or an antimicrobial complex. Metal-proton exchange or metal coordination is not the only mechanism involved in metal interaction with EPS, and other processes, such as cation exchange or electrostatic interactions may also occur [ 39 , 40 , 47 ]. Among the groups with coordinative abilities, hydroxyl, carboxyl, amino and phosphates represent the main sites involved in interaction with metallic ions from complexes.…”

Section: Aspects Concerning Biofilm Formation and Disruptionmentioning

confidence: 99%

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Metal Complexes—A Promising Approach to Target Biofilm Associated Infections

2022

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Microbial biofilms are represented by sessile microbial communities with modified gene expression and phenotype, adhered to a surface and embedded in a matrix of self-produced extracellular polymeric substances (EPS). Microbial biofilms can develop on both prosthetic devices and tissues, generating chronic and persistent infections that cannot be eradicated with classical organic-based antimicrobials, because of their increased tolerance to antimicrobials and the host immune system. Several complexes based mostly on 3D ions have shown promising potential for fighting biofilm-associated infections, due to their large spectrum antimicrobial and anti-biofilm activity. The literature usually reports species containing Mn(II), Ni(II), Co(II), Cu(II) or Zn(II) and a large variety of multidentate ligands with chelating properties such as antibiotics, Schiff bases, biguanides, N-based macrocyclic and fused rings derivatives. This review presents the progress in the development of such species and their anti-biofilm activity, as well as the contribution of biomaterials science to incorporate these complexes in composite platforms for reducing the negative impact of medical biofilms.

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“…The polar or dispersive component of surface energy which is attributed to London forces (dispersion, orientation and induction) [2,9]. The polar component includes the orientation and induction forces of the dipoles which can be attributed to the formation of hydrogen bonds [2,10]. There are different approaches for estimating the value of the solid-liquid interfacial energy (γls) from the measured contact angles.…”

Section: Surface Free Energy and Adhesion Workmentioning

confidence: 99%

Hydrophobic Properties of CuO Thin Films Obtained by Sol-Gel Spin Coating Technique-Annealing Temperature Effect

Bougharouat¹,

Touka²,

Talbi³

et al. 2021

ACSM

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The adhesive characteristics of sol-gel copper oxide (CuO) film surfaces at annealing temperatures ranging from 350 to 550°C were examined in this work. Hydrophobic properties of these oxide film surfaces were studied by contact angle measurements. The surface energy was calculated from contact angle data using harmonic mean method. The structural, morphological and chemical analysis of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR). The increase in annealing temperature induces a reduction in the hydrophilic properties of the films (adhesive properties). The rise in the hydrophobicity of the CuO surface has been claimed to be explained by a change in interfacial tension. The FTIR spectroscopy analysis revealed that the increase in the annealing temperature eliminates activated neutral species (hydroxyl groups) reacting with the surface of the sample responsible for the wettability. SEM analysis showed that the morphology of the samples is nanostructured containing agglomerates of various forms, a few hundred nanometers in size, randomly dispersed across the surface. The enhanced roughness of the produced film is primarily responsible for the increased hydrophobicity of the films. The XRD data reveal that the films are highly textured and that increasing the annealing temperature induces better layer crystallization and confirms the development of copper oxide CuO.

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Bacterial adhesion to biomaterials: What regulates this attachment? A review

Cited by 129 publications

References 107 publications

Formation, Development, and Cross-Species Interactions in Biofilms

Formation, Development, and Cross-Species Interactions in Biofilms

Metal Complexes—A Promising Approach to Target Biofilm Associated Infections

Hydrophobic Properties of CuO Thin Films Obtained by Sol-Gel Spin Coating Technique-Annealing Temperature Effect

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