"Because of the dynamic, size and density-dependent nature of ENP delivery to cells in vitro, the biological consequences of agglomeration are not discernible from static measures of exposure concentration (μg/ml) alone, highlighting the central importance of integrated physical characterisation and quantitative dosimetry for in vitro studies. The combined experimental and computational approach provides a quantitative framework for evaluating relationships between the biocompatibility of nanoparticles and their physical and chemical characteristics."
Nano-capsules that can modulate the release of the incorporated substances may have applications in the formulation of functional foods, as well as relevance in food preservation and storage, according to new research.
The emergence of nanotechnology developments using nanodevices/ nanomaterials opens up potential novel applications in agriculture and food sector. Smart delivery systems, biosensors and nanoarrays are being designed to solve the ...
"Scientist Mengshi Lin and his colleagues tested the extent to which silver nanoparticles remain as a residue on and even penetrate into the pulp of fresh fruit. They immersed the pears in a nanosilver solution that is similar to a pesticide application and repeatedly washed and rinsed them. After four days, the nanoparticles remained attached to the skin of the pears and had also become embedded into their pulp.
The penetration of silver nanoparticles is dangerous to consumers because they have the ability to relocate in the human body after digestion. Therefore, smaller nanoparticles may be more harmful to consumers than larger counterparts,” says Lin."
"A new study suggests there’s more to nanoparticle toxicology than cell life and death. Although immune cells treated with iron oxide particles appeared healthy in standard toxicology tests, they struggled to perform one of their key jobs: engulfing pathogenic bacteria (ACS Nano 2013, DOI: 10.1021/nn402145t). The researchers wonder if exposure to significant levels of the nanoparticles could lead to dysfunction in people’s immune systems."
"'The penetration of silver nanoparticles is dangerous to consumers because they have the ability to relocate in the human body after digestion,' Lin says. 'Therefore, smaller nanoparticles may be more harmful to consumers than larger counterparts.'
When ingested, nanoparticles pass into the blood and lymph system, circulate through the body and reach potentially sensitive sites such as the spleen, brain, liver, and heart.
The growing trend to use other types of nanoparticles has revolutionized the food industry by enhancing flavors, improving supplement delivery, keeping food fresh longer, and brightening the colors of food. However, researchers worry that the use of silver nanoparticles could harm the human body."
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