ArticleApplied and environmental microbiology2010
Dispersion of TiO₂ nanoparticle agglomerates by Pseudomonas aeruginosa.
Article in Applied and environmental microbiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
22 citing papers in PubMed, 107 citations in OpenAlex.
- Green fabrication of chitosan nanoparticles using Lavendula angustifolia, optimization, characterization and in‑vitro antibiofilm activity.Scientific reports · 2023Article
- Surface modification of TiORSC advances · 2022Article
- The Response ofInternational journal of molecular sciences · 2020Article
- Investigating the potential use of an oleaginous bacterium, Rhodococcus opacus PD630, for nano-TiOEnvironmental science and pollution research international · 2020Article
- Facilitated transport of nTiOThe Science of the total environment · 2020Article
- Fueling a Hot Debate on the Application of TiOMaterials (Basel, Switzerland) · 2019Review
- Chlorpyrifos degradation via photoreactive TiOJournal of hazardous materials · 2019Article
- Alginic Acid-Aided Dispersion of Carbon Nanotubes, Graphene, and Boron Nitride Nanomaterials for Microbial Toxicity Testing.Nanomaterials (Basel, Switzerland) · 2018Article
- Ecotoxicological efficiency of advanced ozonation processes with TiOEnvironmental science and pollution research international · 2018Article
- NanoEHS beyond Toxicity - Focusing on Biocorona.Environmental science. Nano · 2017Article
- Article
- Assessment of agglomeration, co-sedimentation and trophic transfer of titanium dioxide nanoparticles in a laboratory-scale predator-prey model system.Scientific reports · 2016Article
- Bioaccumulation of Multiwall Carbon Nanotubes in Tetrahymena thermophila by Direct Feeding or Trophic Transfer.Environmental science & technology · 2016Article
- Considerations of Environmentally Relevant Test Conditions for Improved Evaluation of Ecological Hazards of Engineered Nanomaterials.Environmental science & technology · 2016Article
- Separation of Bacteria, Protozoa and Carbon Nanotubes by Density Gradient Centrifugation.Nanomaterials (Basel, Switzerland) · 2016Article
- Characterization of engineered TiO₂ nanomaterials in a life cycle and risk assessments perspective.Environmental science and pollution research international · 2015Review
- Decreased Phototoxic Effects of TiO₂ Nanoparticles in Consortium of Bacterial Isolates from Domestic Waste Water.PloS one · 2015Article
- The antibacterial effects of silver, titanium dioxide and silica dioxide nanoparticles compared to the dental disinfectant chlorhexidine on Streptococcus mutans using a suite of bioassays.Nanotoxicology · 2014Article
- Differential growth of and nanoscale TiO₂ accumulation in Tetrahymena thermophila by direct feeding versus trophic transfer from Pseudomonas aeruginosa.Applied and environmental microbiology · 2013Article
- Identification of soil bacteria susceptible to TiO2 and ZnO nanoparticles.Applied and environmental microbiology · 2012Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Engineered nanoparticles are increasingly incorporated into consumer products and are emerging as potential environmental contaminants. Upon environmental release, nanoparticles could inhibit bacterial processes, as evidenced by laboratory studies. Less is known regarding bacterial alteration of nanoparticles, including whether bacteria affect physical agglomeration states controlling nanoparticle settling and bioavailability. Here, the effects of an environmental strain of Pseudomonas aeruginosa on TiO₂ nanoparticle agglomerates formed in aqueous media are described. Environmental scanning electron microscopy and cryogenic scanning electron microscopy visually demonstrated bacterial dispersion of large agglomerates formed in cell culture medium and in marsh water. For experiments in cell culture medium, quantitative image analysis verified that the degrees of conversion of large agglomerates into small nanoparticle-cell combinations were similar for 12-h-growth and short-term cell contact experiments. Dispersion in cell growth medium was further characterized by size fractionation: for agglomerated TiO₂ suspensions in the absence of cells, 81% by mass was retained on a 5-μm-pore-size filter, compared to only 24% retained for biotic treatments. Filtrate cell and agglomerate sizes were characterized by dynamic light scattering, revealing that the average bacterial cell size increased from 1.4 μm to 1.9 μm because of nano-TiO₂ biosorption. High-magnification scanning electron micrographs showed that P. aeruginosa dispersed TiO₂ agglomerates by preferential biosorption of nanoparticles onto cell surfaces. These results suggest a novel role for bacteria in the environmental transport of engineered nanoparticles, i.e., growth-independent, bacterially mediated size and mass alterations of TiO₂ nanoparticle agglomerates.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.