Nanosilver and the microbiological activity of the particulate solids versus the leached soluble silver

https://doi.org/10.1080/17435390.2018.1434910

2018-02-15

Nanosilver (Ag NPs) is currently one of the most commercialized antimicrobial nanoparticles with as yet, still unresolved cytotoxicity origins. To date, research efforts have mostly described the antimicrobial contribution from the leaching of soluble silver,...

Metabolomics reveals the depletion of intracellular metabolites in HepG2 cells after treatment with gold nanoparticles

https://doi.org/10.1080/17435390.2018.1432779

2018-02-02

Studies on the safety of gold nanoparticles (GNPs) are plentiful due to their successful application in drug delivery and treatment of diseases in trials. Cytotoxicity caused by GNPs has been studied on the physiological and biochemical level; yet, the effect...

Comparative toxicity of three differently shaped carbon nanomaterials on Daphnia magna: does a shape effect exist?

https://doi.org/10.1080/17435390.2018.1430258

2018-02-01

The acute toxicity of three differently shaped carbon nanomaterials (CNMs) was studied on Daphnia magna, comparing the induced effects and looking for the toxic mechanisms. We used carbon nano-powder (CNP), with almost spherical primary particle morphology, m...

Short-term inhalation study of graphene oxide nanoplates

https://doi.org/10.1080/17435390.2018.1431318

2018-02-01

Graphene oxides possess unique physicochemical properties with important potential applications in electronics, pharmaceuticals, and medicine. However, the toxicity following inhalation exposure to graphene oxide has not yet been clarified. Therefore, this st...

Copper oxide nanoparticles induce collagen deposition via TGF-β1/Smad3 signaling in human airway epithelial cells

https://doi.org/10.1080/17435390.2018.1432778

2018-01-31

Use and application of nanoparticles has increased in recent years. Copper oxide nanoparticles (CuONPs) are one of the most common types of nanoparticles, and they are mainly used as catalysts and preservatives. However, limited toxicity data are available on...

Characterization of the proteome and lipidome profiles of human lung cells after low dose and chronic exposure to multiwalled carbon nanotubes

https://doi.org/10.1080/17435390.2018.1425500

2018-01-19

The effects of long-term chronic exposure of human lung cells to multi-walled carbon nanotubes (MWCNT) and their impact upon cellular proteins and lipids were investigated. Since the lung is the major target organ, an in vitro normal bronchial epithelial cell...

Graphene oxide regulates cox2 in human embryonic kidney 293T cells via epigenetic mechanisms: dynamic chromosomal interactions

https://doi.org/10.1080/17435390.2018.1425498

2018-01-16

To extend the applications of engineered nanomaterials, such as graphene oxide (GO), it is necessary to minimize cytotoxicity. However, the mechanisms underlying this cytotoxicity are unclear. Dynamic chromosomal interactions have been used to illustrate the ...

Macrophage polarization and activation at the interface of multi-walled carbon nanotube-induced pulmonary inflammation and fibrosis

https://doi.org/10.1080/17435390.2018.1425501

2018-01-16

Pulmonary exposure to carbon nanotubes (CNTs) induces fibrosing lesions in the lungs that manifest rapid-onset inflammatory and fibrotic responses, leading to chronic fibrosis in animals and health concerns in exposed humans. The mechanisms underlying CNT-ind...

Inhibition of the proteasome activity by graphene oxide contributes to its cytotoxicity

https://doi.org/10.1080/17435390.2018.1425503

2018-01-16

Due to its hydrophobicity and other unique physicochemical properties, graphene oxide (GO) has been extensively utilized in various biological applications. However, introducing nanomaterials into the biological environment may raise serious risk in terms of ...

Dendritic polyglycerol nanoparticles show charge dependent bio-distribution in early human placental explants and reduce hCG secretion

https://doi.org/10.1080/17435390.2018.1425496

2018-01-15

A thorough understanding of nanoparticle bio-distribution at the feto-maternal interface will be a prerequisite for their diagnostic or therapeutic application in women of childbearing age and for teratologic risk assessment. Therefore, the tissue interaction...