Silver nanoparticles and silver nitrate induce high toxicity to Pseudokirchneriella subcapitata, Daphnia magna and Danio rerio

Ribeiro, Fabianne; Gallego-Urrea, Julián Alberto; Jurkschat, Kerstin; Crossley, Alison; Hassellöv, Martin; Taylor, C J; Soares, Amadeu M.V.M.; Loureiro, Susana

doi:10.1016/j.scitotenv.2013.06.101

Cited by 221 publications

(150 citation statements)

References 35 publications

Supporting

Mentioning

131

Contrasting

Unclassified

Order By: Relevance

“…These concentrations are around 3-orders of magnitude below the current lowest reported effect values for aquatic organisms (EC50 of 1 µg/L for Daphnia magna 21 d reproduction test (Ribeiro et al, 2014)) .…”

Section: Resultsmentioning

confidence: 62%

Particulate and colloidal silver in sewage effluent and sludge discharged from British wastewater treatment plants

et al. 2014

View full text Add to dashboard Cite

Contact CEH NORA team at noraceh@ceh.ac.ukThe NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. ABSTRACTDifferential filtration was used to measure silver (>2 nm) entering and leaving nine sewage treatment plants (STPs). The mean concentration of colloidal (2-450 nm) silver, which includes nanosilver, was found to be 12 ng/L in the influent and 6 ng/L in the effluent. For particulate silver (>450 nm) the mean values were 3.3 µg/L for influent and 0.08 µg/L for effluent. Thus, removal was around 50% and 98% for colloidal and particulate silver respectively. There was no significant difference in performance between the different types of STP investigated (three examples each of activated sludge, biological filter and biological filter with tertiary treatment located across England, UK). In addition, treated sewage sludge samples (biosolids) were taken from several STPs to measure the total silver likely to be discharged to soils. Total silver was 3-14 mg/kg DW in the sludge (median 3.6), which if the sludge were added at the recommended rate to soil, would add 11 µg/kg/yr to the top 20 cm soil layer. Predicted concentrations using the LF2000-WQX model for all the rivers of England and Wales for nanosilver were typically in the 0-1 ng/L range but levels up to 4 ng/L are possible in a high discharge and low flow scenario. Predicted concentrations for the total particulate forms were mostly below 50 ng/L except for a high discharge and low flow scenario where concentrations could reach 135 ng/L.

show abstract

Section: Resultsmentioning

confidence: 62%

Particulate and colloidal silver in sewage effluent and sludge discharged from British wastewater treatment plants

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Two variations of silver nanoparticles, named as NP1 and NP2, were synthesized by an eco-friendly route, exploiting the high reduction power that leaf extracts offer [12,16]. Through this, a minimum use of chemicals (just AgNO3) is required, minimizing the environmental impact that conventional silver nanoparticles possess (Ribeiro et al 2014).…”

Section: Discussionmentioning

confidence: 99%

“…In addition, the green synthesis offers a one-step fabrication and stabilization of the nanoparticles, since the plant extract reduces Ag+ to Ag0 and the material constituents act as capping agents to the system, adding at the same time biocompatible functionalities into these NPs for enhancing further biological interactions [16]. The low toxicity of such NPs in mammalians reduces environmental risks such as acute toxic effects or bioaccumulation [24].…”

Section: Discussionmentioning

confidence: 99%

The Effect of Silver Nanoparticles Size, Produced Using Plant Extract from Arbutus Unedo, on Their Antibacterial Efficacy

Skandalis

Dimopoulou

Georgopoulou

et al. 2017

Preprint

View full text Add to dashboard Cite

Silver nanoparticles (AgNPs) have been demonstrated to restrain bacterial growth while maintaining the minimal risk in development of bacterial resistance and human cell toxicity that conventional silver compounds exhibit. Several physical and chemical methods have been reported to synthesize AgNPs. However, these methods are expensive and involve heavy chemical reduction agents. An alternative approach to produce AgNPs in a cost-effective and environmentally friendly way employs a biological pathway using various plant extracts to reduce metal ions. The size control issue and the stability of nanoparticles remain some of the latest challenges in such methods. In this study, we used two different concentrations of fresh leaf extract of the plant Arbutus Unedo (LEA) as a reducing and stabilizing agent to produce two size variations of AgNPs. UV-Vis spectroscopy, Dynamic Light Scattering, Transmission Electron Microscopy and zeta potential were applied for the characterization of AgNPs. Both AgNP variations were evaluated for their antibacterial efficacy against the gram-negative species Escherichia coli and Pseudomonas aeruginosa, as well as the gram-positive species Bacillus subtilis and Staphylococcus epidermidis. Although significant differences have been achieved in the nanoparticles' size by varying the plant extract concentration during synthesis, the antibacterial effect was almost similar.

show abstract

“…The most toxic form of silver nanoparticles is the silver ion. [43] Concentration of these nanoparticles is increasing in aquatic environment and can strongly affect and damage the biota. [21,44] For instance, Ag NP concentrations above 5 g/L have already been found for groundwater, surface water and drinking water.…”

Section: Nps' Impact On Microalgaementioning

confidence: 99%

Understanding bioenergy production and optimisation at the nanoscale – a review

Rahman

Melville

Huq

et al. 2016

Journal of Experimental Nanoscience

View full text Add to dashboard Cite

Nanotechnology has an increasingly large impact on a wide range of biotechnological, pharmacological and pure technological applications. Its current use in bioenergy production from biomass is very limited. This paper examines the potential interrelationships between nanotechnology and bioenergy production through a comprehensive literature review and analysis of data from biomass characterisation studies. The aim of this review is to indicate how nanotechnology can be applied in biomass-tobioenergy conversion. This study shows currently nanotechnology has been applied in the production of only two types of biomass, i.e. sludge and algae. Hence, interaction of nanomaterials with active sludge and algal cells were examined. Our extensive literature review indicates that anaerobic digestion process in sludge can potentially be enhanced by using magnetite nanoparticles, which gives higher methane yields. On the other hand, nanosilver reduces growth and causes adverse effects on the morphology of green algae. This process for bioenergy generation has already been successfully applied to sludge and algae biomass. Our study confirms that the process can also be used in the production of bioenergy from the other biomasses, such as agricultural wastes and industrial residues. Outcomes of this work will be an important tool for implementing nanotechnology in bioenergy research.

show abstract

Silver nanoparticles and silver nitrate induce high toxicity to Pseudokirchneriella subcapitata, Daphnia magna and Danio rerio

Cited by 221 publications

References 35 publications

Particulate and colloidal silver in sewage effluent and sludge discharged from British wastewater treatment plants

Particulate and colloidal silver in sewage effluent and sludge discharged from British wastewater treatment plants

The Effect of Silver Nanoparticles Size, Produced Using Plant Extract from Arbutus Unedo, on Their Antibacterial Efficacy

Understanding bioenergy production and optimisation at the nanoscale – a review

Contact Info

Product

Resources

About