Results 111 to 120 of about 1,238,691 (243)

Microbial Extracellular Polymeric Substances: Ecological Function and Impact on Soil Aggregation [PDF]

, 2018
A wide range of microorganisms produce extracellular polymeric substances (EPS), highly hydrated polymers that are mainly composed of polysaccharides, proteins and DNA.
Ohana Y. A. Costa, Jos M. Raaijmakers, Eiko E. Kuramae   +2 more
core   +1 more source

Effect of electrolytic zero-valent iron activated sodium hypochlorite on sludge dewatering performance

Water Science and Technology
Using electrolytic zero-valent iron-activated sodium hypochlorite (EZVI-NaClO) to pretreat sludge, the capillary suction time (CST) was utilized to evaluate sludge dewaterability.
Shaodong Guo, Yuhang Wu, Zhangyu Wang, Xi Yin   +3 more
doaj   +1 more source

A Cytoplasmic pH Sensor Redefines Gating in Bacterial Urea Channels and Acid Resistance

Small, EarlyView.
Bacterial survival in acidic environments requires pH‐gated urea channels. Utilizing complementary approaches, we identify a conserved cytoplasmic glutamic acid residue as a pH sensor in UreI channels. Whereas Gram‐positive bacteria rely solely on this sensor, Gram‐negative bacteria employ a dual‐sensor mechanism with periplasmic residues, revealing a ...
Anna Stoib, Sahar Shojaei, Xenia Fischer, Sandra Posch, Gianluca Parisse, Mario Frezzini, Tobias Putz, Christine Siligan, Nikolaus Goessweiner‐Mohr, Daniele Narzi, Andreas Horner   +10 more
wiley   +1 more source

Photocatalytic and Biotechnological Strategies for Remediation of Persistent Organic Pollutants: Mechanisms, Toxicity, and Antimicrobial Perspectives

Environmental Toxicology, EarlyView.
ABSTRACT Persistent organic pollutants (POPs) pose significant ecological and human health risks due to their persistence, bioaccumulation, toxicity, and global distribution. Conventional remediation methods are often inadequate for achieving complete mineralization, demonstrating the need for advanced and substantial approaches.
Viola O. Okechukwu, Patrick B. Njobeh, Jonathan O. Okonkwo   +2 more
wiley   +1 more source

Vinegar–hydrogen peroxide for cleaning removable partial dentures: Antibiofilm efficacy and electrochemical degradation on a cobalt–chromium surface

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated the antibiofilm activity and electrochemical degradation effects of a combined solution of alcohol vinegar with 4% acetic acid and 3% hydrogen peroxide (3:1 by volume) on a cobalt–chromium (Co–Cr) surface.
Fernanda Zanelatto de Castro Paiva, Leonardo Guedes da Silva Moraes, Carolina Alves Freiria de Oliveira, Viviane de Cássia Oliveira, Ana Paula Macedo, Rodrigo Galo, Cláudia Helena Silva‐Lovato, Valéria Oliveira Pagnano   +7 more
wiley   +1 more source

Characterization of the redox-active extracellular polymeric substances in an anaerobic methanotrophic consortium

Anaerobic oxidation of methane (AOM) is a microbial process of importance in the global carbon cycle. AOM is predominantly mediated by anaerobic methanotrophic archaea (ANME), the physiology of which is still poorly understood.
Virdis, Bernardino, Kong, Zheng, Zhao, Jing, Rabiee, Hesamoddin, Hu, Shihu, Wang, Zhiyao, Wang, Suicao, Zhang, Xueqin, Yuan, Zhiguo, https://orcid.org/, Erler, Dirk V.   +10 more
core   +1 more source

Quantification of extracellular polymeric substances in biofilms by confocal laser scanning microscopy

, 2001
Extracellular polymeric substances (EPS) in a biofilm were quantified by measuring the total cell volume from a 3-D image of the biofilm using confocal laser scanning microscope after staining cells with a fluorescent dye specific for nucleic acids.
Zhang, T, Fang, HHP
core   +1 more source

Processes and Patterns of Dolomite Precipitation in Aptian Pre‐Salt Deposits of Santos Basin, Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The Aptian pre‐salt lacustrine carbonates represent the most significant oil exploration target along the South Atlantic margin. Dolomitization of the Santos Basin Barra Velha Formation (BVF) is critical for reservoir quality, yet its origin, patterns, and evolution remain poorly understood.
J. T. F. Oste, R. Fricks Sayão, L. F. De Ros, L. Borghi   +3 more
wiley   +1 more source

Nanoparticles in Periodontology and Implant Dentistry: From Mechanisms to Clinical Applications

Journal of Periodontal Research, EarlyView.
Nanotechnology holds significant promise in improving dental care, yet there is a need for more reliable clinical studies to validate its effectiveness and safety. ABSTRACT Recent advances in nanotechnology are reshaping the landscape of periodontology and implant dentistry, particularly through the application of nanoparticles (NPs).
Chun Xu, Yuan Chen, Mario Romandini, Håvard Jostein Haugen, Sašo Ivanovski   +4 more
wiley   +1 more source

Architecture and Evolution of Prokaryotic Multicellularity: Common Patterns and Diversity

Molecular Microbiology, EarlyView.
Prokaryotes form diverse multicellular structures, like biofilms, filaments, and aggregates, comprising hallmark traits such as adhesion, communication, differentiation, and programmed cell death. This review explores how these forms develop, function, and evolve in response to environmental cues.
Genevieve Sohl, Arthur Schubert, Thorsten Mascher, Enrico Sandro Colizzi   +3 more
wiley   +1 more source