The impacts of aluminum and zirconium nano-oxides on planktonic and biofilm bacteria

Chrzanowska, Nina; Załęska-Radziwiłł, Monika

doi:10.1080/19443994.2014.884528

Cited by 26 publications

(18 citation statements)

References 23 publications

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“…Furthermore, our previous study [7] on NPs' influence on planktonic and biofilm bacteria participate in wastewater treatment, showed inhibitory effects of Al2O3 NPs in higher concentrations and stimulation of the bacteria growth in lower concentrations, which confirms that the tested NPS in this study (after 24 h at high concentrations), can inhibit growth/amount of microorganisms of activated sludge, and thus, affect their metabolism and wastewater treatment processes.…”

Section: Resultssupporting

confidence: 55%

“…The inhibition effect of the nanoparticles on microorganism's growth in activated sludge has been reported [4,6,7]. In the literature there are also a few reports about influence NPs on biological processes of nitrogen and phosphorus removal as well as on denitrifying bacteria and microorganisms responsible for phosphorus elimination, the so-called PAO (polyphosphate accumulating organisms).…”

Section: Introductionmentioning

confidence: 99%

“…The use of aluminium oxide nanoparticles in various applications may cause a release of the oxidized form of nanoAl2O3, into the environment. As utilization of nanomaterials is on the rise, it is increasingly important to determine their potential environmental destiny and the effects [2,7].…”

Section: Introductionmentioning

confidence: 99%

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Effect of aluminium oxide nanoparticles on the enzymatic activity on microorganisms of activated sludge

2018

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Abstract.The increased production and commercial use of nanoparticles (NPs), combined with a lack of regulation regarding their disposal, may result in the unwanted introduction of NPs to wastewater. Wastewater nutrient removal depends on the metabolisms of activated sludge bacteria and their related key enzymes. Therefore, the aim of this work was to determine the effect of aluminium oxide nanoparticles concentrations on the activated sludge enzymatic activity of microorganisms. Tested nanoparticles inhibition cellular respiration in TTC method in the four highest tested concentrations. Moreover, in most samples observed increase dehydrogenase activity. In this study, nano-Al2O3 also caused a clear stimulation of the activity of hydrolytic enzymes microorganisms of activate sludge. Effects of aluminum oxide (compound in bulk forms) on enzymatic activity were different than in the case of the nano from of Al2O3.

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Section: Resultssupporting

confidence: 55%

Section: Introductionmentioning

confidence: 99%

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Effect of aluminium oxide nanoparticles on the enzymatic activity on microorganisms of activated sludge

2018

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“…Only scarce information is available on fate, transport and effects in the environment of metal-based particles such as nano-Al 2 O 3 . Aluminum oxide NPs are currently used by the military and commercial industries as components of coatings and propellants and their widespread use may result in the release into the environment [19,20,21].…”

Section: Introductionmentioning

confidence: 99%

Effects of aluminium oxide nanoparticles on bacterial growth

2017

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Abstract. Production and wide application of nanomaterials have led to nanotechnology development but their release to environment and the induction of toxic reactions, affects the natural microbial communities. Therefore, studies on the impact of nanoparticles on microorganisms and environment are required and needed. The aim of this study was to assess the impact of aluminium oxide nanoparticles on the growth of Pseudomonas putida. To compare the harmfulness of different forms of aluminium oxide, the ecotoxicity of its macro-forms was also evaluated in the study. Research showed that the exposure to nanoparticles can negatively influence microorganisms. The EC 50 -16h determined in this study was 0.5 mg/l, and NOEC equaled 0.19 mg/l. Nano-Al 2 O 3 proved to be more toxic to P. putida than aluminium oxide. This indicates that the nano-form of a given substance demonstrates different properties and may constitute a far greater danger for the environment than the same substance in the large form. According to EU and US EPA criteria, nano-Al 2 O 3 proved to be very toxic and highly toxic, respectively. Changes in bacterial communities caused by nanoparticles may affect the normal biological, chemical and nutrient cycle in the ecosystem and the effect triggered by nanomaterials in relation to other organisms is unpredictable.

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“…The effect of ceramic nanoparticles on the activity of bacteria and fungi was chiefly investigated for oxides of metals and carbon. The following materials demonstrate antibacterial properties: nano‐ZnO, nano‐Al 2 O 3 , nano‐Al 2 O 3 and nano‐ZrO 2 , nano‐ZnO/FeO, nano‐TiO 2, and nano‐ZnO, and aluminum oxide modified with other metals . Nanodiamond is harmless to bacteria, yet toxic to cancer cells just as is the case of graphene while oxy‐graphene displays both antifungal and antibacterial properties .…”

Section: Introductionmentioning

confidence: 99%

Peculiar Role of the Metallic States on the Nano‐MoS₂ Ceramic Particle Surface in Antimicrobial and Antifungal Activity

Karwowska

Kostecki

Sokołowska

et al. 2014

Int J Applied Ceramic Tech

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This study concerns the interactions of two chemically different materials hBN (covalent-ionic bonds) and MoS 2 (covalentionic and dispersive bonds) with bacteria and fungi. The materials used in the study were in the form of micro-and nanocrystals. Countable inactivation of microorganisms (Staphylococcus aureus, Sarcina lutea, Aspergillus niger, Escherichia coli) took place only in the case of MoS 2 nanosheets. The authors of the study suppose that the bioactivity of nano-MoS 2 can be associated with the presence of "metallic states," which are present only on their surface.

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The impacts of aluminum and zirconium nano-oxides on planktonic and biofilm bacteria

Cited by 26 publications

References 23 publications

Effect of aluminium oxide nanoparticles on the enzymatic activity on microorganisms of activated sludge

Effect of aluminium oxide nanoparticles on the enzymatic activity on microorganisms of activated sludge

Effects of aluminium oxide nanoparticles on bacterial growth

Peculiar Role of the Metallic States on the Nano‐MoS₂ Ceramic Particle Surface in Antimicrobial and Antifungal Activity

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The impacts of aluminum and zirconium nano-oxides on planktonic and biofilm bacteria

Cited by 26 publications

References 23 publications

Effect of aluminium oxide nanoparticles on the enzymatic activity on microorganisms of activated sludge

Effect of aluminium oxide nanoparticles on the enzymatic activity on microorganisms of activated sludge

Effects of aluminium oxide nanoparticles on bacterial growth

Peculiar Role of the Metallic States on the Nano‐MoS2 Ceramic Particle Surface in Antimicrobial and Antifungal Activity

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Product

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Peculiar Role of the Metallic States on the Nano‐MoS₂ Ceramic Particle Surface in Antimicrobial and Antifungal Activity