Different physico-chemical properties (eg adsorption kinetics, thickness, viscoelasticity, and mechanical stability) of adsorbed salivary pellicles depend on different factors, including the properties (eg charge, roughness, wettability, and surface chemistry) of the substratum. Whether these differences in the physico-chemical properties are a result of differences in the composition or in the organization of the pellicles is not known. In this work, the influence of substratum wettability on the composition of the pellicle was studied. For this purpose, pellicles eluted from substrata of different but well-characterized wettabilities were examined by means of sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE). The results showed that substratum hydrophobicity did not have a major impact on pellicle composition. In all substrata, the major pellicle components were found to be cystatins, amylases and large glycoproteins, presumably mucins. In turn, interpretation of previously reported data based on the present results suggests that variations in substratum wettability mostly affect the organization of the pellicle components.
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http://dx.doi.org/10.1080/08927014.2014.974155 | DOI Listing |
Int Immunopharmacol
December 2024
Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China. Electronic address:
After acute myocardial infarction, the heart mainly relies on fibrosis remodeling repair to maintain the structural and functional integrity of the heart, however, excessive fibrosis is an important cause of heart failure. Macrophages play an important regulatory role in cardiac fibrosis and have been found to transform into myofibroblasts through their own phenotype. Based on the existing evidence and previous research results, we summarizes the potential and mechanism of macrophage-to-myofibroblast transition (MMT) in cardiac fibrosis.
View Article and Find Full Text PDFMicroorganisms
October 2024
Department of Food Science and Nutrition, School of the Environment, University of the Aegean, 81400 Myrina, Lemnos, Greece.
spp. are prevalent foodborne bacterial enteric pathogens. Their inclusion in biofilms on abiotic surfaces is considered a strategy that facilitates their extraintestinal survival.
View Article and Find Full Text PDFInt J Mol Sci
July 2024
Laboratory of Plant Microbiology, Intercollegiate Faculty of Biotechnology of University of Gdansk and Medical University of Gdansk, Abrahama 58, 80-307 Gdansk, Poland.
The ability of bacteria to colonize diverse environmental niches is often linked to their competence in biofilm formation. It depends on the individual characteristics of a strain, the nature of the colonized surface (abiotic or biotic), or the availability of certain nutrients. P482 efficiently colonizes the rhizosphere of various plant hosts, but a connection between plant tissue colonization and the biofilm formation ability of this strain has not yet been established.
View Article and Find Full Text PDFBull Math Biol
August 2024
Department of Applied Mathematics, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.
In this study we employ computational methods to investigate the influence of aeration strategies on simultaneous nitrification-denitrification processes. Specifically, we explore the impact of periodic and intermittent aeration on denitrification rates, which typically lag behind nitrification rates under identical environmental conditions. A two-dimensional deterministic multi-scale model is employed to elucidate the fundamental processes governing the behavior of membrane aerated biofilm reactors (MABRs).
View Article and Find Full Text PDFSci Total Environ
October 2024
University of Gdansk, Faculty of Oceanography and Geography, Al. Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland.
Biofilms can enhance the sorption of heavy metals onto microplastic (MP) surfaces. However, most research in this field relies on laboratory experiments and neglects metal fractions and seasonal variations. Further studies of the metal/biofilm interaction in the aquatic environment are essential for assessing the ecological threat that MPs pose.
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