Dangers of Nanoparticles in the Environment Cause for Concern
Author: University of Southern Denmark
Published: 2018/08/22 - Updated: 2024/12/01
Publication Type: Informative - Peer-Reviewed: Yes
Topic: Nanomedicine and Nanotechnology (Publications Database)
Page Content: Synopsis Introduction Main Item
Synopsis: Researchers warn that a combination of nanoparticles and contaminants may form a cocktail that is harmful to our cells.
Why it matters: This article highlights the potential dangers of nanoparticles in our environment, particularly when combined with other contaminants. The research conducted by Professor Frank Kjeldsen and his team at the University of Southern Denmark reveals a significant "cocktail effect" when nanosilver particles interact with cadmium ions, resulting in a much higher cell death rate (72%) compared to exposure to either substance alone. This finding is crucial because nanoparticles are increasingly prevalent in everyday products, yet there is a lack of regulation and understanding of their environmental impact. The study emphasizes the need for a more comprehensive approach to evaluating the safety of nanoparticles, considering their interactions with other environmental contaminants. Additionally, the article raises awareness about the potential link between nanoparticle exposure and serious diseases like cancer and neurological disorders, underscoring the urgency for further research and regulatory measures in this field - Disabled World.
Introduction
Nanoparticles in our environment may have more harmful effects than we think - Researchers warn that a combination of nanoparticles and contaminants may form a cocktail that is harmful to our cells. In their study, 72% of cells died after exposure to a cocktail of nano-silver and cadmium ions.
Main Item
Nanoparticles are becoming increasingly widespread in our environment. Thousands of products contain nanoparticles because of their unique properties. Silver nanoparticles are one example. They have an effective antibacterial effect and can be found in refrigerators, sports clothes, cosmetics, tooth brushes, water filters, etc.
Professor Frank Kjeldsen, SDU, has lead a cell study, that, in his view, causes concern. The study is published in Nanotoxicoloy.
There is a significant difference between how the cells react when exposed to nanosilver alone and when they are exposed to a cocktail of nanosilver and cadmium ions. Cadmium ions are naturally found everywhere around us on Earth.
In the Study
- 72% of the cells died, when exposed to both nanosilver and cadmium ions.
- When exposed to nanosilver only, 25% died.
- When exposed to cadmium ions only, 12% died.
Study was Conducted on Human Liver Cancer Cells
This study indicates, that we should not look at nanoparticles isolated when we investigate and discuss the effects, they may have on our health. We need to take cocktail effects into account, said Professor Frank Kjeldsen, Dept of Biochemistry and Molecular Biology, SDU, adding:
Products with nano particles are being developed and manufactured every day, but in most countries there are no regulations, so there is no way of knowing what and how many nanoparticles are being released into the environment. In my opinion, this should be stopped.
Other studies, led by Professor Kjeldsen have previously shown that human cells interact with metal nanoparticles. One study showed that nano-silver leads to the formation free radicals in cells and changes in the form and amount of proteins.
Many serious diseases are characterized by an overproduction of free radicals in cells. This applies to cancer and neurological diseases such as Alzheimer's and Parkinson's.
His research into metal nano particles is backed by a ERC Grant of 14 m DKK. Project title: Formation and Characterization of Protein Post-Translational Modifications and Assessment of Cellular Responses by Application of Metals in Biological Systems.
Attribution/Source(s):
This peer reviewed publication was selected for publishing by the editors of Disabled World due to its significant relevance to the disability community. Originally authored by University of Southern Denmark, and published on 2018/08/22 (Edit Update: 2024/12/01), the content may have been edited for style, clarity, or brevity. For further details or clarifications, University of Southern Denmark can be contacted at sdu.dk/en. NOTE: Disabled World does not provide any warranties or endorsements related to this article.
1 - NanoGripper Hand Made of DNA Grabs Viruses For Diagnostics and Blocks Cell Entry - DNA-based nanorobotic hand enables rapid and sensitive detection of COVID-19 virus and has potential applications in preventing viral infections and targeted drug delivery for cancer treatment.
2 - Flexible Artificial Retinas Use 2D Materials - The flexible artificial retina devices based on very thin 2D materials could someday restore sight to millions of people with retinal diseases.
3 - Dangers of Nanoparticles in the Environment Cause for Concern - Researchers warn that a combination of nanoparticles and contaminants may form a cocktail that is harmful to our cells.
Page Information, Citing and Disclaimer
Disabled World is a comprehensive online resource that provides information and news related to disabilities, assistive technologies, and accessibility issues. Founded in 2004 our website covers a wide range of topics, including disability rights, healthcare, education, employment, and independent living, with the goal of supporting the disability community and their families.
Cite This Page (APA): University of Southern Denmark. (2018, August 22 - Last revised: 2024, December 1). Dangers of Nanoparticles in the Environment Cause for Concern. Disabled World. Retrieved December 12, 2024 from www.disabled-world.com/medical/nanotechnology/nano-danger.php
Permalink: <a href="https://www.disabled-world.com/medical/nanotechnology/nano-danger.php">Dangers of Nanoparticles in the Environment Cause for Concern</a>: Researchers warn that a combination of nanoparticles and contaminants may form a cocktail that is harmful to our cells.
While we strive to provide accurate and up-to-date information, it's important to note that our content is for general informational purposes only. We always recommend consulting qualified healthcare professionals for personalized medical advice. Any 3rd party offering or advertising does not constitute an endorsement.