Results 31 to 40 of about 15,926 (204)

A colloidal singularity reveals the crucial role of colloidal stability for nanomaterials in-vitro toxicity testing: nZVI-microalgae colloidal system as a case study. [PDF]

open access: yesPLoS ONE, 2014
Aggregation raises attention in Nanotoxicology due to its methodological implications. Aggregation is a physical symptom of a more general physicochemical condition of colloidal particles, namely, colloidal stability.
Soledad Gonzalo   +8 more
doaj   +1 more source

Mechanism of cellular uptake of genotoxic silica nanoparticles. [PDF]

open access: yes, 2012
Mechanisms for cellular uptake of nanoparticles have important implications for nanoparticulate drug delivery and toxicity. We have explored the mechanism of uptake of amorphous silica nanoparticles of 14 nm diameter, which agglomerate in culture medium ...
Brown, AP   +5 more
core   +3 more sources

Informing Selection of Nanomaterial Concentrations for ToxCast In Vitro Testing based on Occupational Exposure Potential [PDF]

open access: yes, 2011
Background: Little justification is generally provided for selection of in vitro assay testing concentrations for engineered nanomaterials (ENMs). Selection of concentration levels for hazard evaluation based on real-world exposure scenarios is desirable.
Gangwal, Sumit   +6 more
core   +1 more source

Carbon nanotubes induce inflammation but decrease the production of reactive oxygen species in lung [PDF]

open access: yes, 2010
With the rapid spread of carbon nanotubes (CNTs) applications, the respiratory toxicity of these compounds has attracted the attention of many scientists. Several studies have reported that after lung administration, CNTs could induce granuloma, fibrosis,
Arnaud, R.   +7 more
core   +1 more source

An integrated methodology for assessing the impact of food matrix and gastrointestinal effects on the biokinetics and cellular toxicity of ingested engineered nanomaterials

open access: yesParticle and Fibre Toxicology, 2017
Background Engineered nanomaterials (ENMs) are increasingly added to foods to improve their quality, sensory appeal, safety and shelf-life. Human exposure to these ingested ENMs (iENMS) is inevitable, yet little is known of their hazards.
Glen M. DeLoid   +12 more
doaj   +1 more source

Safety of Gold Nanoparticles: From In Vitro to In Vivo Testing Array Checklist

open access: yesPharmaceutics, 2023
In recent years, gold nanoparticles (AuNPs) have aroused the interest of many researchers due to their unique physicochemical and optical properties.
Joana Lopes   +11 more
doaj   +1 more source

Cytotoxicity in the Age of Nano: The Role of Fourth Period Transition Metal Oxide Nanoparticle Physicochemical Properties [PDF]

open access: yes, 2013
A clear understanding of physicochemical factors governing nanoparticle toxicity is still in its infancy. We used a systematic approach to delineate physicochemical properties of nanoparticles that govern cytotoxicity.
Aronstam, Robert S.   +7 more
core   +2 more sources

Biological impact assessment of nanomaterial used in nanomedicine. introduction to the NanoTEST project. [PDF]

open access: yes, 2015
Therapeutic nanoparticles (NPs) are used in nanomedicine as drug carriers or imaging agents, providing increased selectivity/specificity for diseased tissues.
Collins, AR   +6 more
core   +2 more sources

Effects of food-borne nanomaterials on gastrointestinal tissues and microbiota [PDF]

open access: yes, 2017
Ingestion of engineered nanomaterials is inevitable due to their addition to food and prevalence in food packaging and domestic products such as toothpaste and sun cream.
Bouwmeester, Hans   +2 more
core   +5 more sources

The limits of testing particle-mediated oxidative stress in vitro in predicting diverse pathologies; relevance for testing of nanoparticles

open access: yesParticle and Fibre Toxicology, 2009
In vitro studies with particles are a major staple of particle toxicology, generally used to investigate mechanisms and better understand the molecular events underlying cellular effects. However, there is ethical and financial pressure in nanotoxicology,
Gulumian Mary   +3 more
doaj   +1 more source

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