Results 31 to 40 of about 129,191 (261)

Screening of municipal effluents with the peroxidase toxicity assay

Discover Water
The peroxidase (Per) reaction is a quick and inexpensive biosensor for the screening of environmental contaminants and wastewaters. The purpose of this study was to screen various municipal wastewaters before and after 7 different types of treatment ...
Francois Gagné, Chantale André, Shirley-Ann Smyth   +2 more
doaj   +1 more source

Aquatic ecotoxicology: what has been accomplished and what lies ahead? An Eastern Canada historical perspective

Journal of Xenobiotics, 2013
Our recent history shows that degradation of aquatic ecosystems essentially stems from industrialization, urbanization and increasing human populations.
Christian Blaise, François Gagné
doaj   +1 more source

Micro and Nanostructural Diversity of Lizard Osteoderm Capping Tissue in Relation to Mechanical Performance

Advanced Functional Materials, EarlyView.
This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo, Marius Didziokas, Malene Siri Berg Jacobsen, Thorbjørn Erik Køppen Christensen, Innokenty Kantor, Mads Ry Vogel Jørgensen, Klaus Pagh Almtoft, Jesper Skovhus Thomsen, Anthony Herrel, Catherine J.A. Williams, Henrik Birkedal   +10 more
wiley   +1 more source

SiO2 and microparticle transport in a saturated porous medium: effects of particle size and flow rate

Applied Water Science
SiO2 and polystyrene (PS) are carriers of microorganisms and metals in porous media, which can produce changes in groundwater quality and cause issues related to clogging of the porous medium.
Qingling Meng, Fuqiang Shi, Wei Fan, Zhao Wen, Kaicheng Sun, Zijian Wang   +5 more
doaj   +1 more source

Investigation on the Toxicity of Nanoparticle Mixture in Rainbow Trout Juveniles

Nanomaterials, 2023
The environmental impacts of nanoparticle mixtures in the aquatic environment is not well understood. The purpose of this study examined the sub-lethal toxicity of low concentrations (ug/L range) of selected nanoparticles alone and in mixtures in ...
Joelle Auclair, Patrice Turcotte, Christian Gagnon, Caroline Peyrot, Kevin James Wilkinson, François Gagné   +5 more
doaj   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

Advanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Effect of background ions and physicochemical factors on the cotransport of microplastics with Cu2+ in saturated porous media

Scientific Reports
Microplastics (MPs) in subsurface environments are migratory and can carry heavy metals, increasing the extent of MP and heavy metal pollution. This study used quartz sand-filled column experiments to investigate the adsorption and cotransport behaviours
Qingling Meng, Zijian Wang, Fuqiang Shi, Kaicheng Sun, Zhao Wen   +4 more
doaj   +1 more source

Spin‐Dependent Generation of Surface‐Bound Radicals Toward Selective and Long‐Lasting Water Purification

Advanced Functional Materials, EarlyView.
This study develops a novel atomic engineering strategy to fine‐tune the spin state of α‐Fe2O3 catalysts toward a medium‐spin state, thereby modulating peroxymonosulfate activation and selectively yielding surface‐bound radicals. Compared with free radicals, surface‐bound radicals exhibit moderated oxidation potential, extended lifespan, surface ...
Shuyu Wang, Zhonglin Chen, Jimin Shen, Pengwei Yan, Jing Kang, Binyuan Wang, Shengxin Zhao, Xiaoguang Duan   +7 more
wiley   +1 more source

Growth Performance of Gilthead Sea Bream (Sparus aurata) Fed Low Fish Meal Diets With an Innovative Mixture of Low Trophic Ingredients

Aquaculture Nutrition
This study examined the growth performance, cellular signaling, and gut microbiome of gilthead sea bream (Sparus aurata) fed four diets using low-trophic-level ingredients for 65 days.
Anna Tampou, Katerina Kousoulaki, Antigoni Vasilaki, Nikolaos Vlahos, Eleni Nikouli, Nikolas Panteli, Konstantinos Feidantsis, Konstantinos Kormas, Styliani Andreopoulou, Ioannis T. Karapanagiotidis, Panagiotis Berillis, Ioannis Nengas, Efthimia Antonopoulou, Eleni Mente   +13 more
doaj   +1 more source

Population Characteristics of the Upper Infralittoral Sea Urchin Arbacia lixula (Linnaeus, 1758) in Eastern Mediterranean (Central Greece): An Indicator Species for Coastal Water Quality

Journal of Marine Science and Engineering, 2022
The black sea urchin (Arbacia lixula, Linnaeus, 1758) is a non-edible marine echinoderm of high ecological importance with the potential to affect marine ecological communities. A. lixula were sampled monthly for one year from the supralittoral fringe at
Dimitris Klaoudatos, Labrini Tziantziou, Alexios Lolas, Nikos Neofitou, Dimitris Vafidis   +4 more
doaj   +1 more source