Nanoparticles: Their potential toxicity, waste and environmental management

Bystrzejewska-Piotrowska, G.; Golimowski, Jerzy; Urban, Pawel L.

doi:10.1016/j.wasman.2009.04.001

Cited by 549 publications

(255 citation statements)

References 71 publications

Supporting

Mentioning

228

Contrasting

Unclassified

Order By: Relevance

“…Some microorganisms have even been used to decompose or remove pollutants in the environment (Joshi et al 1985;Ledin and Pedersen 1996). Following the wide use of NM, some of these materials or their derivatives can be released into the ambient environment during manufacture, application, disposal and recycling (Kashiwada 2006;Nel et al 2006;Bystrzejewska-Piotrowska et al 2009;Larese et al 2009). Long-term exposure of some of these materials could cause potential risks to microorganisms, and cause disturbance to the substance and energy distribution in ecosystems.…”

Section: Discussionmentioning

confidence: 99%

Toxicity effects of four typical nanomaterials on the growth of Escherichia coli, Bacillus subtilis and Agrobacterium tumefaciens

Wang

et al. 2011

Environ Earth Sci

View full text Add to dashboard Cite

To offer an insight into the toxicity of nanomaterials (NM) on the growth of bacteria, Escherichia coli (E. coli), Bacillus subtilis (B. subtilis) and Agrobacterium tumefaciens (A. tumefaciens) were exposed to nanoAu, nano-Ag, nano-Fe and fullerene (C 60 ) in this study. As an effective bactericide, nano-Ag induced high toxicity on these three bacteria; C 60 could inhibit their growth; however, B. subtilis and E. coli could recover as exposure time extended. Nano-Au and nano-Fe had hardly any effect on three bacteria. A. tumefaciens showed the lowest resistance and slowest growth rate during exposure. Images obtained by scanning electron microscope (SEM) revealed that nano-Ag could cause damage to the cell structure of three bacteria at 1 lg/mL. Slight damage on E. coli was found when exposed to C 60 , whereas no obvious physical damage was found after exposure to nano-Au or nano-Fe. It is assumed that surface activities of NM might be responsible for the different toxic effects on these bacteria.

show abstract

Section: Discussionmentioning

confidence: 99%

Toxicity effects of four typical nanomaterials on the growth of Escherichia coli, Bacillus subtilis and Agrobacterium tumefaciens

Wang

et al. 2011

Environ Earth Sci

View full text Add to dashboard Cite

show abstract

“…However, the release of ENPs from these products to the environment could result in environmental contamination by creating nano-waste which can create unknown potential ecotoxicological problems [2,5,34]. Moreover, the continuous production, utilization and subsequent release of ENPs will lead to their increase in environmental concentrations [34].…”

Section: Introductionmentioning

confidence: 99%

Determination of zinc oxide nanoparticles toxicity in root growth in wheat (Triticum aestivumL.) seedlings

Prakash¹,

Chung²

2016

Acta Biologica Hungarica

View full text Add to dashboard Cite

The effect of zinc oxide nanoparticles (ZnONPs) was studied in wheat (Triticum aestivum L.) seedlings under in vitro exposure conditions. To avoid precipitation of nanoparticles, the seedlings were grown in half strength semisolid Murashige and Skoog medium containing 0, 50, 100, 200, 400 and 500 mg L -1 of ZnONPs. Analysis of zinc (Zn) content showed significant increase in roots. In vivo detection using fluorescent probe Zynpyr-1 indicated accumulation of Zn in primary and lateral root tips. All concentrations of ZnONPs significantly reduced root growth. However, significant decrease in shoot growth was observed only after exposure to 400 and 500 mg L -1 of ZnONPs. The reactive oxygen species and lipid peroxidation levels significantly increased in roots. Significant increase in cell-wall bound peroxidase activity was observed after exposure to 500 mg L -1 of ZnONPs. Histochemical staining with phloroglucinol-HCl showed lignification of root cells upon exposure to 500 mg L -1 of ZnONPs. Treatment with propidium iodide indicated loss of cell viability in root tips of wheat seedlings. These results suggest that redox imbalances, lignification and cell death has resulted in reduction of root growth in wheat seedlings exposed to ZnONPs nanoparticles.

show abstract

“…Moreover, a growing number of commercially available textiles are fabricated with metal NPs in the structures; such NPs offer biocidal properties and prevent excessive sweating. The content of nAg in socks, pants, and shirts depends on the type of NPs used, their method of production, their shape and size and their physical and chemical properties (Makles 2005, Bystrzejewska-Piotrowska et al 2009, Menget et al 2007, Blaser et al 2008. Textiles available on the market contain an average of 31 to 2,600 ppm of nAg in T-shirts (Walser et al 2011), 0.9 to 1,358 ppm nAg in socks (Benn and Wasterhoff 2008), and 88 to 170 ppm nAg in socks made from cotton (Zhang et al 2009a).…”

Section: Presence Of Nanomaterials In the Environmentmentioning

confidence: 99%

Inorganic nanomaterials in the aquatic environment: behavior, toxicity, and interaction with environmental elements

Krzyżewska¹,

Kyzioł-Komosińska²,

Rosik-Dulewska³

et al. 2016

Archives of Environmental Protection

View full text Add to dashboard Cite

Abstract:The aim of this paper is to present characteristics, toxicity and environmental behavior of nanoparticles (NPs) (silver, copper, gold, zinc oxide, titanium dioxide, iron oxide) that most frequently occur in consumer products. In addition, NPs are addressed as the new aquatic environmental pollutant of the 21 st century. NPs are adsorbed onto particles in the aquatic systems (clay minerals, fulvic and humic acids), or they can adsorb environmental pollutants (heavy metal ions, organic compounds). Nanosilver (nAg) is released from consumer products into the aquatic environment. It can threaten aquatic organisms with high toxicity. Interestingly, copper nanoparticles (Cu-NPs) demonstrate higher toxicity to bacteria and aquatic microorganisms than those of nanosilver nAg. Their small size and reactivity can cause penetration into the tissues and interfere with the metabolic systems of living organisms and bacterial biogeochemical cycles. The behavior of NPs is not fully recognized. Nevertheless, it is known that NPs can agglomerate, bind with ions (chlorides, sulphates, phosphates) or organic compounds. They can also be bound or immobilized by slurry. The NPs behavior depends on process conditions, i.e. pH, ionic strength, temperature and presence of other chemical compounds. It is unknown how NPs behave in the aquatic environment. Therefore, the research on this problem should be carried out under different process conditions. As for the toxicity, it is important to understand where the differences in the research results come from. As NPs have an impact on not only aquatic organisms but also human health and life, it is necessary to recognize their toxic doses and know standards/regulations that determine the permissible concentrations of NPs in the environment.Unauthenticated Download Date | 5/12/18 7:36 AM

show abstract

Nanoparticles: Their potential toxicity, waste and environmental management

Cited by 549 publications

References 71 publications

Toxicity effects of four typical nanomaterials on the growth of Escherichia coli, Bacillus subtilis and Agrobacterium tumefaciens

Toxicity effects of four typical nanomaterials on the growth of Escherichia coli, Bacillus subtilis and Agrobacterium tumefaciens

Determination of zinc oxide nanoparticles toxicity in root growth in wheat (Triticum aestivumL.) seedlings

Inorganic nanomaterials in the aquatic environment: behavior, toxicity, and interaction with environmental elements

Contact Info

Product

Resources

About