Adhesives based on formaldehyde
– environmental problems

Wojtkowska, Małgorzata; Załęska-Radziwiłł, Monika; Tabernacka, Agnieszka

doi:10.5114/bta.2017.66617

Cited by 30 publications

(25 citation statements)

References 68 publications

(45 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Carbon nanotubes have a wide range of uses, ranging from electronic components to composites used to produce of vehicles. Many nanomaterials are used as membrane filters to remove pollution from water [1, 2,3,4,5].…”

Section: Introductionmentioning

confidence: 99%

Effects of aluminium oxide nanoparticles on bacterial growth

2017

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of aluminium oxide nanoparticles on bacterial growth

2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…The mortality points were marked on the y-axis, while the dose of drilling cuttings was marked on the x-axis. The dose of LC50 is determined by the abscissa of the crossing of curve with the straight line corresponding to 50% mortality [10].…”

Section: Methodsmentioning

confidence: 99%

Earthworms as bio-indicators of chemical pollution in soils with drilling waste

Kujawska

Pawłowska

2017

E3S Web Conf.

View full text Add to dashboard Cite

The deposited drilling waste may alter the functioning of soil ecosystems by disrupting the soil fauna. The wastes contain toxic compounds such as metals or hydrocarbons, which tend to accumulate in the living. In the research, earthworms were used u as bio-indicators of soil pollution resulting from the presence of pollution contained in drilling waste. The aim of this study is to evaluation of toxicity of the waste of spent oil and water drilling cuttings to earthworm Eisenia fetida. Oil-based and water-based drilling cuttings were added to soil, used six doses of drilling wastes (5%, 10%, 15%, 25%, 30%, 50%). The results showed that the 45 days LC50 of oil-based drilling cuttings ranged 18%, LC50 of water-based drilling cuttings ranged 33%. In general, mortality increases with increasing dosage waste.

show abstract

“…Nanostruktury przedostają się do płynów ustrojowych, tkanek i narządów człowieka, stwarzając liczne zagrożenia. Jest to obszar tylko częściowo rozpoznany (11,13,18), a wiele opisanych bądź postulowanych skutków zdrowotnych wymaga potwierdzenia i dalszych analiz. Z pewnością badania te należy rozszerzyć o określenie wpływu nanomateriałów na tkanki pacjenta i poszczególne komórki narządów, będących celem leków wprowadzanych na nanonośnikach.…”

Section: Nrunclassified

“…Mogą kumulować się w tkankach tworząc złogi w organellach komórkowych, wpływać na strukturę i właściwości błon biologicznych, uszkadzać DNA, zaburzać procesy metaboliczne oraz wywoływać reakcje stresu komórkowego, m.in. indukując wytwarzanie wolnych rodników tlenowych (1,2,3,8,11,17,20). W przypadku nanocząstek srebra, stwierdzono ich negatywne działanie na komórki układu immunologicznego, m.in.…”

Section: Dyskusjaunclassified

Effect of colloidal silver and copper nanoparticles on generation of radical oxygen species (ROS) in human neutrophils

Kosecka-Strojek¹,

Kaszycki²,

Regdos³

et al. 2019

Med Dosw Mikrobiol

View full text Add to dashboard Cite

Introduction: Silver and copper nanoparticles (AgNPs, CuNPs) applied as hydronanocolloids are known to produce strong antibacterial and antifungal activities. They are extensively used in a number of applications including pharmacy, medicine and cosmetology (especially for surface-applied treatment of skin lesions) as well as agriculture, industry (paint, construction, etc.) and home or office (mainly disinfection applications). Moreover, there is a promising perspective of an intra-systemic NP use, especially to optimize targeted drug delivery. For the above reasons NPs cause risk of penetrating human body and exerting toxic effects and/or stress reactions. This issue has inspired the authors to launch studies on the influence of colloidal AgNPs and CuNPs on physiological potential of neutrophils, blood-cells acting as the first line of immunological defense. Methods: Physiological activity of neutrophils was evaluated by measuring their ability to generate oxygen radicals (radical oxygen species, ROS) due to the respiratory (oxidative) burst mechanism. Human, peripheral blood-isolated neutrophils were stimulated with a standard activating agent (polystyrene latex particles) to develop high physiological potential revealed by enhanced ability to produce oxygen radicals. The cells were treated with silver and copper hydronanocolloids (each applied at concentrations ranging from 0.4 to 50 mg/kg) alternatively: in the absence and presence of the mentioned activator. The level of generated ROS upon oxidative burst was monitored chemiluminometrically. Results: The tested Ag and Cu-nanocolloids were not toxic against neutrophils although they hampered mitochondrial dehydrogenase activities when applied at higher levels. At lower concentrations they tended to stimulate ROS generation; however the treatment did not launch the oxidative burst. In the case of the latex-stimulated neutrophils, both types of nanoparticles in all experimental variants did not influence the levels of produced ROS. Conclusions: The obtained results indicate that the exposure of human neutrophils to colloidal AgNPs and CuNPs does not lead to an enhanced ROS generation, which may enable direct intra-blood application of the tested nanostructures, provided further necessary toxicological studies are carried out.

show abstract

Adhesives based on formaldehyde – environmental problems

Cited by 30 publications

References 68 publications

Effects of aluminium oxide nanoparticles on bacterial growth

Effects of aluminium oxide nanoparticles on bacterial growth

Earthworms as bio-indicators of chemical pollution in soils with drilling waste

Effect of colloidal silver and copper nanoparticles on generation of radical oxygen species (ROS) in human neutrophils

Contact Info

Product

Resources

About